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pact-jvm-consumer_2.11 from group au.com.dius (version 3.5.24)
Pact consumer
=============
Pact Consumer is used by projects that are consumers of an API.
Most projects will want to use pact-consumer via one of the test framework specific projects. If your favourite
framework is not implemented, this module should give you all the hooks you need.
Provides a DSL for use with Java to build consumer pacts.
## Dependency
The library is available on maven central using:
* group-id = `au.com.dius`
* artifact-id = `pact-jvm-consumer_2.11`
## DSL Usage
Example in a JUnit test:
```java
import au.com.dius.pact.model.MockProviderConfig;
import au.com.dius.pact.model.RequestResponsePact;
import org.apache.http.entity.ContentType;
import org.jetbrains.annotations.NotNull;
import org.junit.Test;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import static au.com.dius.pact.consumer.ConsumerPactRunnerKt.runConsumerTest;
import static org.junit.Assert.assertEquals;
public class PactTest {
@Test
public void testPact() {
RequestResponsePact pact = ConsumerPactBuilder
.consumer("Some Consumer")
.hasPactWith("Some Provider")
.uponReceiving("a request to say Hello")
.path("/hello")
.method("POST")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
.toPact();
MockProviderConfig config = MockProviderConfig.createDefault();
PactVerificationResult result = runConsumerTest(pact, config, new PactTestRun() {
@Override
public void run(@NotNull MockServer mockServer) throws IOException {
Map expectedResponse = new HashMap();
expectedResponse.put("hello", "harry");
assertEquals(expectedResponse, new ConsumerClient(mockServer.getUrl()).post("/hello",
"{\"name\": \"harry\"}", ContentType.APPLICATION_JSON));
}
});
if (result instanceof PactVerificationResult.Error) {
throw new RuntimeException(((PactVerificationResult.Error)result).getError());
}
assertEquals(PactVerificationResult.Ok.INSTANCE, result);
}
}
```
The DSL has the following pattern:
```java
.consumer("Some Consumer")
.hasPactWith("Some Provider")
.given("a certain state on the provider")
.uponReceiving("a request for something")
.path("/hello")
.method("POST")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
.uponReceiving("another request for something")
.path("/hello")
.method("POST")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
.
.
.
.toPact()
```
You can define as many interactions as required. Each interaction starts with `uponReceiving` followed by `willRespondWith`.
The test state setup with `given` is a mechanism to describe what the state of the provider should be in before the provider
is verified. It is only recorded in the consumer tests and used by the provider verification tasks.
### Building JSON bodies with PactDslJsonBody DSL
The body method of the ConsumerPactBuilder can accept a PactDslJsonBody, which can construct a JSON body as well as
define regex and type matchers.
For example:
```java
PactDslJsonBody body = new PactDslJsonBody()
.stringType("name")
.booleanType("happy")
.hexValue("hexCode")
.id()
.ipAddress("localAddress")
.numberValue("age", 100)
.timestamp();
```
#### DSL Matching methods
The following matching methods are provided with the DSL. In most cases, they take an optional value parameter which
will be used to generate example values (i.e. when returning a mock response). If no example value is given, a random
one will be generated.
| method | description |
|--------|-------------|
| string, stringValue | Match a string value (using string equality) |
| number, numberValue | Match a number value (using Number.equals)\* |
| booleanValue | Match a boolean value (using equality) |
| stringType | Will match all Strings |
| numberType | Will match all numbers\* |
| integerType | Will match all numbers that are integers (both ints and longs)\* |
| decimalType | Will match all real numbers (floating point and decimal)\* |
| booleanType | Will match all boolean values (true and false) |
| stringMatcher | Will match strings using the provided regular expression |
| timestamp | Will match string containing timestamps. If a timestamp format is not given, will match an ISO timestamp format |
| date | Will match string containing dates. If a date format is not given, will match an ISO date format |
| time | Will match string containing times. If a time format is not given, will match an ISO time format |
| ipAddress | Will match string containing IP4 formatted address. |
| id | Will match all numbers by type |
| hexValue | Will match all hexadecimal encoded strings |
| uuid | Will match strings containing UUIDs |
| includesStr | Will match strings containing the provided string |
| equalsTo | Will match using equals |
| matchUrl | Defines a matcher for URLs, given the base URL path and a sequence of path fragments. The path fragments could be
strings or regular expression matchers |
_\* Note:_ JSON only supports double precision floating point values. Depending on the language implementation, they
may parsed as integer, floating point or decimal numbers.
#### Ensuring all items in a list match an example (2.2.0+)
Lots of the time you might not know the number of items that will be in a list, but you want to ensure that the list
has a minimum or maximum size and that each item in the list matches a given example. You can do this with the `arrayLike`,
`minArrayLike` and `maxArrayLike` functions.
| function | description |
|----------|-------------|
| `eachLike` | Ensure that each item in the list matches the provided example |
| `maxArrayLike` | Ensure that each item in the list matches the provided example and the list is no bigger than the provided max |
| `minArrayLike` | Ensure that each item in the list matches the provided example and the list is no smaller than the provided min |
For example:
```java
DslPart body = new PactDslJsonBody()
.minArrayLike("users")
.id()
.stringType("name")
.closeObject()
.closeArray();
```
This will ensure that the users list is never empty and that each user has an identifier that is a number and a name that is a string.
#### Matching JSON values at the root (Version 3.2.2/2.4.3+)
For cases where you are expecting basic JSON values (strings, numbers, booleans and null) at the root level of the body
and need to use matchers, you can use the `PactDslJsonRootValue` class. It has all the DSL matching methods for basic
values that you can use.
For example:
```java
.consumer("Some Consumer")
.hasPactWith("Some Provider")
.uponReceiving("a request for a basic JSON value")
.path("/hello")
.willRespondWith()
.status(200)
.body(PactDslJsonRootValue.integerType())
```
#### Root level arrays that match all items (version 2.2.11+)
If the root of the body is an array, you can create PactDslJsonArray classes with the following methods:
| function | description |
|----------|-------------|
| `arrayEachLike` | Ensure that each item in the list matches the provided example |
| `arrayMinLike` | Ensure that each item in the list matches the provided example and the list is no bigger than the provided max |
| `arrayMaxLike` | Ensure that each item in the list matches the provided example and the list is no smaller than the provided min |
For example:
```java
PactDslJsonArray.arrayEachLike()
.date("clearedDate", "mm/dd/yyyy", date)
.stringType("status", "STATUS")
.decimalType("amount", 100.0)
.closeObject()
```
This will then match a body like:
```json
[ {
"clearedDate" : "07/22/2015",
"status" : "C",
"amount" : 15.0
}, {
"clearedDate" : "07/22/2015",
"status" : "C",
"amount" : 15.0
}, {
"clearedDate" : "07/22/2015",
"status" : "C",
"amount" : 15.0
} ]
```
#### Matching arrays of arrays (version 3.2.12/2.4.14+)
For the case where you have arrays of arrays (GeoJSON is an example), the following methods have been provided:
| function | description |
|----------|-------------|
| `eachArrayLike` | Ensure that each item in the array is an array that matches the provided example |
| `eachArrayWithMaxLike` | Ensure that each item in the array is an array that matches the provided example and the array is no bigger than the provided max |
| `eachArrayWithMinLike` | Ensure that each item in the array is an array that matches the provided example and the array is no smaller than the provided min |
For example (with GeoJSON structure):
```java
new PactDslJsonBody()
.stringType("type","FeatureCollection")
.eachLike("features")
.stringType("type","Feature")
.object("geometry")
.stringType("type","Point")
.eachArrayLike("coordinates") // coordinates is an array of arrays
.decimalType(-7.55717)
.decimalType(49.766896)
.closeArray()
.closeArray()
.closeObject()
.object("properties")
.stringType("prop0","value0")
.closeObject()
.closeObject()
.closeArray()
```
This generated the following JSON:
```json
{
"features": [
{
"geometry": {
"coordinates": [[-7.55717, 49.766896]],
"type": "Point"
},
"type": "Feature",
"properties": { "prop0": "value0" }
}
],
"type": "FeatureCollection"
}
```
and will be able to match all coordinates regardless of the number of coordinates.
#### Matching any key in a map (3.3.1/2.5.0+)
The DSL has been extended for cases where the keys in a map are IDs. For an example of this, see
[#313](https://github.com/DiUS/pact-jvm/issues/313). In this case you can use the `eachKeyLike` method, which takes an
example key as a parameter.
For example:
```java
DslPart body = new PactDslJsonBody()
.object("one")
.eachKeyLike("001", PactDslJsonRootValue.id(12345L)) // key like an id mapped to a matcher
.closeObject()
.object("two")
.eachKeyLike("001-A") // key like an id where the value is matched by the following example
.stringType("description", "Some Description")
.closeObject()
.closeObject()
.object("three")
.eachKeyMappedToAnArrayLike("001") // key like an id mapped to an array where each item is matched by the following example
.id("someId", 23456L)
.closeObject()
.closeArray()
.closeObject();
```
For an example, have a look at [WildcardKeysTest](../pact-jvm-consumer-junit/src/test/java/au/com/dius/pact/consumer/WildcardKeysTest.java).
**NOTE:** The `eachKeyLike` method adds a `*` to the matching path, so the matching definition will be applied to all keys
of the map if there is not a more specific matcher defined for a particular key. Having more than one `eachKeyLike` condition
applied to a map will result in only one being applied when the pact is verified (probably the last).
**Further Note: From version 3.5.22 onwards pacts with wildcards applied to map keys will require the Java system property
"pact.matching.wildcard" set to value "true" when the pact file is verified.**
### Matching on paths (version 2.1.5+)
You can use regular expressions to match incoming requests. The DSL has a `matchPath` method for this. You can provide
a real path as a second value to use when generating requests, and if you leave it out it will generate a random one
from the regular expression.
For example:
```java
.given("test state")
.uponReceiving("a test interaction")
.matchPath("/transaction/[0-9]+") // or .matchPath("/transaction/[0-9]+", "/transaction/1234567890")
.method("POST")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
```
### Matching on headers (version 2.2.2+)
You can use regular expressions to match request and response headers. The DSL has a `matchHeader` method for this. You can provide
an example header value to use when generating requests and responses, and if you leave it out it will generate a random one
from the regular expression.
For example:
```java
.given("test state")
.uponReceiving("a test interaction")
.path("/hello")
.method("POST")
.matchHeader("testreqheader", "test.*value")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
.matchHeader("Location", ".*/hello/[0-9]+", "/hello/1234")
```
### Matching on query parameters (version 3.3.7+)
You can use regular expressions to match request query parameters. The DSL has a `matchQuery` method for this. You can provide
an example value to use when generating requests, and if you leave it out it will generate a random one
from the regular expression.
For example:
```java
.given("test state")
.uponReceiving("a test interaction")
.path("/hello")
.method("POST")
.matchQuery("a", "\\d+", "100")
.matchQuery("b", "[A-Z]", "X")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
```
25 downloads
Artifact pact-jvm-consumer_2.11
Group au.com.dius
Version 3.5.24
Last update 04. November 2018
Organization not specified
URL https://github.com/DiUS/pact-jvm
License Apache 2
Dependencies amount 17
Dependencies kotlin-stdlib-jdk8, kotlin-reflect, slf4j-api, groovy-all, kotlin-logging, scala-library, scala-logging_2.11, pact-jvm-model, pact-jvm-matchers_2.11, diffutils, automaton, httpclient, json, netty-handler, httpmime, unfiltered-netty-server_2.11, fluent-hc,
There are maybe transitive dependencies!
Group au.com.dius
Version 3.5.24
Last update 04. November 2018
Organization not specified
URL https://github.com/DiUS/pact-jvm
License Apache 2
Dependencies amount 17
Dependencies kotlin-stdlib-jdk8, kotlin-reflect, slf4j-api, groovy-all, kotlin-logging, scala-library, scala-logging_2.11, pact-jvm-model, pact-jvm-matchers_2.11, diffutils, automaton, httpclient, json, netty-handler, httpmime, unfiltered-netty-server_2.11, fluent-hc,
There are maybe transitive dependencies!
pact-jvm-provider-junit_2.10 from group au.com.dius (version 2.4.20)
# Pact junit runner
## Overview
Library provides ability to play contract tests against a provider service in JUnit fashionable way.
Supports:
- Out-of-the-box convenient ways to load pacts
- Easy way to change assertion strategy
- **org.junit.BeforeClass**, **org.junit.AfterClass** and **org.junit.ClassRule** JUnit annotations, that will be run
once - before/after whole contract test suite.
- **org.junit.Before**, **org.junit.After** and **org.junit.Rule** JUnit annotations, that will be run before/after
each test of an interaction.
- **au.com.dius.pact.provider.junit.State** custom annotation - before each interaction that requires a state change,
all methods annotated by `@State` with appropriate the state listed will be invoked.
## Example of HTTP test
```java
@RunWith(PactRunner.class) // Say JUnit to run tests with custom Runner
@Provider("myAwesomeService") // Set up name of tested provider
@PactFolder("pacts") // Point where to find pacts (See also section Pacts source in documentation)
public class ContractTest {
// NOTE: this is just an example of embedded service that listens to requests, you should start here real service
@ClassRule //Rule will be applied once: before/after whole contract test suite
public static final ClientDriverRule embeddedService = new ClientDriverRule(8332);
@BeforeClass //Method will be run once: before whole contract test suite
public static void setUpService() {
//Run DB, create schema
//Run service
//...
}
@Before //Method will be run before each test of interaction
public void before() {
// Rest data
// Mock dependent service responses
// ...
embeddedService.addExpectation(
onRequestTo("/data"), giveEmptyResponse()
);
}
@State("default", "no-data") // Method will be run before testing interactions that require "default" or "no-data" state
public void toDefaultState() {
// Prepare service before interaction that require "default" state
// ...
System.out.println("Now service in default state");
}
@TestTarget // Annotation denotes Target that will be used for tests
public final Target target = new HttpTarget(8332); // Out-of-the-box implementation of Target (for more information take a look at Test Target section)
}
```
## Example of AMQP Message test
```java
@RunWith(PactRunner.class) // Say JUnit to run tests with custom Runner
@Provider("myAwesomeService") // Set up name of tested provider
@PactBroker(host="pactbroker", port = "80")
public class ConfirmationKafkaContractTest {
@TestTarget // Annotation denotes Target that will be used for tests
public final Target target = new AmqpTarget(); // Out-of-the-box implementation of Target (for more information take a look at Test Target section)
@BeforeClass //Method will be run once: before whole contract test suite
public static void setUpService() {
//Run DB, create schema
//Run service
//...
}
@Before //Method will be run before each test of interaction
public void before() {
// Message data preparation
// ...
}
@PactVerifyProvider('an order confirmation message')
String verifyMessageForOrder() {
Order order = new Order()
order.setId(10000004)
order.setPrice(BigDecimal.TEN)
order.setUnits(15)
def message = new ConfirmationKafkaMessageBuilder()
.withOrder(order)
.build()
JsonOutput.toJson(message)
}
}
```
## Pact source
The Pact runner will automatically collect pacts based on annotations on the test class. For this purpose there are 3
out-of-the-box options (files from a directory, files from a set of URLs or a pact broker) or you can easily add your
own Pact source.
**Note:** You can only define one source of pacts per test class.
### Download pacts from a pact-broker
To use pacts from a Pact Broker, annotate the test class with `@PactBroker(host="host.of.pact.broker.com", port = "80")`.
From _version 3.2.2/2.4.3+_ you can also specify the protocol, which defaults to "http".
The pact broker will be queried for all pacts with the same name as the provider annotation.
For example, test all pacts for the "Activity Service" in the pact broker:
```java
@RunWith(PactRunner.class)
@Provider("Activity Service")
@PactBroker(host = "localhost", port = "80")
public class PactJUnitTest {
@TestTarget
public final Target target = new HttpTarget(5050);
}
```
#### _Version 3.2.3/2.4.4+_ - Using Java System properties
The pact broker loader was updated to allow system properties to be used for the hostname, port or protocol. The port
was changed to a string to allow expressions to be set.
To use a system property or environment variable, you can place the property name in `${}` expression de-markers:
```java
@PactBroker(host="${pactbroker.hostname}", port = "80")
```
You can provide a default value by separating the property name with a colon (`:`):
```java
@PactBroker(host="${pactbroker.hostname:localhost}", port = "80")
```
#### _Version ???/???+_ - More Java System properties
The default values of the `@PactBroker` annotation now enable variable interpolation.
The following keys may be managed through the environment
* `pactbroker.host`
* `pactbroker.port`
* `pactbroker.protocol`
* `pactbroker.tags` (comma separated)
* `pactbroker.auth.scheme`
* `pactbroker.auth.username`
* `pactbroker.auth.password`
#### _Version 3.2.4/2.4.6+_ - Using tags with the pact broker
The pact broker allows different versions to be tagged. To load all the pacts:
```java
@PactBroker(host="pactbroker", port = "80", tags = {"latest", "dev", "prod"})
```
The default value for tags is `latest` which is not actually a tag but instead corresponds to the latest version ignoring the tags. If there are multiple consumers matching the name specified in the provider annotation then the latest pact for each of the consumers is loaded.
For any other value the latest pact tagged with the specified tag is loaded.
Specifying multiple tags is an OR operation. For example if you specify `tags = {"dev", "prod"}` then both the latest pact file tagged with `dev` and the latest pact file taggged with `prod` is loaded.
#### _Version 3.3.4/2.4.19+_ - Using basic auth with the with the pact broker
You can use basic authentication with the `@PactBroker` annotation by setting the `authentication` value to a `@PactBrokerAuth`
annotation. For example:
```java
@PactBroker(host = "${pactbroker.url:localhost}", port = "1234", tags = {"latest", "prod", "dev"},
authentication = @PactBrokerAuth(username = "test", password = "test"))
```
The `username` and `password` values also take Java system property expressions.
### Pact Url
To use pacts from urls annotate the test class with
```java
@PactUrl(urls = {"http://build.server/zoo_app-animal_service.json"} )
```
### Pact folder
To use pacts from a resource folder of the project annotate test class with
```java
@PactFolder("subfolder/in/resource/directory")
```
### Custom pacts source
It's possible to use a custom Pact source. For this, implement interface `au.com.dius.pact.provider.junit.loader.PactLoader`
and annotate the test class with `@PactSource(MyOwnPactLoader.class)`. **Note:** class `MyOwnPactLoader` must have a default empty constructor or a constructor with one argument of class `Class` which at runtime will be the test class so you can get custom annotations of test class.
## Test target
The field in test class of type `au.com.dius.pact.provider.junit.target.Target` annotated with `au.com.dius.pact.provider.junit.target.TestTarget`
will be used for actual Interaction execution and asserting of contract.
**Note:** there must be exactly 1 such field, otherwise an `InitializationException` will be thrown.
### HttpTarget
`au.com.dius.pact.provider.junit.target.HttpTarget` - out-of-the-box implementation of `au.com.dius.pact.provider.junit.target.Target`
that will play pacts as http request and assert response from service by matching rules from pact.
_Version 3.2.2/2.4.3+_ you can also specify the protocol, defaults to "http".
### AmqpTarget
`au.com.dius.pact.provider.junit.target.AmqpTarget` - out-of-the-box implementation of `au.com.dius.pact.provider.junit.target.Target`
that will play pacts as an AMQP message and assert response from service by matching rules from pact.
#### Modifying the requests before they are sent [Version 3.2.3/2.4.5+]
Sometimes you may need to add things to the requests that can't be persisted in a pact file. Examples of these would
be authentication tokens, which have a small life span. The HttpTarget supports request filters by annotating methods
on the test class with `@TargetRequestFilter`. These methods must be public void methods that take a single HttpRequest
parameter.
For example:
```java
@TargetRequestFilter
public void exampleRequestFilter(HttpRequest request) {
request.addHeader("Authorization", "OAUTH hdsagasjhgdjashgdah...");
}
```
__*Important Note:*__ You should only use this feature for things that can not be persisted in the pact file. By modifying
the request, you are potentially modifying the contract from the consumer tests!
#### Turning off URL decoding of the paths in the pact file [version 3.3.3+]
By default the paths loaded from the pact file will be decoded before the request is sent to the provider. To turn this
behaviour off, set the system property `pact.verifier.disableUrlPathDecoding` to `true`.
__*Important Note:*__ If you turn off the url path decoding, you need to ensure that the paths in the pact files are
correctly encoded. The verifier will not be able to make a request with an invalid encoded path.
### Custom Test Target
It's possible to use custom `Target`, for that interface `Target` should be implemented and this class can be used instead of `HttpTarget`.
# Verification Reports [versions 3.2.7/2.4.9+]
The default test behaviour is to display the verification being done to the console, and pass or fail the test via the normal
JUnit mechanism. From versions 3.2.7/2.4.9+, additional reports can be generated from the tests.
## Enabling additional reports via annotations on the test classes
A `@VerificationReports` annotation can be added to any pact test class which will control the verification output. The
annotation takes a list report types and an optional report directory (defaults to "target/pact/reports").
The currently supported report types are `console`, `markdown` and `json`.
For example:
```java
@VerificationReports({"console", "markdown"})
public class MyPactTest {
```
will enable the markdown report in addition to the normal console output. And,
```java
@VerificationReports(value = {"markdown"}, reportDir = "/myreports")
public class MyPactTest {
```
will disable the normal console output and write the markdown reports to "/myreports".
## Enabling additional reports via Java system properties or environment variables
The additional reports can also be enabled with Java System properties or environment variables. The following two
properties have been introduced: `pact.verification.reports` and `pact.verification.reportDir`.
`pact.verification.reports` is the comma separated list of report types to enable (e.g. `console,json,markdown`).
`pact.verification.reportDir` is the directory to write reports to (defaults to "target/pact/reports").
## Additional Reports
The following report types are available in addition to console output (`console`, which is enabled by default):
`markdown`, `json`.
You can also provide a fully qualified classname as report so custom reports are also supported.
This class must implement `au.com.dius.pact.provider.reporters.VerifierReporter` interface in order to be correct custom implementation of a report.
Group: au.com.dius Artifact: pact-jvm-provider-junit_2.10
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3 downloads
Artifact pact-jvm-provider-junit_2.10
Group au.com.dius
Version 2.4.20
Last update 14. April 2018
Organization not specified
URL https://github.com/DiUS/pact-jvm
License Apache 2
Dependencies amount 9
Dependencies slf4j-api, scala-library, pact-jvm-provider_2.10, fluent-hc, httpclient, junit, commons-lang3, jackson-databind, commons-collections4,
There are maybe transitive dependencies!
Group au.com.dius
Version 2.4.20
Last update 14. April 2018
Organization not specified
URL https://github.com/DiUS/pact-jvm
License Apache 2
Dependencies amount 9
Dependencies slf4j-api, scala-library, pact-jvm-provider_2.10, fluent-hc, httpclient, junit, commons-lang3, jackson-databind, commons-collections4,
There are maybe transitive dependencies!
pact-jvm-consumer-groovy_2.10 from group au.com.dius (version 2.4.20)
pact-jvm-consumer-groovy
=========================
Groovy DSL for Pact JVM
## Dependency
The library is available on maven central using:
* group-id = `au.com.dius`
* artifact-id = `pact-jvm-consumer-groovy_2.11`
* version-id = `2.4.x` or `3.2.x`
## Usage
Add the `pact-jvm-consumer-groovy` library to your test class path. This provides a `PactBuilder` class for you to use
to define your pacts. For a full example, have a look at the example JUnit `ExampleGroovyConsumerPactTest`.
If you are using gradle for your build, add it to your `build.gradle`:
dependencies {
testCompile 'au.com.dius:pact-jvm-consumer-groovy_2.11:3.2.14'
}
Then create an instance of the `PactBuilder` in your test.
```groovy
@Test
void "A service consumer side of a pact goes a little something like this"() {
def alice_service = new PactBuilder() // Create a new PactBuilder
alice_service {
serviceConsumer "Consumer" // Define the service consumer by name
hasPactWith "Alice Service" // Define the service provider that it has a pact with
port 1234 // The port number for the service. It is optional, leave it out to
// to use a random one
given('there is some good mallory') // defines a provider state. It is optional.
uponReceiving('a retrieve Mallory request') // upon_receiving starts a new interaction
withAttributes(method: 'get', path: '/mallory') // define the request, a GET request to '/mallory'
willRespondWith( // define the response we want returned
status: 200,
headers: ['Content-Type': 'text/html'],
body: '"That is some good Mallory."'
)
}
// Execute the run method to have the mock server run.
// It takes a closure to execute your requests and returns a Pact VerificationResult.
VerificationResult result = alice_service.run() {
def client = new RESTClient('http://localhost:1234/')
def alice_response = client.get(path: '/mallory')
assert alice_response.status == 200
assert alice_response.contentType == 'text/html'
def data = alice_response.data.text()
assert data == '"That is some good Mallory."'
}
assert result == PactVerified$.MODULE$ // This means it is all good in weird Scala speak.
}
```
After running this test, the following pact file is produced:
{
"provider" : {
"name" : "Alice Service"
},
"consumer" : {
"name" : "Consumer"
},
"interactions" : [ {
"provider_state" : "there is some good mallory",
"description" : "a retrieve Mallory request",
"request" : {
"method" : "get",
"path" : "/mallory",
"requestMatchers" : { }
},
"response" : {
"status" : 200,
"headers" : {
"Content-Type" : "text/html"
},
"body" : "That is some good Mallory.",
"responseMatchers" : { }
}
} ]
}
### DSL Methods
#### serviceConsumer(String consumer)
This names the service consumer for the pact.
#### hasPactWith(String provider)
This names the service provider for the pact.
#### port(int port)
Sets the port that the mock server will run on. If not supplied, a random port will be used.
#### given(String providerState)
Defines a state that the provider needs to be in for the request to succeed. For more info, see
https://github.com/realestate-com-au/pact/wiki/Provider-states
#### uponReceiving(String requestDescription)
Starts the definition of a of a pact interaction.
#### withAttributes(Map requestData)
Defines the request for the interaction. The request data map can contain the following:
| key | Description | Default Value |
|----------------------------|-------------------------------------------|-----------------------------|
| method | The HTTP method to use | get |
| path | The Path for the request | / |
| query | Query parameters as a Map<String, List> | |
| headers | Map of key-value pairs for the request headers | |
| body | The body of the request. If it is not a string, it will be converted to JSON. Also accepts a PactBodyBuilder. | |
| prettyPrint | Boolean value to control if the body is pretty printed. See note on Pretty Printed Bodies below |
For the path, header attributes and query parameters (version 2.2.2+ for headers, 3.3.7+ for query parameters),
you can use regular expressions to match. You can either provide a regex `Pattern` class or use the `regexp` method
to construct a `RegexpMatcher` (you can use any of the defined matcher methods, see DSL methods below).
If you use a `Pattern`, or the `regexp` method but don't provide a value, a random one will be generated from the
regular expression. This value is used when generating requests.
For example:
```groovy
.withAttributes(path: ~'/transaction/[0-9]+') // This will generate a random path for requests
// or
.withAttributes(path: regexp('/transaction/[0-9]+', '/transaction/1234567890'))
```
#### withBody(Closure closure)
Constructs the body of the request or response by invoking the supplied closure in the context of a PactBodyBuilder.
##### Pretty Printed Bodies [Version 2.2.15+, 3.0.4+]
An optional Map can be supplied to control how the body is generated. The option values are available:
| Option | Description |
|--------|-------------|
| mimeType | The mime type of the body. Defaults to `application/json` |
| prettyPrint | Boolean value controlling whether to pretty-print the body or not. Defaults to true |
If the prettyPrint option is not specified, the bodies will be pretty printed unless the mime type corresponds to one
that requires compact bodies. Currently only `application/x-thrift+json` is classed as requiring a compact body.
For an example of turning off pretty printing:
```groovy
service {
uponReceiving('a request')
withAttributes(method: 'get', path: '/')
withBody(prettyPrint: false) {
name 'harry'
surname 'larry'
}
}
```
#### willRespondWith(Map responseData)
Defines the response for the interaction. The response data map can contain the following:
| key | Description | Default Value |
|----------------------------|-------------------------------------------|-----------------------------|
| status | The HTTP status code to return | 200 |
| headers | Map of key-value pairs for the response headers | |
| body | The body of the response. If it is not a string, it will be converted to JSON. Also accepts a PactBodyBuilder. | |
| prettyPrint | Boolean value to control if the body is pretty printed. See note on Pretty Printed Bodies above |
For the headers (version 2.2.2+), you can use regular expressions to match. You can either provide a regex `Pattern` class or use
the `regexp` method to construct a `RegexpMatcher` (you can use any of the defined matcher methods, see DSL methods below).
If you use a `Pattern`, or the `regexp` method but don't provide a value, a random one will be generated from the
regular expression. This value is used when generating responses.
For example:
```groovy
.willRespondWith(headers: [LOCATION: ~'/transaction/[0-9]+']) // This will generate a random location value
// or
.willRespondWith(headers: [LOCATION: regexp('/transaction/[0-9]+', '/transaction/1234567890')])
```
#### VerificationResult run(Closure closure)
The `run` method starts the mock server, and then executes the provided closure. It then returns the pact verification
result for the pact run. If you require access to the mock server configuration for the URL, it is passed into the
closure, e.g.,
```groovy
VerificationResult result = alice_service.run() { config ->
def client = new RESTClient(config.url())
def alice_response = client.get(path: '/mallory')
}
```
### Body DSL
For building JSON bodies there is a `PactBodyBuilder` that provides as DSL that includes matching with regular expressions
and by types. For a more complete example look at `PactBodyBuilderTest`.
For an example:
```groovy
service {
uponReceiving('a request')
withAttributes(method: 'get', path: '/')
withBody {
name(~/\w+/, 'harry')
surname regexp(~/\w+/, 'larry')
position regexp(~/staff|contractor/, 'staff')
happy(true)
}
}
```
This will return the following body:
```json
{
"name": "harry",
"surname": "larry",
"position": "staff",
"happy": true
}
```
and add the following matchers:
```json
{
"$.body.name": {"regex": "\\w+"},
"$.body.surname": {"regex": "\\w+"},
"$.body.position": {"regex": "staff|contractor"}
}
```
#### DSL Methods
The DSL supports the following matching methods:
* regexp(Pattern re, String value = null), regexp(String regexp, String value = null)
Defines a regular expression matcher. If the value is not provided, a random one will be generated.
* hexValue(String value = null)
Defines a matcher that accepts hexidecimal values. If the value is not provided, a random hexidcimal value will be
generated.
* identifier(def value = null)
Defines a matcher that accepts integer values. If the value is not provided, a random value will be generated.
* ipAddress(String value = null)
Defines a matcher that accepts IP addresses. If the value is not provided, a 127.0.0.1 will be used.
* numeric(Number value = null)
Defines a matcher that accepts any numerical values. If the value is not provided, a random integer will be used.
* integer(def value = null)
Defines a matcher that accepts any integer values. If the value is not provided, a random integer will be used.
* real(def value = null)
Defines a matcher that accepts any real numbers. If the value is not provided, a random double will be used.
* timestamp(String pattern = null, def value = null)
If pattern is not provided the ISO_DATETIME_FORMAT is used ("yyyy-MM-dd'T'HH:mm:ss") . If the value is not provided, the current date and time is used.
* time(String pattern = null, def value = null)
If pattern is not provided the ISO_TIME_FORMAT is used ("'T'HH:mm:ss") . If the value is not provided, the current date and time is used.
* date(String pattern = null, def value = null)
If pattern is not provided the ISO_DATE_FORMAT is used ("yyyy-MM-dd") . If the value is not provided, the current date and time is used.
* uuid(String value = null)
Defines a matcher that accepts UUIDs. A random one will be generated if no value is provided.
#### What if a field matches a matcher name in the DSL?
When using the body DSL, if there is a field that matches a matcher name (e.g. a field named 'date') then you can do the following:
```groovy
withBody {
date = date()
}
```
### Ensuring all items in a list match an example (2.2.0+)
Lots of the time you might not know the number of items that will be in a list, but you want to ensure that the list
has a minimum or maximum size and that each item in the list matches a given example. You can do this with the `eachLike`,
`minLike` and `maxLike` functions.
| function | description |
|----------|-------------|
| `eachLike()` | Ensure that each item in the list matches the provided example |
| `maxLike(integer max)` | Ensure that each item in the list matches the provided example and the list is no bigger than the provided max |
| `minLike(integer min)` | Ensure that each item in the list matches the provided example and the list is no smaller than the provided min |
For example:
```groovy
withBody {
users minLike(1) {
id identifier
name string('Fred')
}
}
```
This will ensure that the user list is never empty and that each user has an identifier that is a number and a name that is a string.
__Version 3.2.4/2.4.6+__ You can specify the number of example items to generate in the array. The default is 1.
```groovy
withBody {
users minLike(1, 3) {
id identifier
name string('Fred')
}
}
```
This will create an example user list with 3 users.
__Version 3.2.13/2.4.14+__ The each like matchers have been updated to work with primitive types.
```groovy
withBody {
permissions eachLike(3, 'GRANT')
}
```
will generate the following JSON
```json
{
"permissions": ["GRANT", "GRANT", "GRANT"]
}
```
and matchers
```json
{
"$.body.permissions": {"match": "type"}
}
```
and now you can even get more fancy
```groovy
withBody {
permissions eachLike(3, regexp(~/\w+/))
permissions2 minLike(2, 3, integer())
permissions3 maxLike(4, 3, ~/\d+/)
}
```
### Matching any key in a map (3.3.1/2.5.0+)
The DSL has been extended for cases where the keys in a map are IDs. For an example of this, see
[#313](https://github.com/DiUS/pact-jvm/issues/131). In this case you can use the `keyLike` method, which takes an
example key as a parameter.
For example:
```groovy
withBody {
example {
one {
keyLike '001', 'value' // key like an id mapped to a value
}
two {
keyLike 'ABC001', regexp('\\w+') // key like an id mapped to a matcher
}
three {
keyLike 'XYZ001', { // key like an id mapped to a closure
id identifier()
}
}
four {
keyLike '001XYZ', eachLike { // key like an id mapped to an array where each item is matched by the following
id identifier() // example
}
}
}
}
```
For an example, have a look at [WildcardPactSpec](src/test/au/com/dius/pact/consumer/groovy/WildcardPactSpec.groovy).
**NOTE:** The `keyLike` method adds a `*` to the matching path, so the matching definition will be applied to all keys
of the map if there is not a more specific matcher defined for a particular key. Having more than one `keyLike` condition
applied to a map will result in only one being applied when the pact is verified (probably the last).
## Changing the directory pact files are written to (2.1.9+)
By default, pact files are written to `target/pacts`, but this can be overwritten with the `pact.rootDir` system property.
This property needs to be set on the test JVM as most build tools will fork a new JVM to run the tests.
For Gradle, add this to your build.gradle:
```groovy
test {
systemProperties['pact.rootDir'] = "$buildDir/pacts"
}
```
# Publishing your pact files to a pact broker
If you use Gradle, you can use the [pact Gradle plugin](https://github.com/DiUS/pact-jvm/tree/master/pact-jvm-provider-gradle#publishing-pact-files-to-a-pact-broker) to publish your pact files.
# Pact Specification V3
Version 3 of the pact specification changes the format of pact files in the following ways:
* Query parameters are stored in a map form and are un-encoded (see [#66](https://github.com/DiUS/pact-jvm/issues/66)
and [#97](https://github.com/DiUS/pact-jvm/issues/97) for information on what this can cause).
* Introduces a new message pact format for testing interactions via a message queue.
## Generating V3 spec pact files (3.1.0+, 2.3.0+)
To have your consumer tests generate V3 format pacts, you can pass an option into the `run` method. For example:
```groovy
VerificationResult result = service.run(specificationVersion: PactSpecVersion.V3) { config ->
def client = new RESTClient(config.url())
def response = client.get(path: '/')
}
```
## Consumer test for a message consumer
For testing a consumer of messages from a message queue, the `PactMessageBuilder` class provides a DSL for defining
your message expectations. It works in much the same way as the `PactBuilder` class for Request-Response interactions,
but will generate a V3 format message pact file.
The following steps demonstrate how to use it.
### Step 1 - define the message expectations
Create a test that uses the `PactMessageBuilder` to define a message expectation, and then call `run`. This will invoke
the given closure with a message for each one defined in the pact.
```groovy
def eventStream = new PactMessageBuilder().call {
serviceConsumer 'messageConsumer'
hasPactWith 'messageProducer'
given 'order with id 10000004 exists'
expectsToReceive 'an order confirmation message'
withMetaData(type: 'OrderConfirmed') // Can define any key-value pairs here
withContent(contentType: 'application/json') {
type 'OrderConfirmed'
audit {
userCode 'messageService'
}
origin 'message-service'
referenceId '10000004-2'
timeSent: '2015-07-22T10:14:28+00:00'
value {
orderId '10000004'
value '10.000000'
fee '10.00'
gst '15.00'
}
}
}
```
### Step 2 - call your message handler with the generated messages
This example tests a message handler that gets messages from a Kafka topic. In this case the Pact message is wrapped
as a Kafka `MessageAndMetadata`.
```groovy
eventStream.run { Message message ->
messageHandler.handleMessage(new MessageAndMetadata('topic', 1,
new kafka.message.Message(message.contentsAsBytes()), 0, null, valueDecoder))
}
```
### Step 3 - validate that the message was handled correctly
```groovy
def order = orderRepository.getOrder('10000004')
assert order.status == 'confirmed'
assert order.value == 10.0
```
### Step 4 - Publish the pact file
If the test was successful, a pact file would have been produced with the message from step 1.
Group: au.com.dius Artifact: pact-jvm-consumer-groovy_2.10
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Artifact pact-jvm-consumer-groovy_2.10
Group au.com.dius
Version 2.4.20
Last update 14. April 2018
Organization not specified
URL https://github.com/DiUS/pact-jvm
License Apache 2
Dependencies amount 4
Dependencies slf4j-api, scala-library, pact-jvm-consumer_2.10, groovy-all,
There are maybe transitive dependencies!
Group au.com.dius
Version 2.4.20
Last update 14. April 2018
Organization not specified
URL https://github.com/DiUS/pact-jvm
License Apache 2
Dependencies amount 4
Dependencies slf4j-api, scala-library, pact-jvm-consumer_2.10, groovy-all,
There are maybe transitive dependencies!
pact-jvm-provider-junit_2.12 from group au.com.dius (version 3.6.15)
# Pact junit runner
## Overview
Library provides ability to play contract tests against a provider service in JUnit fashionable way.
Supports:
- Out-of-the-box convenient ways to load pacts
- Easy way to change assertion strategy
- **org.junit.BeforeClass**, **org.junit.AfterClass** and **org.junit.ClassRule** JUnit annotations, that will be run
once - before/after whole contract test suite.
- **org.junit.Before**, **org.junit.After** and **org.junit.Rule** JUnit annotations, that will be run before/after
each test of an interaction.
- **au.com.dius.pact.provider.junit.State** custom annotation - before each interaction that requires a state change,
all methods annotated by `@State` with appropriate the state listed will be invoked. These methods must either take
no parameters or a single Map parameter.
## Example of HTTP test
```java
@RunWith(PactRunner.class) // Say JUnit to run tests with custom Runner
@Provider("myAwesomeService") // Set up name of tested provider
@PactFolder("pacts") // Point where to find pacts (See also section Pacts source in documentation)
public class ContractTest {
// NOTE: this is just an example of embedded service that listens to requests, you should start here real service
@ClassRule //Rule will be applied once: before/after whole contract test suite
public static final ClientDriverRule embeddedService = new ClientDriverRule(8332);
@BeforeClass //Method will be run once: before whole contract test suite
public static void setUpService() {
//Run DB, create schema
//Run service
//...
}
@Before //Method will be run before each test of interaction
public void before() {
// Rest data
// Mock dependent service responses
// ...
embeddedService.addExpectation(
onRequestTo("/data"), giveEmptyResponse()
);
}
@State("default", "no-data") // Method will be run before testing interactions that require "default" or "no-data" state
public void toDefaultState() {
// Prepare service before interaction that require "default" state
// ...
System.out.println("Now service in default state");
}
@State("with-data") // Method will be run before testing interactions that require "with-data" state
public void toStateWithData(Map data) {
// Prepare service before interaction that require "with-data" state. The provider state data will be passed
// in the data parameter
// ...
System.out.println("Now service in state using data " + data);
}
@TestTarget // Annotation denotes Target that will be used for tests
public final Target target = new HttpTarget(8332); // Out-of-the-box implementation of Target (for more information take a look at Test Target section)
}
```
## Example of AMQP Message test
```java
@RunWith(PactRunner.class) // Say JUnit to run tests with custom Runner
@Provider("myAwesomeService") // Set up name of tested provider
@PactBroker(host="pactbroker", port = "80")
public class ConfirmationKafkaContractTest {
@TestTarget // Annotation denotes Target that will be used for tests
public final Target target = new AmqpTarget(); // Out-of-the-box implementation of Target (for more information take a look at Test Target section)
@BeforeClass //Method will be run once: before whole contract test suite
public static void setUpService() {
//Run DB, create schema
//Run service
//...
}
@Before //Method will be run before each test of interaction
public void before() {
// Message data preparation
// ...
}
@PactVerifyProvider('an order confirmation message')
String verifyMessageForOrder() {
Order order = new Order()
order.setId(10000004)
order.setPrice(BigDecimal.TEN)
order.setUnits(15)
def message = new ConfirmationKafkaMessageBuilder()
.withOrder(order)
.build()
JsonOutput.toJson(message)
}
}
```
## Provider state callback methods
For the provider states in the pact being verified, you can define methods to be invoked to setup the correct state
for each interaction. Just annotate a method with the `au.com.dius.pact.provider.junit.State` annotation and the
method will be invoked before the interaction is verified.
For example:
```java
@State("SomeProviderState") // Must match the state description in the pact file
public void someProviderState() {
// Do what you need to set the correct state
}
```
If there are parameters in the pact file, just add a Map parameter to the method to be able to access those parameters.
```java
@State("SomeProviderState")
public void someProviderState(Map<String, Object> providerStateParameters) {
// Do what you need to set the correct state
}
```
### Provider state teardown methods [3.5.22+]
If you need to tear down your provider state, you can annotate a method with the `@State` annotation with the action
set to `StateChangeAction.TEARDOWN` and it will be invoked after the interaction is verified.
```java
@State("SomeProviderState", action = StateChangeAction.TEARDOWN)
public void someProviderStateCleanup() {
// Do what you need to to teardown the state
}
```
#### Returning values that can be injected (3.6.11+)
You can have values from the provider state callbacks be injected into most places (paths, query parameters, headers,
bodies, etc.). This works by using the V3 spec generators with provider state callbacks that return values. One example
of where this would be useful is API calls that require an ID which would be auto-generated by the database on the
provider side, so there is no way to know what the ID would be beforehand.
There are methods on the consumer DSLs that can provider an expression that contains variables (like '/api/user/${id}'
for the path). The provider state callback can then return a map for values, and the `id` attribute from the map will
be expanded in the expression. For this to work, just make your provider state method return a Map of the values.
### Using multiple classes for the state change methods
If you have a large number of state change methods, you can split things up by moving them to other classes. There are
two ways you can do this:
#### Use interfaces
You can put the state change methods on interfaces and then have your test class implement those interfaces. See [StateAnnotationsOnInterfaceTest](src/test/java/au/com/dius/pact/provider/junit/StateAnnotationsOnInterfaceTest.java)
for an example.
#### Specify the additional classes on the test target
You can provide the additional classes to the test target with the `withStateHandler` or `setStateHandlers` methods. See
[BooksPactProviderTest](pact-jvm-provider-spring/src/test/java/au/com/dius/pact/provider/spring/BooksPactProviderTest.java) for an example.
## Pact source
The Pact runner will automatically collect pacts based on annotations on the test class. For this purpose there are 3
out-of-the-box options (files from a directory, files from a set of URLs or a pact broker) or you can easily add your
own Pact source.
If you need to load a single pact file from the file system, use the `PactUrl` with the URL set to the file path.
**Note:** You can only define one source of pacts per test class.
### Download pacts from a pact-broker
To use pacts from a Pact Broker, annotate the test class with `@PactBroker(host="host.of.pact.broker.com", port = "80")`.
From _version 3.2.2/2.4.3+_ you can also specify the protocol, which defaults to "http".
The pact broker will be queried for all pacts with the same name as the provider annotation.
For example, test all pacts for the "Activity Service" in the pact broker:
```java
@RunWith(PactRunner.class)
@Provider("Activity Service")
@PactBroker(host = "localhost", port = "80")
public class PactJUnitTest {
@TestTarget
public final Target target = new HttpTarget(5050);
}
```
#### _Version 3.2.3/2.4.4+_ - Using Java System properties
The pact broker loader was updated to allow system properties to be used for the hostname, port or protocol. The port
was changed to a string to allow expressions to be set.
To use a system property or environment variable, you can place the property name in `${}` expression de-markers:
```java
@PactBroker(host="${pactbroker.hostname}", port = "80")
```
You can provide a default value by separating the property name with a colon (`:`):
```java
@PactBroker(host="${pactbroker.hostname:localhost}", port = "80")
```
#### _Version 3.5.3+_ - More Java System properties
The default values of the `@PactBroker` annotation now enable variable interpolation.
The following keys may be managed through the environment
* `pactbroker.host`
* `pactbroker.port`
* `pactbroker.protocol`
* `pactbroker.tags` (comma separated)
* `pactbroker.auth.username` (for basic auth)
* `pactbroker.auth.password` (for basic auth)
* `pactbroker.auth.token` (for bearer auth)
* `pactbroker.consumers` (comma separated list to filter pacts by consumer; if not provided, will fetch all pacts for the provider)
#### _Version 3.2.4/2.4.6+_ - Using tags with the pact broker
The pact broker allows different versions to be tagged. To load all the pacts:
```java
@PactBroker(host="pactbroker", port = "80", tags = {"latest", "dev", "prod"})
```
The default value for tags is `latest` which is not actually a tag but instead corresponds to the latest version ignoring the tags. If there are multiple consumers matching the name specified in the provider annotation then the latest pact for each of the consumers is loaded.
For any other value the latest pact tagged with the specified tag is loaded.
Specifying multiple tags is an OR operation. For example if you specify `tags = {"dev", "prod"}` then both the latest pact file tagged with `dev` and the latest pact file taggged with `prod` is loaded.
#### _Version 3.3.4/2.4.19+_ - Using basic auth with the with the pact broker
You can use basic authentication with the `@PactBroker` annotation by setting the `authentication` value to a `@PactBrokerAuth`
annotation. For example:
```java
@PactBroker(host = "${pactbroker.url:localhost}", port = "1234", tags = {"latest", "prod", "dev"},
authentication = @PactBrokerAuth(username = "test", password = "test"))
```
Bearer tokens are also supported. For example:
```java
@PactBroker(host = "${pactbroker.url:localhost}", port = "1234", tags = {"latest", "prod", "dev"},
authentication = @PactBrokerAuth(token = "test"))
```
The `token`, `username` and `password` values also take Java system property expressions.
Preemptive Authentication can be enabled by setting the `pact.pactbroker.httpclient.usePreemptiveAuthentication` Java
system property to `true`.
### Pact Url
To use pacts from urls annotate the test class with
```java
@PactUrl(urls = {"http://build.server/zoo_app-animal_service.json"} )
```
If you need to load a single pact file from the file system, you can use the `PactUrl` with the URL set to the file path.
### Pact folder
To use pacts from a resource folder of the project annotate test class with
```java
@PactFolder("subfolder/in/resource/directory")
```
### Custom pacts source
It's possible to use a custom Pact source. For this, implement interface `au.com.dius.pact.provider.junit.loader.PactLoader`
and annotate the test class with `@PactSource(MyOwnPactLoader.class)`. **Note:** class `MyOwnPactLoader` must have a default empty constructor or a constructor with one argument of class `Class` which at runtime will be the test class so you can get custom annotations of test class.
### Filtering the interactions that are verified [version 3.5.3+]
By default, the pact runner will verify all pacts for the given provider. You can filter the pacts and interactions by
the following methods.
#### Filtering by Consumer
You can run only those pacts for a particular consumer by adding a `@Consumer` annotation to the test class.
For example:
```java
@RunWith(PactRunner.class)
@Provider("Activity Service")
@Consumer("Activity Consumer")
@PactBroker(host = "localhost", port = "80")
public class PactJUnitTest {
@TestTarget
public final Target target = new HttpTarget(5050);
}
```
#### Filtering by Provider State
You can filter the interactions that are executed by adding a `@PactFilter` annotation to your test class. The pact
filter annotation will then only verify interactions that have a matching provider state. You can provide multiple
states to match with.
For example:
```java
@RunWith(PactRunner.class)
@Provider("Activity Service")
@PactBroker(host = "localhost", port = "80")
@PactFilter('Activity 100 exists in the database')
public class PactJUnitTest {
@TestTarget
public final Target target = new HttpTarget(5050);
}
```
You can also use regular expressions with the filter [version 3.5.3+]. For example:
```java
@RunWith(PactRunner.class)
@PactFilter('Activity \\d+ exists in the database')
public class PactJUnitTest {
}
```
### Setting the test to not fail when no pacts are found [version 3.5.3+]
By default the pact runner will fail the verification test if no pact files are found to verify. To change the
failure into a warning, add a `@IgnoreNoPactsToVerify` annotation to your test class.
#### Ignoring IO errors loading pact files [version 3.5.24+]
You can also set the test to ignore any IO and parser exceptions when loading the pact files by setting the
`ignoreIoErrors` attribute on the annotation to `"true"` or setting the JVM system property `pact.verification.ignoreIoErrors`
to `true`.
** WARNING! Do not enable this on your CI server, as this could result in your build passing with no providers
having been verified due to a configuration error. **
## Test target
The field in test class of type `au.com.dius.pact.provider.junit.target.Target` annotated with `au.com.dius.pact.provider.junit.target.TestTarget`
will be used for actual Interaction execution and asserting of contract.
**Note:** there must be exactly 1 such field, otherwise an `InitializationException` will be thrown.
### HttpTarget
`au.com.dius.pact.provider.junit.target.HttpTarget` - out-of-the-box implementation of `au.com.dius.pact.provider.junit.target.Target`
that will play pacts as http request and assert response from service by matching rules from pact.
_Version 3.2.2/2.4.3+_ you can also specify the protocol, defaults to "http".
### AmqpTarget
`au.com.dius.pact.provider.junit.target.AmqpTarget` - out-of-the-box implementation of `au.com.dius.pact.provider.junit.target.Target`
that will play pacts as an AMQP message and assert response from service by matching rules from pact.
**Note for Maven users:** If you use Maven to run your tests, you will have to make sure that the Maven Surefire plugin is at least
version 2.22.1 uses an isolated classpath.
For example, configure it by adding the following to your POM:
```xml
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
<configuration>
<useSystemClassLoader>false</useSystemClassLoader>
</configuration>
</plugin>
```
#### Modifying the requests before they are sent [Version 3.2.3/2.4.5+]
Sometimes you may need to add things to the requests that can't be persisted in a pact file. Examples of these would
be authentication tokens, which have a small life span. The HttpTarget supports request filters by annotating methods
on the test class with `@TargetRequestFilter`. These methods must be public void methods that take a single HttpRequest
parameter.
For example:
```java
@TargetRequestFilter
public void exampleRequestFilter(HttpRequest request) {
request.addHeader("Authorization", "OAUTH hdsagasjhgdjashgdah...");
}
```
__*Important Note:*__ You should only use this feature for things that can not be persisted in the pact file. By modifying
the request, you are potentially modifying the contract from the consumer tests!
#### Turning off URL decoding of the paths in the pact file [version 3.3.3+]
By default the paths loaded from the pact file will be decoded before the request is sent to the provider. To turn this
behaviour off, set the system property `pact.verifier.disableUrlPathDecoding` to `true`.
__*Important Note:*__ If you turn off the url path decoding, you need to ensure that the paths in the pact files are
correctly encoded. The verifier will not be able to make a request with an invalid encoded path.
### Custom Test Target
It's possible to use custom `Target`, for that interface `Target` should be implemented and this class can be used instead of `HttpTarget`.
# Verification Reports [versions 3.2.7/2.4.9+]
The default test behaviour is to display the verification being done to the console, and pass or fail the test via the normal
JUnit mechanism. From versions 3.2.7/2.4.9+, additional reports can be generated from the tests.
## Enabling additional reports via annotations on the test classes
A `@VerificationReports` annotation can be added to any pact test class which will control the verification output. The
annotation takes a list report types and an optional report directory (defaults to "target/pact/reports").
The currently supported report types are `console`, `markdown` and `json`.
For example:
```java
@VerificationReports({"console", "markdown"})
public class MyPactTest {
```
will enable the markdown report in addition to the normal console output. And,
```java
@VerificationReports(value = {"markdown"}, reportDir = "/myreports")
public class MyPactTest {
```
will disable the normal console output and write the markdown reports to "/myreports".
## Enabling additional reports via Java system properties or environment variables
The additional reports can also be enabled with Java System properties or environment variables. The following two
properties have been introduced: `pact.verification.reports` and `pact.verification.reportDir`.
`pact.verification.reports` is the comma separated list of report types to enable (e.g. `console,json,markdown`).
`pact.verification.reportDir` is the directory to write reports to (defaults to "target/pact/reports").
## Additional Reports
The following report types are available in addition to console output (`console`, which is enabled by default):
`markdown`, `json`.
You can also provide a fully qualified classname as report so custom reports are also supported.
This class must implement `au.com.dius.pact.provider.reporters.VerifierReporter` interface in order to be correct custom implementation of a report.
# Publishing verification results to a Pact Broker [version 3.5.4+]
For pacts that are loaded from a Pact Broker, the results of running the verification can be published back to the
broker against the URL for the pact. You will be able to see the result on the Pact Broker home screen. You need to
set the version of the provider that is verified using the `pact.provider.version` system property.
To enable publishing of results, set the property `pact.verifier.publishResults` to `true` [version 3.5.18+].
Group: au.com.dius Artifact: pact-jvm-provider-junit_2.12
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Artifact pact-jvm-provider-junit_2.12
Group au.com.dius
Version 3.6.15
Last update 29. April 2020
Organization not specified
URL https://github.com/DiUS/pact-jvm
License Apache 2
Dependencies amount 10
Dependencies pact-jvm-support, pact-jvm-provider_2.12, fluent-hc, httpclient, junit, commons-lang3, jool, slf4j-api, guava-retrying, mail,
There are maybe transitive dependencies!
Group au.com.dius
Version 3.6.15
Last update 29. April 2020
Organization not specified
URL https://github.com/DiUS/pact-jvm
License Apache 2
Dependencies amount 10
Dependencies pact-jvm-support, pact-jvm-provider_2.12, fluent-hc, httpclient, junit, commons-lang3, jool, slf4j-api, guava-retrying, mail,
There are maybe transitive dependencies!
pact-jvm-consumer-junit_2.12 from group au.com.dius (version 3.6.15)
pact-jvm-consumer-junit
=======================
Provides a DSL and a base test class for use with Junit to build consumer tests.
## Dependency
The library is available on maven central using:
* group-id = `au.com.dius`
* artifact-id = `pact-jvm-consumer-junit_2.12`
* version-id = `3.5.x`
## Usage
### Using the base ConsumerPactTest
To write a pact spec extend ConsumerPactTest. This base class defines the following four methods which must be
overridden in your test class.
* *providerName:* Returns the name of the API provider that Pact will mock
* *consumerName:* Returns the name of the API consumer that we are testing.
* *createFragment:* Returns the PactFragment containing the interactions that the test setup using the
ConsumerPactBuilder DSL
* *runTest:* The actual test run. It receives the URL to the mock server as a parameter.
Here is an example:
```java
import au.com.dius.pact.consumer.dsl.PactDslWithProvider;
import au.com.dius.pact.consumer.exampleclients.ConsumerClient;
import au.com.dius.pact.consumer.ConsumerPactTest;
import au.com.dius.pact.model.PactFragment;
import org.junit.Assert;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import static org.junit.Assert.assertEquals;
public class ExampleJavaConsumerPactTest extends ConsumerPactTest {
@Override
protected RequestResponsePact createFragment(PactDslWithProvider builder) {
Map<String, String> headers = new HashMap<String, String>();
headers.put("testreqheader", "testreqheadervalue");
return builder
.given("test state") // NOTE: Using provider states are optional, you can leave it out
.uponReceiving("ExampleJavaConsumerPactTest test interaction")
.path("/")
.method("GET")
.headers(headers)
.willRespondWith()
.status(200)
.headers(headers)
.body("{\"responsetest\": true, \"name\": \"harry\"}")
.given("test state 2") // NOTE: Using provider states are optional, you can leave it out
.uponReceiving("ExampleJavaConsumerPactTest second test interaction")
.method("OPTIONS")
.headers(headers)
.path("/second")
.body("")
.willRespondWith()
.status(200)
.headers(headers)
.body("")
.toPact();
}
@Override
protected String providerName() {
return "test_provider";
}
@Override
protected String consumerName() {
return "test_consumer";
}
@Override
protected void runTest(MockServer mockServer, PactTestExecutionContext context) throws IOException {
Assert.assertEquals(new ConsumerClient(mockServer.getUrl()).options("/second"), 200);
Map expectedResponse = new HashMap();
expectedResponse.put("responsetest", true);
expectedResponse.put("name", "harry");
assertEquals(new ConsumerClient(mockServer.getUrl()).getAsMap("/", ""), expectedResponse);
assertEquals(new ConsumerClient(mockServer.getUrl()).options("/second"), 200);
}
}
```
### Using the Pact JUnit Rule
Thanks to [@warmuuh](https://github.com/warmuuh) we have a JUnit rule that simplifies running Pact consumer tests. To use it, create a test class
and then add the rule:
#### 1. Add the Pact Rule to your test class to represent your provider.
```java
@Rule
public PactProviderRule mockProvider = new PactProviderRule("test_provider", "localhost", 8080, this);
```
The hostname and port are optional. If left out, it will default to 127.0.0.1 and a random available port. You can get
the URL and port from the pact provider rule.
#### 2. Annotate a method with Pact that returns a pact fragment for the provider and consumer
```java
@Pact(provider="test_provider", consumer="test_consumer")
public RequestResponsePact createPact(PactDslWithProvider builder) {
return builder
.given("test state")
.uponReceiving("ExampleJavaConsumerPactRuleTest test interaction")
.path("/")
.method("GET")
.willRespondWith()
.status(200)
.body("{\"responsetest\": true}")
.toPact();
}
```
##### Versions 3.0.2/2.2.13+
You can leave the provider name out. It will then use the provider name of the first mock provider found. I.e.,
```java
@Pact(consumer="test_consumer") // will default to the provider name from mockProvider
public RequestResponsePact createFragment(PactDslWithProvider builder) {
return builder
.given("test state")
.uponReceiving("ExampleJavaConsumerPactRuleTest test interaction")
.path("/")
.method("GET")
.willRespondWith()
.status(200)
.body("{\"responsetest\": true}")
.toPact();
}
```
#### 3. Annotate your test method with PactVerification to have it run in the context of the mock server setup with the appropriate pact from step 1 and 2
```java
@Test
@PactVerification("test_provider")
public void runTest() {
Map expectedResponse = new HashMap();
expectedResponse.put("responsetest", true);
assertEquals(new ConsumerClient(mockProvider.getUrl()).get("/"), expectedResponse);
}
```
##### Versions 3.0.2/2.2.13+
You can leave the provider name out. It will then use the provider name of the first mock provider found. I.e.,
```java
@Test
@PactVerification
public void runTest() {
// This will run against mockProvider
Map expectedResponse = new HashMap();
expectedResponse.put("responsetest", true);
assertEquals(new ConsumerClient("http://localhost:8080").get("/"), expectedResponse);
}
```
For an example, have a look at [ExampleJavaConsumerPactRuleTest](src/test/java/au/com/dius/pact/consumer/examples/ExampleJavaConsumerPactRuleTest.java)
### Requiring a test with multiple providers
The Pact Rule can be used to test with multiple providers. Just add a rule to the test class for each provider, and
then include all the providers required in the `@PactVerification` annotation. For an example, look at
[PactMultiProviderTest](src/test/java/au/com/dius/pact/consumer/pactproviderrule/PactMultiProviderTest.java).
Note that if more than one provider fails verification for the same test, you will only receive a failure for one of them.
Also, to have multiple tests in the same test class, the providers must be setup with random ports (i.e. don't specify
a hostname and port). Also, if the provider name is left out of any of the annotations, the first one found will be used
(which may not be the first one defined).
### Requiring the mock server to run with HTTPS [versions 3.2.7/2.4.9+]
From versions 3.2.7/2.4.9+ the mock server can be started running with HTTPS using a self-signed certificate instead of HTTP.
To enable this set the `https` parameter to `true`.
E.g.:
```java
@Rule
public PactProviderRule mockTestProvider = new PactProviderRule("test_provider", "localhost", 8443, true,
PactSpecVersion.V2, this); // ^^^^
```
For an example test doing this, see [PactProviderHttpsTest](src/test/java/au/com/dius/pact/consumer/pactproviderrule/PactProviderHttpsTest.java).
**NOTE:** The provider will start handling HTTPS requests using a self-signed certificate. Most HTTP clients will not accept
connections to a self-signed server as the certificate is untrusted. You may need to enable insecure HTTPS with your client
for this test to work. For an example of how to enable insecure HTTPS client connections with Apache Http Client, have a
look at [InsecureHttpsRequest](src/test/java/org/apache/http/client/fluent/InsecureHttpsRequest.java).
### Requiring the mock server to run with HTTPS with a keystore [versions 3.4.1+]
From versions 3.4.1+ the mock server can be started running with HTTPS using a keystore.
To enable this set the `https` parameter to `true`, set the keystore path/file, and the keystore's password.
E.g.:
```java
@Rule
public PactProviderRule mockTestProvider = new PactProviderRule("test_provider", "localhost", 8443, true,
"/path/to/your/keystore.jks", "your-keystore-password", PactSpecVersion.V2, this);
```
For an example test doing this, see [PactProviderHttpsKeystoreTest](src/test/java/au/com/dius/pact/consumer/pactproviderrule/PactProviderHttpsKeystoreTest.java).
### Setting default expected request and response values [versions 3.5.10+]
If you have a lot of tests that may share some values (like headers), you can setup default values that will be applied
to all the expected requests and responses for the tests. To do this, you need to create a method that takes single
parameter of the appropriate type (`PactDslRequestWithoutPath` or `PactDslResponse`) and annotate it with the default
marker annotation (`@DefaultRequestValues` or `@DefaultResponseValues`).
For example:
```java
@DefaultRequestValues
public void defaultRequestValues(PactDslRequestWithoutPath request) {
Map<String, String> headers = new HashMap<String, String>();
headers.put("testreqheader", "testreqheadervalue");
request.headers(headers);
}
@DefaultResponseValues
public void defaultResponseValues(PactDslResponse response) {
Map<String, String> headers = new HashMap<String, String>();
headers.put("testresheader", "testresheadervalue");
response.headers(headers);
}
```
For an example test that uses these, have a look at [PactProviderWithMultipleFragmentsTest](src/test/java/au/com/dius/pact/consumer/pactproviderrule/PactProviderWithMultipleFragmentsTest.java)
### Note on HTTP clients and persistent connections
Some HTTP clients may keep the connection open, based on the live connections settings or if they use a connection cache. This could
cause your tests to fail if the client you are testing lives longer than an individual test, as the mock server will be started
and shutdown for each test. This will result in the HTTP client connection cache having invalid connections. For an example of this where
the there was a failure for every second test, see [Issue #342](https://github.com/DiUS/pact-jvm/issues/342).
### Using the Pact DSL directly
Sometimes it is not convenient to use the ConsumerPactTest as it only allows one test per test class. The DSL can be
used directly in this case.
Example:
```java
import au.com.dius.pact.consumer.ConsumerPactBuilder;
import au.com.dius.pact.consumer.PactVerificationResult;
import au.com.dius.pact.consumer.exampleclients.ProviderClient;
import au.com.dius.pact.model.MockProviderConfig;
import au.com.dius.pact.model.RequestResponsePact;
import org.junit.Test;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import static au.com.dius.pact.consumer.ConsumerPactRunnerKt.runConsumerTest;
import static org.junit.Assert.assertEquals;
/**
* Sometimes it is not convenient to use the ConsumerPactTest as it only allows one test per test class.
* The DSL can be used directly in this case.
*/
public class DirectDSLConsumerPactTest {
@Test
public void testPact() {
RequestResponsePact pact = ConsumerPactBuilder
.consumer("Some Consumer")
.hasPactWith("Some Provider")
.uponReceiving("a request to say Hello")
.path("/hello")
.method("POST")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
.toPact();
MockProviderConfig config = MockProviderConfig.createDefault();
PactVerificationResult result = runConsumerTest(pact, config, (mockServer, context) -> {
Map expectedResponse = new HashMap();
expectedResponse.put("hello", "harry");
try {
assertEquals(new ProviderClient(mockServer.getUrl()).hello("{\"name\": \"harry\"}"),
expectedResponse);
} catch (IOException e) {
throw new RuntimeException(e);
}
});
if (result instanceof PactVerificationResult.Error) {
throw new RuntimeException(((PactVerificationResult.Error)result).getError());
}
assertEquals(PactVerificationResult.Ok.INSTANCE, result);
}
}
```
### The Pact JUnit DSL
The DSL has the following pattern:
```java
.consumer("Some Consumer")
.hasPactWith("Some Provider")
.given("a certain state on the provider")
.uponReceiving("a request for something")
.path("/hello")
.method("POST")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
.uponReceiving("another request for something")
.path("/hello")
.method("POST")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
.
.
.
.toPact()
```
You can define as many interactions as required. Each interaction starts with `uponReceiving` followed by `willRespondWith`.
The test state setup with `given` is a mechanism to describe what the state of the provider should be in before the provider
is verified. It is only recorded in the consumer tests and used by the provider verification tasks.
### Building JSON bodies with PactDslJsonBody DSL
**NOTE:** If you are using Java 8, there is [an updated DSL for consumer tests](../pact-jvm-consumer-java8).
The body method of the ConsumerPactBuilder can accept a PactDslJsonBody, which can construct a JSON body as well as
define regex and type matchers.
For example:
```java
PactDslJsonBody body = new PactDslJsonBody()
.stringType("name")
.booleanType("happy")
.hexValue("hexCode")
.id()
.ipAddress("localAddress")
.numberValue("age", 100)
.timestamp();
```
#### DSL Matching methods
The following matching methods are provided with the DSL. In most cases, they take an optional value parameter which
will be used to generate example values (i.e. when returning a mock response). If no example value is given, a random
one will be generated.
| method | description |
|--------|-------------|
| string, stringValue | Match a string value (using string equality) |
| number, numberValue | Match a number value (using Number.equals)\* |
| booleanValue | Match a boolean value (using equality) |
| stringType | Will match all Strings |
| numberType | Will match all numbers\* |
| integerType | Will match all numbers that are integers (both ints and longs)\* |
| decimalType | Will match all real numbers (floating point and decimal)\* |
| booleanType | Will match all boolean values (true and false) |
| stringMatcher | Will match strings using the provided regular expression |
| timestamp | Will match string containing timestamps. If a timestamp format is not given, will match an ISO timestamp format |
| date | Will match string containing dates. If a date format is not given, will match an ISO date format |
| time | Will match string containing times. If a time format is not given, will match an ISO time format |
| ipAddress | Will match string containing IP4 formatted address. |
| id | Will match all numbers by type |
| hexValue | Will match all hexadecimal encoded strings |
| uuid | Will match strings containing UUIDs |
| includesStr | Will match strings containing the provided string |
| equalsTo | Will match using equals |
| matchUrl | Defines a matcher for URLs, given the base URL path and a sequence of path fragments. The path fragments could be strings or regular expression matchers |
_\* Note:_ JSON only supports double precision floating point values. Depending on the language implementation, they
may parsed as integer, floating point or decimal numbers.
#### Ensuring all items in a list match an example (2.2.0+)
Lots of the time you might not know the number of items that will be in a list, but you want to ensure that the list
has a minimum or maximum size and that each item in the list matches a given example. You can do this with the `arrayLike`,
`minArrayLike` and `maxArrayLike` functions.
| function | description |
|----------|-------------|
| `eachLike` | Ensure that each item in the list matches the provided example |
| `maxArrayLike` | Ensure that each item in the list matches the provided example and the list is no bigger than the provided max |
| `minArrayLike` | Ensure that each item in the list matches the provided example and the list is no smaller than the provided min |
For example:
```java
DslPart body = new PactDslJsonBody()
.minArrayLike("users", 1)
.id()
.stringType("name")
.closeObject()
.closeArray();
```
This will ensure that the users list is never empty and that each user has an identifier that is a number and a name that is a string.
__Version 3.2.4/2.4.6+__ You can specify the number of example items to generate in the array. The default is 1.
```java
DslPart body = new PactDslJsonBody()
.minArrayLike("users", 1, 2)
.id()
.stringType("name")
.closeObject()
.closeArray();
```
This will generate the example body with 2 items in the users list.
#### Root level arrays that match all items (version 2.2.11+)
If the root of the body is an array, you can create PactDslJsonArray classes with the following methods:
| function | description |
|----------|-------------|
| `arrayEachLike` | Ensure that each item in the list matches the provided example |
| `arrayMinLike` | Ensure that each item in the list matches the provided example and the list is no bigger than the provided max |
| `arrayMaxLike` | Ensure that each item in the list matches the provided example and the list is no smaller than the provided min |
For example:
```java
PactDslJsonArray.arrayEachLike()
.date("clearedDate", "mm/dd/yyyy", date)
.stringType("status", "STATUS")
.decimalType("amount", 100.0)
.closeObject()
```
This will then match a body like:
```json
[ {
"clearedDate" : "07/22/2015",
"status" : "C",
"amount" : 15.0
}, {
"clearedDate" : "07/22/2015",
"status" : "C",
"amount" : 15.0
}, {
"clearedDate" : "07/22/2015",
"status" : "C",
"amount" : 15.0
} ]
```
__Version 3.2.4/2.4.6+__ You can specify the number of example items to generate in the array. The default is 1.
#### Matching JSON values at the root (Version 3.2.2/2.4.3+)
For cases where you are expecting basic JSON values (strings, numbers, booleans and null) at the root level of the body
and need to use matchers, you can use the `PactDslJsonRootValue` class. It has all the DSL matching methods for basic
values that you can use.
For example:
```java
.consumer("Some Consumer")
.hasPactWith("Some Provider")
.uponReceiving("a request for a basic JSON value")
.path("/hello")
.willRespondWith()
.status(200)
.body(PactDslJsonRootValue.integerType())
```
#### Matching any key in a map (3.3.1/2.5.0+)
The DSL has been extended for cases where the keys in a map are IDs. For an example of this, see
[#313](https://github.com/DiUS/pact-jvm/issues/313). In this case you can use the `eachKeyLike` method, which takes an
example key as a parameter.
For example:
```java
DslPart body = new PactDslJsonBody()
.object("one")
.eachKeyLike("001", PactDslJsonRootValue.id(12345L)) // key like an id mapped to a matcher
.closeObject()
.object("two")
.eachKeyLike("001-A") // key like an id where the value is matched by the following example
.stringType("description", "Some Description")
.closeObject()
.closeObject()
.object("three")
.eachKeyMappedToAnArrayLike("001") // key like an id mapped to an array where each item is matched by the following example
.id("someId", 23456L)
.closeObject()
.closeArray()
.closeObject();
```
For an example, have a look at [WildcardKeysTest](src/test/java/au/com/dius/pact/consumer/WildcardKeysTest.java).
**NOTE:** The `eachKeyLike` method adds a `*` to the matching path, so the matching definition will be applied to all keys
of the map if there is not a more specific matcher defined for a particular key. Having more than one `eachKeyLike` condition
applied to a map will result in only one being applied when the pact is verified (probably the last).
**Further Note: From version 3.5.22 onwards pacts with wildcards applied to map keys will require the Java system property
"pact.matching.wildcard" set to value "true" when the pact file is verified.**
#### Combining matching rules with AND/OR
Matching rules can be combined with AND/OR. There are two methods available on the DSL for this. For example:
```java
DslPart body = new PactDslJsonBody()
.numberValue("valueA", 100)
.and("valueB","AB", PM.includesStr("A"), PM.includesStr("B")) // Must match both matching rules
.or("valueC", null, PM.date(), PM.nullValue()) // will match either a valid date or a null value
```
The `and` and `or` methods take a variable number of matchers (varargs).
### Matching on paths (version 2.1.5+)
You can use regular expressions to match incoming requests. The DSL has a `matchPath` method for this. You can provide
a real path as a second value to use when generating requests, and if you leave it out it will generate a random one
from the regular expression.
For example:
```java
.given("test state")
.uponReceiving("a test interaction")
.matchPath("/transaction/[0-9]+") // or .matchPath("/transaction/[0-9]+", "/transaction/1234567890")
.method("POST")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
```
### Matching on headers (version 2.2.2+)
You can use regular expressions to match request and response headers. The DSL has a `matchHeader` method for this. You can provide
an example header value to use when generating requests and responses, and if you leave it out it will generate a random one
from the regular expression.
For example:
```java
.given("test state")
.uponReceiving("a test interaction")
.path("/hello")
.method("POST")
.matchHeader("testreqheader", "test.*value")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
.matchHeader("Location", ".*/hello/[0-9]+", "/hello/1234")
```
### Matching on query parameters (version 3.3.7+)
You can use regular expressions to match request query parameters. The DSL has a `matchQuery` method for this. You can provide
an example value to use when generating requests, and if you leave it out it will generate a random one
from the regular expression.
For example:
```java
.given("test state")
.uponReceiving("a test interaction")
.path("/hello")
.method("POST")
.matchQuery("a", "\\d+", "100")
.matchQuery("b", "[A-Z]", "X")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
```
## Debugging pact failures
When the test runs, Pact will start a mock provider that will listen for requests and match them against the expectations
you setup in `createFragment`. If the request does not match, it will return a 500 error response.
Each request received and the generated response is logged using [SLF4J](http://www.slf4j.org/). Just enable debug level
logging for au.com.dius.pact.consumer.UnfilteredMockProvider. Most failures tend to be mismatched headers or bodies.
## Changing the directory pact files are written to (2.1.9+)
By default, pact files are written to `target/pacts` (or `build/pacts` if you use Gradle), but this can be overwritten with the `pact.rootDir` system property.
This property needs to be set on the test JVM as most build tools will fork a new JVM to run the tests.
For Gradle, add this to your build.gradle:
```groovy
test {
systemProperties['pact.rootDir'] = "$buildDir/custom-pacts-directory"
}
```
For maven, use the systemPropertyVariables configuration:
```xml
<project>
[...]
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.18</version>
<configuration>
<systemPropertyVariables>
<pact.rootDir>some/other/directory</pact.rootDir>
<buildDirectory>${project.build.directory}</buildDirectory>
[...]
</systemPropertyVariables>
</configuration>
</plugin>
</plugins>
</build>
[...]
</project>
```
For SBT:
```scala
fork in Test := true,
javaOptions in Test := Seq("-Dpact.rootDir=some/other/directory")
```
### Using `@PactFolder` annotation [3.6.2+]
You can override the directory the pacts are written in a test by adding the `@PactFolder` annotation to the test
class.
## Forcing pact files to be overwritten (3.6.5+)
By default, when the pact file is written, it will be merged with any existing pact file. To force the file to be
overwritten, set the Java system property `pact.writer.overwrite` to `true`.
# Publishing your pact files to a pact broker
If you use Gradle, you can use the [pact Gradle plugin](https://github.com/DiUS/pact-jvm/tree/master/pact-jvm-provider-gradle#publishing-pact-files-to-a-pact-broker) to publish your pact files.
# Pact Specification V3
Version 3 of the pact specification changes the format of pact files in the following ways:
* Query parameters are stored in a map form and are un-encoded (see [#66](https://github.com/DiUS/pact-jvm/issues/66)
and [#97](https://github.com/DiUS/pact-jvm/issues/97) for information on what this can cause).
* Introduces a new message pact format for testing interactions via a message queue.
* Multiple provider states can be defined with data parameters.
## Generating V2 spec pact files (3.1.0+, 2.3.0+)
To have your consumer tests generate V2 format pacts, you can set the specification version to V2. If you're using the
`ConsumerPactTest` base class, you can override the `getSpecificationVersion` method. For example:
```java
@Override
protected PactSpecVersion getSpecificationVersion() {
return PactSpecVersion.V2;
}
```
If you are using the `PactProviderRule`, you can pass the version into the constructor for the rule.
```java
@Rule
public PactProviderRule mockTestProvider = new PactProviderRule("test_provider", PactSpecVersion.V2, this);
```
## Consumer test for a message consumer
For testing a consumer of messages from a message queue, the `MessagePactProviderRule` rule class works in much the
same way as the `PactProviderRule` class for Request-Response interactions, but will generate a V3 format message pact file.
For an example, look at [ExampleMessageConsumerTest](https://github.com/DiUS/pact-jvm/blob/master/pact-jvm-consumer-junit%2Fsrc%2Ftest%2Fjava%2Fau%2Fcom%2Fdius%2Fpact%2Fconsumer%2Fv3%2FExampleMessageConsumerTest.java)
# Having values injected from provider state callbacks (3.6.11+)
You can have values from the provider state callbacks be injected into most places (paths, query parameters, headers,
bodies, etc.). This works by using the V3 spec generators with provider state callbacks that return values. One example
of where this would be useful is API calls that require an ID which would be auto-generated by the database on the
provider side, so there is no way to know what the ID would be beforehand.
The following DSL methods all you to set an expression that will be parsed with the values returned from the provider states:
For JSON bodies, use `valueFromProviderState`.<br/>
For headers, use `headerFromProviderState`.<br/>
For query parameters, use `queryParameterFromProviderState`.<br/>
For paths, use `pathFromProviderState`.
For example, assume that an API call is made to get the details of a user by ID. A provider state can be defined that
specifies that the user must be exist, but the ID will be created when the user is created. So we can then define an
expression for the path where the ID will be replaced with the value returned from the provider state callback.
```java
.pathFromProviderState("/api/users/${id}", "/api/users/100")
```
You can also just use the key instead of an expression:
```java
.valueFromProviderState('userId', 'userId', 100) // will look value using userId as the key
```
Group: au.com.dius Artifact: pact-jvm-consumer-junit_2.12
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Artifact pact-jvm-consumer-junit_2.12
Group au.com.dius
Version 3.6.15
Last update 29. April 2020
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URL https://github.com/DiUS/pact-jvm
License Apache 2
Dependencies amount 5
Dependencies pact-jvm-consumer_2.12, junit, json, commons-lang3, guava,
There are maybe transitive dependencies!
Group au.com.dius
Version 3.6.15
Last update 29. April 2020
Organization not specified
URL https://github.com/DiUS/pact-jvm
License Apache 2
Dependencies amount 5
Dependencies pact-jvm-consumer_2.12, junit, json, commons-lang3, guava,
There are maybe transitive dependencies!
pact-jvm-consumer-groovy_2.12 from group au.com.dius (version 3.6.15)
pact-jvm-consumer-groovy
=========================
Groovy DSL for Pact JVM
## Dependency
The library is available on maven central using:
* group-id = `au.com.dius`
* artifact-id = `pact-jvm-consumer-groovy_2.11`
* version-id = `3.5.x`
## Usage
Add the `pact-jvm-consumer-groovy` library to your test class path. This provides a `PactBuilder` class for you to use
to define your pacts. For a full example, have a look at the example JUnit `ExampleGroovyConsumerPactTest`.
If you are using gradle for your build, add it to your `build.gradle`:
dependencies {
testCompile 'au.com.dius:pact-jvm-consumer-groovy_2.11:3.5.0'
}
Then create an instance of the `PactBuilder` in your test.
```groovy
import au.com.dius.pact.consumer.PactVerificationResult
import au.com.dius.pact.consumer.groovy.PactBuilder
import groovyx.net.http.RESTClient
import org.junit.Test
class AliceServiceConsumerPactTest {
@Test
void "A service consumer side of a pact goes a little something like this"() {
def alice_service = new PactBuilder() // Create a new PactBuilder
alice_service {
serviceConsumer "Consumer" // Define the service consumer by name
hasPactWith "Alice Service" // Define the service provider that it has a pact with
port 1234 // The port number for the service. It is optional, leave it out to
// to use a random one
given('there is some good mallory') // defines a provider state. It is optional.
uponReceiving('a retrieve Mallory request') // upon_receiving starts a new interaction
withAttributes(method: 'get', path: '/mallory') // define the request, a GET request to '/mallory'
willRespondWith( // define the response we want returned
status: 200,
headers: ['Content-Type': 'text/html'],
body: '"That is some good Mallory."'
)
}
// Execute the run method to have the mock server run.
// It takes a closure to execute your requests and returns a PactVerificationResult.
PactVerificationResult result = alice_service.runTest {
def client = new RESTClient('http://localhost:1234/')
def alice_response = client.get(path: '/mallory')
assert alice_response.status == 200
assert alice_response.contentType == 'text/html'
def data = alice_response.data.text()
assert data == '"That is some good Mallory."'
}
assert result == PactVerificationResult.Ok.INSTANCE // This means it is all good
}
}
```
After running this test, the following pact file is produced:
{
"provider" : {
"name" : "Alice Service"
},
"consumer" : {
"name" : "Consumer"
},
"interactions" : [ {
"provider_state" : "there is some good mallory",
"description" : "a retrieve Mallory request",
"request" : {
"method" : "get",
"path" : "/mallory",
"requestMatchers" : { }
},
"response" : {
"status" : 200,
"headers" : {
"Content-Type" : "text/html"
},
"body" : "That is some good Mallory.",
"responseMatchers" : { }
}
} ]
}
### DSL Methods
#### serviceConsumer(String consumer)
This names the service consumer for the pact.
#### hasPactWith(String provider)
This names the service provider for the pact.
#### port(int port)
Sets the port that the mock server will run on. If not supplied, a random port will be used.
#### given(String providerState)
Defines a state that the provider needs to be in for the request to succeed. For more info, see
https://github.com/realestate-com-au/pact/wiki/Provider-states. Can be called multiple times.
#### given(String providerState, Map params)
Defines a state that the provider needs to be in for the request to succeed. For more info, see
https://github.com/realestate-com-au/pact/wiki/Provider-states. Can be called multiple times, and the params
map can contain the data required for the state.
#### uponReceiving(String requestDescription)
Starts the definition of a of a pact interaction.
#### withAttributes(Map requestData)
Defines the request for the interaction. The request data map can contain the following:
| key | Description | Default Value |
|----------------------------|-------------------------------------------|-----------------------------|
| method | The HTTP method to use | get |
| path | The Path for the request | / |
| query | Query parameters as a Map<String, List> | |
| headers | Map of key-value pairs for the request headers | |
| body | The body of the request. If it is not a string, it will be converted to JSON. Also accepts a PactBodyBuilder. | |
| prettyPrint | Boolean value to control if the body is pretty printed. See note on Pretty Printed Bodies below |
For the path, header attributes and query parameters (version 2.2.2+ for headers, 3.3.7+ for query parameters),
you can use regular expressions to match. You can either provide a regex `Pattern` class or use the `regexp` method
to construct a `RegexpMatcher` (you can use any of the defined matcher methods, see DSL methods below).
If you use a `Pattern`, or the `regexp` method but don't provide a value, a random one will be generated from the
regular expression. This value is used when generating requests.
For example:
```groovy
.withAttributes(path: ~'/transaction/[0-9]+') // This will generate a random path for requests
// or
.withAttributes(path: regexp('/transaction/[0-9]+', '/transaction/1234567890'))
```
#### withBody(Closure closure)
Constructs the body of the request or response by invoking the supplied closure in the context of a PactBodyBuilder.
##### Pretty Printed Bodies [Version 2.2.15+, 3.0.4+]
An optional Map can be supplied to control how the body is generated. The option values are available:
| Option | Description |
|--------|-------------|
| mimeType | The mime type of the body. Defaults to `application/json` |
| prettyPrint | Boolean value controlling whether to pretty-print the body or not. Defaults to true |
If the prettyPrint option is not specified, the bodies will be pretty printed unless the mime type corresponds to one
that requires compact bodies. Currently only `application/x-thrift+json` is classed as requiring a compact body.
For an example of turning off pretty printing:
```groovy
service {
uponReceiving('a request')
withAttributes(method: 'get', path: '/')
withBody(prettyPrint: false) {
name 'harry'
surname 'larry'
}
}
```
#### willRespondWith(Map responseData)
Defines the response for the interaction. The response data map can contain the following:
| key | Description | Default Value |
|----------------------------|-------------------------------------------|-----------------------------|
| status | The HTTP status code to return | 200 |
| headers | Map of key-value pairs for the response headers | |
| body | The body of the response. If it is not a string, it will be converted to JSON. Also accepts a PactBodyBuilder. | |
| prettyPrint | Boolean value to control if the body is pretty printed. See note on Pretty Printed Bodies above |
For the headers (version 2.2.2+), you can use regular expressions to match. You can either provide a regex `Pattern` class or use
the `regexp` method to construct a `RegexpMatcher` (you can use any of the defined matcher methods, see DSL methods below).
If you use a `Pattern`, or the `regexp` method but don't provide a value, a random one will be generated from the
regular expression. This value is used when generating responses.
For example:
```groovy
.willRespondWith(headers: [LOCATION: ~'/transaction/[0-9]+']) // This will generate a random location value
// or
.willRespondWith(headers: [LOCATION: regexp('/transaction/[0-9]+', '/transaction/1234567890')])
```
#### PactVerificationResult runTest(Closure closure)
The `runTest` method starts the mock server, and then executes the provided closure. It then returns the pact verification
result for the pact run. If you require access to the mock server configuration for the URL, it is passed into the
closure, e.g.,
```groovy
PactVerificationResult result = alice_service.runTest() { mockServer ->
def client = new RESTClient(mockServer.url)
def alice_response = client.get(path: '/mallory')
}
```
### Note on HTTP clients and persistent connections
Some HTTP clients may keep the connection open, based on the live connections settings or if they use a connection cache. This could
cause your tests to fail if the client you are testing lives longer than an individual test, as the mock server will be started
and shutdown for each test. This will result in the HTTP client connection cache having invalid connections. For an example of this where
the there was a failure for every second test, see [Issue #342](https://github.com/DiUS/pact-jvm/issues/342).
### Body DSL
For building JSON bodies there is a `PactBodyBuilder` that provides as DSL that includes matching with regular expressions
and by types. For a more complete example look at `PactBodyBuilderTest`.
For an example:
```groovy
service {
uponReceiving('a request')
withAttributes(method: 'get', path: '/')
withBody {
name(~/\w+/, 'harry')
surname regexp(~/\w+/, 'larry')
position regexp(~/staff|contractor/, 'staff')
happy(true)
}
}
```
This will return the following body:
```json
{
"name": "harry",
"surname": "larry",
"position": "staff",
"happy": true
}
```
and add the following matchers:
```json
{
"$.body.name": {"regex": "\\w+"},
"$.body.surname": {"regex": "\\w+"},
"$.body.position": {"regex": "staff|contractor"}
}
```
#### DSL Methods
The DSL supports the following matching methods:
* regexp(Pattern re, String value = null), regexp(String regexp, String value = null)
Defines a regular expression matcher. If the value is not provided, a random one will be generated.
* hexValue(String value = null)
Defines a matcher that accepts hexidecimal values. If the value is not provided, a random hexidcimal value will be
generated.
* identifier(def value = null)
Defines a matcher that accepts integer values. If the value is not provided, a random value will be generated.
* ipAddress(String value = null)
Defines a matcher that accepts IP addresses. If the value is not provided, a 127.0.0.1 will be used.
* numeric(Number value = null)
Defines a matcher that accepts any numerical values. If the value is not provided, a random integer will be used.
* integer(def value = null)
Defines a matcher that accepts any integer values. If the value is not provided, a random integer will be used.
* decimal(def value = null)
Defines a matcher that accepts any decimal numbers. If the value is not provided, a random decimal will be used.
* timestamp(String pattern = null, def value = null)
If pattern is not provided the ISO_DATETIME_FORMAT is used ("yyyy-MM-dd'T'HH:mm:ss") . If the value is not provided, the current date and time is used.
* time(String pattern = null, def value = null)
If pattern is not provided the ISO_TIME_FORMAT is used ("'T'HH:mm:ss") . If the value is not provided, the current date and time is used.
* date(String pattern = null, def value = null)
If pattern is not provided the ISO_DATE_FORMAT is used ("yyyy-MM-dd") . If the value is not provided, the current date and time is used.
* uuid(String value = null)
Defines a matcher that accepts UUIDs. A random one will be generated if no value is provided.
* equalTo(def value)
Defines an equality matcher that always matches the provided value using `equals`. This is useful for resetting cascading
type matchers.
* includesStr(def value)
Defines a matcher that accepts any value where its string form includes the provided string.
* nullValue()
Defines a matcher that accepts only null values.
* url(String basePath, Object... pathFragments)
Defines a matcher for URLs, given the base URL path and a sequence of path fragments. The path fragments could be
strings or regular expression matchers. For example:
```groovy
url('http://localhost:8080', 'pacticipants', regexp('[^\\/]+', 'Activity%20Service'))
```
Defines a matcher that accepts only null values.
#### What if a field matches a matcher name in the DSL?
When using the body DSL, if there is a field that matches a matcher name (e.g. a field named 'date') then you can do the following:
```groovy
withBody {
date = date()
}
```
### Ensuring all items in a list match an example (2.2.0+)
Lots of the time you might not know the number of items that will be in a list, but you want to ensure that the list
has a minimum or maximum size and that each item in the list matches a given example. You can do this with the `eachLike`,
`minLike` and `maxLike` functions.
| function | description |
|----------|-------------|
| `eachLike()` | Ensure that each item in the list matches the provided example |
| `maxLike(integer max)` | Ensure that each item in the list matches the provided example and the list is no bigger than the provided max |
| `minLike(integer min)` | Ensure that each item in the list matches the provided example and the list is no smaller than the provided min |
For example:
```groovy
withBody {
users minLike(1) {
id identifier
name string('Fred')
}
}
```
This will ensure that the user list is never empty and that each user has an identifier that is a number and a name that is a string.
__Version 3.2.4/2.4.6+__ You can specify the number of example items to generate in the array. The default is 1.
```groovy
withBody {
users minLike(1, 3) {
id identifier
name string('Fred')
}
}
```
This will create an example user list with 3 users.
__Version 3.2.13/2.4.14+__ The each like matchers have been updated to work with primitive types.
```groovy
withBody {
permissions eachLike(3, 'GRANT')
}
```
will generate the following JSON
```json
{
"permissions": ["GRANT", "GRANT", "GRANT"]
}
```
and matchers
```json
{
"$.body.permissions": {"match": "type"}
}
```
and now you can even get more fancy
```groovy
withBody {
permissions eachLike(3, regexp(~/\w+/))
permissions2 minLike(2, 3, integer())
permissions3 maxLike(4, 3, ~/\d+/)
}
```
You can also match arrays at the root level, for instance,
```groovy
withBody PactBodyBuilder.eachLike(regexp(~/\w+/))
```
or if you have arrays of arrays
```groovy
withBody PactBodyBuilder.eachLike([ regexp('[0-9a-f]{8}', 'e8cda07e'), regexp(~/\w+/, 'sony') ])
```
__Version 3.5.9+__ A `eachArrayLike` method has been added to handle matching of arrays of arrays.
```groovy
{
answers minLike(1) {
questionId string("books")
answer eachArrayLike {
questionId string("title")
answer string("BBBB")
}
}
```
This will generate an array of arrays for the `answer` attribute.
### Matching any key in a map (3.3.1/2.5.0+)
The DSL has been extended for cases where the keys in a map are IDs. For an example of this, see
[#313](https://github.com/DiUS/pact-jvm/issues/313). In this case you can use the `keyLike` method, which takes an
example key as a parameter.
For example:
```groovy
withBody {
example {
one {
keyLike '001', 'value' // key like an id mapped to a value
}
two {
keyLike 'ABC001', regexp('\\w+') // key like an id mapped to a matcher
}
three {
keyLike 'XYZ001', { // key like an id mapped to a closure
id identifier()
}
}
four {
keyLike '001XYZ', eachLike { // key like an id mapped to an array where each item is matched by the following
id identifier() // example
}
}
}
}
```
For an example, have a look at [WildcardPactSpec](src/test/au/com/dius/pact/consumer/groovy/WildcardPactSpec.groovy).
**NOTE:** The `keyLike` method adds a `*` to the matching path, so the matching definition will be applied to all keys
of the map if there is not a more specific matcher defined for a particular key. Having more than one `keyLike` condition
applied to a map will result in only one being applied when the pact is verified (probably the last).
**Further Note: From version 3.5.22 onwards pacts with wildcards applied to map keys will require the Java system property
"pact.matching.wildcard" set to value "true" when the pact file is verified.**
### Matching with an OR (3.5.0+)
The V3 spec allows multiple matchers to be combined using either AND or OR for a value. The main use of this would be to
either be able to match a value or a null, or to combine different matchers.
For example:
```groovy
withBody {
valueA and('AB', includeStr('A'), includeStr('B')) // valueA must include both A and B
valueB or('100', regex(~/\d+/), nullValue()) // valueB must either match a regular expression or be null
valueC or('12345678', regex(~/\d{8}/), regex(~/X\d{13}/)) // valueC must match either 8 or X followed by 13 digits
}
```
## Changing the directory pact files are written to (2.1.9+)
By default, pact files are written to `target/pacts` (or `build/pacts` if you use Gradle), but this can be overwritten with the `pact.rootDir` system property.
This property needs to be set on the test JVM as most build tools will fork a new JVM to run the tests.
For Gradle, add this to your build.gradle:
```groovy
test {
systemProperties['pact.rootDir'] = "$buildDir/custom-pacts-directory"
}
```
## Forcing pact files to be overwritten (3.6.5+)
By default, when the pact file is written, it will be merged with any existing pact file. To force the file to be
overwritten, set the Java system property `pact.writer.overwrite` to `true`.
# Publishing your pact files to a pact broker
If you use Gradle, you can use the [pact Gradle plugin](https://github.com/DiUS/pact-jvm/tree/master/provider/pact-jvm-provider-gradle#publishing-pact-files-to-a-pact-broker) to publish your pact files.
# Pact Specification V3
Version 3 of the pact specification changes the format of pact files in the following ways:
* Query parameters are stored in a map form and are un-encoded (see [#66](https://github.com/DiUS/pact-jvm/issues/66)
and [#97](https://github.com/DiUS/pact-jvm/issues/97) for information on what this can cause).
* Introduces a new message pact format for testing interactions via a message queue.
* Multiple provider states can be defined with data parameters.
## Generating V3 spec pact files (3.1.0+, 2.3.0+)
To have your consumer tests generate V3 format pacts, you can pass an option into the `runTest` method. For example:
```groovy
PactVerificationResult result = service.runTest(specificationVersion: PactSpecVersion.V3) { config ->
def client = new RESTClient(config.url)
def response = client.get(path: '/')
}
```
## Consumer test for a message consumer
For testing a consumer of messages from a message queue, the `PactMessageBuilder` class provides a DSL for defining
your message expectations. It works in much the same way as the `PactBuilder` class for Request-Response interactions,
but will generate a V3 format message pact file.
The following steps demonstrate how to use it.
### Step 1 - define the message expectations
Create a test that uses the `PactMessageBuilder` to define a message expectation, and then call `run`. This will invoke
the given closure with a message for each one defined in the pact.
```groovy
def eventStream = new PactMessageBuilder().call {
serviceConsumer 'messageConsumer'
hasPactWith 'messageProducer'
given 'order with id 10000004 exists'
expectsToReceive 'an order confirmation message'
withMetaData(type: 'OrderConfirmed') // Can define any key-value pairs here
withContent(contentType: 'application/json') {
type 'OrderConfirmed'
audit {
userCode 'messageService'
}
origin 'message-service'
referenceId '10000004-2'
timeSent: '2015-07-22T10:14:28+00:00'
value {
orderId '10000004'
value '10.000000'
fee '10.00'
gst '15.00'
}
}
}
```
### Step 2 - call your message handler with the generated messages
This example tests a message handler that gets messages from a Kafka topic. In this case the Pact message is wrapped
as a Kafka `MessageAndMetadata`.
```groovy
eventStream.run { Message message ->
messageHandler.handleMessage(new MessageAndMetadata('topic', 1,
new kafka.message.Message(message.contentsAsBytes()), 0, null, valueDecoder))
}
```
### Step 3 - validate that the message was handled correctly
```groovy
def order = orderRepository.getOrder('10000004')
assert order.status == 'confirmed'
assert order.value == 10.0
```
### Step 4 - Publish the pact file
If the test was successful, a pact file would have been produced with the message from step 1.
# Having values injected from provider state callbacks (3.6.11+)
You can have values from the provider state callbacks be injected into most places (paths, query parameters, headers,
bodies, etc.). This works by using the V3 spec generators with provider state callbacks that return values. One example
of where this would be useful is API calls that require an ID which would be auto-generated by the database on the
provider side, so there is no way to know what the ID would be beforehand.
The DSL method `fromProviderState` allows you to set an expression that will be parsed with the values returned from the provider states.
For the body, you can use the key value instead of an expression.
For example, assume that an API call is made to get the details of a user by ID. A provider state can be defined that
specifies that the user must be exist, but the ID will be created when the user is created. So we can then define an
expression for the path where the ID will be replaced with the value returned from the provider state callback.
```groovy
service {
given('User harry exists')
uponReceiving('a request for user harry')
withAttributes(method: 'get', path: fromProviderState('/api/user/${id}', '/api/user/100'))
withBody {
name(fromProviderState('userName', 'harry')) // looks up the value using the userName key
}
}
```
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Artifact pact-jvm-consumer-groovy_2.12
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Dependencies pact-jvm-consumer_2.12,
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Last update 29. April 2020
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URL https://github.com/DiUS/pact-jvm
License Apache 2
Dependencies amount 1
Dependencies pact-jvm-consumer_2.12,
There are maybe transitive dependencies!
pact-jvm-provider-junit from group au.com.dius (version 4.0.10)
# Pact junit runner
## Overview
Library provides ability to play contract tests against a provider service in JUnit fashionable way.
Supports:
- Out-of-the-box convenient ways to load pacts
- Easy way to change assertion strategy
- **org.junit.BeforeClass**, **org.junit.AfterClass** and **org.junit.ClassRule** JUnit annotations, that will be run
once - before/after whole contract test suite.
- **org.junit.Before**, **org.junit.After** and **org.junit.Rule** JUnit annotations, that will be run before/after
each test of an interaction.
- **au.com.dius.pact.provider.junit.State** custom annotation - before each interaction that requires a state change,
all methods annotated by `@State` with appropriate the state listed will be invoked. These methods must either take
no parameters or a single Map parameter.
## Example of HTTP test
```java
@RunWith(PactRunner.class) // Say JUnit to run tests with custom Runner
@Provider("myAwesomeService") // Set up name of tested provider
@PactFolder("pacts") // Point where to find pacts (See also section Pacts source in documentation)
public class ContractTest {
// NOTE: this is just an example of embedded service that listens to requests, you should start here real service
@ClassRule //Rule will be applied once: before/after whole contract test suite
public static final ClientDriverRule embeddedService = new ClientDriverRule(8332);
@BeforeClass //Method will be run once: before whole contract test suite
public static void setUpService() {
//Run DB, create schema
//Run service
//...
}
@Before //Method will be run before each test of interaction
public void before() {
// Rest data
// Mock dependent service responses
// ...
embeddedService.addExpectation(
onRequestTo("/data"), giveEmptyResponse()
);
}
@State("default", "no-data") // Method will be run before testing interactions that require "default" or "no-data" state
public void toDefaultState() {
// Prepare service before interaction that require "default" state
// ...
System.out.println("Now service in default state");
}
@State("with-data") // Method will be run before testing interactions that require "with-data" state
public void toStateWithData(Map data) {
// Prepare service before interaction that require "with-data" state. The provider state data will be passed
// in the data parameter
// ...
System.out.println("Now service in state using data " + data);
}
@TestTarget // Annotation denotes Target that will be used for tests
public final Target target = new HttpTarget(8332); // Out-of-the-box implementation of Target (for more information take a look at Test Target section)
}
```
## Example of AMQP Message test
```java
@RunWith(PactRunner.class) // Say JUnit to run tests with custom Runner
@Provider("myAwesomeService") // Set up name of tested provider
@PactBroker(host="pactbroker", port = "80")
public class ConfirmationKafkaContractTest {
@TestTarget // Annotation denotes Target that will be used for tests
public final Target target = new AmqpTarget(); // Out-of-the-box implementation of Target (for more information take a look at Test Target section)
@BeforeClass //Method will be run once: before whole contract test suite
public static void setUpService() {
//Run DB, create schema
//Run service
//...
}
@Before //Method will be run before each test of interaction
public void before() {
// Message data preparation
// ...
}
@PactVerifyProvider('an order confirmation message')
String verifyMessageForOrder() {
Order order = new Order()
order.setId(10000004)
order.setPrice(BigDecimal.TEN)
order.setUnits(15)
def message = new ConfirmationKafkaMessageBuilder()
.withOrder(order)
.build()
JsonOutput.toJson(message)
}
}
```
## Provider state callback methods
For the provider states in the pact being verified, you can define methods to be invoked to setup the correct state
for each interaction. Just annotate a method with the `au.com.dius.pact.provider.junit.State` annotation and the
method will be invoked before the interaction is verified.
For example:
```java
@State("SomeProviderState") // Must match the state description in the pact file
public void someProviderState() {
// Do what you need to set the correct state
}
```
If there are parameters in the pact file, just add a Map parameter to the method to be able to access those parameters.
```java
@State("SomeProviderState")
public void someProviderState(Map<String, Object> providerStateParameters) {
// Do what you need to set the correct state
}
```
### Provider state teardown methods
If you need to tear down your provider state, you can annotate a method with the `@State` annotation with the action
set to `StateChangeAction.TEARDOWN` and it will be invoked after the interaction is verified.
```java
@State("SomeProviderState", action = StateChangeAction.TEARDOWN)
public void someProviderStateCleanup() {
// Do what you need to to teardown the state
}
```
#### Returning values that can be injected
You can have values from the provider state callbacks be injected into most places (paths, query parameters, headers,
bodies, etc.). This works by using the V3 spec generators with provider state callbacks that return values. One example
of where this would be useful is API calls that require an ID which would be auto-generated by the database on the
provider side, so there is no way to know what the ID would be beforehand.
There are methods on the consumer DSLs that can provider an expression that contains variables (like '/api/user/${id}'
for the path). The provider state callback can then return a map for values, and the `id` attribute from the map will
be expanded in the expression. For this to work, just make your provider state method return a Map of the values.
### Using multiple classes for the state change methods
If you have a large number of state change methods, you can split things up by moving them to other classes. There are
two ways you can do this:
#### Use interfaces
You can put the state change methods on interfaces and then have your test class implement those interfaces. See [StateAnnotationsOnInterfaceTest](src/test/java/au/com/dius/pact/provider/junit/StateAnnotationsOnInterfaceTest.java)
for an example.
#### Specify the additional classes on the test target
You can provide the additional classes to the test target with the `withStateHandler` or `setStateHandlers` methods. See
[BooksPactProviderTest](pact-jvm-provider-spring/src/test/java/au/com/dius/pact/provider/spring/BooksPactProviderTest.java) for an example.
## Pact source
The Pact runner will automatically collect pacts based on annotations on the test class. For this purpose there are 3
out-of-the-box options (files from a directory, files from a set of URLs or a pact broker) or you can easily add your
own Pact source.
If you need to load a single pact file from the file system, use the `PactUrl` with the URL set to the file path.
**Note:** You can only define one source of pacts per test class.
### Download pacts from a pact-broker
To use pacts from a Pact Broker, annotate the test class with `@PactBroker(host="host.of.pact.broker.com", port = "80")`.
You can also specify the protocol, which defaults to "http".
The pact broker will be queried for all pacts with the same name as the provider annotation.
For example, test all pacts for the "Activity Service" in the pact broker:
```java
@RunWith(PactRunner.class)
@Provider("Activity Service")
@PactBroker(host = "localhost", port = "80")
public class PactJUnitTest {
@TestTarget
public final Target target = new HttpTarget(5050);
}
```
#### Using Java System properties
The pact broker loader was updated to allow system properties to be used for the hostname, port or protocol. The port
was changed to a string to allow expressions to be set.
To use a system property or environment variable, you can place the property name in `${}` expression de-markers:
```java
@PactBroker(host="${pactbroker.hostname}", port = "80")
```
You can provide a default value by separating the property name with a colon (`:`):
```java
@PactBroker(host="${pactbroker.hostname:localhost}", port = "80")
```
#### More Java System properties
The default values of the `@PactBroker` annotation now enable variable interpolation.
The following keys may be managed through the environment
* `pactbroker.host`
* `pactbroker.port`
* `pactbroker.scheme`
* `pactbroker.tags` (comma separated)
* `pactbroker.auth.username` (for basic auth)
* `pactbroker.auth.password` (for basic auth)
* `pactbroker.auth.token` (for bearer auth)
* `pactbroker.consumers` (comma separated list to filter pacts by consumer; if not provided, will fetch all pacts for the provider)
#### Using tags with the pact broker
The pact broker allows different versions to be tagged. To load all the pacts:
```java
@PactBroker(host="pactbroker", port = "80", tags = {"latest", "dev", "prod"})
```
The default value for tags is `latest` which is not actually a tag but instead corresponds to the latest version ignoring the tags. If there are multiple consumers matching the name specified in the provider annotation then the latest pact for each of the consumers is loaded.
For any other value the latest pact tagged with the specified tag is loaded.
Specifying multiple tags is an OR operation. For example if you specify `tags = {"dev", "prod"}` then both the latest pact file tagged with `dev` and the latest pact file taggged with `prod` is loaded.
#### Using authentication with the with the pact broker
You can use basic authentication with the `@PactBroker` annotation by setting the `authentication` value to a `@PactBrokerAuth`
annotation. For example:
```java
@PactBroker(host = "${pactbroker.url:localhost}", port = "1234", tags = {"latest", "prod", "dev"},
authentication = @PactBrokerAuth(username = "test", password = "test"))
```
Bearer tokens are also supported. For example:
```java
@PactBroker(host = "${pactbroker.url:localhost}", port = "1234", tags = {"latest", "prod", "dev"},
authentication = @PactBrokerAuth(token = "test"))
```
The `token`, `username` and `password` values also take Java system property expressions.
Preemptive Authentication can be enabled by setting the `pact.pactbroker.httpclient.usePreemptiveAuthentication` Java
system property to `true`.
### Allowing just the changed pact specified in a webhook to be verified [4.0.6+]
When a consumer publishes a new version of a pact file, the Pact broker can fire off a webhook with the URL of the changed
pact file. To allow only the changed pact file to be verified, you can override the URL by adding the annotation
`@AllowOverridePactUrl` to your test class and then setting using the `pact.filter.consumers` and `pact.filter.pacturl`
values as either Java system properties or environment variables. If you have annotated your test class with `@Consumer`
you don't need to provide `pact.filter.consumers`.
### Pact Url
To use pacts from urls annotate the test class with
```java
@PactUrl(urls = {"http://build.server/zoo_app-animal_service.json"} )
```
If you need to load a single pact file from the file system, you can use the `PactUrl` with the URL set to the file path.
### Pact folder
To use pacts from a resource folder of the project annotate test class with
```java
@PactFolder("subfolder/in/resource/directory")
```
### Custom pacts source
It's possible to use a custom Pact source. For this, implement interface `au.com.dius.pact.provider.junit.loader.PactLoader`
and annotate the test class with `@PactSource(MyOwnPactLoader.class)`. **Note:** class `MyOwnPactLoader` must have a default empty constructor or a constructor with one argument of class `Class` which at runtime will be the test class so you can get custom annotations of test class.
### Filtering the interactions that are verified
By default, the pact runner will verify all pacts for the given provider. You can filter the pacts and interactions by
the following methods.
#### Filtering by Consumer
You can run only those pacts for a particular consumer by adding a `@Consumer` annotation to the test class.
For example:
```java
@RunWith(PactRunner.class)
@Provider("Activity Service")
@Consumer("Activity Consumer")
@PactBroker(host = "localhost", port = "80")
public class PactJUnitTest {
@TestTarget
public final Target target = new HttpTarget(5050);
}
```
#### Interaction Filtering
You can filter the interactions that are executed by adding a `@PactFilter` annotation to your test class. The pact
filter annotation will then only verify interactions that have a matching value, by default provider state.
You can provide multiple values to match with.
The filter criteria is defined by the filter property. The filter must implement the
`au.com.dius.pact.provider.junit.filter.InteractionFilter` interface. Also check the `InteractionFilter` interface
for default filter implementations.
For example:
```java
@RunWith(PactRunner.class)
@PactFilter("Activity 100 exists in the database")
public class PactJUnitTest {
}
```
You can also use regular expressions with the filter. For example:
```java
@RunWith(PactRunner.class)
@PactFilter(values = {"^\\/somepath.*"}, filter = InteractionFilter.ByRequestPath.class)
public class PactJUnitTest {
}
```
### Setting the test to not fail when no pacts are found
By default the pact runner will fail the verification test if no pact files are found to verify. To change the
failure into a warning, add a `@IgnoreNoPactsToVerify` annotation to your test class.
#### Ignoring IO errors loading pact files
You can also set the test to ignore any IO and parser exceptions when loading the pact files by setting the
`ignoreIoErrors` attribute on the annotation to `"true"` or setting the JVM system property `pact.verification.ignoreIoErrors`
to `true`.
** WARNING! Do not enable this on your CI server, as this could result in your build passing with no providers
having been verified due to a configuration error. **
## Test target
The field in test class of type `au.com.dius.pact.provider.junit.target.Target` annotated with `au.com.dius.pact.provider.junit.target.TestTarget`
will be used for actual Interaction execution and asserting of contract.
**Note:** there must be exactly 1 such field, otherwise an `InitializationException` will be thrown.
### HttpTarget
`au.com.dius.pact.provider.junit.target.HttpTarget` - out-of-the-box implementation of `au.com.dius.pact.provider.junit.target.Target`
that will play pacts as http request and assert response from service by matching rules from pact.
You can also specify the protocol, defaults to "http".
### AmqpTarget
`au.com.dius.pact.provider.junit.target.AmqpTarget` - out-of-the-box implementation of `au.com.dius.pact.provider.junit.target.Target`
that will play pacts as an AMQP message and assert response from service by matching rules from pact.
**Note for Maven users:** If you use Maven to run your tests, you will have to make sure that the Maven Surefire plugin is at least
version 2.22.1 uses an isolated classpath.
For example, configure it by adding the following to your POM:
```xml
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
<configuration>
<useSystemClassLoader>false</useSystemClassLoader>
</configuration>
</plugin>
```
#### Modifying the requests before they are sent
Sometimes you may need to add things to the requests that can't be persisted in a pact file. Examples of these would
be authentication tokens, which have a small life span. The HttpTarget supports request filters by annotating methods
on the test class with `@TargetRequestFilter`. These methods must be public void methods that take a single HttpRequest
parameter.
For example:
```java
@TargetRequestFilter
public void exampleRequestFilter(HttpRequest request) {
request.addHeader("Authorization", "OAUTH hdsagasjhgdjashgdah...");
}
```
__*Important Note:*__ You should only use this feature for things that can not be persisted in the pact file. By modifying
the request, you are potentially modifying the contract from the consumer tests!
#### Turning off URL decoding of the paths in the pact file
By default the paths loaded from the pact file will be decoded before the request is sent to the provider. To turn this
behaviour off, set the system property `pact.verifier.disableUrlPathDecoding` to `true`.
__*Important Note:*__ If you turn off the url path decoding, you need to ensure that the paths in the pact files are
correctly encoded. The verifier will not be able to make a request with an invalid encoded path.
### Custom Test Target
It's possible to use custom `Target`, for that interface `Target` should be implemented and this class can be used instead of `HttpTarget`.
# Verification Reports
The default test behaviour is to display the verification being done to the console, and pass or fail the test via the normal
JUnit mechanism. Additional reports can be generated from the tests.
## Enabling additional reports via annotations on the test classes
A `@VerificationReports` annotation can be added to any pact test class which will control the verification output. The
annotation takes a list report types and an optional report directory (defaults to "target/pact/reports").
The currently supported report types are `console`, `markdown` and `json`.
For example:
```java
@VerificationReports({"console", "markdown"})
public class MyPactTest {
```
will enable the markdown report in addition to the normal console output. And,
```java
@VerificationReports(value = {"markdown"}, reportDir = "/myreports")
public class MyPactTest {
```
will disable the normal console output and write the markdown reports to "/myreports".
## Enabling additional reports via Java system properties or environment variables
The additional reports can also be enabled with Java System properties or environment variables. The following two
properties have been introduced: `pact.verification.reports` and `pact.verification.reportDir`.
`pact.verification.reports` is the comma separated list of report types to enable (e.g. `console,json,markdown`).
`pact.verification.reportDir` is the directory to write reports to (defaults to "target/pact/reports").
## Additional Reports
The following report types are available in addition to console output (`console`, which is enabled by default):
`markdown`, `json`.
You can also provide a fully qualified classname as report so custom reports are also supported.
This class must implement `au.com.dius.pact.provider.reporters.VerifierReporter` interface in order to be correct custom implementation of a report.
# Publishing verification results to a Pact Broker
For pacts that are loaded from a Pact Broker, the results of running the verification can be published back to the
broker against the URL for the pact. You will be able to see the result on the Pact Broker home screen. You need to
set the version of the provider that is verified using the `pact.provider.version` system property.
To enable publishing of results, set the Java system property or environment variable `pact.verifier.publishResults` to `true`.
## Tagging the provider before verification results are published [4.0.1+]
You can have a tag pushed against the provider version before the verification results are published. To do this
you need set the `pact.provider.tag` JVM system property to the tag value.
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License Apache 2
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Dependencies fluent-hc, httpclient, junit, commons-lang3, jool, guava-retrying, mail, pact-jvm-core-support, pact-jvm-provider,
There are maybe transitive dependencies!
Group au.com.dius
Version 4.0.10
Last update 18. April 2020
Organization not specified
URL https://github.com/DiUS/pact-jvm
License Apache 2
Dependencies amount 9
Dependencies fluent-hc, httpclient, junit, commons-lang3, jool, guava-retrying, mail, pact-jvm-core-support, pact-jvm-provider,
There are maybe transitive dependencies!
pact-jvm-consumer-junit from group au.com.dius (version 4.0.10)
pact-jvm-consumer-junit
=======================
Provides a DSL and a base test class for use with Junit to build consumer tests.
## Dependency
The library is available on maven central using:
* group-id = `au.com.dius`
* artifact-id = `pact-jvm-consumer-junit`
* version-id = `4.0.x`
## Usage
### Using the base ConsumerPactTest
To write a pact spec extend ConsumerPactTest. This base class defines the following four methods which must be
overridden in your test class.
* *providerName:* Returns the name of the API provider that Pact will mock
* *consumerName:* Returns the name of the API consumer that we are testing.
* *createFragment:* Returns the PactFragment containing the interactions that the test setup using the
ConsumerPactBuilder DSL
* *runTest:* The actual test run. It receives the URL to the mock server as a parameter.
Here is an example:
```java
import au.com.dius.pact.consumer.dsl.PactDslWithProvider;
import au.com.dius.pact.consumer.exampleclients.ConsumerClient;
import au.com.dius.pact.consumer.ConsumerPactTest;
import au.com.dius.pact.model.PactFragment;
import org.junit.Assert;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import static org.junit.Assert.assertEquals;
public class ExampleJavaConsumerPactTest extends ConsumerPactTest {
@Override
protected RequestResponsePact createFragment(PactDslWithProvider builder) {
Map<String, String> headers = new HashMap<String, String>();
headers.put("testreqheader", "testreqheadervalue");
return builder
.given("test state") // NOTE: Using provider states are optional, you can leave it out
.uponReceiving("ExampleJavaConsumerPactTest test interaction")
.path("/")
.method("GET")
.headers(headers)
.willRespondWith()
.status(200)
.headers(headers)
.body("{\"responsetest\": true, \"name\": \"harry\"}")
.given("test state 2") // NOTE: Using provider states are optional, you can leave it out
.uponReceiving("ExampleJavaConsumerPactTest second test interaction")
.method("OPTIONS")
.headers(headers)
.path("/second")
.body("")
.willRespondWith()
.status(200)
.headers(headers)
.body("")
.toPact();
}
@Override
protected String providerName() {
return "test_provider";
}
@Override
protected String consumerName() {
return "test_consumer";
}
@Override
protected void runTest(MockServer mockServer, PactTestExecutionContext context) throws IOException {
Assert.assertEquals(new ConsumerClient(mockServer.getUrl()).options("/second"), 200);
Map expectedResponse = new HashMap();
expectedResponse.put("responsetest", true);
expectedResponse.put("name", "harry");
assertEquals(new ConsumerClient(mockServer.getUrl()).getAsMap("/", ""), expectedResponse);
assertEquals(new ConsumerClient(mockServer.getUrl()).options("/second"), 200);
}
}
```
### Using the Pact JUnit Rule
Thanks to [@warmuuh](https://github.com/warmuuh) we have a JUnit rule that simplifies running Pact consumer tests. To use it, create a test class
and then add the rule:
#### 1. Add the Pact Rule to your test class to represent your provider.
```java
@Rule
public PactProviderRule mockProvider = new PactProviderRule("test_provider", "localhost", 8080, this);
```
The hostname and port are optional. If left out, it will default to 127.0.0.1 and a random available port. You can get
the URL and port from the pact provider rule.
#### 2. Annotate a method with Pact that returns a pact fragment for the provider and consumer
```java
@Pact(provider="test_provider", consumer="test_consumer")
public RequestResponsePact createPact(PactDslWithProvider builder) {
return builder
.given("test state")
.uponReceiving("ExampleJavaConsumerPactRuleTest test interaction")
.path("/")
.method("GET")
.willRespondWith()
.status(200)
.body("{\"responsetest\": true}")
.toPact();
}
```
You can leave the provider name out. It will then use the provider name of the first mock provider found. I.e.,
```java
@Pact(consumer="test_consumer") // will default to the provider name from mockProvider
public RequestResponsePact createFragment(PactDslWithProvider builder) {
return builder
.given("test state")
.uponReceiving("ExampleJavaConsumerPactRuleTest test interaction")
.path("/")
.method("GET")
.willRespondWith()
.status(200)
.body("{\"responsetest\": true}")
.toPact();
}
```
#### 3. Annotate your test method with PactVerification to have it run in the context of the mock server setup with the appropriate pact from step 1 and 2
```java
@Test
@PactVerification("test_provider")
public void runTest() {
Map expectedResponse = new HashMap();
expectedResponse.put("responsetest", true);
assertEquals(new ConsumerClient(mockProvider.getUrl()).get("/"), expectedResponse);
}
```
You can leave the provider name out. It will then use the provider name of the first mock provider found. I.e.,
```java
@Test
@PactVerification
public void runTest() {
// This will run against mockProvider
Map expectedResponse = new HashMap();
expectedResponse.put("responsetest", true);
assertEquals(new ConsumerClient("http://localhost:8080").get("/"), expectedResponse);
}
```
For an example, have a look at [ExampleJavaConsumerPactRuleTest](src/test/java/au/com/dius/pact/consumer/examples/ExampleJavaConsumerPactRuleTest.java)
### Requiring a test with multiple providers
The Pact Rule can be used to test with multiple providers. Just add a rule to the test class for each provider, and
then include all the providers required in the `@PactVerification` annotation. For an example, look at
[PactMultiProviderTest](src/test/java/au/com/dius/pact/consumer/pactproviderrule/PactMultiProviderTest.java).
Note that if more than one provider fails verification for the same test, you will only receive a failure for one of them.
Also, to have multiple tests in the same test class, the providers must be setup with random ports (i.e. don't specify
a hostname and port). Also, if the provider name is left out of any of the annotations, the first one found will be used
(which may not be the first one defined).
### Requiring the mock server to run with HTTPS
The mock server can be started running with HTTPS using a self-signed certificate instead of HTTP.
To enable this set the `https` parameter to `true`.
E.g.:
```java
@Rule
public PactProviderRule mockTestProvider = new PactProviderRule("test_provider", "localhost", 8443, true,
PactSpecVersion.V2, this); // ^^^^
```
For an example test doing this, see [PactProviderHttpsTest](src/test/java/au/com/dius/pact/consumer/pactproviderrule/PactProviderHttpsTest.java).
**NOTE:** The provider will start handling HTTPS requests using a self-signed certificate. Most HTTP clients will not accept
connections to a self-signed server as the certificate is untrusted. You may need to enable insecure HTTPS with your client
for this test to work. For an example of how to enable insecure HTTPS client connections with Apache Http Client, have a
look at [InsecureHttpsRequest](src/test/java/org/apache/http/client/fluent/InsecureHttpsRequest.java).
### Requiring the mock server to run with HTTPS with a keystore
The mock server can be started running with HTTPS using a keystore.
To enable this set the `https` parameter to `true`, set the keystore path/file, and the keystore's password.
E.g.:
```java
@Rule
public PactProviderRule mockTestProvider = new PactProviderRule("test_provider", "localhost", 8443, true,
"/path/to/your/keystore.jks", "your-keystore-password", PactSpecVersion.V2, this);
```
For an example test doing this, see [PactProviderHttpsKeystoreTest](src/test/java/au/com/dius/pact/consumer/pactproviderrule/PactProviderHttpsKeystoreTest.java).
### Setting default expected request and response values
If you have a lot of tests that may share some values (like headers), you can setup default values that will be applied
to all the expected requests and responses for the tests. To do this, you need to create a method that takes single
parameter of the appropriate type (`PactDslRequestWithoutPath` or `PactDslResponse`) and annotate it with the default
marker annotation (`@DefaultRequestValues` or `@DefaultResponseValues`).
For example:
```java
@DefaultRequestValues
public void defaultRequestValues(PactDslRequestWithoutPath request) {
Map<String, String> headers = new HashMap<String, String>();
headers.put("testreqheader", "testreqheadervalue");
request.headers(headers);
}
@DefaultResponseValues
public void defaultResponseValues(PactDslResponse response) {
Map<String, String> headers = new HashMap<String, String>();
headers.put("testresheader", "testresheadervalue");
response.headers(headers);
}
```
For an example test that uses these, have a look at [PactProviderWithMultipleFragmentsTest](src/test/java/au/com/dius/pact/consumer/pactproviderrule/PactProviderWithMultipleFragmentsTest.java)
### Note on HTTP clients and persistent connections
Some HTTP clients may keep the connection open, based on the live connections settings or if they use a connection cache. This could
cause your tests to fail if the client you are testing lives longer than an individual test, as the mock server will be started
and shutdown for each test. This will result in the HTTP client connection cache having invalid connections. For an example of this where
the there was a failure for every second test, see [Issue #342](https://github.com/DiUS/pact-jvm/issues/342).
### Using the Pact DSL directly
Sometimes it is not convenient to use the ConsumerPactTest as it only allows one test per test class. The DSL can be
used directly in this case.
Example:
```java
import au.com.dius.pact.consumer.ConsumerPactBuilder;
import au.com.dius.pact.consumer.PactVerificationResult;
import au.com.dius.pact.consumer.exampleclients.ProviderClient;
import au.com.dius.pact.model.MockProviderConfig;
import au.com.dius.pact.model.RequestResponsePact;
import org.junit.Test;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import static au.com.dius.pact.consumer.ConsumerPactRunnerKt.runConsumerTest;
import static org.junit.Assert.assertEquals;
/**
* Sometimes it is not convenient to use the ConsumerPactTest as it only allows one test per test class.
* The DSL can be used directly in this case.
*/
public class DirectDSLConsumerPactTest {
@Test
public void testPact() {
RequestResponsePact pact = ConsumerPactBuilder
.consumer("Some Consumer")
.hasPactWith("Some Provider")
.uponReceiving("a request to say Hello")
.path("/hello")
.method("POST")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
.toPact();
MockProviderConfig config = MockProviderConfig.createDefault();
PactVerificationResult result = runConsumerTest(pact, config, (mockServer, context) -> {
Map expectedResponse = new HashMap();
expectedResponse.put("hello", "harry");
try {
assertEquals(new ProviderClient(mockServer.getUrl()).hello("{\"name\": \"harry\"}"),
expectedResponse);
} catch (IOException e) {
throw new RuntimeException(e);
}
});
if (result instanceof PactVerificationResult.Error) {
throw new RuntimeException(((PactVerificationResult.Error)result).getError());
}
assertEquals(PactVerificationResult.Ok.INSTANCE, result);
}
}
```
### The Pact JUnit DSL
The DSL has the following pattern:
```java
.consumer("Some Consumer")
.hasPactWith("Some Provider")
.given("a certain state on the provider")
.uponReceiving("a request for something")
.path("/hello")
.method("POST")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
.uponReceiving("another request for something")
.path("/hello")
.method("POST")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
.
.
.
.toPact()
```
You can define as many interactions as required. Each interaction starts with `uponReceiving` followed by `willRespondWith`.
The test state setup with `given` is a mechanism to describe what the state of the provider should be in before the provider
is verified. It is only recorded in the consumer tests and used by the provider verification tasks.
### Building JSON bodies with PactDslJsonBody DSL
**NOTE:** If you are using Java 8, there is [an updated DSL for consumer tests](../pact-jvm-consumer-java8).
The body method of the ConsumerPactBuilder can accept a PactDslJsonBody, which can construct a JSON body as well as
define regex and type matchers.
For example:
```java
PactDslJsonBody body = new PactDslJsonBody()
.stringType("name")
.booleanType("happy")
.hexValue("hexCode")
.id()
.ipAddress("localAddress")
.numberValue("age", 100)
.timestamp();
```
#### DSL Matching methods
The following matching methods are provided with the DSL. In most cases, they take an optional value parameter which
will be used to generate example values (i.e. when returning a mock response). If no example value is given, a random
one will be generated.
| method | description |
|--------|-------------|
| string, stringValue | Match a string value (using string equality) |
| number, numberValue | Match a number value (using Number.equals)\* |
| booleanValue | Match a boolean value (using equality) |
| stringType | Will match all Strings |
| numberType | Will match all numbers\* |
| integerType | Will match all numbers that are integers (both ints and longs)\* |
| decimalType | Will match all real numbers (floating point and decimal)\* |
| booleanType | Will match all boolean values (true and false) |
| stringMatcher | Will match strings using the provided regular expression |
| timestamp | Will match string containing timestamps. If a timestamp format is not given, will match an ISO timestamp format |
| date | Will match string containing dates. If a date format is not given, will match an ISO date format |
| time | Will match string containing times. If a time format is not given, will match an ISO time format |
| ipAddress | Will match string containing IP4 formatted address. |
| id | Will match all numbers by type |
| hexValue | Will match all hexadecimal encoded strings |
| uuid | Will match strings containing UUIDs |
| includesStr | Will match strings containing the provided string |
| equalsTo | Will match using equals |
| matchUrl | Defines a matcher for URLs, given the base URL path and a sequence of path fragments. The path fragments could be strings or regular expression matchers |
_\* Note:_ JSON only supports double precision floating point values. Depending on the language implementation, they
may parsed as integer, floating point or decimal numbers.
#### Ensuring all items in a list match an example
Lots of the time you might not know the number of items that will be in a list, but you want to ensure that the list
has a minimum or maximum size and that each item in the list matches a given example. You can do this with the `arrayLike`,
`minArrayLike` and `maxArrayLike` functions.
| function | description |
|----------|-------------|
| `eachLike` | Ensure that each item in the list matches the provided example |
| `maxArrayLike` | Ensure that each item in the list matches the provided example and the list is no bigger than the provided max |
| `minArrayLike` | Ensure that each item in the list matches the provided example and the list is no smaller than the provided min |
For example:
```java
DslPart body = new PactDslJsonBody()
.minArrayLike("users", 1)
.id()
.stringType("name")
.closeObject()
.closeArray();
```
This will ensure that the users list is never empty and that each user has an identifier that is a number and a name that is a string.
You can specify the number of example items to generate in the array. The default is 1.
```java
DslPart body = new PactDslJsonBody()
.minArrayLike("users", 1, 2)
.id()
.stringType("name")
.closeObject()
.closeArray();
```
This will generate the example body with 2 items in the users list.
#### Root level arrays that match all items
If the root of the body is an array, you can create PactDslJsonArray classes with the following methods:
| function | description |
|----------|-------------|
| `arrayEachLike` | Ensure that each item in the list matches the provided example |
| `arrayMinLike` | Ensure that each item in the list matches the provided example and the list is no bigger than the provided max |
| `arrayMaxLike` | Ensure that each item in the list matches the provided example and the list is no smaller than the provided min |
For example:
```java
PactDslJsonArray.arrayEachLike()
.date("clearedDate", "mm/dd/yyyy", date)
.stringType("status", "STATUS")
.decimalType("amount", 100.0)
.closeObject()
```
This will then match a body like:
```json
[ {
"clearedDate" : "07/22/2015",
"status" : "C",
"amount" : 15.0
}, {
"clearedDate" : "07/22/2015",
"status" : "C",
"amount" : 15.0
}, {
"clearedDate" : "07/22/2015",
"status" : "C",
"amount" : 15.0
} ]
```
You can specify the number of example items to generate in the array. The default is 1.
#### Matching JSON values at the root
For cases where you are expecting basic JSON values (strings, numbers, booleans and null) at the root level of the body
and need to use matchers, you can use the `PactDslJsonRootValue` class. It has all the DSL matching methods for basic
values that you can use.
For example:
```java
.consumer("Some Consumer")
.hasPactWith("Some Provider")
.uponReceiving("a request for a basic JSON value")
.path("/hello")
.willRespondWith()
.status(200)
.body(PactDslJsonRootValue.integerType())
```
#### Matching any key in a map
The DSL has been extended for cases where the keys in a map are IDs. For an example of this, see
[#313](https://github.com/DiUS/pact-jvm/issues/313). In this case you can use the `eachKeyLike` method, which takes an
example key as a parameter.
For example:
```java
DslPart body = new PactDslJsonBody()
.object("one")
.eachKeyLike("001", PactDslJsonRootValue.id(12345L)) // key like an id mapped to a matcher
.closeObject()
.object("two")
.eachKeyLike("001-A") // key like an id where the value is matched by the following example
.stringType("description", "Some Description")
.closeObject()
.closeObject()
.object("three")
.eachKeyMappedToAnArrayLike("001") // key like an id mapped to an array where each item is matched by the following example
.id("someId", 23456L)
.closeObject()
.closeArray()
.closeObject();
```
For an example, have a look at [WildcardKeysTest](src/test/java/au/com/dius/pact/consumer/WildcardKeysTest.java).
**NOTE:** The `eachKeyLike` method adds a `*` to the matching path, so the matching definition will be applied to all keys
of the map if there is not a more specific matcher defined for a particular key. Having more than one `eachKeyLike` condition
applied to a map will result in only one being applied when the pact is verified (probably the last).
**Further Note: From version 3.5.22 onwards pacts with wildcards applied to map keys will require the Java system property
"pact.matching.wildcard" set to value "true" when the pact file is verified.**
#### Combining matching rules with AND/OR
Matching rules can be combined with AND/OR. There are two methods available on the DSL for this. For example:
```java
DslPart body = new PactDslJsonBody()
.numberValue("valueA", 100)
.and("valueB","AB", PM.includesStr("A"), PM.includesStr("B")) // Must match both matching rules
.or("valueC", null, PM.date(), PM.nullValue()) // will match either a valid date or a null value
```
The `and` and `or` methods take a variable number of matchers (varargs).
### Matching on paths
You can use regular expressions to match incoming requests. The DSL has a `matchPath` method for this. You can provide
a real path as a second value to use when generating requests, and if you leave it out it will generate a random one
from the regular expression.
For example:
```java
.given("test state")
.uponReceiving("a test interaction")
.matchPath("/transaction/[0-9]+") // or .matchPath("/transaction/[0-9]+", "/transaction/1234567890")
.method("POST")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
```
### Matching on headers
You can use regular expressions to match request and response headers. The DSL has a `matchHeader` method for this. You can provide
an example header value to use when generating requests and responses, and if you leave it out it will generate a random one
from the regular expression.
For example:
```java
.given("test state")
.uponReceiving("a test interaction")
.path("/hello")
.method("POST")
.matchHeader("testreqheader", "test.*value")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
.matchHeader("Location", ".*/hello/[0-9]+", "/hello/1234")
```
### Matching on query parameters
You can use regular expressions to match request query parameters. The DSL has a `matchQuery` method for this. You can provide
an example value to use when generating requests, and if you leave it out it will generate a random one
from the regular expression.
For example:
```java
.given("test state")
.uponReceiving("a test interaction")
.path("/hello")
.method("POST")
.matchQuery("a", "\\d+", "100")
.matchQuery("b", "[A-Z]", "X")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
```
## Debugging pact failures
When the test runs, Pact will start a mock provider that will listen for requests and match them against the expectations
you setup in `createFragment`. If the request does not match, it will return a 500 error response.
Each request received and the generated response is logged using [SLF4J](http://www.slf4j.org/). Just enable debug level
logging for au.com.dius.pact.consumer.UnfilteredMockProvider. Most failures tend to be mismatched headers or bodies.
## Changing the directory pact files are written to
By default, pact files are written to `target/pacts` (or `build/pacts` if you use Gradle), but this can be overwritten with the `pact.rootDir` system property.
This property needs to be set on the test JVM as most build tools will fork a new JVM to run the tests.
For Gradle, add this to your build.gradle:
```groovy
test {
systemProperties['pact.rootDir'] = "$buildDir/custom-pacts-directory"
}
```
For maven, use the systemPropertyVariables configuration:
```xml
<project>
[...]
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.18</version>
<configuration>
<systemPropertyVariables>
<pact.rootDir>some/other/directory</pact.rootDir>
<buildDirectory>${project.build.directory}</buildDirectory>
[...]
</systemPropertyVariables>
</configuration>
</plugin>
</plugins>
</build>
[...]
</project>
```
For SBT:
```scala
fork in Test := true,
javaOptions in Test := Seq("-Dpact.rootDir=some/other/directory")
```
### Using `@PactFolder` annotation
You can override the directory the pacts are written in a test by adding the `@PactFolder` annotation to the test
class.
## Forcing pact files to be overwritten (3.6.5+)
By default, when the pact file is written, it will be merged with any existing pact file. To force the file to be
overwritten, set the Java system property `pact.writer.overwrite` to `true`.
# Publishing your pact files to a pact broker
If you use Gradle, you can use the [pact Gradle plugin](../../provider/pact-jvm-provider-gradle#publishing-pact-files-to-a-pact-broker) to publish your pact files.
# Pact Specification V3
Version 3 of the pact specification changes the format of pact files in the following ways:
* Query parameters are stored in a map form and are un-encoded (see [#66](https://github.com/DiUS/pact-jvm/issues/66)
and [#97](https://github.com/DiUS/pact-jvm/issues/97) for information on what this can cause).
* Introduces a new message pact format for testing interactions via a message queue.
* Multiple provider states can be defined with data parameters.
## Generating V2 spec pact files
To have your consumer tests generate V2 format pacts, you can set the specification version to V2. If you're using the
`ConsumerPactTest` base class, you can override the `getSpecificationVersion` method. For example:
```java
@Override
protected PactSpecVersion getSpecificationVersion() {
return PactSpecVersion.V2;
}
```
If you are using the `PactProviderRule`, you can pass the version into the constructor for the rule.
```java
@Rule
public PactProviderRule mockTestProvider = new PactProviderRule("test_provider", PactSpecVersion.V2, this);
```
## Consumer test for a message consumer
For testing a consumer of messages from a message queue, the `MessagePactProviderRule` rule class works in much the
same way as the `PactProviderRule` class for Request-Response interactions, but will generate a V3 format message pact file.
For an example, look at [ExampleMessageConsumerTest](src/test/java/au/com/dius/pact/consumer/v3%2FExampleMessageConsumerTest.java)
# Having values injected from provider state callbacks (3.6.11+)
You can have values from the provider state callbacks be injected into most places (paths, query parameters, headers,
bodies, etc.). This works by using the V3 spec generators with provider state callbacks that return values. One example
of where this would be useful is API calls that require an ID which would be auto-generated by the database on the
provider side, so there is no way to know what the ID would be beforehand.
The following DSL methods all you to set an expression that will be parsed with the values returned from the provider states:
For JSON bodies, use `valueFromProviderState`.<br/>
For headers, use `headerFromProviderState`.<br/>
For query parameters, use `queryParameterFromProviderState`.<br/>
For paths, use `pathFromProviderState`.
For example, assume that an API call is made to get the details of a user by ID. A provider state can be defined that
specifies that the user must be exist, but the ID will be created when the user is created. So we can then define an
expression for the path where the ID will be replaced with the value returned from the provider state callback.
```java
.pathFromProviderState("/api/users/${id}", "/api/users/100")
```
You can also just use the key instead of an expression:
```java
.valueFromProviderState('userId', 'userId', 100) // will look value using userId as the key
```
Group: au.com.dius Artifact: pact-jvm-consumer-junit
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Artifact pact-jvm-consumer-junit
Group au.com.dius
Version 4.0.10
Last update 18. April 2020
Organization not specified
URL https://github.com/DiUS/pact-jvm
License Apache 2
Dependencies amount 5
Dependencies pact-jvm-consumer, junit, json, commons-lang3, guava,
There are maybe transitive dependencies!
Group au.com.dius
Version 4.0.10
Last update 18. April 2020
Organization not specified
URL https://github.com/DiUS/pact-jvm
License Apache 2
Dependencies amount 5
Dependencies pact-jvm-consumer, junit, json, commons-lang3, guava,
There are maybe transitive dependencies!
pact-jvm-consumer-groovy from group au.com.dius (version 4.0.10)
pact-jvm-consumer-groovy
=========================
Groovy DSL for Pact JVM
## Dependency
The library is available on maven central using:
* group-id = `au.com.dius`
* artifact-id = `pact-jvm-consumer-groovy`
* version-id = `4.0.x`
## Usage
Add the `pact-jvm-consumer-groovy` library to your test class path. This provides a `PactBuilder` class for you to use
to define your pacts. For a full example, have a look at the example JUnit `ExampleGroovyConsumerPactTest`.
If you are using gradle for your build, add it to your `build.gradle`:
dependencies {
testCompile 'au.com.dius:pact-jvm-consumer-groovy:4.0.0'
}
Then create an instance of the `PactBuilder` in your test.
```groovy
import au.com.dius.pact.consumer.PactVerificationResult
import au.com.dius.pact.consumer.groovy.PactBuilder
import groovyx.net.http.RESTClient
import org.junit.Test
class AliceServiceConsumerPactTest {
@Test
void "A service consumer side of a pact goes a little something like this"() {
def alice_service = new PactBuilder() // Create a new PactBuilder
alice_service {
serviceConsumer "Consumer" // Define the service consumer by name
hasPactWith "Alice Service" // Define the service provider that it has a pact with
port 1234 // The port number for the service. It is optional, leave it out to
// to use a random one
given('there is some good mallory') // defines a provider state. It is optional.
uponReceiving('a retrieve Mallory request') // upon_receiving starts a new interaction
withAttributes(method: 'get', path: '/mallory') // define the request, a GET request to '/mallory'
willRespondWith( // define the response we want returned
status: 200,
headers: ['Content-Type': 'text/html'],
body: '"That is some good Mallory."'
)
}
// Execute the run method to have the mock server run.
// It takes a closure to execute your requests and returns a PactVerificationResult.
PactVerificationResult result = alice_service.runTest {
def client = new RESTClient('http://localhost:1234/')
def alice_response = client.get(path: '/mallory')
assert alice_response.status == 200
assert alice_response.contentType == 'text/html'
def data = alice_response.data.text()
assert data == '"That is some good Mallory."'
}
assert result == PactVerificationResult.Ok.INSTANCE // This means it is all good
}
}
```
After running this test, the following pact file is produced:
{
"provider" : {
"name" : "Alice Service"
},
"consumer" : {
"name" : "Consumer"
},
"interactions" : [ {
"provider_state" : "there is some good mallory",
"description" : "a retrieve Mallory request",
"request" : {
"method" : "get",
"path" : "/mallory",
"requestMatchers" : { }
},
"response" : {
"status" : 200,
"headers" : {
"Content-Type" : "text/html"
},
"body" : "That is some good Mallory.",
"responseMatchers" : { }
}
} ]
}
### DSL Methods
#### serviceConsumer(String consumer)
This names the service consumer for the pact.
#### hasPactWith(String provider)
This names the service provider for the pact.
#### port(int port)
Sets the port that the mock server will run on. If not supplied, a random port will be used.
#### given(String providerState)
Defines a state that the provider needs to be in for the request to succeed. For more info, see
https://github.com/realestate-com-au/pact/wiki/Provider-states. Can be called multiple times.
#### given(String providerState, Map params)
Defines a state that the provider needs to be in for the request to succeed. For more info, see
https://github.com/realestate-com-au/pact/wiki/Provider-states. Can be called multiple times, and the params
map can contain the data required for the state.
#### uponReceiving(String requestDescription)
Starts the definition of a of a pact interaction.
#### withAttributes(Map requestData)
Defines the request for the interaction. The request data map can contain the following:
| key | Description | Default Value |
|----------------------------|-------------------------------------------|-----------------------------|
| method | The HTTP method to use | get |
| path | The Path for the request | / |
| query | Query parameters as a Map<String, List> | |
| headers | Map of key-value pairs for the request headers | |
| body | The body of the request. If it is not a string, it will be converted to JSON. Also accepts a PactBodyBuilder. | |
| prettyPrint | Boolean value to control if the body is pretty printed. See note on Pretty Printed Bodies below |
For the path, header attributes and query parameters (version 2.2.2+ for headers, 3.3.7+ for query parameters),
you can use regular expressions to match. You can either provide a regex `Pattern` class or use the `regexp` method
to construct a `RegexpMatcher` (you can use any of the defined matcher methods, see DSL methods below).
If you use a `Pattern`, or the `regexp` method but don't provide a value, a random one will be generated from the
regular expression. This value is used when generating requests.
For example:
```groovy
.withAttributes(path: ~'/transaction/[0-9]+') // This will generate a random path for requests
// or
.withAttributes(path: regexp('/transaction/[0-9]+', '/transaction/1234567890'))
```
#### withBody(Closure closure)
Constructs the body of the request or response by invoking the supplied closure in the context of a PactBodyBuilder.
##### Pretty Printed Bodies
An optional Map can be supplied to control how the body is generated. The option values are available:
| Option | Description |
|--------|-------------|
| mimeType | The mime type of the body. Defaults to `application/json` |
| prettyPrint | Boolean value controlling whether to pretty-print the body or not. Defaults to true |
If the prettyPrint option is not specified, the bodies will be pretty printed unless the mime type corresponds to one
that requires compact bodies. Currently only `application/x-thrift+json` is classed as requiring a compact body.
For an example of turning off pretty printing:
```groovy
service {
uponReceiving('a request')
withAttributes(method: 'get', path: '/')
withBody(prettyPrint: false) {
name 'harry'
surname 'larry'
}
}
```
#### willRespondWith(Map responseData)
Defines the response for the interaction. The response data map can contain the following:
| key | Description | Default Value |
|----------------------------|-------------------------------------------|-----------------------------|
| status | The HTTP status code to return | 200 |
| headers | Map of key-value pairs for the response headers | |
| body | The body of the response. If it is not a string, it will be converted to JSON. Also accepts a PactBodyBuilder. | |
| prettyPrint | Boolean value to control if the body is pretty printed. See note on Pretty Printed Bodies above |
For the headers (version 2.2.2+), you can use regular expressions to match. You can either provide a regex `Pattern` class or use
the `regexp` method to construct a `RegexpMatcher` (you can use any of the defined matcher methods, see DSL methods below).
If you use a `Pattern`, or the `regexp` method but don't provide a value, a random one will be generated from the
regular expression. This value is used when generating responses.
For example:
```groovy
.willRespondWith(headers: [LOCATION: ~'/transaction/[0-9]+']) // This will generate a random location value
// or
.willRespondWith(headers: [LOCATION: regexp('/transaction/[0-9]+', '/transaction/1234567890')])
```
#### PactVerificationResult runTest(Closure closure)
The `runTest` method starts the mock server, and then executes the provided closure. It then returns the pact verification
result for the pact run. If you require access to the mock server configuration for the URL, it is passed into the
closure, e.g.,
```groovy
PactVerificationResult result = alice_service.runTest() { mockServer ->
def client = new RESTClient(mockServer.url)
def alice_response = client.get(path: '/mallory')
}
```
### Note on HTTP clients and persistent connections
Some HTTP clients may keep the connection open, based on the live connections settings or if they use a connection cache. This could
cause your tests to fail if the client you are testing lives longer than an individual test, as the mock server will be started
and shutdown for each test. This will result in the HTTP client connection cache having invalid connections. For an example of this where
the there was a failure for every second test, see [Issue #342](https://github.com/DiUS/pact-jvm/issues/342).
### Body DSL
For building JSON bodies there is a `PactBodyBuilder` that provides as DSL that includes matching with regular expressions
and by types. For a more complete example look at `PactBodyBuilderTest`.
For an example:
```groovy
service {
uponReceiving('a request')
withAttributes(method: 'get', path: '/')
withBody {
name(~/\w+/, 'harry')
surname regexp(~/\w+/, 'larry')
position regexp(~/staff|contractor/, 'staff')
happy(true)
}
}
```
This will return the following body:
```json
{
"name": "harry",
"surname": "larry",
"position": "staff",
"happy": true
}
```
and add the following matchers:
```json
{
"$.body.name": {"regex": "\\w+"},
"$.body.surname": {"regex": "\\w+"},
"$.body.position": {"regex": "staff|contractor"}
}
```
#### DSL Methods
The DSL supports the following matching methods:
* regexp(Pattern re, String value = null), regexp(String regexp, String value = null)
Defines a regular expression matcher. If the value is not provided, a random one will be generated.
* hexValue(String value = null)
Defines a matcher that accepts hexidecimal values. If the value is not provided, a random hexidcimal value will be
generated.
* identifier(def value = null)
Defines a matcher that accepts integer values. If the value is not provided, a random value will be generated.
* ipAddress(String value = null)
Defines a matcher that accepts IP addresses. If the value is not provided, a 127.0.0.1 will be used.
* numeric(Number value = null)
Defines a matcher that accepts any numerical values. If the value is not provided, a random integer will be used.
* integer(def value = null)
Defines a matcher that accepts any integer values. If the value is not provided, a random integer will be used.
* decimal(def value = null)
Defines a matcher that accepts any decimal numbers. If the value is not provided, a random decimal will be used.
* timestamp(String pattern = null, def value = null)
If pattern is not provided the ISO_DATETIME_FORMAT is used ("yyyy-MM-dd'T'HH:mm:ss") . If the value is not provided, the current date and time is used.
* time(String pattern = null, def value = null)
If pattern is not provided the ISO_TIME_FORMAT is used ("'T'HH:mm:ss") . If the value is not provided, the current date and time is used.
* date(String pattern = null, def value = null)
If pattern is not provided the ISO_DATE_FORMAT is used ("yyyy-MM-dd") . If the value is not provided, the current date and time is used.
* uuid(String value = null)
Defines a matcher that accepts UUIDs. A random one will be generated if no value is provided.
* equalTo(def value)
Defines an equality matcher that always matches the provided value using `equals`. This is useful for resetting cascading
type matchers.
* includesStr(def value)
Defines a matcher that accepts any value where its string form includes the provided string.
* nullValue()
Defines a matcher that accepts only null values.
* url(String basePath, Object... pathFragments)
Defines a matcher for URLs, given the base URL path and a sequence of path fragments. The path fragments could be
strings or regular expression matchers. For example:
```groovy
url('http://localhost:8080', 'pacticipants', regexp('[^\\/]+', 'Activity%20Service'))
```
Defines a matcher that accepts only null values.
#### What if a field matches a matcher name in the DSL?
When using the body DSL, if there is a field that matches a matcher name (e.g. a field named 'date') then you can do the following:
```groovy
withBody {
date = date()
}
```
### Ensuring all items in a list match an example
Lots of the time you might not know the number of items that will be in a list, but you want to ensure that the list
has a minimum or maximum size and that each item in the list matches a given example. You can do this with the `eachLike`,
`minLike` and `maxLike` functions.
| function | description |
|----------|-------------|
| `eachLike()` | Ensure that each item in the list matches the provided example |
| `maxLike(integer max)` | Ensure that each item in the list matches the provided example and the list is no bigger than the provided max |
| `minLike(integer min)` | Ensure that each item in the list matches the provided example and the list is no smaller than the provided min |
For example:
```groovy
withBody {
users minLike(1) {
id identifier
name string('Fred')
}
}
```
This will ensure that the user list is never empty and that each user has an identifier that is a number and a name that is a string.
You can specify the number of example items to generate in the array. The default is 1.
```groovy
withBody {
users minLike(1, 3) {
id identifier
name string('Fred')
}
}
```
This will create an example user list with 3 users.
The each like matchers have been updated to work with primitive types.
```groovy
withBody {
permissions eachLike(3, 'GRANT')
}
```
will generate the following JSON
```json
{
"permissions": ["GRANT", "GRANT", "GRANT"]
}
```
and matchers
```json
{
"$.body.permissions": {"match": "type"}
}
```
and now you can even get more fancy
```groovy
withBody {
permissions eachLike(3, regexp(~/\w+/))
permissions2 minLike(2, 3, integer())
permissions3 maxLike(4, 3, ~/\d+/)
}
```
You can also match arrays at the root level, for instance,
```groovy
withBody PactBodyBuilder.eachLike(regexp(~/\w+/))
```
or if you have arrays of arrays
```groovy
withBody PactBodyBuilder.eachLike([ regexp('[0-9a-f]{8}', 'e8cda07e'), regexp(~/\w+/, 'sony') ])
```
An `eachArrayLike` method has been added to handle matching of arrays of arrays.
```groovy
{
answers minLike(1) {
questionId string("books")
answer eachArrayLike {
questionId string("title")
answer string("BBBB")
}
}
```
This will generate an array of arrays for the `answer` attribute.
### Matching any key in a map
The DSL has been extended for cases where the keys in a map are IDs. For an example of this, see
[#313](https://github.com/DiUS/pact-jvm/issues/313). In this case you can use the `keyLike` method, which takes an
example key as a parameter.
For example:
```groovy
withBody {
example {
one {
keyLike '001', 'value' // key like an id mapped to a value
}
two {
keyLike 'ABC001', regexp('\\w+') // key like an id mapped to a matcher
}
three {
keyLike 'XYZ001', { // key like an id mapped to a closure
id identifier()
}
}
four {
keyLike '001XYZ', eachLike { // key like an id mapped to an array where each item is matched by the following
id identifier() // example
}
}
}
}
```
For an example, have a look at [WildcardPactSpec](src/test/au/com/dius/pact/consumer/groovy/WildcardPactSpec.groovy).
**NOTE:** The `keyLike` method adds a `*` to the matching path, so the matching definition will be applied to all keys
of the map if there is not a more specific matcher defined for a particular key. Having more than one `keyLike` condition
applied to a map will result in only one being applied when the pact is verified (probably the last).
**Further Note: From version 3.5.22 onwards pacts with wildcards applied to map keys will require the Java system property
"pact.matching.wildcard" set to value "true" when the pact file is verified.**
### Matching with an OR
The V3 spec allows multiple matchers to be combined using either AND or OR for a value. The main use of this would be to
either be able to match a value or a null, or to combine different matchers.
For example:
```groovy
withBody {
valueA and('AB', includeStr('A'), includeStr('B')) // valueA must include both A and B
valueB or('100', regex(~/\d+/), nullValue()) // valueB must either match a regular expression or be null
valueC or('12345678', regex(~/\d{8}/), regex(~/X\d{13}/)) // valueC must match either 8 or X followed by 13 digits
}
```
## Changing the directory pact files are written to
By default, pact files are written to `target/pacts` (or `build/pacts` if you use Gradle), but this can be overwritten with the `pact.rootDir` system property.
This property needs to be set on the test JVM as most build tools will fork a new JVM to run the tests.
For Gradle, add this to your build.gradle:
```groovy
test {
systemProperties['pact.rootDir'] = "$buildDir/custom-pacts-directory"
}
```
## Forcing pact files to be overwritten (3.6.5+)
By default, when the pact file is written, it will be merged with any existing pact file. To force the file to be
overwritten, set the Java system property `pact.writer.overwrite` to `true`.
# Publishing your pact files to a pact broker
If you use Gradle, you can use the [pact Gradle plugin](https://github.com/DiUS/pact-jvm/tree/master/provider/pact-jvm-provider-gradle#publishing-pact-files-to-a-pact-broker) to publish your pact files.
# Pact Specification V3
Version 3 of the pact specification changes the format of pact files in the following ways:
* Query parameters are stored in a map form and are un-encoded (see [#66](https://github.com/DiUS/pact-jvm/issues/66)
and [#97](https://github.com/DiUS/pact-jvm/issues/97) for information on what this can cause).
* Introduces a new message pact format for testing interactions via a message queue.
* Multiple provider states can be defined with data parameters.
## Generating V3 spec pact files
To have your consumer tests generate V3 format pacts, you can pass an option into the `runTest` method. For example:
```groovy
PactVerificationResult result = service.runTest(specificationVersion: PactSpecVersion.V3) { config ->
def client = new RESTClient(config.url)
def response = client.get(path: '/')
}
```
## Consumer test for a message consumer
For testing a consumer of messages from a message queue, the `PactMessageBuilder` class provides a DSL for defining
your message expectations. It works in much the same way as the `PactBuilder` class for Request-Response interactions,
but will generate a V3 format message pact file.
The following steps demonstrate how to use it.
### Step 1 - define the message expectations
Create a test that uses the `PactMessageBuilder` to define a message expectation, and then call `run`. This will invoke
the given closure with a message for each one defined in the pact.
```groovy
def eventStream = new PactMessageBuilder().call {
serviceConsumer 'messageConsumer'
hasPactWith 'messageProducer'
given 'order with id 10000004 exists'
expectsToReceive 'an order confirmation message'
withMetaData(type: 'OrderConfirmed') // Can define any key-value pairs here
withContent(contentType: 'application/json') {
type 'OrderConfirmed'
audit {
userCode 'messageService'
}
origin 'message-service'
referenceId '10000004-2'
timeSent: '2015-07-22T10:14:28+00:00'
value {
orderId '10000004'
value '10.000000'
fee '10.00'
gst '15.00'
}
}
}
```
### Step 2 - call your message handler with the generated messages
This example tests a message handler that gets messages from a Kafka topic. In this case the Pact message is wrapped
as a Kafka `MessageAndMetadata`.
```groovy
eventStream.run { Message message ->
messageHandler.handleMessage(new MessageAndMetadata('topic', 1,
new kafka.message.Message(message.contentsAsBytes()), 0, null, valueDecoder))
}
```
### Step 3 - validate that the message was handled correctly
```groovy
def order = orderRepository.getOrder('10000004')
assert order.status == 'confirmed'
assert order.value == 10.0
```
### Step 4 - Publish the pact file
If the test was successful, a pact file would have been produced with the message from step 1.
# Having values injected from provider state callbacks (3.6.11+)
You can have values from the provider state callbacks be injected into most places (paths, query parameters, headers,
bodies, etc.). This works by using the V3 spec generators with provider state callbacks that return values. One example
of where this would be useful is API calls that require an ID which would be auto-generated by the database on the
provider side, so there is no way to know what the ID would be beforehand.
The DSL method `fromProviderState` allows you to set an expression that will be parsed with the values returned from the provider states.
For the body, you can use the key value instead of an expression.
For example, assume that an API call is made to get the details of a user by ID. A provider state can be defined that
specifies that the user must be exist, but the ID will be created when the user is created. So we can then define an
expression for the path where the ID will be replaced with the value returned from the provider state callback.
```groovy
service {
given('User harry exists')
uponReceiving('a request for user harry')
withAttributes(method: 'get', path: fromProviderState('/api/user/${id}', '/api/user/100'))
withBody {
name(fromProviderState('userName', 'harry')) // looks up the value using the userName key
}
}
```
Group: au.com.dius Artifact: pact-jvm-consumer-groovy
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Artifact pact-jvm-consumer-groovy
Group au.com.dius
Version 4.0.10
Last update 18. April 2020
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URL https://github.com/DiUS/pact-jvm
License Apache 2
Dependencies amount 3
Dependencies groovy, groovy-json, pact-jvm-consumer,
There are maybe transitive dependencies!
Group au.com.dius
Version 4.0.10
Last update 18. April 2020
Organization not specified
URL https://github.com/DiUS/pact-jvm
License Apache 2
Dependencies amount 3
Dependencies groovy, groovy-json, pact-jvm-consumer,
There are maybe transitive dependencies!
pact-jvm-consumer-junit_2.11 from group au.com.dius (version 3.5.24)
pact-jvm-consumer-junit
=======================
Provides a DSL and a base test class for use with Junit to build consumer tests.
## Dependency
The library is available on maven central using:
* group-id = `au.com.dius`
* artifact-id = `pact-jvm-consumer-junit_2.12`
* version-id = `3.5.x`
## Usage
### Using the base ConsumerPactTest
To write a pact spec extend ConsumerPactTestMk2. This base class defines the following four methods which must be
overridden in your test class.
* *providerName:* Returns the name of the API provider that Pact will mock
* *consumerName:* Returns the name of the API consumer that we are testing.
* *createFragment:* Returns the PactFragment containing the interactions that the test setup using the
ConsumerPactBuilder DSL
* *runTest:* The actual test run. It receives the URL to the mock server as a parameter.
Here is an example:
```java
import au.com.dius.pact.consumer.dsl.PactDslWithProvider;
import au.com.dius.pact.consumer.exampleclients.ConsumerClient;
import au.com.dius.pact.consumer.ConsumerPactTest;
import au.com.dius.pact.model.PactFragment;
import org.junit.Assert;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import static org.junit.Assert.assertEquals;
public class ExampleJavaConsumerPactTest extends ConsumerPactTestMk2 {
@Override
protected RequestResponsePact createFragment(PactDslWithProvider builder) {
Map<String, String> headers = new HashMap<String, String>();
headers.put("testreqheader", "testreqheadervalue");
return builder
.given("test state") // NOTE: Using provider states are optional, you can leave it out
.uponReceiving("ExampleJavaConsumerPactTest test interaction")
.path("/")
.method("GET")
.headers(headers)
.willRespondWith()
.status(200)
.headers(headers)
.body("{\"responsetest\": true, \"name\": \"harry\"}")
.given("test state 2") // NOTE: Using provider states are optional, you can leave it out
.uponReceiving("ExampleJavaConsumerPactTest second test interaction")
.method("OPTIONS")
.headers(headers)
.path("/second")
.body("")
.willRespondWith()
.status(200)
.headers(headers)
.body("")
.toPact();
}
@Override
protected String providerName() {
return "test_provider";
}
@Override
protected String consumerName() {
return "test_consumer";
}
@Override
protected void runTest(MockServer mockServer) throws IOException {
Assert.assertEquals(new ConsumerClient(mockServer.getUrl()).options("/second"), 200);
Map expectedResponse = new HashMap();
expectedResponse.put("responsetest", true);
expectedResponse.put("name", "harry");
assertEquals(new ConsumerClient(mockServer.getUrl()).getAsMap("/", ""), expectedResponse);
assertEquals(new ConsumerClient(mockServer.getUrl()).options("/second"), 200);
}
}
```
### Using the Pact JUnit Rule
Thanks to [@warmuuh](https://github.com/warmuuh) we have a JUnit rule that simplifies running Pact consumer tests. To use it, create a test class
and then add the rule:
#### 1. Add the Pact Rule to your test class to represent your provider.
```java
@Rule
public PactProviderRuleMk2 mockProvider = new PactProviderRuleMk2("test_provider", "localhost", 8080, this);
```
The hostname and port are optional. If left out, it will default to 127.0.0.1 and a random available port. You can get
the URL and port from the pact provider rule.
#### 2. Annotate a method with Pact that returns a pact fragment for the provider and consumer
```java
@Pact(provider="test_provider", consumer="test_consumer")
public RequestResponsePact createPact(PactDslWithProvider builder) {
return builder
.given("test state")
.uponReceiving("ExampleJavaConsumerPactRuleTest test interaction")
.path("/")
.method("GET")
.willRespondWith()
.status(200)
.body("{\"responsetest\": true}")
.toPact();
}
```
##### Versions 3.0.2/2.2.13+
You can leave the provider name out. It will then use the provider name of the first mock provider found. I.e.,
```java
@Pact(consumer="test_consumer") // will default to the provider name from mockProvider
public RequestResponsePact createFragment(PactDslWithProvider builder) {
return builder
.given("test state")
.uponReceiving("ExampleJavaConsumerPactRuleTest test interaction")
.path("/")
.method("GET")
.willRespondWith()
.status(200)
.body("{\"responsetest\": true}")
.toPact();
}
```
#### 3. Annotate your test method with PactVerification to have it run in the context of the mock server setup with the appropriate pact from step 1 and 2
```java
@Test
@PactVerification("test_provider")
public void runTest() {
Map expectedResponse = new HashMap();
expectedResponse.put("responsetest", true);
assertEquals(new ConsumerClient(mockProvider.getUrl()).get("/"), expectedResponse);
}
```
##### Versions 3.0.2/2.2.13+
You can leave the provider name out. It will then use the provider name of the first mock provider found. I.e.,
```java
@Test
@PactVerification
public void runTest() {
// This will run against mockProvider
Map expectedResponse = new HashMap();
expectedResponse.put("responsetest", true);
assertEquals(new ConsumerClient("http://localhost:8080").get("/"), expectedResponse);
}
```
For an example, have a look at [ExampleJavaConsumerPactRuleTest](src/test/java/au/com/dius/pact/consumer/examples/ExampleJavaConsumerPactRuleTest.java)
### Requiring a test with multiple providers
The Pact Rule can be used to test with multiple providers. Just add a rule to the test class for each provider, and
then include all the providers required in the `@PactVerification` annotation. For an example, look at
[PactMultiProviderTest](src/test/java/au/com/dius/pact/consumer/pactproviderrule/PactMultiProviderTest.java).
Note that if more than one provider fails verification for the same test, you will only receive a failure for one of them.
Also, to have multiple tests in the same test class, the providers must be setup with random ports (i.e. don't specify
a hostname and port). Also, if the provider name is left out of any of the annotations, the first one found will be used
(which may not be the first one defined).
### Requiring the mock server to run with HTTPS [versions 3.2.7/2.4.9+]
From versions 3.2.7/2.4.9+ the mock server can be started running with HTTPS using a self-signed certificate instead of HTTP.
To enable this set the `https` parameter to `true`.
E.g.:
```java
@Rule
public PactProviderRule mockTestProvider = new PactProviderRule("test_provider", "localhost", 8443, true,
PactSpecVersion.V2, this); // ^^^^
```
For an example test doing this, see [PactProviderHttpsTest](src/test/java/au/com/dius/pact/consumer/pactproviderrule/PactProviderHttpsTest.java).
**NOTE:** The provider will start handling HTTPS requests using a self-signed certificate. Most HTTP clients will not accept
connections to a self-signed server as the certificate is untrusted. You may need to enable insecure HTTPS with your client
for this test to work. For an example of how to enable insecure HTTPS client connections with Apache Http Client, have a
look at [InsecureHttpsRequest](src/test/java/org/apache/http/client/fluent/InsecureHttpsRequest.java).
### Requiring the mock server to run with HTTPS with a keystore [versions 3.4.1+]
From versions 3.4.1+ the mock server can be started running with HTTPS using a keystore.
To enable this set the `https` parameter to `true`, set the keystore path/file, and the keystore's password.
E.g.:
```java
@Rule
public PactProviderRule mockTestProvider = new PactProviderRule("test_provider", "localhost", 8443, true,
"/path/to/your/keystore.jks", "your-keystore-password", PactSpecVersion.V2, this);
```
For an example test doing this, see [PactProviderHttpsKeystoreTest](src/test/java/au/com/dius/pact/consumer/pactproviderrule/PactProviderHttpsKeystoreTest.java).
### Setting default expected request and response values [versions 3.5.10+]
If you have a lot of tests that may share some values (like headers), you can setup default values that will be applied
to all the expected requests and responses for the tests. To do this, you need to create a method that takes single
parameter of the appropriate type (`PactDslRequestWithoutPath` or `PactDslResponse`) and annotate it with the default
marker annotation (`@DefaultRequestValues` or `@DefaultResponseValues`).
For example:
```java
@DefaultRequestValues
public void defaultRequestValues(PactDslRequestWithoutPath request) {
Map<String, String> headers = new HashMap<String, String>();
headers.put("testreqheader", "testreqheadervalue");
request.headers(headers);
}
@DefaultResponseValues
public void defaultResponseValues(PactDslResponse response) {
Map<String, String> headers = new HashMap<String, String>();
headers.put("testresheader", "testresheadervalue");
response.headers(headers);
}
```
For an example test that uses these, have a look at [PactProviderWithMultipleFragmentsTest](src/test/java/au/com/dius/pact/consumer/pactproviderrule/PactProviderWithMultipleFragmentsTest.java)
### Note on HTTP clients and persistent connections
Some HTTP clients may keep the connection open, based on the live connections settings or if they use a connection cache. This could
cause your tests to fail if the client you are testing lives longer than an individual test, as the mock server will be started
and shutdown for each test. This will result in the HTTP client connection cache having invalid connections. For an example of this where
the there was a failure for every second test, see [Issue #342](https://github.com/DiUS/pact-jvm/issues/342).
### Using the Pact DSL directly
Sometimes it is not convenient to use the ConsumerPactTest as it only allows one test per test class. The DSL can be
used directly in this case.
Example:
```java
import au.com.dius.pact.consumer.ConsumerPactBuilder;
import au.com.dius.pact.consumer.PactVerificationResult;
import au.com.dius.pact.consumer.exampleclients.ProviderClient;
import au.com.dius.pact.model.MockProviderConfig;
import au.com.dius.pact.model.RequestResponsePact;
import org.junit.Test;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import static au.com.dius.pact.consumer.ConsumerPactRunnerKt.runConsumerTest;
import static org.junit.Assert.assertEquals;
/**
* Sometimes it is not convenient to use the ConsumerPactTest as it only allows one test per test class.
* The DSL can be used directly in this case.
*/
public class DirectDSLConsumerPactTest {
@Test
public void testPact() {
RequestResponsePact pact = ConsumerPactBuilder
.consumer("Some Consumer")
.hasPactWith("Some Provider")
.uponReceiving("a request to say Hello")
.path("/hello")
.method("POST")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
.toPact();
MockProviderConfig config = MockProviderConfig.createDefault();
PactVerificationResult result = runConsumerTest(pact, config, mockServer -> {
Map expectedResponse = new HashMap();
expectedResponse.put("hello", "harry");
try {
assertEquals(new ProviderClient(mockServer.getUrl()).hello("{\"name\": \"harry\"}"),
expectedResponse);
} catch (IOException e) {
throw new RuntimeException(e);
}
});
if (result instanceof PactVerificationResult.Error) {
throw new RuntimeException(((PactVerificationResult.Error)result).getError());
}
assertEquals(PactVerificationResult.Ok.INSTANCE, result);
}
}
```
### The Pact JUnit DSL
The DSL has the following pattern:
```java
.consumer("Some Consumer")
.hasPactWith("Some Provider")
.given("a certain state on the provider")
.uponReceiving("a request for something")
.path("/hello")
.method("POST")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
.uponReceiving("another request for something")
.path("/hello")
.method("POST")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
.
.
.
.toPact()
```
You can define as many interactions as required. Each interaction starts with `uponReceiving` followed by `willRespondWith`.
The test state setup with `given` is a mechanism to describe what the state of the provider should be in before the provider
is verified. It is only recorded in the consumer tests and used by the provider verification tasks.
### Building JSON bodies with PactDslJsonBody DSL
**NOTE:** If you are using Java 8, there is [an updated DSL for consumer tests](../pact-jvm-consumer-java8).
The body method of the ConsumerPactBuilder can accept a PactDslJsonBody, which can construct a JSON body as well as
define regex and type matchers.
For example:
```java
PactDslJsonBody body = new PactDslJsonBody()
.stringType("name")
.booleanType("happy")
.hexValue("hexCode")
.id()
.ipAddress("localAddress")
.numberValue("age", 100)
.timestamp();
```
#### DSL Matching methods
The following matching methods are provided with the DSL. In most cases, they take an optional value parameter which
will be used to generate example values (i.e. when returning a mock response). If no example value is given, a random
one will be generated.
| method | description |
|--------|-------------|
| string, stringValue | Match a string value (using string equality) |
| number, numberValue | Match a number value (using Number.equals)\* |
| booleanValue | Match a boolean value (using equality) |
| stringType | Will match all Strings |
| numberType | Will match all numbers\* |
| integerType | Will match all numbers that are integers (both ints and longs)\* |
| decimalType | Will match all real numbers (floating point and decimal)\* |
| booleanType | Will match all boolean values (true and false) |
| stringMatcher | Will match strings using the provided regular expression |
| timestamp | Will match string containing timestamps. If a timestamp format is not given, will match an ISO timestamp format |
| date | Will match string containing dates. If a date format is not given, will match an ISO date format |
| time | Will match string containing times. If a time format is not given, will match an ISO time format |
| ipAddress | Will match string containing IP4 formatted address. |
| id | Will match all numbers by type |
| hexValue | Will match all hexadecimal encoded strings |
| uuid | Will match strings containing UUIDs |
| includesStr | Will match strings containing the provided string |
| equalsTo | Will match using equals |
| matchUrl | Defines a matcher for URLs, given the base URL path and a sequence of path fragments. The path fragments could be strings or regular expression matchers |
_\* Note:_ JSON only supports double precision floating point values. Depending on the language implementation, they
may parsed as integer, floating point or decimal numbers.
#### Ensuring all items in a list match an example (2.2.0+)
Lots of the time you might not know the number of items that will be in a list, but you want to ensure that the list
has a minimum or maximum size and that each item in the list matches a given example. You can do this with the `arrayLike`,
`minArrayLike` and `maxArrayLike` functions.
| function | description |
|----------|-------------|
| `eachLike` | Ensure that each item in the list matches the provided example |
| `maxArrayLike` | Ensure that each item in the list matches the provided example and the list is no bigger than the provided max |
| `minArrayLike` | Ensure that each item in the list matches the provided example and the list is no smaller than the provided min |
For example:
```java
DslPart body = new PactDslJsonBody()
.minArrayLike("users", 1)
.id()
.stringType("name")
.closeObject()
.closeArray();
```
This will ensure that the users list is never empty and that each user has an identifier that is a number and a name that is a string.
__Version 3.2.4/2.4.6+__ You can specify the number of example items to generate in the array. The default is 1.
```java
DslPart body = new PactDslJsonBody()
.minArrayLike("users", 1, 2)
.id()
.stringType("name")
.closeObject()
.closeArray();
```
This will generate the example body with 2 items in the users list.
#### Root level arrays that match all items (version 2.2.11+)
If the root of the body is an array, you can create PactDslJsonArray classes with the following methods:
| function | description |
|----------|-------------|
| `arrayEachLike` | Ensure that each item in the list matches the provided example |
| `arrayMinLike` | Ensure that each item in the list matches the provided example and the list is no bigger than the provided max |
| `arrayMaxLike` | Ensure that each item in the list matches the provided example and the list is no smaller than the provided min |
For example:
```java
PactDslJsonArray.arrayEachLike()
.date("clearedDate", "mm/dd/yyyy", date)
.stringType("status", "STATUS")
.decimalType("amount", 100.0)
.closeObject()
```
This will then match a body like:
```json
[ {
"clearedDate" : "07/22/2015",
"status" : "C",
"amount" : 15.0
}, {
"clearedDate" : "07/22/2015",
"status" : "C",
"amount" : 15.0
}, {
"clearedDate" : "07/22/2015",
"status" : "C",
"amount" : 15.0
} ]
```
__Version 3.2.4/2.4.6+__ You can specify the number of example items to generate in the array. The default is 1.
#### Matching JSON values at the root (Version 3.2.2/2.4.3+)
For cases where you are expecting basic JSON values (strings, numbers, booleans and null) at the root level of the body
and need to use matchers, you can use the `PactDslJsonRootValue` class. It has all the DSL matching methods for basic
values that you can use.
For example:
```java
.consumer("Some Consumer")
.hasPactWith("Some Provider")
.uponReceiving("a request for a basic JSON value")
.path("/hello")
.willRespondWith()
.status(200)
.body(PactDslJsonRootValue.integerType())
```
#### Matching any key in a map (3.3.1/2.5.0+)
The DSL has been extended for cases where the keys in a map are IDs. For an example of this, see
[#313](https://github.com/DiUS/pact-jvm/issues/313). In this case you can use the `eachKeyLike` method, which takes an
example key as a parameter.
For example:
```java
DslPart body = new PactDslJsonBody()
.object("one")
.eachKeyLike("001", PactDslJsonRootValue.id(12345L)) // key like an id mapped to a matcher
.closeObject()
.object("two")
.eachKeyLike("001-A") // key like an id where the value is matched by the following example
.stringType("description", "Some Description")
.closeObject()
.closeObject()
.object("three")
.eachKeyMappedToAnArrayLike("001") // key like an id mapped to an array where each item is matched by the following example
.id("someId", 23456L)
.closeObject()
.closeArray()
.closeObject();
```
For an example, have a look at [WildcardKeysTest](src/test/java/au/com/dius/pact/consumer/WildcardKeysTest.java).
**NOTE:** The `eachKeyLike` method adds a `*` to the matching path, so the matching definition will be applied to all keys
of the map if there is not a more specific matcher defined for a particular key. Having more than one `eachKeyLike` condition
applied to a map will result in only one being applied when the pact is verified (probably the last).
**Further Note: From version 3.5.22 onwards pacts with wildcards applied to map keys will require the Java system property
"pact.matching.wildcard" set to value "true" when the pact file is verified.**
#### Combining matching rules with AND/OR
Matching rules can be combined with AND/OR. There are two methods available on the DSL for this. For example:
```java
DslPart body = new PactDslJsonBody()
.numberValue("valueA", 100)
.and("valueB","AB", PM.includesStr("A"), PM.includesStr("B")) // Must match both matching rules
.or("valueC", null, PM.date(), PM.nullValue()) // will match either a valid date or a null value
```
The `and` and `or` methods take a variable number of matchers (varargs).
### Matching on paths (version 2.1.5+)
You can use regular expressions to match incoming requests. The DSL has a `matchPath` method for this. You can provide
a real path as a second value to use when generating requests, and if you leave it out it will generate a random one
from the regular expression.
For example:
```java
.given("test state")
.uponReceiving("a test interaction")
.matchPath("/transaction/[0-9]+") // or .matchPath("/transaction/[0-9]+", "/transaction/1234567890")
.method("POST")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
```
### Matching on headers (version 2.2.2+)
You can use regular expressions to match request and response headers. The DSL has a `matchHeader` method for this. You can provide
an example header value to use when generating requests and responses, and if you leave it out it will generate a random one
from the regular expression.
For example:
```java
.given("test state")
.uponReceiving("a test interaction")
.path("/hello")
.method("POST")
.matchHeader("testreqheader", "test.*value")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
.matchHeader("Location", ".*/hello/[0-9]+", "/hello/1234")
```
### Matching on query parameters (version 3.3.7+)
You can use regular expressions to match request query parameters. The DSL has a `matchQuery` method for this. You can provide
an example value to use when generating requests, and if you leave it out it will generate a random one
from the regular expression.
For example:
```java
.given("test state")
.uponReceiving("a test interaction")
.path("/hello")
.method("POST")
.matchQuery("a", "\\d+", "100")
.matchQuery("b", "[A-Z]", "X")
.body("{\"name\": \"harry\"}")
.willRespondWith()
.status(200)
.body("{\"hello\": \"harry\"}")
```
## Debugging pact failures
When the test runs, Pact will start a mock provider that will listen for requests and match them against the expectations
you setup in `createFragment`. If the request does not match, it will return a 500 error response.
Each request received and the generated response is logged using [SLF4J](http://www.slf4j.org/). Just enable debug level
logging for au.com.dius.pact.consumer.UnfilteredMockProvider. Most failures tend to be mismatched headers or bodies.
## Changing the directory pact files are written to (2.1.9+)
By default, pact files are written to `target/pacts`, but this can be overwritten with the `pact.rootDir` system property.
This property needs to be set on the test JVM as most build tools will fork a new JVM to run the tests.
For Gradle, add this to your build.gradle:
```groovy
test {
systemProperties['pact.rootDir'] = "$buildDir/pacts"
}
```
For maven, use the systemPropertyVariables configuration:
```xml
<project>
[...]
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.18</version>
<configuration>
<systemPropertyVariables>
<pact.rootDir>some/other/directory</pact.rootDir>
<buildDirectory>${project.build.directory}</buildDirectory>
[...]
</systemPropertyVariables>
</configuration>
</plugin>
</plugins>
</build>
[...]
</project>
```
For SBT:
```scala
fork in Test := true,
javaOptions in Test := Seq("-Dpact.rootDir=some/other/directory")
```
# Publishing your pact files to a pact broker
If you use Gradle, you can use the [pact Gradle plugin](https://github.com/DiUS/pact-jvm/tree/master/pact-jvm-provider-gradle#publishing-pact-files-to-a-pact-broker) to publish your pact files.
# Pact Specification V3
Version 3 of the pact specification changes the format of pact files in the following ways:
* Query parameters are stored in a map form and are un-encoded (see [#66](https://github.com/DiUS/pact-jvm/issues/66)
and [#97](https://github.com/DiUS/pact-jvm/issues/97) for information on what this can cause).
* Introduces a new message pact format for testing interactions via a message queue.
* Multiple provider states can be defined with data parameters.
## Generating V2 spec pact files (3.1.0+, 2.3.0+)
To have your consumer tests generate V2 format pacts, you can set the specification version to V2. If you're using the
`ConsumerPactTest` base class, you can override the `getSpecificationVersion` method. For example:
```java
@Override
protected PactSpecVersion getSpecificationVersion() {
return PactSpecVersion.V2;
}
```
If you are using the `PactProviderRuleMk2`, you can pass the version into the constructor for the rule.
```java
@Rule
public PactProviderRuleMk2 mockTestProvider = new PactProviderRuleMk2("test_provider", PactSpecVersion.V2, this);
```
## Consumer test for a message consumer
For testing a consumer of messages from a message queue, the `MessagePactProviderRule` rule class works in much the
same way as the `PactProviderRule` class for Request-Response interactions, but will generate a V3 format message pact file.
For an example, look at [ExampleMessageConsumerTest](https://github.com/DiUS/pact-jvm/blob/master/pact-jvm-consumer-junit%2Fsrc%2Ftest%2Fjava%2Fau%2Fcom%2Fdius%2Fpact%2Fconsumer%2Fv3%2FExampleMessageConsumerTest.java)
Group: au.com.dius Artifact: pact-jvm-consumer-junit_2.11
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Artifact pact-jvm-consumer-junit_2.11
Group au.com.dius
Version 3.5.24
Last update 04. November 2018
Organization not specified
URL https://github.com/DiUS/pact-jvm
License Apache 2
Dependencies amount 12
Dependencies kotlin-stdlib-jdk8, kotlin-reflect, slf4j-api, groovy-all, kotlin-logging, scala-library, scala-logging_2.11, pact-jvm-consumer_2.11, junit, json, commons-lang3, guava,
There are maybe transitive dependencies!
Group au.com.dius
Version 3.5.24
Last update 04. November 2018
Organization not specified
URL https://github.com/DiUS/pact-jvm
License Apache 2
Dependencies amount 12
Dependencies kotlin-stdlib-jdk8, kotlin-reflect, slf4j-api, groovy-all, kotlin-logging, scala-library, scala-logging_2.11, pact-jvm-consumer_2.11, junit, json, commons-lang3, guava,
There are maybe transitive dependencies!
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