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Pact provider ============= sub project of https://github.com/DiUS/pact-jvm The pact provider is responsible for verifying that an API provider adheres to a number of pacts authored by its clients This library provides the basic tools required to automate the process, and should be usable on its own in many instances. Framework and build tool specific bindings will be provided in separate libraries that build on top of this core functionality. ### Provider State Before each interaction is executed, the provider under test will have the opportunity to enter a state. Generally the state maps to a set of fixture data for mocking out services that the provider is a consumer of (they will have their own pacts) The pact framework will instruct the test server to enter that state by sending: POST "${config.stateChangeUrl.url}/setup" { "state" : "${interaction.stateName}" } ### An example of running provider verification with junit This example uses Groovy, JUnit 4 and Hamcrest matchers to run the provider verification. As the provider service is a DropWizard application, it uses the DropwizardAppRule to startup the service before running any test. **Warning:** It only grabs the first interaction from the pact file with the consumer, where there could be many. (This could possibly be solved with a parameterized test) ```groovy class ReadmeExamplePactJVMProviderJUnitTest { @ClassRule public static final TestRule startServiceRule = new DropwizardAppRule<DropwizardConfiguration>( TestDropwizardApplication, ResourceHelpers.resourceFilePath('dropwizard/test-config.yaml')) private static ProviderInfo serviceProvider private static Pact<RequestResponseInteraction> testConsumerPact private static ConsumerInfo consumer @BeforeClass static void setupProvider() { serviceProvider = new ProviderInfo('Dropwizard App') serviceProvider.setProtocol('http') serviceProvider.setHost('localhost') serviceProvider.setPort(8080) serviceProvider.setPath('/') consumer = new ConsumerInfo() consumer.setName('test_consumer') consumer.setPactSource(new UrlSource( ReadmeExamplePactJVMProviderJUnitTest.getResource('/pacts/zoo_app-animal_service.json').toString())) testConsumerPact = DefaultPactReader.INSTANCE.loadPact(consumer.getPactSource()) as Pact<RequestResponseInteraction> } @Test void runConsumerPacts() { // grab the first interaction from the pact with consumer Interaction interaction = testConsumerPact.interactions.get(0) // setup the verifier ProviderVerifier verifier = setupVerifier(interaction, serviceProvider, consumer) // setup any provider state // setup the client and interaction to fire against the provider ProviderClient client = new ProviderClient(serviceProvider, new HttpClientFactory()) Map<String, Object> failures = new HashMap<>() verifier.verifyResponseFromProvider(serviceProvider, interaction, interaction.getDescription(), failures, client) // normally assert all good, but in this example it will fail assertThat(failures, is(not(empty()))) verifier.displayFailures(failures) } private ProviderVerifier setupVerifier(Interaction interaction, ProviderInfo provider, ConsumerInfo consumer) { ProviderVerifier verifier = new ProviderVerifier() verifier.initialiseReporters(provider) verifier.reportVerificationForConsumer(consumer, provider, new UrlSource('http://example.example')) if (!interaction.getProviderStates().isEmpty()) { for (ProviderState providerState: interaction.getProviderStates()) { verifier.reportStateForInteraction(providerState.getName(), provider, consumer, true) } } verifier.reportInteractionDescription(interaction) return verifier } } ``` ### An example of running provider verification with spock This example uses groovy and spock to run the provider verification. Again the provider service is a DropWizard application, and is using the DropwizardAppRule to startup the service. This example runs all interactions using spocks Unroll feature ```groovy class ReadmeExamplePactJVMProviderSpockSpec extends Specification { @ClassRule @Shared TestRule startServiceRule = new DropwizardAppRule<DropwizardConfiguration>(TestDropwizardApplication, ResourceHelpers.resourceFilePath('dropwizard/test-config.yaml')) @Shared ProviderInfo serviceProvider ProviderVerifier verifier def setupSpec() { serviceProvider = new ProviderInfo('Dropwizard App') serviceProvider.protocol = 'http' serviceProvider.host = 'localhost' serviceProvider.port = 8080 serviceProvider.path = '/' serviceProvider.hasPactWith('zoo_app') { consumer -> consumer.pactSource = new FileSource(new File(ResourceHelpers.resourceFilePath('pacts/zoo_app-animal_service.json'))) } } def setup() { verifier = new ProviderVerifier() } def cleanup() { // cleanup provider state // ie. db.truncateAllTables() } def cleanupSpec() { // cleanup provider } @Unroll def "Provider Pact - With Consumer #consumer"() { expect: !verifyConsumerPact(consumer).empty where: consumer << serviceProvider.consumers } private Map verifyConsumerPact(ConsumerInfo consumer) { Map failures = [:] verifier.initialiseReporters(serviceProvider) verifier.runVerificationForConsumer(failures, serviceProvider, consumer) if (!failures.empty) { verifier.displayFailures(failures) } failures } } ```

Files of the artifact pact-jvm-provider version 4.0.5 from the group au.com.dius.

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Artifact pact-jvm-provider
Group au.com.dius
Version 4.0.5
Last update 26. January 2020
Tags: cleanup using getdescription assertthat dropwizard setpath feature quot dropwizardconfiguration static host setport under possibly number grabs project each automate resourcefilepath yaml parameterized serviceprovider before data readmeexamplepactjvmproviderjunittest resourcehelpers instances running executed setupspec could reportinteractiondescription https fire getpactsource string library assert getname runs public libraries beforeclass dropwizardapprule client tool good consumer localhost setname testdropwizardapplication basic instance requestresponseinteraction shared haspactwith that isempty hamcrest against reportstateforinteraction getresource example grab providerverifier testrule bindings matchers tostring testconsumerpact readmeexamplepactjvmproviderspockspec mocking startservicerule json setupprovider generally verifyresponsefromprovider interactions httpclientfactory setpactsource functionality protocol separate provides 8080 provider junit statechangeurl there service provided core server pacts github unroll they test verifier initialisereporters expect fail file empty only config final services groovy again interaction spock startup cleanupspec many setupverifier verification http will providerinfo port truncatealltables build providerstate private normally runconsumerpacts displayfailures urlsource failures post responsible loadpact return void true sethost reportverificationforconsumer should framework process sending consumerinfo statename warning pactsource defaultpactreader filesource getproviderstates where tools providerclient authored instruct apos required test_consumer verifyconsumerpact solved extends classrule consumers class enter pact usable this setprotocol fixture adheres verifying specific have state from object setup path application with spocks zoo_app opportunity runverificationforconsumer maps specification uses animal_service hashmap their first dius clients
Organization not specified
URL https://github.com/DiUS/pact-jvm
License Apache 2
Dependencies amount 8
Dependencies commons-io, jansi, httpclient, pact-jvm-core-model, pact-jvm-core-pact-broker, pact-jvm-core-matchers, pact-jvm-core-support, arrow-core-extensions,
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