org.scalatest.fixture.FreeSpecLike.scala Maven / Gradle / Ivy
/*
* Copyright 2001-2013 Artima, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.scalatest.fixture
import org.scalatest._
import words.{CanVerb, ResultOfAfterWordApplication, ShouldVerb, BehaveWord, MustVerb,
StringVerbBlockRegistration}
import scala.collection.immutable.ListSet
import org.scalatest.exceptions.StackDepthExceptionHelper.getStackDepth
import java.util.concurrent.atomic.AtomicReference
import java.util.ConcurrentModificationException
import org.scalatest.events._
import org.scalatest.Suite.anExceptionThatShouldCauseAnAbort
import org.scalatest.Suite.autoTagClassAnnotations
/**
* Implementation trait for class fixture.FreeSpec, which is
* a sister class to org.scalatest.FreeSpec that can pass a
* fixture object into its tests.
*
*
* fixture.FreeSpec is a class,
* not a trait, to minimize compile time given there is a slight compiler
* overhead to mixing in traits compared to extending classes. If you need
* to mix the behavior of fixture.FreeSpec into some other
* class, you can use this trait instead, because class
* fixture.FreeSpec does nothing more than extend this trait and add a nice toString implementation.
*
*
*
* See the documentation of the class for a detailed
* overview of fixture.FreeSpec.
*
*
* @author Bill Venners
*/
@Finders(Array("org.scalatest.finders.FreeSpecFinder"))
trait FreeSpecLike extends Suite with TestRegistration with Informing with Notifying with Alerting with Documenting { thisSuite =>
private final val engine = new FixtureEngine[FixtureParam]("concurrentFixtureFreeSpecMod", "FixtureFreeSpec")
import engine._
private[scalatest] val sourceFileName = "FreeSpecLike.scala"
/**
* Returns an Informer that during test execution will forward strings passed to its
* apply method to the current reporter. If invoked in a constructor, it
* will register the passed string for forwarding later during test execution. If invoked from inside a scope,
* it will forward the information to the current reporter immediately. If invoked from inside a test function,
* it will record the information and forward it to the current reporter only after the test completed, as recordedEvents
* of the test completed event, such as TestSucceeded. If invoked at any other time, it will print to the standard output.
* This method can be called safely by any thread.
*/
protected def info: Informer = atomicInformer.get
/**
* Returns an Notifier that during test execution will forward strings (and other objects) passed to its
* apply method to the current reporter. If invoked in a constructor, it
* will register the passed string for forwarding later during test execution. If invoked while this
* fixture.FreeSpec is being executed, such as from inside a test function, it will forward the information to
* the current reporter immediately. If invoked at any other time, it will
* print to the standard output. This method can be called safely by any thread.
*/
protected def note: Notifier = atomicNotifier.get
/**
* Returns a Alerter that during test execution will forward strings (and other objects) passed to its
* apply method to the current reporter. If invoked in a constructor, it
* will register the passed string for forwarding later during test execution. If invoked while this
* fixture.FreeSpec is being executed, such as from inside a test function, it will forward the information to
* the current reporter immediately. If invoked at any other time, it will
* print to the standard output. This method can be called safely by any thread.
*/
protected def alert: Alerter = atomicAlerter.get
/**
* Returns a Documenter that during test execution will forward strings passed to its
* apply method to the current reporter. If invoked in a constructor, it
* will register the passed string for forwarding later during test execution. If invoked from inside a scope,
* it will forward the information to the current reporter immediately. If invoked from inside a test function,
* it will record the information and forward it to the current reporter only after the test completed, as recordedEvents
* of the test completed event, such as TestSucceeded. If invoked at any other time, it will print to the standard output.
* This method can be called safely by any thread.
*/
protected def markup: Documenter = atomicDocumenter.get
final def registerTest(testText: String, testTags: Tag*)(testFun: FixtureParam => Any) {
engine.registerTest(testText, Transformer(testFun), "testCannotBeNestedInsideAnotherTest", "FreeSpecLike.scala", "registerTest", 5, -2, None, None, None, testTags: _*)
}
final def registerIgnoredTest(testText: String, testTags: Tag*)(testFun: FixtureParam => Any) {
engine.registerIgnoredTest(testText, Transformer(testFun), "testCannotBeNestedInsideAnotherTest", "FreeSpecLike.scala", "registerIgnoredTest", 4, -3, None, testTags: _*)
}
/**
* Register a test with the given spec text, optional tags, and test function value that takes no arguments.
* An invocation of this method is called an “example.”
*
* This method will register the test for later execution via an invocation of one of the execute
* methods. The name of the test will be a concatenation of the text of all surrounding describers,
* from outside in, and the passed spec text, with one space placed between each item. (See the documenation
* for testNames for an example.) The resulting test name must not have been registered previously on
* this FreeSpec instance.
*
* @param specText the specification text, which will be combined with the descText of any surrounding describers
* to form the test name
* @param testTags the optional list of tags for this test
* @param methodName caller's method name
* @param testFun the test function
* @throws DuplicateTestNameException if a test with the same name has been registered previously
* @throws TestRegistrationClosedException if invoked after run has been invoked on this suite
* @throws NullPointerException if specText or any passed test tag is null
*/
private def registerTestToRun(specText: String, testTags: List[Tag], methodName: String, testFun: FixtureParam => Any) {
engine.registerTest(specText, Transformer(testFun), "inCannotAppearInsideAnotherIn", sourceFileName, methodName, 4, -3, None, None, None, testTags: _*)
}
/**
* Register a test to ignore, which has the given spec text, optional tags, and test function value that takes no arguments.
* This method will register the test for later ignoring via an invocation of one of the execute
* methods. This method exists to make it easy to ignore an existing test by changing the call to it
* to ignore without deleting or commenting out the actual test code. The test will not be executed, but a
* report will be sent that indicates the test was ignored. The name of the test will be a concatenation of the text of all surrounding describers,
* from outside in, and the passed spec text, with one space placed between each item. (See the documenation
* for testNames for an example.) The resulting test name must not have been registered previously on
* this FreeSpec instance.
*
* @param specText the specification text, which will be combined with the descText of any surrounding describers
* to form the test name
* @param testTags the optional list of tags for this test
* @param methodName caller's method name
* @param testFun the test function
* @throws DuplicateTestNameException if a test with the same name has been registered previously
* @throws TestRegistrationClosedException if invoked after run has been invoked on this suite
* @throws NullPointerException if specText or any passed test tag is null
*/
private def registerTestToIgnore(specText: String, testTags: List[Tag], methodName: String, testFun: FixtureParam => Any) {
engine.registerIgnoredTest(specText, Transformer(testFun), "ignoreCannotAppearInsideAnIn", sourceFileName, methodName, 4, -4, None, testTags: _*)
}
/*
private def registerBranch(description: String, childPrefix: Option[String], fun: () => Unit) {
// TODO: Fix the resource name and method name
registerNestedBranch(description, childPrefix, fun(), "describeCannotAppearInsideAnIt", sourceFileName, "describe")
} */
/**
* Class that supports the registration of tagged tests.
*
*
* Instances of this class are returned by the taggedAs method of
* class FreeSpecStringWrapper.
*
*
* @param specText the specification text
* @param tags the list of tags
*
* @author Bill Venners
* @author Chee Seng
*/
protected final class ResultOfTaggedAsInvocationOnString(specText: String, tags: List[Tag]) {
/**
* Supports tagged test registration.
*
*
* For example, this method supports syntax such as the following:
*
*
*
* "complain on peek" taggedAs(SlowTest) in { fixture => ... }
* ^
*
*
*
* For more information and examples of this method's use, see the main documentation for trait FreeSpec.
*
*
* @param testFun the test function
*/
def in(testFun: FixtureParam => Any) {
registerTestToRun(specText, tags, "in", testFun)
}
/**
* Supports tagged test registration, for tests that don't take a fixture.
*
*
* For example, this method supports syntax such as the following:
*
*
*
* "complain on peek" taggedAs(SlowTest) in { () => ... }
* ^
*
*
*
* For more information and examples of this method's use, see the main documentation for trait FreeSpec.
*
*
* @param testFun the test function
*/
def in(testFun: () => Any) {
registerTestToRun(specText, tags, "in", new NoArgTestWrapper(testFun))
}
/**
* Supports registration of tagged, pending tests.
*
*
* For example, this method supports syntax such as the following:
*
*
*
* "complain on peek" taggedAs(SlowTest) is (pending)
* ^
*
*
*
* For more information and examples of this method's use, see the main documentation for trait FreeSpec.
*
*
* @param testFun the test function
*/
def is(testFun: => PendingNothing) {
registerTestToRun(specText, tags, "is", unusedFixtureParam => testFun)
}
/**
* Supports registration of tagged, ignored tests.
*
*
* For example, this method supports syntax such as the following:
*
*
*
* "complain on peek" taggedAs(SlowTest) ignore { fixture => ... }
* ^
*
*
*
* For more information and examples of this method's use, see the main documentation for trait FreeSpec.
*
*
* @param testFun the test function
*/
def ignore(testFun: FixtureParam => Any) {
registerTestToIgnore(specText, tags, "ignore", testFun)
}
/**
* Supports registration of tagged, ignored tests that take no fixture parameter.
*
*
* For example, this method supports syntax such as the following:
*
*
*
* "complain on peek" taggedAs(SlowTest) ignore { () => ... }
* ^
*
*
*
* For more information and examples of this method's use, see the main documentation for trait FreeSpec.
*
*
* @param testFun the test function
*/
def ignore(testFun: () => Any) {
registerTestToIgnore(specText, tags, "ignore", new NoArgTestWrapper(testFun))
}
}
/**
* A class that via an implicit conversion (named convertToFreeSpecStringWrapper) enables
* methods when, that, in, is, taggedAs
* and ignore to be invoked on Strings.
*
*
* This class provides much of the syntax for fixture.FreeSpec, however, it does not add
* the verb methods (should, must, and can) to String.
* Instead, these are added via the ShouldVerb, MustVerb, and CanVerb
* traits, which fixture.FreeSpec mixes in, to avoid a conflict with implicit conversions provided
* in ShouldMatchers and MustMatchers.
*
*
* @param string the string that is wrapped
*
* @author Bill Venners
*/
protected final class FreeSpecStringWrapper(string: String) {
/**
* Register some text that may surround one or more tests. Thepassed function value may contain surrounding text
* registrations (defined with dash (-)) and/or tests (defined with in). This trait's
* implementation of this method will register the text (passed to the contructor of FreeSpecStringWrapper
* and immediately invoke the passed function.
*/
def - (fun: => Unit) {
registerNestedBranch(string, None, fun, "dashCannotAppearInsideAnIn", sourceFileName, "-", 3, -2, None)
}
/**
* Supports test registration.
*
*
* For example, this method supports syntax such as the following:
*
*
*
* "complain on peek" in { fixture => ... }
* ^
*
*
*
* For more information and examples of this method's use, see the main documentation for trait FreeSpec.
*
*
* @param testFun the test function
*/
def in(testFun: FixtureParam => Any) {
registerTestToRun(string, List(), "in", testFun)
}
/**
* Supports registration of tests that take no fixture.
*
*
* For example, this method supports syntax such as the following:
*
*
*
* "complain on peek" in { () => ... }
* ^
*
*
*
* For more information and examples of this method's use, see the main documentation for trait FreeSpec.
*
*
* @param testFun the test function
*/
def in(testFun: () => Any) {
registerTestToRun(string, List(), "in", new NoArgTestWrapper(testFun))
}
/**
* Supports pending test registration.
*
*
* For example, this method supports syntax such as the following:
*
*
*
* "complain on peek" is (pending)
* ^
*
*
*
* For more information and examples of this method's use, see the main documentation for trait FreeSpec.
*
*
* @param testFun the test function
*/
def is(testFun: => PendingNothing) {
registerTestToRun(string, List(), "is", unusedFixtureParam => testFun)
}
/**
* Supports ignored test registration.
*
*
* For example, this method supports syntax such as the following:
*
*
*
* "complain on peek" ignore { fixture => ... }
* ^
*
*
*
* For more information and examples of this method's use, see the main documentation for trait FreeSpec.
*
*
* @param testFun the test function
*/
def ignore(testFun: FixtureParam => Any) {
registerTestToIgnore(string, List(), "ignore", testFun)
}
/**
* Supports registration of ignored tests that take no fixture.
*
*
* For example, this method supports syntax such as the following:
*
*
*
* "complain on peek" ignore { () => ... }
* ^
*
*
*
* For more information and examples of this method's use, see the main documentation for trait FreeSpec.
*
*
* @param testFun the test function
*/
def ignore(testFun: () => Any) {
registerTestToIgnore(string, List(), "ignore", new NoArgTestWrapper(testFun))
}
/**
* Supports tagged test registration.
*
*
* For example, this method supports syntax such as the following:
*
*
*
* "complain on peek" taggedAs(SlowTest) in { fixture => ... }
* ^
*
*
*
* For more information and examples of this method's use, see the main documentation for trait FreeSpec.
*
*
* @param firstTestTag the first mandatory test tag
* @param otherTestTags the others additional test tags
*/
def taggedAs(firstTestTag: Tag, otherTestTags: Tag*) = {
val tagList = firstTestTag :: otherTestTags.toList
new ResultOfTaggedAsInvocationOnString(string, tagList)
}
}
import scala.language.implicitConversions
/**
* Implicitly converts Strings to FreeSpecStringWrapper, which enables
* methods when, that, in, is, taggedAs
* and ignore to be invoked on Strings.
*/
protected implicit def convertToFreeSpecStringWrapper(s: String) = new FreeSpecStringWrapper(s)
/**
* A Map whose keys are String tag names to which tests in this FreeSpec belong, and values
* the Set of test names that belong to each tag. If this FreeSpec contains no tags, this method returns an empty Map.
*
*
* This trait's implementation returns tags that were passed as strings contained in Tag objects passed to
* methods test and ignore.
*
*
*
* In addition, this trait's implementation will also auto-tag tests with class level annotations.
* For example, if you annotate @Ignore at the class level, all test methods in the class will be auto-annotated with @Ignore.
*
*/
override def tags: Map[String, Set[String]] = autoTagClassAnnotations(atomic.get.tagsMap, this)
/**
* Run a test. This trait's implementation runs the test registered with the name specified by
* testName. Each test's name is a concatenation of the text of all describers surrounding a test,
* from outside in, and the test's spec text, with one space placed between each item. (See the documenation
* for testNames for an example.)
*
* @param testName the name of one test to execute.
* @param args the Args for this run
* @return a Status object that indicates when the test started by this method has completed, and whether or not it failed .
* @throws NullPointerException if testName or is null.
*/
protected override def runTest(testName: String, args: Args): Status = {
def invokeWithFixture(theTest: TestLeaf): Outcome = {
theTest.testFun match {
case transformer: org.scalatest.fixture.Transformer[_] =>
transformer.exceptionalTestFun match {
case wrapper: NoArgTestWrapper[_] =>
withFixture(new FixturelessTestFunAndConfigMap(testName, wrapper.test, args.configMap))
case fun => withFixture(new TestFunAndConfigMap(testName, fun, args.configMap))
}
case other =>
other match {
case wrapper: NoArgTestWrapper[_] =>
withFixture(new FixturelessTestFunAndConfigMap(testName, wrapper.test, args.configMap))
case fun => withFixture(new TestFunAndConfigMap(testName, fun, args.configMap))
}
}
}
runTestImpl(thisSuite, testName, args, true, invokeWithFixture)
}
/**
*
* Run zero to many of this FreeSpec's tests.
*
*
*
* This method takes a testName parameter that optionally specifies a test to invoke.
* If testName is Some, this trait's implementation of this method
* invokes runTest on this object with passed args.
*
*
*
* This method takes an args that contains a Set of tag names that should be included (tagsToInclude), and a Set
* that should be excluded (tagsToExclude), when deciding which of this Suite's tests to execute.
* If tagsToInclude is empty, all tests will be executed
* except those those belonging to tags listed in the tagsToExclude Set. If tagsToInclude is non-empty, only tests
* belonging to tags mentioned in tagsToInclude, and not mentioned in tagsToExclude
* will be executed. However, if testName is Some, tagsToInclude and tagsToExclude are essentially ignored.
* Only if testName is None will tagsToInclude and tagsToExclude be consulted to
* determine which of the tests named in the testNames Set should be run. For more information on trait tags, see the main documentation for this trait.
*
*
*
* If testName is None, this trait's implementation of this method
* invokes testNames on this Suite to get a Set of names of tests to potentially execute.
* (A testNames value of None essentially acts as a wildcard that means all tests in
* this Suite that are selected by tagsToInclude and tagsToExclude should be executed.)
* For each test in the testName Set, in the order
* they appear in the iterator obtained by invoking the elements method on the Set, this trait's implementation
* of this method checks whether the test should be run based on the tagsToInclude and tagsToExclude Sets.
* If so, this implementation invokes runTest via passed in args.
*
*
* @param testName an optional name of one test to execute. If None, all relevant tests should be executed.
* I.e., None acts like a wildcard that means execute all relevant tests in this fixture.FreeSpec.
* @param args the Args for this run
* @return a Status object that indicates when all tests started by this method have completed, and whether or not a failure occurred.
* @throws NullPointerException if testName or args is null.
*/
protected override def runTests(testName: Option[String], args: Args): Status = {
runTestsImpl(thisSuite, testName, args, info, true, runTest)
}
/**
* An immutable Set of test names. If this fixture.FreeSpec contains no tests, this method returns an
* empty Set.
*
*
* This trait's implementation of this method will return a set that contains the names of all registered tests. The set's
* iterator will return those names in the order in which the tests were registered. Each test's name is composed
* of the concatenation of the text of each surrounding describer, in order from outside in, and the text of the
* example itself, with all components separated by a space.
*
*
* @return the Set of test names
*/
override def testNames: Set[String] = {
// I'm returning a ListSet here so that they tests will be run in registration order
ListSet(atomic.get.testNamesList.toArray: _*)
}
override def run(testName: Option[String], args: Args): Status = {
runImpl(thisSuite, testName, args, super.run)
}
/**
* Supports shared test registration in fixture.FreeSpecs.
*
*
* This field enables syntax such as the following:
*
*
*
* behave like nonFullStack(stackWithOneItem)
* ^
*
*
*
* For more information and examples of the use of behave
FreeSpec.
*
*/
protected val behave = new BehaveWord
/**
* Suite style name.
*
* @return org.scalatest.fixture.FreeSpec
*/
final override val styleName: String = "org.scalatest.fixture.FreeSpec"
override def testDataFor(testName: String, theConfigMap: ConfigMap = ConfigMap.empty): TestData = createTestDataFor(testName, theConfigMap, this)
}