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org.scalatest.concurrent

AsyncTimeLimitedTests

trait AsyncTimeLimitedTests extends AsyncTestSuiteMixin with TimeLimits

Trait that when mixed into an asynchronous suite class establishes a time limit for its tests.

This trait overrides withFixture, wrapping a super.withFixture(test) call in a failAfter invocation, specifying a timeout obtained by invoking timeLimit:

failAfter(timeLimit) {
  super.withFixture(test)
}

Note that the failAfter method executes the body of the by-name passed to it using the same thread that invoked failAfter. This means that the calling of withFixture method will be run using the same thread, but the test body may be run using a different thread, depending on the executionContext set at the AsyncTestSuite level.

The timeLimit field is abstract in this trait. Thus you must specify a time limit when you use it. For example, the following code specifies that each test must complete within 200 milliseconds:

import org.scalatest.AsyncFunSpec
import org.scalatest.concurrent.AsyncTimeLimitedTests
import org.scalatest.time.SpanSugar._

class ExampleSpec extends AsyncFunSpec with AsyncTimeLimitedTests {

  // Note: You may need to either write 200.millis or (200 millis), or
  // place a semicolon or blank line after plain old 200 millis, to
  // avoid the semicolon inference problems of postfix operator notation.
  val timeLimit = 200 millis

  describe("An asynchronous time-limited test") {
    it("should succeed if it completes within the time limit") {
      Thread.sleep(100)
      succeed
    }
    it("should fail if it is taking too darn long") {
      Thread.sleep(300)
      succeed
    }
  }
}

If you run the above ExampleSpec, the second test will fail with the error message:

The test did not complete within the specified 200 millisecond time limit.

Different from TimeLimitedTests, AsyncTimeLimitedTests does not support Interruptor for now.

Self Type
AsyncTimeLimitedTests with AsyncTestSuite
Source
AsyncTimeLimitedTests.scala
Linear Supertypes
TimeLimits, AsyncTestSuiteMixin, SuiteMixin, AnyRef, Any
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  1. AsyncTimeLimitedTests
  2. TimeLimits
  3. AsyncTestSuiteMixin
  4. SuiteMixin
  5. AnyRef
  6. Any
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Abstract Value Members

  1. abstract def expectedTestCount(filter: Filter): Int

    The total number of tests that are expected to run when this Suite's run method is invoked.

    The total number of tests that are expected to run when this Suite's run method is invoked.

    filter

    a Filter with which to filter tests to count based on their tags

    Definition Classes
    SuiteMixin
  2. abstract def nestedSuites: IndexedSeq[Suite]

    An immutable IndexedSeq of this SuiteMixin object's nested Suites.

    An immutable IndexedSeq of this SuiteMixin object's nested Suites. If this SuiteMixin contains no nested Suites, this method returns an empty IndexedSeq.

    Definition Classes
    SuiteMixin
  3. abstract def rerunner: Option[String]

    The fully qualified name of the class that can be used to rerun this suite.

    The fully qualified name of the class that can be used to rerun this suite.

    Definition Classes
    SuiteMixin
  4. abstract def run(testName: Option[String], args: Args): Status

    Runs this suite of tests.

    Runs this suite of tests.

    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 Suite.

    args

    the Args for this run

    returns

    a Status object that indicates when all tests and nested suites started by this method have completed, and whether or not a failure occurred.

    Definition Classes
    SuiteMixin
    Exceptions thrown

    NullArgumentException if any passed parameter is null.

  5. abstract val styleName: String

    This suite's style name.

    This suite's style name.

    This lifecycle method provides a string that is used to determine whether this suite object's style is one of the chosen styles for the project.

    Definition Classes
    SuiteMixin
  6. abstract def suiteId: String

    A string ID for this Suite that is intended to be unique among all suites reported during a run.

    A string ID for this Suite that is intended to be unique among all suites reported during a run.

    The suite ID is intended to be unique, because ScalaTest does not enforce that it is unique. If it is not unique, then you may not be able to uniquely identify a particular test of a particular suite. This ability is used, for example, to dynamically tag tests as having failed in the previous run when rerunning only failed tests.

    returns

    this Suite object's ID.

    Definition Classes
    SuiteMixin
  7. abstract def suiteName: String

    A user-friendly suite name for this Suite.

    A user-friendly suite name for this Suite.

    This trait's implementation of this method returns the simple name of this object's class. This trait's implementation of runNestedSuites calls this method to obtain a name for Reports to pass to the suiteStarting, suiteCompleted, and suiteAborted methods of the Reporter.

    returns

    this Suite object's suite name.

    Definition Classes
    SuiteMixin
  8. abstract def tags: Map[String, Set[String]]

    A Map whose keys are String names of tagged tests and whose associated values are the Set of tag names for the test.

    A Map whose keys are String names of tagged tests and whose associated values are the Set of tag names for the test. If a test has no associated tags, its name does not appear as a key in the returned Map. If this Suite contains no tests with tags, this method returns an empty Map.

    Subclasses may override this method to define and/or discover tags in a custom manner, but overriding method implementations should never return an empty Set as a value. If a test has no tags, its name should not appear as a key in the returned Map.

    Definition Classes
    SuiteMixin
  9. abstract def testDataFor(testName: String, theConfigMap: ConfigMap): TestData

    Provides a TestData instance for the passed test name, given the passed config map.

    Provides a TestData instance for the passed test name, given the passed config map.

    This method is used to obtain a TestData instance to pass to withFixture(NoArgTest) and withFixture(OneArgTest) and the beforeEach and afterEach methods of trait BeforeAndAfterEach.

    testName

    the name of the test for which to return a TestData instance

    theConfigMap

    the config map to include in the returned TestData

    returns

    a TestData instance for the specified test, which includes the specified config map

    Definition Classes
    SuiteMixin
  10. abstract def testNames: Set[String]

    A Set of test names.

    A Set of test names. If this Suite contains no tests, this method returns an empty Set.

    Although subclass and subtrait implementations of this method may return a Set whose iterator produces String test names in a well-defined order, the contract of this method does not required a defined order. Subclasses are free to implement this method and return test names in either a defined or undefined order.

    Definition Classes
    SuiteMixin
  11. abstract def timeLimit: Span

    The time limit, in Span, in which each test in a AsyncTestSuite that mixes in AsyncTimeLimitedTests must complete.

    The time limit, in Span, in which each test in a AsyncTestSuite that mixes in AsyncTimeLimitedTests must complete.

Concrete Value Members

  1. def cancelAfter[T](timeout: Span)(fun: ⇒ T)(implicit signaler: Signaler, prettifier: Prettifier = implicitly[Prettifier], pos: Position = implicitly[source.Position], timed: Timed[T] = implicitly[Timed[T]]): T

    Executes the passed function, enforcing the passed time limit by attempting to signal the operation if the time limit is exceeded, and "canceling" if the time limit has been exceeded after the function completes, where what it means to "cancel" is determined by the implicitly passed Timed[T] instance.

    Executes the passed function, enforcing the passed time limit by attempting to signal the operation if the time limit is exceeded, and "canceling" if the time limit has been exceeded after the function completes, where what it means to "cancel" is determined by the implicitly passed Timed[T] instance.

    The Timed companion object offers three implicits, one for FutureOutcome, one for Future[U] and one for any other type. The implicit Timed[FutureOutcome] defines cancelation as canceling the FutureOutcome: no exception will be thrown. The implicit Timed[Future[U]] defines canceling as failing the Future[U] with a TestCanceledException: no exception will be thrown. The implicit for any other type defines failure as throwing TestCanceledException. For the details, see the Scaladoc of the implicit Timed providers in the Timed companion object.

    timeout

    the maximimum amount of time allowed for the passed operation

    signaler

    a strategy for signaling the passed operation

    prettifier

    a Prettifier for prettifying error messages

    pos

    the Position of the caller site

    timed

    the Timed type class that provides the behavior implementation of the timing restriction.

    Definition Classes
    TimeLimits
  2. def failAfter[T](timeout: Span)(fun: ⇒ T)(implicit signaler: Signaler, prettifier: Prettifier = implicitly[Prettifier], pos: Position = implicitly[source.Position], timed: Timed[T] = implicitly[Timed[T]]): T

    Executes the passed function, enforcing the passed time limit by attempting to signal the operation if the time limit is exceeded, and "failing" if the time limit has been exceeded after the function completes, where what it means to "fail" is determined by the implicitly passed Timed[T] instance.

    Executes the passed function, enforcing the passed time limit by attempting to signal the operation if the time limit is exceeded, and "failing" if the time limit has been exceeded after the function completes, where what it means to "fail" is determined by the implicitly passed Timed[T] instance.

    The Timed companion object offers three implicits, one for FutureOutcome, one for Future[U] and one for any other type. The implicit Timed[FutureOutcome] defines failure as failing the FutureOutcome with a TestFailedDueToTimeoutException: no exception will be thrown. The implicit Timed[Future[U]] defines failure as failing the Future[U] with a TestFailedDueToTimeoutException: no exception will be thrown. The implicit for any other type defines failure as throwing TestFailedDueToTimeoutException. For the details, see the Scaladoc of the implicit Timed providers in the Timed companion object.

    timeout

    the maximimum amount of time allowed for the passed operation

    fun

    the operation on which to enforce the passed timeout

    signaler

    a strategy for signaling the passed operation

    prettifier

    a Prettifier for prettifying error messages

    pos

    the Position of the caller site

    timed

    the Timed type class that provides the behavior implementation of the timing restriction.

    Definition Classes
    TimeLimits
  3. def withFixture(test: (AsyncTimeLimitedTests.this)#NoArgAsyncTest): FutureOutcome

    A stackable implementation of withFixture that wraps a call to super.withFixture in a failAfter invocation.

    A stackable implementation of withFixture that wraps a call to super.withFixture in a failAfter invocation.

    test

    the test on which to enforce a time limit

    Definition Classes
    AsyncTimeLimitedTests → AsyncTestSuiteMixin