sealed trait Status extends AnyRef
The result status of running a test or a suite, which is used to support parallel and asynchronous execution of tests.
This trait is the result type of the "run" lifecycle methods of trait Suite:
run, runNestedSuites, runTests, and runTest. It can be used to determine whether
a test or suite has completed, and if so, whether it succeeded, and if not, whether an exception was thrown that was
not yet reported via a ScalaTest event. A Status is like a domain-specific Future[Boolean], where:
- an activity in which no test failed and no suite aborted is represented by
Success(true) - an activity during which at least one test failed or one suite aborted, but all exceptions that occured
were reported by a ScalaTest events (such as
TestFailedException) is represented bySuccess(false) - an activity during which at least one test failed or one suite aborted and at least one exception occurred that was
not reported via a ScalaTest event is represented by
Failure(unreportedException)
Note that pending and canceled tests will not cause a Status to fail. Only failed tests
and aborted suites will cause a Status to fail.
One use case of Status is to ensure that "after" code (such as an afterEach or afterAll method)
does not execute until after the relevant entity (one test, one suite, or all of a suite's tests or nested suites) has completed.
Another use case is to implement the default behavior of asynchronous styles, in which subsequent each test does not begin
execution until after the previous test has completed.
- Self Type
- Status
- Source
- Status.scala
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Abstract Value Members
- abstract def isCompleted(): Boolean
Non-blocking call that indicates whether the entity represented by this
Status(one test, one suite, or all of a suite's tests or nested suites) has completed.Non-blocking call that indicates whether the entity represented by this
Status(one test, one suite, or all of a suite's tests or nested suites) has completed. Because this is non-blocking, you can use this to poll the completion status.Note: this method will not indicate whether a test has failed, suite has aborted, or an unreported exception has been installed. It just indicates whether the
Statushas completed or not by returningtrueorfalse.- returns
trueif the test or suite run is already completed,falseotherwise.
- abstract def succeeds(): Boolean
Blocking call that waits until the entity represented by this
Status(one test, one suite, or all of a suite's tests or nested suites) has completed, then returnstrueif no tests failed and no suites aborted, else returnsfalse, or if an unreported exception has been installed, completes abruptly with that exception.Blocking call that waits until the entity represented by this
Status(one test, one suite, or all of a suite's tests or nested suites) has completed, then returnstrueif no tests failed and no suites aborted, else returnsfalse, or if an unreported exception has been installed, completes abruptly with that exception.This method only reports
falseif there was a failed test or aborted suite in the context of the "run" lifecycle method from which it was returned. For example, if you callsucceedson aStatusreturned byrunTest,succeedswill (after that test has completed) returnfalseif the test whose name was passed torunTestfails, else it will returntrue. In other words, so long as the test doesn't fail —whether the test succeeds, is canceled, or is pending—succeedswill returntrue. If you callsucceedson aStatusreturned byrunTests, by contrast,succeedswill (after the suite's tests have completed) returntrueonly if none of the tests in the suite fail. If any test in the suite fails,succeedswill returnfalse. If you callsucceedson aStatusreturned byrunNestedSuites,succeedswill return true only if no tests fail and no suites abort when running all nested suites (and their nested suites, recursively). Similarly, if you callsucceedson aStatusreturned byrun,succeedswill return true only if no tests fail and no suites abort when running all tests nested suites (and their nested suites, recursively).If this
Statusfails with an "unreported exception," an exception that occurred during the activity represented by thisStatusthat was not reported to theReportervia a ScalaTest event, thesucceedsmethod will complete abruptly with that exception. If the original exception was a run-aborting exception, such asStackOverflowError, theunreportedExceptionmethod will return ajava.util.ExecutionExceptionthat contains the original run-aborting exception as its cause. Thesucceedsmethod will in that case complete abruptly with theExecutionExceptionthat wraps the original run-aborting exception.Note: because blocking is not possible on Scala.js, this method is not available on Scala.js.
- returns
after waiting until completion,
trueif no tests failed and no suites aborted,falseotherwise
- Exceptions thrown
unreportedExceptionif an exception occurred during the activity represented by thisStatusthat was not reported via a ScalaTest event and therefore was installed as an unreported exception on thisStatus.
- abstract def waitUntilCompleted(): Unit
Blocking call that waits until the entity represented by this
Status(one test, one suite, or all of a suite's tests or nested suites) has completed, then either returns normally, or if an unreported exception has been installed, completes abruptly with that unreported exception.Blocking call that waits until the entity represented by this
Status(one test, one suite, or all of a suite's tests or nested suites) has completed, then either returns normally, or if an unreported exception has been installed, completes abruptly with that unreported exception.If this
Statusfails with an "unreported exception," an exception that occurred during the activity represented by thisStatusthat was not reported to theReportervia a ScalaTest event, thewaitUntilCompletedmethod will complete abruptly with that exception. If the original exception was a run-aborting exception, such asStackOverflowError, theunreportedExceptionmethod will return ajava.util.ExecutionExceptionthat contains the original run-aborting exception as its cause. ThewaitUntilCompletedmethod will in that case complete abruptly with theExecutionExceptionthat wraps the original run-aborting exception.Note: because blocking is not possible on Scala.js, this method is not available on Scala.js.
- Exceptions thrown
unreportedExceptionif an exception occurred during the activity represented by thisStatusthat was not reported via a ScalaTest event and therefore was installed as an unreported exception on thisStatus.
- abstract def whenCompleted(callback: (Try[Boolean]) => Unit): Unit
Registers the passed callback function to be executed when this status completes.
Registers the passed callback function to be executed when this status completes.
If an unreported exception has been installed on this
Status, theTrypassed into the callback function will be aFailurecontaining that exception. Otherwise theTrywill be aSuccesscontaining true if no tests failed or suites aborted during the activity represented by thisStatus, elsefalse.The callback functions registered with
whenCompletedwill be executed after theStatushas completed, in an undefined order. If theStatushas already completed, functions passed to this method will be executed immediately by the calling thread before returning.Any exception thrown by a callback function will be propagated back on the thread used to invoke the callback.
Internally ScalaTest uses this method to register callbacks that fire completion events (
TestSucceeded,TestFailed,SuiteCompleted, etc.) to theReporter.- callback
the callback function to execute once this
Statushas completed
Concrete Value Members
- final def !=(arg0: Any): Boolean
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- final def thenRun(f: => Status): Status
Registers a
Status-producing by-name function to execute after thisStatuscompletes, returning aStatusthat mirrors theStatusreturned by the by-name.Registers a
Status-producing by-name function to execute after thisStatuscompletes, returning aStatusthat mirrors theStatusreturned by the by-name.The
Statusreturned by this method will complete when the status produced by theStatusproduced by the passed-by name completes. The returnedStatuswill complete with the samesucceedsandunreportedExceptionvalues. But unlike theStatusproduced by the by-name, the returnedStatuswill be available immediately.If the by-name function passed to this method completes abruptly with a non-run-aborting exception, that exception will be caught and installed as the
unreportedExceptionon theStatusreturned by this method. TheStatusreturned by this method will then complete. The thread that attempted to evaluate the by-name function will be allowed to continue (i.e., the non-run-aborting exception will not be rethrown on that thread).If the by-name function passed to this method completes abruptly with a run-aborting exception, such as
StackOverflowError, that exception will be caught and a newjava.util.concurrent.ExecutionExceptionthat contains the run-aborting exception as its cause will be installed as theunreportedExceptionon theStatusreturned by this method. TheStatusreturned by this method will then complete. The original run-aborting exception will then be rethrown on the thread that attempted to evaluate the by-name function.If an unreported exception is installed on this
Status, the passed by-name function will still be executed.Internally, ScalaTest uses this method in async styles to ensure that by default, each subsequent test in an async-style suite begins execution only after the previous test has completed. This method is not used if
ParallelTestExectionis mixed into an async style. Instead, tests are allowed to begin execution concurrently.- returns
a
Statusthat represents the status of executing the by-name function passed to this method.
- final def toFuture: Future[Boolean]
Converts this
Statusto aFuture[Boolean]whereSuccess(true)means no tests failed and suites aborted,Success(false), means at least one test failed or one suite aborted and any thrown exception was was reported to theReportervia a ScalaTest event,Failure(unreportedException)means an exception,unreportedException, was thrown that was not reported to theReportervia a ScalaTest event.Converts this
Statusto aFuture[Boolean]whereSuccess(true)means no tests failed and suites aborted,Success(false), means at least one test failed or one suite aborted and any thrown exception was was reported to theReportervia a ScalaTest event,Failure(unreportedException)means an exception,unreportedException, was thrown that was not reported to theReportervia a ScalaTest event.- returns
a
Future[Boolean]representing thisStatus.
- def toString(): String
- Definition Classes
- AnyRef → Any
- def unreportedException: Option[Throwable]
An exception that was thrown during the activity represented by this
Statusthat was not reported via a ScalaTest event fired to theReporter.An exception that was thrown during the activity represented by this
Statusthat was not reported via a ScalaTest event fired to theReporter.When a test executes, "non-run-aborting" thrown exceptions are reported by events fired to the reporter. A
TestPendingExceptionis reported via aTestPendingevent. ATestCanceledExceptionis reported via aTestCanceledevent. Any other non-run-aborting exceptions, includingTestFailedExceptionwill be reported via aTestFailedevent.Run-aborting exceptions indicate critical problems, such as
OutOfMemoryError, that instead of being reported via a test completion event should instead cause the entire suite to abort. In synchronous testing styles, this exception will be allowed to just propagate up the call stack. But in async styles, the thread or threads executing the test will often be taken from the async suite's execution context. Instead of propagating these run-aborting exceptions up the call stack, they will be installed as an "unreported exception" in the test'sStatus. They are "unreported" because no test completion event will be fired to report them. For more explanation and a list of run-aborting exception types, see Treatment ofjava.lang.Errors.Another way for an unreported exception to occur is if an exception of any type is thrown outside of the body of an actual test. For example, traits
BeforeAndAfter,BeforeAndAfterEach, andBeforeAndAfterEachTestDataexecute code before and after tests. TraitsBeforeAndAfterAllandBeforeAndAfterAllConfigMapexecute code before and after all tests and nested suites of a suite. If any "before" or "after" code completes abruptly with an exception (of any type, not just run-aborting types) on a thread taken from an async suite's execution context, this exception will installed as anunreportedExceptionof the relevantStatus.In addition, ScalaTest
Suiteexposes four "run" lifecycle methods--run,runNestedSuites,runTests, andrunTest--that users can override to customize the framework. If a "run" lifecycle methods completes abruptly with an exception, that exception occurs outside the context of a test body. As a result, such exceptions will be installed as anunreportedExceptionof the relevantStatus.The
toFuturemethod onStatusreturns aFuture[Boolean]. If theFuturesucceeds with theBooleanvalue oftrue, that indicates no tests failed and no suites aborted during the activity represented by thisStatus. If a test failed or suite aborted, and that event was reported by a fired ScalaTestEvent, theFuturewill succeed with the valuefalse. If an unreported exception has been installed on theStatus, however, theFuturewill fail with that exception.- returns
a optional unreported
Throwable
- final def wait(): Unit
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- final def wait(arg0: Long, arg1: Int): Unit
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- final def wait(arg0: Long): Unit
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- final def withAfterEffect(f: => Unit): Status
Registers a by-name function (producing an optional exception) to execute after this
Statuscompletes.Registers a by-name function (producing an optional exception) to execute after this
Statuscompletes.If the by-name function passed to this method completes abruptly with a non-run-aborting exception, that exception will be caught and installed as the
unreportedExceptionon theStatusreturned by this method. TheStatusreturned by this method will then complete. The thread that attempted to evaluate the by-name function will be allowed to continue (i.e., the non-run-aborting exception will not be rethrown on that thread).If the by-name function passed to this method completes abruptly with a run-aborting exception, such as
StackOverflowError, that exception will be caught and a newjava.util.concurrent.ExecutionExceptionthat contains the run-aborting exception as its cause will be installed as theunreportedExceptionon theStatusreturned by this method. TheStatusreturned by this method will then complete. The original run-aborting exception will then be rethrown on the thread that attempted to evaluate the by-name function.If an unreported exception is installed on this
Status, the passed by-name function will not be executed. Instead, the same unreported exception will be installed on theStatusreturned by this method.Internally, ScalaTest uses this method in traits
BeforeAndAfter,BeforeAndAfterEach, andBeforeAndAfterEachTestDatato ensure "after" code is executed after the relevant test has completed, and in traitsBeforeAndAfterAllandBeforeAndAfterAllConfigMapto ensure "after" code is executed after the relevant tests and nested suites have completed.- f
A by-name function to invoke after this
Statushas completed.- returns
a
Statusthat represents thisStatus, modified by any exception thrown by the passed by-name function.