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How to use mergeListener method of io.kotest.engine.interceptors.EngineContext class

Best Kotest code snippet using io.kotest.engine.interceptors.EngineContext.mergeListener

SpecInitializationErrorTest.kt

Source:SpecInitializationErrorTest.kt

...34         override fun executionStarted(testDescriptor: TestDescriptor?) {}35         override fun dynamicTestRegistered(testDescriptor: TestDescriptor?) {}36      }37      val listener = JUnitTestEngineListener(engineListener, root)38      val executor = SpecExecutor(NoopCoroutineDispatcherFactory, EngineContext(ProjectConfiguration()).mergeListener(listener))39      executor.execute(SpecRef.Reference(SpecWithFieldError::class))40      finished.toMap() shouldBe mapOf(41         "SpecInstantiationException" to TestExecutionResult.Status.FAILED,42         "com.sksamuel.kotest.runner.junit5.SpecWithFieldError" to TestExecutionResult.Status.FAILED43      )44   }45   test("an error in a class initializer should fail spec") {46      val root = KotestEngineDescriptor(47         UniqueId.forEngine("kotest"),48         emptyList(),49         emptyList(),50         emptyList(),51         null,52      )53      val finished = mutableMapOf<String, TestExecutionResult.Status>()54      val engineListener = object : EngineExecutionListener {55         override fun executionFinished(testDescriptor: TestDescriptor, testExecutionResult: TestExecutionResult) {56            finished[testDescriptor.displayName] = testExecutionResult.status57         }58         override fun reportingEntryPublished(testDescriptor: TestDescriptor?, entry: ReportEntry?) {}59         override fun executionSkipped(testDescriptor: TestDescriptor?, reason: String?) {}60         override fun executionStarted(testDescriptor: TestDescriptor?) {}61         override fun dynamicTestRegistered(testDescriptor: TestDescriptor?) {}62      }63      val listener = JUnitTestEngineListener(engineListener, root)64      val executor = SpecExecutor(NoopCoroutineDispatcherFactory, EngineContext(ProjectConfiguration()).mergeListener(listener))65      executor.execute(SpecRef.Reference(SpecWithInitError::class))66      finished.toMap() shouldBe mapOf(67         "SpecInstantiationException" to TestExecutionResult.Status.FAILED,68         "com.sksamuel.kotest.runner.junit5.SpecWithInitError" to TestExecutionResult.Status.FAILED,69      )70   }71})72private class SpecWithFieldError : FunSpec() {73   private val err = "failme".apply { error("foo") }74   init {75      test("foo") {76      }77   }78}...

ConcurrentTestSuiteScheduler.kt

Source:ConcurrentTestSuiteScheduler.kt

...55               if (context.configuration.projectWideFailFast && collector.errors) {56                  context.listener.specIgnored(ref.kclass, null)57               } else {58                  try {59                     val executor = SpecExecutor(coroutineDispatcherFactory, context.mergeListener(collector))60                     logger.log { Pair(ref.kclass.bestName(), "Executing ref") }61                     executor.execute(ref)62                  } catch (t: Throwable) {63                     logger.log { Pair(ref.kclass.bestName(), "Unhandled error during spec execution $t") }64                     throw t65                  }66               }67            }68            logger.log { Pair(ref.kclass.bestName(), "Released permit") }69         }70      }71   }72}...

EngineInterceptor.kt

Source:EngineInterceptor.kt

...35   }36   /**37    * Returns this [EngineContext] with the given [listener] added via a [CompositeTestEngineListener].38    */39   fun mergeListener(listener: TestEngineListener): EngineContext {40      return EngineContext(suite, CompositeTestEngineListener(listOf(this.listener, listener)), tags, configuration)41   }42   fun withTestSuite(suite: TestSuite): EngineContext {43      return EngineContext(suite, listener, tags, configuration)44   }45   fun withListener(listener: TestEngineListener): EngineContext {46      return EngineContext(suite, listener, tags, configuration)47   }48   fun withConfiguration(c: ProjectConfiguration): EngineContext {49      return EngineContext(suite, listener, tags, c)50   }51   fun withTags(tags: TagExpression): EngineContext {52      return EngineContext(suite, listener, tags, configuration)53   }...

TestEngineStartedFinishedInterceptorTest.kt

Source:TestEngineStartedFinishedInterceptorTest.kt

...16            fired += "a"17         }18      }19      TestEngineStartedFinishedInterceptor.intercept(20         EngineContext.empty.mergeListener(listener)21      ) {22         fired += "b"23         EngineResult.empty24      }25      fired.shouldBe("ab")26   }27   test("should invoke engineFinished after downstream") {28      var fired = ""29      val listener = object : AbstractTestEngineListener() {30         override suspend fun engineFinished(t: List<Throwable>) {31            fired += "a"32         }33      }34      TestEngineStartedFinishedInterceptor.intercept(35         EngineContext.empty.mergeListener(listener)36      ) {37         fired += "b"38         EngineResult(listOf(Exception("foo")))39      }40      fired.shouldBe("ba")41   }42   test("should invoke engineFinished with errors") {43      var errors = emptyList<Throwable>()44      val listener = object : AbstractTestEngineListener() {45         override suspend fun engineFinished(t: List<Throwable>) {46            errors = t47         }48      }49      TestEngineStartedFinishedInterceptor.intercept(50         EngineContext.empty.mergeListener(listener)51      ) { EngineResult(listOf(Exception("foo"))) }52      errors.shouldHaveSize(1)53   }54})...

TestSuiteScheduler.kt

Source:TestSuiteScheduler.kt

...33         try {34            if (context.configuration.projectWideFailFast && collector.errors) {35               context.listener.specIgnored(it.kclass, null)36            } else {37               val executor = SpecExecutor(NoopCoroutineDispatcherFactory, context.mergeListener(collector))38               executor.execute(it)39            }40         } catch (e:Throwable) {41            println(e)42            errors.add(e)43         }44      }45      return EngineResult(errors.toList())46   }47}...

WriteFailuresInterceptor.kt

Source:WriteFailuresInterceptor.kt

...21      execute: suspend (EngineContext) -> EngineResult22   ): EngineResult {23      return if (context.configuration.writeSpecFailureFile) {24         val collector = CollectingTestEngineListener()25         val result = execute(context.mergeListener(collector))26         val failedSpecs = collector.tests27            .filterValues { it.isErrorOrFailure }28            .map { it.key.spec::class }29            .toSet()30         writeSpecFailures(failedSpecs, context.configuration.specFailureFilePath)31         result32      } else {33         execute(context)34      }35   }36   private fun writeSpecFailures(failures: Set<KClass<out Spec>>, filename: String) {37      val path = Paths.get(filename).toAbsolutePath()38      path.parent.toFile().mkdirs()39      val content = failures.distinct().joinToString("\n") { it.java.canonicalName }...

EmptyTestSuiteInterceptor.kt

Source:EmptyTestSuiteInterceptor.kt

...15   ): EngineResult {16      return when (context.configuration.failOnEmptyTestSuite) {17         true -> {18            val collector = CollectingTestEngineListener()19            val result = execute(context.mergeListener(collector))20            when {21               collector.tests.isEmpty() -> EngineResult(result.errors + EmptyTestSuiteException)22               else -> result23            }24         }25         false -> execute(context)26      }27   }28}29/**30 * Exception used to indicate that the engine had no specs to execute.31 */32object EmptyTestSuiteException : Exception("No specs were available to test")...

TestEngineInitializeInterceptorTest.kt

Source:TestEngineInitializeInterceptorTest.kt

...13            fired = true14         }15      }16      TestEngineInitializedInterceptor.intercept(17         EngineContext.empty.mergeListener(listener)18      ) { EngineResult.empty }19      fired.shouldBeTrue()20   }21})...

mergeListener

Using AI Code Generation

1fun   EngineContext . mergeListener ( listener :  TestEngineListener )   {2this . listener   =   object   :  TestEngineListener  {3override   fun   engineStarted ( specs :  List < Spec > )   {4listener . engineStarted ( specs )5this .@ mergeListener . listener . engineStarted ( specs )6}7override   fun   engineFinished ( t :  List < Throwable > )   {8listener . engineFinished ( t )9this .@ mergeListener . listener . engineFinished ( t )10}11override   fun   specStarted ( spec :  Spec )   {12listener . specStarted ( spec )13this .@ mergeListener . listener . specStarted ( spec )14}15override   fun   specFinished ( spec :  Spec ,  results :  Map < TestCase ,  TestResult > )   {16listener . specFinished ( spec ,  results )17this .@ mergeListener . listener . specFinished ( spec ,  results )18}19override   fun   testStarted ( testCase :  TestCase )   {20listener . testStarted ( testCase )21this .@ mergeListener . listener . testStarted ( testCase )22}23override   fun   testFinished ( testCase :  TestCase ,  result :  TestResult )   {24listener . testFinished ( testCase ,  result )25this .@ mergeListener . listener . testFinished ( testCase ,  result )26}27}28}29}30val  engineContext  =   EngineContext ( listener ,  specs ,  configuration ,  coroutineDispatcherFactory )31engineContext . mergeListener ( object   :  TestEngineListener  {32override   fun   engineStarted ( specs :  List < Spec > )   {33println ( "Engine started" )34}35override   fun   engineFinished ( t :  List < Throwable > )   {36println ( "Engine finished" )37}38override   fun   specStarted ( spec :  Spec )   {39println ( "Spec started" )40}41override   fun   specFinished ( spec :  Spec ,  results :  Map < TestCase ,  TestResult > )   {42println ( "Spec finished" )43}44override   fun   testStarted ( testCase :  TestCase )   {45println ( "Test started" )46}47override   fun   testFinished ( testCase :  TestCase ,  result :  TestResult )   {48println ( "Test finished" )

mergeListener

Using AI Code Generation

1val engineContext = EngineContext ( engineListener , engineContext . configuration ) val engineListener = engineContext . mergeListener ( myCustomListener ) val engineContext = EngineContext ( engineListener , engineContext . configuration )2val specContext = SpecContext ( spec , specListener , specContext . configuration ) val specListener = specContext . mergeListener ( myCustomListener ) val specContext = SpecContext ( spec , specListener , specContext . configuration )3val testCaseContext = TestCaseContext ( testCase , testCaseListener , testCaseContext . configuration ) val testCaseListener = testCaseContext . mergeListener ( myCustomListener ) val testCaseContext = TestCaseContext ( testCase , testCaseListener , testCaseContext . configuration )4val testContext = TestContext ( test , testListener , testContext . configuration ) val testListener = testContext . mergeListener ( myCustomListener ) val testContext = TestContext ( test , testListener , testContext . configuration )5val testScopeContext = TestScopeContext ( testScope , testScopeListener , testScopeContext . configuration ) val testScopeListener = testScopeContext . mergeListener ( myCustomListener ) val testScopeContext = TestScopeContext ( testScope , testScopeListener , testScopeContext . configuration )6val testContext = TestContext ( test , testListener , testContext . configuration ) val testListener = testContext . mergeListener ( myCustomListener ) val testContext = TestContext ( test , testListener , testContext . configuration )7val testScopeContext = TestScopeContext ( testScope , testScopeListener , testScopeContext . configuration ) val testScopeListener = testScopeContext . mergeListener ( myCustomListener ) val testScopeContext = TestScopeContext ( testScope , testScopeListener , testScopeContext . configuration )8val testContext = TestContext (

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