How to use interceptors class of io.kotest.engine.test.interceptors package

Best Kotest code snippet using io.kotest.engine.test.interceptors.interceptors

TestEngine.kt

Source:TestEngine.kt

...5import io.kotest.common.platform6import io.kotest.core.TagExpression7import io.kotest.core.config.ProjectConfiguration8import io.kotest.core.project.TestSuite9import io.kotest.engine.interceptors.EngineContext10import io.kotest.engine.interceptors.EngineInterceptor11import io.kotest.engine.listener.TestEngineListener12import io.kotest.engine.tags.runtimeTags13import io.kotest.mpp.Logger14data class EngineResult(val errors: List<Throwable>) {15   companion object {16      val empty = EngineResult(emptyList())17   }18   fun addError(t: Throwable): EngineResult {19      return EngineResult(errors + t)20   }21}22@KotestInternal23data class TestEngineConfig(24   val listener: TestEngineListener,25   val interceptors: List<EngineInterceptor>,26   val configuration: ProjectConfiguration,27   val explicitTags: TagExpression?,28)29/**30 * Multiplatform Kotest Test Engine.31 */32@KotestInternal33class TestEngine(private val config: TestEngineConfig) {34   private val logger = Logger(this::class)35   /**36    * Starts execution of the given [TestSuite], intercepting calls via [EngineInterceptor]s.37    *38    * It is recommended that this method is not invoked, but instead the engine39    * is launched via the [TestEngineLauncher].40    */41   @OptIn(KotestInternal::class, ExperimentalKotest::class)42   internal suspend fun execute(suite: TestSuite): EngineResult {43      logger.log { Pair(null, "Executing test suite with ${suite.specs.size} specs") }44      val innerExecute: suspend (EngineContext) -> EngineResult = { context ->45         val scheduler = when (platform) {46            Platform.JVM -> ConcurrentTestSuiteScheduler(47               config.configuration.concurrentSpecs ?: config.configuration.parallelism,48               context,49            )50            Platform.JS -> SequentialTestSuiteScheduler(context)51            Platform.Native -> SequentialTestSuiteScheduler(context)52         }53         scheduler.schedule(context.suite)54      }55      logger.log { Pair(null, "${config.interceptors.size} engine interceptors") }56      val execute = config.interceptors.foldRight(innerExecute) { extension, next ->57         { context -> extension.intercept(context, next) }58      }59      val tags = config.configuration.runtimeTags()60      logger.log { Pair(null, "TestEngine: Active tags: ${tags.expression}") }61      return execute(EngineContext(suite, config.listener, tags, config.configuration))62   }63}...

EmptyTestSuiteInterceptorTest.kt

Source:EmptyTestSuiteInterceptorTest.kt

1package com.sksamuel.kotest.engine.interceptors2import io.kotest.common.ExperimentalKotest3import io.kotest.common.KotestInternal4import io.kotest.core.config.ProjectConfiguration5import io.kotest.core.descriptors.append6import io.kotest.core.descriptors.toDescriptor7import io.kotest.core.names.TestName8import io.kotest.core.source.sourceRef9import io.kotest.core.spec.style.FunSpec10import io.kotest.core.test.TestCase11import io.kotest.core.test.TestResult12import io.kotest.core.test.TestType13import io.kotest.engine.EngineResult14import io.kotest.engine.interceptors.EmptyTestSuiteException15import io.kotest.engine.interceptors.EmptyTestSuiteInterceptor16import io.kotest.engine.interceptors.EngineContext17import io.kotest.matchers.collections.shouldHaveSize18import kotlin.time.Duration19@ExperimentalKotest20@KotestInternal21class EmptyTestSuiteInterceptorTest : FunSpec() {22   init {23      test("should error on empty test suite") {24         val conf = ProjectConfiguration()25         conf.failOnEmptyTestSuite = true26         val result =27            EmptyTestSuiteInterceptor.intercept(EngineContext.empty.withConfiguration(conf)) { EngineResult.empty }28         result.errors.filterIsInstance<EmptyTestSuiteException>().shouldHaveSize(1)29      }30      test("should not error on non empty test suite") {...

TestEngineStartedFinishedInterceptorTest.kt

Source:TestEngineStartedFinishedInterceptorTest.kt

1package com.sksamuel.kotest.engine.interceptors2import io.kotest.common.KotestInternal3import io.kotest.core.spec.style.FunSpec4import io.kotest.engine.EngineResult5import io.kotest.engine.interceptors.EngineContext6import io.kotest.engine.interceptors.TestEngineStartedFinishedInterceptor7import io.kotest.engine.listener.AbstractTestEngineListener8import io.kotest.matchers.collections.shouldHaveSize9import io.kotest.matchers.shouldBe10@KotestInternal11class TestEngineStartedFinishedInterceptorTest : FunSpec({12   test("should invoke engineStarted before downstream") {13      var fired = ""14      val listener = object : AbstractTestEngineListener() {15         override suspend fun engineStarted() {16            fired += "a"17         }18      }19      TestEngineStartedFinishedInterceptor.intercept(20         EngineContext.empty.mergeListener(listener)...

SpecSortEngineInterceptorTest.kt

Source:SpecSortEngineInterceptorTest.kt

1package com.sksamuel.kotest.engine.interceptors2import com.sksamuel.kotest.engine.active.BangDisableFunSpec3import com.sksamuel.kotest.engine.active.FocusTest4import com.sksamuel.kotest.engine.active.IgnoredTestsTest5import io.kotest.core.annotation.Isolate6import io.kotest.core.config.ProjectConfiguration7import io.kotest.core.project.TestSuite8import io.kotest.core.spec.SpecExecutionOrder9import io.kotest.core.spec.SpecRef10import io.kotest.core.spec.style.FunSpec11import io.kotest.engine.EngineResult12import io.kotest.engine.interceptors.EngineContext13import io.kotest.engine.interceptors.SpecSortEngineInterceptor14import io.kotest.matchers.shouldBe15@Isolate16class SpecSortEngineInterceptorTest : FunSpec({17   test("should sort classes") {18      val c = ProjectConfiguration()19      c.specExecutionOrder = SpecExecutionOrder.Lexicographic20      var sorted = emptyList<SpecRef>()21      SpecSortEngineInterceptor.intercept(22         EngineContext.empty.withConfiguration(c).withTestSuite(23            TestSuite(24               listOf(25                  SpecRef.Reference(IgnoredTestsTest::class),26                  SpecRef.Reference(BangDisableFunSpec::class),27                  SpecRef.Reference(FocusTest::class),...

ProjectTimeoutEngineInterceptorTest.kt

Source:ProjectTimeoutEngineInterceptorTest.kt

1package com.sksamuel.kotest.engine.interceptors2import io.kotest.core.config.ProjectConfiguration3import io.kotest.core.spec.style.FunSpec4import io.kotest.engine.EngineResult5import io.kotest.engine.interceptors.EngineContext6import io.kotest.engine.interceptors.ProjectTimeoutEngineInterceptor7import io.kotest.engine.interceptors.ProjectTimeoutException8import io.kotest.matchers.shouldBe9import io.kotest.matchers.types.shouldBeInstanceOf10import kotlinx.coroutines.delay11import kotlin.time.Duration.Companion.milliseconds12class ProjectTimeoutEngineInterceptorTest : FunSpec({13   test("should return ProjectTimeoutException when project times out") {14      val c = ProjectConfiguration()15      c.projectTimeout = 1.milliseconds16      val result = ProjectTimeoutEngineInterceptor.intercept(EngineContext.empty.withConfiguration(c)) {17         delay(1000)18         EngineResult.empty19      }20      result.errors.size shouldBe 121      result.errors.first().shouldBeInstanceOf<ProjectTimeoutException>()...

interceptors.kt

Source:interceptors.kt

1package io.kotest.engine2import io.kotest.common.KotestInternal3import io.kotest.engine.interceptors.DumpConfigInterceptor4import io.kotest.engine.interceptors.EmptyTestSuiteInterceptor5import io.kotest.engine.interceptors.EngineInterceptor6import io.kotest.engine.interceptors.KotestPropertiesInterceptor7import io.kotest.engine.interceptors.ProjectExtensionEngineInterceptor8import io.kotest.engine.interceptors.ProjectListenerEngineInterceptor9import io.kotest.engine.interceptors.ProjectTimeoutEngineInterceptor10import io.kotest.engine.interceptors.SpecSortEngineInterceptor11import io.kotest.engine.interceptors.TestDslStateInterceptor12import io.kotest.engine.interceptors.TestEngineInitializedInterceptor13import io.kotest.engine.interceptors.TestEngineStartedFinishedInterceptor14import io.kotest.engine.interceptors.WriteFailuresInterceptor15@KotestInternal16actual fun testEngineInterceptors(): List<EngineInterceptor> {17   return listOfNotNull(18      TestEngineStartedFinishedInterceptor,19      KotestPropertiesInterceptor,20      TestDslStateInterceptor,21      SpecSortEngineInterceptor,22      ProjectExtensionEngineInterceptor,23      ProjectListenerEngineInterceptor,24      ProjectTimeoutEngineInterceptor,25      EmptyTestSuiteInterceptor,26      WriteFailuresInterceptor,27      DumpConfigInterceptor,28      TestEngineInitializedInterceptor,...

TestEngineInterceptors.kt

Source:TestEngineInterceptors.kt

1package io.kotest.engine2import io.kotest.common.KotestInternal3import io.kotest.engine.interceptors.EmptyTestSuiteInterceptor4import io.kotest.engine.interceptors.EngineInterceptor5import io.kotest.engine.interceptors.ProjectExtensionEngineInterceptor6import io.kotest.engine.interceptors.ProjectListenerEngineInterceptor7import io.kotest.engine.interceptors.ProjectTimeoutEngineInterceptor8import io.kotest.engine.interceptors.SpecSortEngineInterceptor9import io.kotest.engine.interceptors.TestDslStateInterceptor10import io.kotest.engine.interceptors.TestEngineInitializedInterceptor11import io.kotest.engine.interceptors.TestEngineStartedFinishedInterceptor12@KotestInternal13internal actual fun testEngineInterceptors(): List<EngineInterceptor> {14   return listOfNotNull(15      TestEngineStartedFinishedInterceptor,16      ProjectTimeoutEngineInterceptor,17      TestDslStateInterceptor,18      SpecSortEngineInterceptor,19      ProjectExtensionEngineInterceptor,20      ProjectListenerEngineInterceptor,21      EmptyTestSuiteInterceptor,22      TestEngineInitializedInterceptor,23   )24}...

TestEngineInitializeInterceptorTest.kt

Source:TestEngineInitializeInterceptorTest.kt

1package com.sksamuel.kotest.engine.interceptors2import io.kotest.core.spec.style.FunSpec3import io.kotest.engine.EngineResult4import io.kotest.engine.interceptors.EngineContext5import io.kotest.engine.interceptors.TestEngineInitializedInterceptor6import io.kotest.engine.listener.AbstractTestEngineListener7import io.kotest.matchers.booleans.shouldBeTrue8class TestEngineInitializeInterceptorTest : FunSpec({9   test("should invoke initialize") {10      var fired = false11      val listener = object : AbstractTestEngineListener() {12         override suspend fun engineInitialized(context: EngineContext) {13            fired = true14         }15      }16      TestEngineInitializedInterceptor.intercept(17         EngineContext.empty.mergeListener(listener)18      ) { EngineResult.empty }19      fired.shouldBeTrue()...

interceptors

Using AI Code Generation

1class MyEngineInterceptor : EngineInterceptor {2   override suspend fun intercept(3      execute: suspend (EngineContext) -> EngineResult4   ): EngineResult {5      val result = execute(context)6   }7}8class MyTestInterceptor : TestInterceptor {9   override suspend fun intercept(10      execute: suspend (TestContext) -> TestResult11   ): TestResult {12      val result = execute(context)13   }14}15class MySpecInterceptor : SpecInterceptor {16   override suspend fun intercept(17      execute: suspend (SpecContext) -> SpecResult18   ): SpecResult {19      val result = execute(context)20   }21}22class MyProjectInterceptor : ProjectInterceptor {23   override suspend fun intercept(24      execute: suspend (ProjectContext) -> ProjectResult25   ): ProjectResult {26      val result = execute(context)27   }28}29class MyTestEngineListener : TestEngineListener {30   override suspend fun engineStarted(t: List<Spec>) {31   }32   override suspend fun engineFinished(t: List<Spec>, results: Map<Spec, Result>) {33   }34}35class MySpecEngineListener : SpecEngineListener {36   override suspend fun specStarted(kclass: KClass<out Spec>) {37   }38   override suspend fun specFinished(kclass: KClass<out Spec>, result: Result) {39   }40}41class MyTestEngineListener : TestEngineListener {42   override suspend fun engineStarted(t: List<Spec>) {43   }44   override suspend fun engineFinished(t: List<Spec>, results: Map<Spec, Result>) {45   }46}47class MySpecEngineListener : SpecEngineListener {48   override suspend fun specStarted(kclass: KClass<out Spec>) {49   }50   override suspend fun specFinished(kclass: KClass<out Spec>, result: Result) {51   }52}53class MySpecStartedListener : SpecStartedListener {

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