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How to use addChild method of io.kotest.runner.junit.platform.JUnitTestEngineListener class

Best Kotest code snippet using io.kotest.runner.junit.platform.JUnitTestEngineListener.addChild

JUnitTestEngineListener.kt

Source:JUnitTestEngineListener.kt

...41 *42 * Top level descriptors must have a source attached or the execution will fail with a parent attached exception.43 * Type.CONTAINER_TEST doesn't seem to work as a top level descriptor, it will hang44 * leaf tests do not need to be completed but they will be marked as uncomplete in intellij.45 * Dynamic test can be called after or before addChild.46 * A Type.TEST can be a child of a Type.TEST.47 * Intermediate Type.CONTAINER seem to be ignored in output.48 * Intermediate containers can have same class source as parent.49 * Type.TEST as top level seems to hang.50 * A TEST doesn't seem to be able to have the same source as a parent, or hang.51 * A TEST seems to hang if it has a ClassSource.52 * MethodSource seems to be ok with a TEST.53 * Container test names seem to be taken from a Source.54 * Nested tests are outputted as siblings.55 * Can complete executions out of order.56 * Child failures will fail parent CONTAINER.57 * Sibling containers can start and finish in parallel.58 *59 * Intellij runner observations:60 *61 * Intermediate Type.CONTAINERs are shown.62 * Intermediate Type.TESTs are shown.63 * A Type.TEST can be a child of a Type.TEST64 * MethodSource seems to be ok with a TEST.65 * Container test names seem to be taken from the name property.66 * Nested tests are outputted as nested.67 * Child failures will not fail containing TEST.68 * child failures will fail a containing CONTAINER.69 * Call addChild _before_ registering test otherwise will appear in the display out of order.70 * Must start tests after their parent or they can go missing.71 * Sibling containers can start and finish in parallel.72 */73class JUnitTestEngineListener(74   private val listener: EngineExecutionListener,75   val root: EngineDescriptor,76) : AbstractTestEngineListener() {77   private val logger = Logger(JUnitTestEngineListener::class)78   private var formatter: DisplayNameFormatter = DefaultDisplayNameFormatter(ProjectConfiguration())79   // contains a mapping of junit TestDescriptor's, so we can find previously registered tests80   private val descriptors = mutableMapOf<Descriptor, TestDescriptor>()81   private var started = false82   private val startedTests = mutableSetOf<Descriptor.TestDescriptor>()83   // the root tests are our entry point when outputting results84   private val rootTests = mutableListOf<TestCase>()85   private var failOnIgnoredTests = false86   private val children = mutableMapOf<Descriptor, MutableList<TestCase>>()87   private val results = mutableMapOf<Descriptor, TestResult>()88   private val dummies = hashSetOf<String>()89   override suspend fun engineStarted() {90      logger.log { Pair(null, "Engine started") }91      listener.executionStarted(root)92   }93   override suspend fun engineInitialized(context: EngineContext) {94      failOnIgnoredTests = context.configuration.failOnIgnoredTests95      formatter = getDisplayNameFormatter(context.configuration.registry, context.configuration)96   }97   override suspend fun engineFinished(t: List<Throwable>) {98      logger.log { Pair(null, "Engine finished; throwables=[${t}]") }99      registerExceptionPlaceholders(t)100      val result = if (failOnIgnoredTests && results.values.any { it.isIgnored }) {101         TestExecutionResult.failed(RuntimeException("Build contained ignored test"))102      } else {103         TestExecutionResult.successful()104      }105      logger.log { Pair(null, "Notifying junit that engine completed $root") }106      listener.executionFinished(root, result)107   }108   override suspend fun specStarted(kclass: KClass<*>) {109      markSpecStarted(kclass)110   }111   override suspend fun specFinished(kclass: KClass<*>, result: TestResult) {112      val t = result.errorOrNull113      when {114         // if we have a spec error before we even started the spec, we will start the spec, add a placeholder115         // to hold the error, mark that test as failed, and then fail the spec as well116         t != null && !started -> {117            val descriptor = markSpecStarted(kclass)118            addPlaceholderTest(descriptor, t, kclass)119            logger.log { Pair(kclass.bestName(), "execution failed: $descriptor $t") }120            listener.executionFinished(descriptor, TestExecutionResult.failed(t))121         }122         // if we had an error in the spec, and we had no tests, we'll add the dummy and return123         t != null && rootTests.isEmpty() -> {124            val descriptor = getSpecDescriptor(kclass)125            addPlaceholderTest(descriptor, t, kclass)126            logger.log { Pair(kclass.bestName(), "execution failed: $descriptor $t") }127            listener.executionFinished(descriptor, TestExecutionResult.failed(t))128         }129         else -> {130            val descriptor = getSpecDescriptor(kclass)131            val result = when (t) {132               null -> TestExecutionResult.successful()133               else -> {134                  addPlaceholderTest(descriptor, t, kclass)135                  TestExecutionResult.successful()136               }137            }138            logger.log { Pair(kclass.bestName(), "executionFinished: $descriptor") }139            listener.executionFinished(descriptor, result)140         }141      }142      reset()143   }144   override suspend fun specIgnored(kclass: KClass<*>, reason: String?) {145      logger.log { Pair(kclass.bestName(), "Spec is being flagged as ignored") }146      listener.executionSkipped(getSpecDescriptor(kclass), reason)147   }148   private fun markSpecStarted(kclass: KClass<*>): TestDescriptor {149      return try {150         val descriptor = getSpecDescriptor(root, kclass.toDescriptor(), formatter.format(kclass))151         logger.log { Pair(kclass.bestName(), "Registering dynamic spec $descriptor") }152         listener.dynamicTestRegistered(descriptor)153         logger.log { Pair(kclass.bestName(), "Spec executionStarted $descriptor") }154         listener.executionStarted(descriptor)155         started = true156         descriptor157      } catch (t: Throwable) {158         logger.log { Pair(kclass.bestName(), "Error in JUnit Platform listener $t") }159         throw t160      }161   }162   private fun reset() {163      rootTests.clear()164      children.clear()165      results.clear()166      started = false167      descriptors.clear()168      startedTests.clear()169   }170   private fun addPlaceholderTest(parent: TestDescriptor, t: Throwable, kclass: KClass<*>) {171      val (name, cause) = ExtensionExceptionExtractor.resolve(t)172      val descriptor = createTestDescriptor(173         parent.uniqueId.append(Segment.Test.value, name),174         name,175         TestDescriptor.Type.TEST,176         ClassSource.from(kclass.java),177         false178      )179      parent.addChild(descriptor)180      listener.dynamicTestRegistered(descriptor)181      listener.executionStarted(descriptor)182      listener.executionFinished(descriptor, TestResult.Error(Duration.ZERO, cause).toTestExecutionResult())183   }184   override suspend fun testStarted(testCase: TestCase) {185      // depending on the test type, we may want to wait to notify junit, this is because gradle doesn't work186      // properly with the junit test types. Ideally, we'd just set everything to CONTAINER_AND_TEST, which is187      // supposed to mean a test can contain other tests as well as being a test itself, which is exactly how188      // Kotest views tests, but unfortunately it doesn't work properly.189      //190      // Another approach is to wait until the spec finishes to see which tests contain children and which191      // don't and set the test type appropriately, but junit doesn't give us a way to specify test duration192      // (instead it just calculates it itself from the time between marking a test as started and marking193      // it as finished), so this approach works but ends up having all tests as 0ms194      //195      // So the approach we will take is use the TestType from the test definition, unless it is dynamic,196      // then for dynamic we will calculate it later, and accept the 0ms drawback197      logger.log { Pair(testCase.name.testName, "test started") }198      if (testCase.parent != null) rootTests.add(testCase)199      addChild(testCase)200      when (testCase.type) {201         TestType.Container -> startTestIfNotStarted(testCase, TestDescriptor.Type.CONTAINER)202         TestType.Test -> startTestIfNotStarted(testCase, TestDescriptor.Type.TEST)203         TestType.Dynamic -> Unit204      }205   }206   // this test can be output now it has completed as we have all we need to know to complete it207   override suspend fun testFinished(testCase: TestCase, result: TestResult) {208      logger.log { Pair(testCase.name.testName, "test finished $result") }209      results[testCase.descriptor] = result210      val descriptor = getOrCreateTestDescriptor(testCase, null)211      // we need to ensure all parents have been started first212      startParents(testCase)213      startTestIfNotStarted(testCase, null)214      logger.log { Pair(testCase.name.testName, "executionFinished: $descriptor") }215      listener.executionFinished(descriptor, result.toTestExecutionResult())216   }217   override suspend fun testIgnored(testCase: TestCase, reason: String?) {218      logger.log { Pair(testCase.name.testName, "test ignored $reason") }219      if (testCase.parent == null) rootTests.add(testCase)220      addChild(testCase)221      results[testCase.descriptor] = TestResult.Ignored(reason)222      // we need to ensure all parents have been started first223      startParents(testCase)224      val descriptor = getOrCreateTestDescriptor(testCase, TestDescriptor.Type.TEST)225      logger.log { Pair(testCase.name.testName, "Registering dynamic test: $descriptor") }226      listener.dynamicTestRegistered(descriptor)227      logger.log { Pair(testCase.name.testName, "executionSkipped: $descriptor") }228      listener.executionSkipped(descriptor, reason)229   }230   private fun addChild(testCase: TestCase) {231      children.getOrPut(testCase.descriptor.parent) { mutableListOf() }.add(testCase)232   }233   private fun startParents(testCase: TestCase) {234      val parent = testCase.parent235      if (parent != null) {236         startParents(parent)237         startTestIfNotStarted(parent, null)238      }239   }240   private fun startTestIfNotStarted(testCase: TestCase, type: TestDescriptor.Type?) {241      if (!startedTests.contains(testCase.descriptor)) {242         val descriptor = getOrCreateTestDescriptor(testCase, type)243         logger.log { Pair(testCase.name.testName, "Registering dynamic test: $descriptor") }244         listener.dynamicTestRegistered(descriptor)245         logger.log { Pair(testCase.name.testName, "executionStarted: $descriptor") }246         listener.executionStarted(descriptor)247         startedTests.add(testCase.descriptor)248      }249   }250   private fun getOrCreateTestDescriptor(testCase: TestCase, type: TestDescriptor.Type?): TestDescriptor {251      val existing = descriptors[testCase.descriptor]252      if (existing != null) return existing253      val parent = when (val p = testCase.parent) {254         null -> getSpecDescriptor(testCase.spec::class)255         else -> getOrCreateTestDescriptor(p, null)256      }257      val id = parent.uniqueId.append(testCase.descriptor)258      // we dynamically work out the type if null by looking to see if this test had any children259      val c = children[testCase.descriptor]260      val t = when {261         type != null -> type262         c == null || c.isEmpty() -> TestDescriptor.Type.TEST263         else -> TestDescriptor.Type.CONTAINER264      }265      return createTestDescriptor(266         id,267         formatter.format(testCase),268         t,269         ClassSource.from(testCase.spec::class.java, null), // gradle-junit-platform hides tests if we don't send this270         type == TestDescriptor.Type.CONTAINER271      ).apply {272         parent.addChild(this)273         descriptors[testCase.descriptor] = this274      }275   }276   private fun getSpecDescriptor(kclass: KClass<*>): TestDescriptor {277      return getSpecDescriptor(root, kclass.toDescriptor(), formatter.format(kclass))278   }279   private fun createAndRegisterDummySpec(name: String): TestDescriptor {280      val unique = UniqueNames.unique(name, dummies) { s, k -> "${s}_$k" } ?: name281      dummies.add(unique)282      val descriptor = getSpecDescriptor(root, Descriptor.SpecDescriptor(DescriptorId(unique), this::class), unique)283      listener.dynamicTestRegistered(descriptor)284      return descriptor285   }286   private fun registerExceptionPlaceholders(ts: List<Throwable>) {...

addChild

Using AI Code Generation

1val listener = JUnitTestEngineListener()2val description = Description.createTestDescription("myClass", "myTest")3listener.executionStarted(description)4listener.executionFinished(description, TestExecutionResult.successful())5val listener = JUnitTestEngineListener()6val description = Description.createTestDescription("myClass", "myTest")7listener.executionStarted(description)8listener.executionFinished(description, TestExecutionResult.successful())9val listener = JUnitTestEngineListener()10val description = Description.createTestDescription("myClass", "myTest")11listener.executionStarted(description)12listener.executionFinished(description, TestExecutionResult.successful())13val listener = JUnitTestEngineListener()14val description = Description.createTestDescription("myClass", "myTest")15listener.executionStarted(description)16listener.executionFinished(description, TestExecutionResult.successful())17val listener = JUnitTestEngineListener()18val description = Description.createTestDescription("myClass", "myTest")19listener.executionStarted(description)20listener.executionFinished(description, TestExecutionResult.successful())21val listener = JUnitTestEngineListener()22val description = Description.createTestDescription("myClass", "myTest")23listener.executionStarted(description)24listener.executionFinished(description, TestExecutionResult.successful())25val listener = JUnitTestEngineListener()26val description = Description.createTestDescription("myClass", "myTest")27listener.executionStarted(description)28listener.executionFinished(description, TestExecutionResult.successful())29val listener = JUnitTestEngineListener()30val description = Description.createTestDescription("myClass", "myTest")31listener.executionStarted(description)32listener.executionFinished(description, TestExecutionResult.successful())33val listener = JUnitTestEngineListener()34val description = Description.createTestDescription("myClass", "myTest")

addChild

Using AI Code Generation

1private fun addChild(parent: TestDescriptor, child: TestDescriptor) {2    parent.addChild(child)3    if (child is CompositeTestDescriptor) {4        for (c in child.children) {5            addChild(child, c)6        }7    }8}9override fun execute(request: ExecutionRequest) {10    val engineListener = JUnitTestEngineListener(request.engineExecutionListener)11    engineListener.executionStarted(rootTestDescriptor)12    rootTestDescriptor.execute(engineListener, emptyMap())13    engineListener.executionFinished(rootTestDescriptor, TestExecutionResult.successful())14}15override fun execute(request: ExecutionRequest) {16    val engineListener = JUnitTestEngineListener(request.engineExecutionListener)17    engineListener.executionStarted(rootTestDescriptor)18    rootTestDescriptor.execute(engineListener, emptyMap())19    engineListener.executionFinished(rootTestDescriptor, TestExecutionResult.successful())20}21override fun execute(request: ExecutionRequest) {22    val engineListener = JUnitTestEngineListener(request.engineExecutionListener)23    engineListener.executionStarted(rootTestDescriptor)24    rootTestDescriptor.execute(engineListener, emptyMap())25    engineListener.executionFinished(rootTestDescriptor, TestExecutionResult.successful())26}27override fun execute(request: ExecutionRequest) {28    val engineListener = JUnitTestEngineListener(request.engineExecutionListener)29    engineListener.executionStarted(rootTestDescriptor)30    rootTestDescriptor.execute(engineListener, emptyMap())31    engineListener.executionFinished(rootTestDescriptor, TestExecutionResult.successful())32}33override fun execute(request: ExecutionRequest) {34    val engineListener = JUnitTestEngineListener(request.engineExecutionListener)35    engineListener.executionStarted(rootTestDescriptor)36    rootTestDescriptor.execute(engineListener, emptyMap())37    engineListener.executionFinished(rootTestDescriptor, TestExecutionResult.successful())38}39override fun execute(request: ExecutionRequest) {40    val engineListener = JUnitTestEngineListener(request.engineExecutionListener)41    engineListener.executionStarted(rootTestDescriptor)42    rootTestDescriptor.execute(engineListener

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