Best Kotest code snippet using io.kotest.engine.test.TestExtensions.extensions
TestExtensions.kt
Source: TestExtensions.kt
1package io.kotest.engine.test2import io.kotest.common.collect3import io.kotest.common.mapError4import io.kotest.core.config.ExtensionRegistry5import io.kotest.core.extensions.Extension6import io.kotest.core.extensions.TestCaseExtension7import io.kotest.core.listeners.AfterContainerListener8import io.kotest.core.listeners.AfterEachListener9import io.kotest.core.listeners.AfterInvocationListener10import io.kotest.core.listeners.AfterTestListener11import io.kotest.core.listeners.BeforeContainerListener12import io.kotest.core.listeners.BeforeEachListener13import io.kotest.core.listeners.BeforeInvocationListener14import io.kotest.core.listeners.BeforeTestListener15import io.kotest.core.spec.functionOverrideCallbacks16import io.kotest.core.test.TestCase17import io.kotest.core.test.TestResult18import io.kotest.core.test.TestScope19import io.kotest.core.test.TestType20import io.kotest.engine.extensions.ExtensionException21import io.kotest.engine.extensions.MultipleExceptions22import io.kotest.engine.test.logging.LogExtension23import io.kotest.engine.test.scopes.withCoroutineContext24import kotlin.coroutines.coroutineContext25/**26 * Used to invoke extension points on tests.27 */28internal class TestExtensions(private val registry: ExtensionRegistry) {29 /**30 * Returns all [Extension]s applicable to a [TestCase]. This includes extensions31 * included in test case config, those at the spec level, and project wide from32 * the registry.33 */34 fun extensions(testCase: TestCase): List<Extension> {35 return testCase.config.extensions +36 testCase.spec.extensions() + // overriding the extensions function in the spec37 testCase.spec.listeners() + // overriding the listeners function in the spec38 testCase.spec.functionOverrideCallbacks() + // spec level dsl eg beforeTest { }39 testCase.spec.registeredExtensions() + // added to the spec via register40 registry.all() // globals41 }42 suspend fun beforeInvocation(testCase: TestCase, invocation: Int): Result<TestCase> {43 val extensions = extensions(testCase).filterIsInstance<BeforeInvocationListener>()44 return extensions.map {45 runCatching {46 it.beforeInvocation(testCase, invocation)47 }.mapError { ExtensionException.BeforeInvocationException(it) }48 }.collect { if (it.size == 1) it.first() else MultipleExceptions(it) }.map { testCase }49 }50 suspend fun afterInvocation(testCase: TestCase, invocation: Int): Result<TestCase> {51 val extensions = extensions(testCase).filterIsInstance<AfterInvocationListener>()52 return extensions.map {53 runCatching {54 it.afterInvocation(testCase, invocation)55 }.mapError { ExtensionException.AfterInvocationException(it) }56 }.collect { if (it.size == 1) it.first() else MultipleExceptions(it) }.map { testCase }57 }58 /**59 * Invokes all beforeXYZ callbacks for this test, checking for the appropriate test type.60 * Returns a Result of [MultipleExceptions] if there are any exceptions.61 */62 suspend fun beforeTestBeforeAnyBeforeContainer(testCase: TestCase): Result<TestCase> {63 val bt = extensions(testCase).filterIsInstance<BeforeTestListener>()64 val bc = extensions(testCase).filterIsInstance<BeforeContainerListener>()65 val be = extensions(testCase).filterIsInstance<BeforeEachListener>()66 val errors = bc.mapNotNull {67 runCatching {68 if (testCase.type == TestType.Container) it.beforeContainer(testCase)69 }.mapError { ExtensionException.BeforeContainerException(it) }.exceptionOrNull()70 } + be.mapNotNull {71 runCatching {72 if (testCase.type == TestType.Test) it.beforeEach(testCase)73 }.mapError { ExtensionException.BeforeEachException(it) }.exceptionOrNull()74 } + bt.mapNotNull {75 runCatching {76 it.beforeAny(testCase)77 }.mapError { ExtensionException.BeforeAnyException(it) }.exceptionOrNull()78 } + bt.mapNotNull {79 runCatching {80 it.beforeTest(testCase)81 }.mapError { ExtensionException.BeforeTestException(it) }.exceptionOrNull()82 }83 return when {84 errors.isEmpty() -> Result.success(testCase)85 errors.size == 1 -> Result.failure(errors.first())86 else -> Result.failure(MultipleExceptions(errors))87 }88 }89 /**90 * Invokes all beforeXYZ callbacks for this test.91 * Returns a Result of [MultipleExceptions] if there are any exceptions.92 */93 suspend fun afterTestAfterAnyAfterContainer(testCase: TestCase, result: TestResult): Result<TestResult> {94 val at = extensions(testCase).filterIsInstance<AfterTestListener>()95 val ac = extensions(testCase).filterIsInstance<AfterContainerListener>()96 val ae = extensions(testCase).filterIsInstance<AfterEachListener>()97 val errors = at.mapNotNull {98 runCatching {99 it.afterTest(testCase, result)100 }.mapError { ExtensionException.AfterTestException(it) }.exceptionOrNull()101 } + at.mapNotNull {102 runCatching {103 it.afterAny(testCase, result)104 }.mapError { ExtensionException.AfterAnyException(it) }.exceptionOrNull()105 } + ac.mapNotNull {106 runCatching {107 if (testCase.type == TestType.Container) it.afterContainer(testCase, result)108 }.mapError { ExtensionException.AfterContainerException(it) }.exceptionOrNull()109 } + ae.mapNotNull {110 runCatching {111 if (testCase.type == TestType.Test) it.afterEach(testCase, result)112 }.mapError { ExtensionException.AfterEachException(it) }.exceptionOrNull()113 }114 return when {115 errors.isEmpty() -> Result.success(result)116 errors.size == 1 -> Result.failure(errors.first())117 else -> Result.failure(MultipleExceptions(errors))118 }119 }120 /**121 * Executes the [TestCaseExtension]s for this [TestCase].122 */123 suspend fun intercept(124 testCase: TestCase,125 context: TestScope,126 inner: suspend (TestCase, TestScope) -> TestResult,127 ): TestResult {128 val execute = extensions(testCase).filterIsInstance<TestCaseExtension>()129 .foldRight(inner) { extension, execute ->130 { tc, ctx ->131 extension.intercept(tc) {132 // the user's intercept method is free to change the context of the coroutine133 // to support this, we should switch the context used by the test case context134 execute(it, ctx.withCoroutineContext(coroutineContext))135 }136 }137 }138 return execute(testCase, context)139 }140 fun logExtensions(testCase: TestCase): List<LogExtension> {141 return extensions(testCase).filterIsInstance<LogExtension>()142 }143}...
LifecycleInterceptor.kt
Source: LifecycleInterceptor.kt
...28 private val listener: TestCaseExecutionListener,29 private val timeMark: TimeMark,30 registry: ExtensionRegistry,31) : TestExecutionInterceptor {32 private val extensions = TestExtensions(registry)33 private val logger = Logger(LifecycleInterceptor::class)34 override suspend fun intercept(35 testCase: TestCase,36 scope: TestScope,37 test: suspend (TestCase, TestScope) -> TestResult38 ): TestResult {39 logger.log { Pair(testCase.name.testName, "Notifying listener test started") }40 listener.testStarted(testCase)41 return extensions.beforeTestBeforeAnyBeforeContainer(testCase)42 .fold(43 {44 val result = test(testCase, scope)45 // any error in the after listeners will override the test result unless the test was already an error46 extensions47 .afterTestAfterAnyAfterContainer(testCase, result)48 .fold(49 { result },50 { if (result.isErrorOrFailure) result else createTestResult(timeMark.elapsedNow(), it) }51 )52 },53 {54 val result = createTestResult(timeMark.elapsedNow(), it)55 // can ignore errors here as we already have the before errors to show56 extensions.afterTestAfterAnyAfterContainer(testCase, result)57 result58 }59 )60 }61}...
TestInvocationInterceptor.kt
Source: TestInvocationInterceptor.kt
...12class TestInvocationInterceptor(13 registry: ExtensionRegistry,14 private val timeMark: TimeMark,15) : TestExecutionInterceptor {16 private val extensions = TestExtensions(registry)17 private val logger = Logger(TestInvocationInterceptor::class)18 override suspend fun intercept(19 testCase: TestCase,20 scope: TestScope,21 test: suspend (TestCase, TestScope) -> TestResult22 ): TestResult {23 return try {24 // we wrap in a coroutine scope so that we wait for any user-launched coroutines to finish,25 // and so we can grab any exceptions they throw26 coroutineScope {27 replay(28 testCase.config.invocations,29 testCase.config.threads,30 { extensions.beforeInvocation(testCase, it) },31 { extensions.afterInvocation(testCase, it) }) {32 test(testCase, scope)33 }34 }35 logger.log { Pair(testCase.name.testName, "Test returned without error") }36 try {37 TestResult.Success(timeMark.elapsedNow())38 } catch (e: Throwable) {39 TestResult.Success(Duration.ZERO) // workaround for kotlin 1.540 }41 } catch (t: Throwable) {42 logger.log { Pair(testCase.name.testName, "Test threw error $t") }43 try {44 createTestResult(timeMark.elapsedNow(), t)45 } catch (e: Throwable) {...
CoroutineLoggingInterceptor.kt
Source: CoroutineLoggingInterceptor.kt
...18 testCase: TestCase,19 scope: TestScope,20 test: suspend (TestCase, TestScope) -> TestResult21 ): TestResult {22 val extensions = TestExtensions(configuration.registry).logExtensions(testCase)23 return when {24 configuration.logLevel.isDisabled() || extensions.isEmpty() -> {25 logger.log { Pair(testCase.name.testName, "Test logging is disabled (exts = $extensions)") }26 test(testCase, scope)27 }28 else -> {29 val logger = TestLogger(configuration.logLevel)30 withContext(TestScopeLoggingCoroutineContextElement(logger)) {31 test(testCase, scope.withCoroutineContext(coroutineContext))32 }.apply {33 extensions.map { SerialLogExtension(it) }.forEach { extension ->34 runCatching {35 extension.handleLogs(testCase, logger.logs.filter { it.level >= configuration.logLevel })36 }37 }38 }39 }40 }41 }42}
TestCaseExtensionInterceptor.kt
Source: TestCaseExtensionInterceptor.kt
1package io.kotest.engine.test.interceptors2import io.kotest.core.config.ExtensionRegistry3import io.kotest.core.extensions.TestCaseExtension4import io.kotest.core.test.TestCase5import io.kotest.core.test.TestResult6import io.kotest.core.test.TestScope7import io.kotest.engine.test.TestExtensions8/**9 * This [TestExecutionInterceptor] executes any user level [TestCaseExtension]s.10 *11 * This extension should happen early, so users can override any disabled status.12 */13internal class TestCaseExtensionInterceptor(registry: ExtensionRegistry) : TestExecutionInterceptor {14 private val extensions = TestExtensions(registry)15 override suspend fun intercept(16 testCase: TestCase,17 scope: TestScope,18 test: suspend (TestCase, TestScope) -> TestResult19 ): TestResult {20 return extensions.intercept(testCase, scope) { tc, s -> test(tc, s) }21 }22}...
extensions
Using AI Code Generation
1val testExtensions = TestExtensions()2testExtensions.register(object : TestExtension {3 override suspend fun intercept(4 execute: suspend (TestCase) -> TestResult,5 complete: suspend (TestCase, TestResult) -> Unit6 ) {7 execute(test).also { result ->8 }9 }10})11val specExtensions = SpecExtensions()12specExtensions.register(object : SpecExtension {13 override suspend fun intercept(14 execute: suspend (Spec) -> Unit,15 complete: suspend (Spec, Throwable?) -> Unit16 ) {17 execute(spec).also {18 }19 }20})21val specInterceptExtensions = SpecInterceptExtensions()22specInterceptExtensions.register(object : SpecInterceptExtension {23 override suspend fun intercept(24 execute: suspend (Spec) -> Unit,25 complete: suspend (Spec, Throwable?) -> Unit26 ) {27 execute(spec).also {28 }29 }30})31val testInterceptExtensions = TestInterceptExtensions()32testInterceptExtensions.register(object : TestInterceptExtension {33 override suspend fun intercept(34 execute: suspend (TestCase) -> TestResult,35 complete: suspend (TestCase, TestResult) -> Unit36 ) {37 execute(test).also { result ->38 }39 }40})41val testCaseExtensions = TestCaseExtensions()42testCaseExtensions.register(object : TestCaseExtension {43 override suspend fun intercept(44 execute: suspend (TestCase) -> TestResult45 ): TestResult {46 return execute(testCase).also { result ->47 }48 }49})50val testExtensions = TestExtensions()51testExtensions.register(object : TestExtension {52 override suspend fun intercept(
extensions
Using AI Code Generation
1class TestExtensionsTest : FunSpec() {2 override fun extensions(): List<Extension> = listOf(3 TestExtensions {4 afterSpec { println("afterSpec") }5 beforeSpec { println("beforeSpec") }6 afterTest { println("afterTest") }7 beforeTest { println("beforeTest") }8 }9 init {10 test("test") {11 println("test")12 }13 }14}
extensions
Using AI Code Generation
1+class TestExtensionsTest : FunSpec({2+ test("test case 1").config(extensions = listOf(MockExtension())) {3+ println("test case 1")4+ }5+ test("test case 2").config(extensions = listOf(MockExtension())) {6+ println("test case 2")7+ }8+})9+class TestExtensionsTest : FunSpec({10+ extensions(MockExtension())11+ test("test case 1") {12+ println("test case 1")13+ }14+ test("test case 2") {15+ println("test case 2")16+ }17+})18+class TestExtensionsTest : FunSpec({19+ extensions(MockExtension())20+ test("test case 1") {21+ println("test case 1")22+ }23+ test("test case 2") {24+ println("test case 2")25+ }26+})
extensions
Using AI Code Generation
1+class TestExtensionsTest : FunSpec() {2+ init {3+ context("test context") {4+ test("test case") {5+ testCase.extensions().size shouldBe 26+ testCase.extensions()[0] shouldBe TestExtension17+ testCase.extensions()[1] shouldBe TestExtension28+ }9+ }10+ }11+}12+class TestListenerTest : FunSpec() {13+ private val listener = object : TestListener {14+ override suspend fun beforeTest(testCase: TestCase) {15+ }16+ override suspend fun afterTest(testCase: TestCase, result: TestResult) {17+ }18+ override suspend fun afterProject() {19+ }20+ }21+ init {22+ registerListener(listener)23+ context("test context") {24+ test("test case") {25+ }26+ }27+ }28+}29+class ProjectListenerTest : FunSpec() {30+ private val listener = object : ProjectListener {31+ override suspend fun beforeProject() {32+ }33+ override suspend fun afterProject() {34+ }35+ }36+ init {37+ registerListener(listener)38+ context("test context") {39+ test("test case") {40+ }41+ }42+ }43+}
extensions
Using AI Code Generation
1class TestExtensionsExample : FunSpec({2 extensions {3 val extension = MyTestExtension()4 register(extension)5 }6 test("test 1") {7 }8 test("test 2") {9 }10 test("test 3") {11 }12})
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