Best Kotest code snippet using io.kotest.engine.interceptors.EngineContext.EngineContext.toProjectContext
SpecExecutor.kt
Source: SpecExecutor.kt
1package io.kotest.engine.spec2import io.kotest.common.ExperimentalKotest3import io.kotest.common.Platform4import io.kotest.common.flatMap5import io.kotest.common.platform6import io.kotest.core.concurrency.CoroutineDispatcherFactory7import io.kotest.core.config.ProjectConfiguration8import io.kotest.core.spec.DslDrivenSpec9import io.kotest.core.spec.Spec10import io.kotest.core.spec.SpecRef11import io.kotest.core.test.TestCase12import io.kotest.core.test.TestResult13import io.kotest.engine.interceptors.EngineContext14import io.kotest.engine.interceptors.toProjectContext15import io.kotest.engine.listener.TestEngineListener16import io.kotest.engine.spec.interceptor.ApplyExtensionsInterceptor17import io.kotest.engine.spec.interceptor.ConfigurationInContextInterceptor18import io.kotest.engine.spec.interceptor.EnabledIfSpecInterceptor19import io.kotest.engine.spec.interceptor.FinalizeSpecInterceptor20import io.kotest.engine.spec.interceptor.IgnoreNestedSpecStylesInterceptor21import io.kotest.engine.spec.interceptor.IgnoredSpecInterceptor22import io.kotest.engine.spec.interceptor.PrepareSpecInterceptor23import io.kotest.engine.spec.interceptor.ProjectContextInterceptor24import io.kotest.engine.spec.interceptor.RequiresTagSpecInterceptor25import io.kotest.engine.spec.interceptor.SpecExtensionInterceptor26import io.kotest.engine.spec.interceptor.SpecFilterInterceptor27import io.kotest.engine.spec.interceptor.SpecFinishedInterceptor28import io.kotest.engine.spec.interceptor.SpecRefExtensionInterceptor29import io.kotest.engine.spec.interceptor.SpecRefInterceptor30import io.kotest.engine.spec.interceptor.SpecStartedInterceptor31import io.kotest.engine.spec.interceptor.SystemPropertySpecFilterInterceptor32import io.kotest.engine.spec.interceptor.TagsExcludedSpecInterceptor33import io.kotest.mpp.Logger34import io.kotest.mpp.bestName35import kotlin.reflect.KClass36/**37 * Executes a single [SpecRef].38 *39 * Uses a [TestEngineListener] to notify of events in the spec lifecycle.40 *41 * The spec executor has two levels of interceptors:42 * [io.kotest.engine.spec.interceptor.SpecRefInterceptor] are executed before the spec is created.43 * [io.kotest.engine.spec.interceptor.SpecInterceptor] are executed after the spec is created.44 *45 */46@ExperimentalKotest47class SpecExecutor(48 private val defaultCoroutineDispatcherFactory: CoroutineDispatcherFactory,49 private val context: EngineContext,50) {51 private val logger = Logger(SpecExecutorDelegate::class)52 private val extensions = SpecExtensions(context.configuration.registry)53 private val listener = context.listener54 suspend fun execute(ref: SpecRef) {55 logger.log { Pair(ref.kclass.bestName(), "Received $ref") }56 referenceInterceptors(ref)57 }58 suspend fun execute(kclass: KClass<out Spec>) {59 execute(SpecRef.Reference(kclass))60 }61 private suspend fun referenceInterceptors(ref: SpecRef) {62 val interceptors = listOfNotNull(63 if (platform == Platform.JVM) EnabledIfSpecInterceptor(listener, context.configuration.registry) else null,64 IgnoredSpecInterceptor(listener, context.configuration.registry),65 SpecFilterInterceptor(listener, context.configuration.registry),66 SystemPropertySpecFilterInterceptor(listener, context.configuration.registry),67 TagsExcludedSpecInterceptor(listener, context.configuration),68 if (platform == Platform.JVM) RequiresTagSpecInterceptor(listener, context.configuration, context.configuration.registry) else null,69 SpecRefExtensionInterceptor(context.configuration.registry),70 SpecStartedInterceptor(listener),71 SpecFinishedInterceptor(listener),72 if (platform == Platform.JVM) ApplyExtensionsInterceptor(context.configuration.registry) else null,73 PrepareSpecInterceptor(context.configuration.registry),74 FinalizeSpecInterceptor(context.configuration.registry),75 )76 val innerExecute: suspend (SpecRef) -> Result<Map<TestCase, TestResult>> = {77 createInstance(ref).flatMap { specInterceptors(it) }78 }79 logger.log { Pair(ref.kclass.bestName(), "Executing ${interceptors.size} reference interceptors") }80 interceptors.foldRight(innerExecute) { ext: SpecRefInterceptor, fn: suspend (SpecRef) -> Result<Map<TestCase, TestResult>> ->81 { ref -> ext.intercept(ref, fn) }82 }.invoke(ref)83 }84 private suspend fun specInterceptors(spec: Spec): Result<Map<TestCase, TestResult>> {85 val interceptors = listOfNotNull(86 if (platform == Platform.JS) IgnoreNestedSpecStylesInterceptor(listener, context.configuration.registry) else null,87 ProjectContextInterceptor(context.toProjectContext()),88 SpecExtensionInterceptor(context.configuration.registry),89 ConfigurationInContextInterceptor(context.configuration),90 )91 val initial: suspend (Spec) -> Result<Map<TestCase, TestResult>> = {92 try {93 val delegate = createSpecExecutorDelegate(listener, defaultCoroutineDispatcherFactory, context.configuration)94 logger.log { Pair(spec::class.bestName(), "delegate=$delegate") }95 Result.success(delegate.execute(spec))96 } catch (t: Throwable) {97 logger.log { Pair(spec::class.bestName(), "Error executing spec $t") }98 Result.failure(t)99 }100 }101 logger.log { Pair(spec::class.bestName(), "Executing ${interceptors.size} spec interceptors") }102 return interceptors.foldRight(initial) { ext, fn ->103 { spec -> ext.intercept(spec, fn) }104 }.invoke(spec)105 }106 /**107 * Creates an instance of the given [SpecRef], notifies users of the instantiation event108 * or instantiation failure, and returns a Result with the error or spec.109 *110 * After this method is called the spec is sealed.111 */112 private suspend fun createInstance(ref: SpecRef): Result<Spec> =113 ref.instance(context.configuration.registry)114 .onFailure { extensions.specInstantiationError(ref.kclass, it) }115 .flatMap { spec -> extensions.specInstantiated(spec).map { spec } }116 .onSuccess { if (it is DslDrivenSpec) it.seal() }117}118interface SpecExecutorDelegate {119 suspend fun execute(spec: Spec): Map<TestCase, TestResult>120}121@ExperimentalKotest122internal expect fun createSpecExecutorDelegate(123 listener: TestEngineListener,124 defaultCoroutineDispatcherFactory: CoroutineDispatcherFactory,125 configuration: ProjectConfiguration,126): SpecExecutorDelegate...
EngineInterceptor.kt
Source: EngineInterceptor.kt
1package io.kotest.engine.interceptors2import io.kotest.common.KotestInternal3import io.kotest.core.TagExpression4import io.kotest.core.config.ProjectConfiguration5import io.kotest.core.project.ProjectContext6import io.kotest.core.project.TestSuite7import io.kotest.engine.EngineResult8import io.kotest.engine.listener.CompositeTestEngineListener9import io.kotest.engine.listener.NoopTestEngineListener10import io.kotest.engine.listener.TestEngineListener11/**12 * Internal pipeline that intercepts calls to the engine.13 *14 * This can be used to execute code before or after the engine15 * and permits changing the [EngineContext].16 */17@KotestInternal18interface EngineInterceptor {19 suspend fun intercept(context: EngineContext, execute: suspend (EngineContext) -> EngineResult): EngineResult20}21data class EngineContext(22 val suite: TestSuite,23 val listener: TestEngineListener,24 val tags: TagExpression,25 val configuration: ProjectConfiguration,26) {27 constructor(configuration: ProjectConfiguration) : this(28 TestSuite.empty,29 NoopTestEngineListener,30 TagExpression.Empty,31 configuration32 )33 companion object {34 val empty = EngineContext(TestSuite.empty, NoopTestEngineListener, TagExpression.Empty, ProjectConfiguration())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 }54}55fun ProjectContext.toEngineContext(context: EngineContext): EngineContext {56 return EngineContext(57 suite,58 context.listener,59 tags,60 configuration61 )62}63fun EngineContext.toProjectContext(): ProjectContext {64 return ProjectContext(65 suite,66 tags,67 configuration68 )69}...
ProjectExtensionEngineInterceptor.kt
1package io.kotest.engine.interceptors2import io.kotest.common.KotestInternal3import io.kotest.core.extensions.ProjectExtension4import io.kotest.core.project.ProjectContext5import io.kotest.engine.EngineResult6/**7 * An [EngineInterceptor] that invokes any [ProjectExtension]s before the engine begins execution.8 *9 * Project extensions can adapt the [ProjectContext] which is the public API version of10 * the [EngineContext]. Any changes to the project context are reflected downstream in11 * the engine context passed to the execute function.12 */13@KotestInternal14internal object ProjectExtensionEngineInterceptor : EngineInterceptor {15 override suspend fun intercept(16 context: EngineContext,17 execute: suspend (EngineContext) -> EngineResult18 ): EngineResult {19 var result: EngineResult = EngineResult.empty20 val initial: suspend (ProjectContext) -> Unit = { result = execute(it.toEngineContext(context)) }21 val chain = context22 .configuration23 .registry24 .all()25 .filterIsInstance<ProjectExtension>()26 .foldRight(initial) { extension, acc: suspend (ProjectContext) -> Unit ->27 {28 extension.interceptProject(context.toProjectContext()) { acc(it) }29 }30 }31 return try {32 chain.invoke(context.toProjectContext())33 result34 } catch (t: Throwable) {35 result.addError(t)36 }37 }38}...
EngineContext.toProjectContext
Using AI Code Generation
1import io.kotest.core.spec.style.StringSpec2import io.kotest.engine.interceptors.EngineContext3import io.kotest.matchers.shouldBe4class EngineContextTest : StringSpec({5 "toProjectContext" {6 val context = EngineContext()7 val projectContext = context.toProjectContext()8 }9})10import io.kotest.core.spec.style.StringSpec11import io.kotest.engine.interceptors.EngineContext12import io.kotest.matchers.shouldBe13class EngineContextTest : StringSpec({14 "toProjectContext" {15 val context = EngineContext()16 val projectContext = context.toProjectContext()17 }18})19import io.kotest.core.spec.style.StringSpec20import io.kotest.engine.interceptors.EngineContext21import io.kotest.matchers.shouldBe22class EngineContextTest : StringSpec({23 "toProjectContext" {24 val context = EngineContext()25 val projectContext = context.toProjectContext()26 }27})28import io.kotest.core.spec.style.StringSpec29import io.kotest.engine.interceptors.EngineContext30import io.kotest.matchers.shouldBe31class EngineContextTest : StringSpec({32 "toProjectContext" {33 val context = EngineContext()34 val projectContext = context.toProjectContext()35 }36})37import io.kotest.core.spec.style.StringSpec38import io.kotest.engine.interceptors.EngineContext39import io.kotest.matchers.shouldBe40class EngineContextTest : StringSpec({41 "toProjectContext" {42 val context = EngineContext()43 val projectContext = context.toProjectContext()44 }45})
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