How to use extensions method of io.kotest.engine.spec.SpecExtensions class

Best Kotest code snippet using io.kotest.engine.spec.SpecExtensions.extensions

IgnoreNestedSpecStylesInterceptor.kt

Source: IgnoreNestedSpecStylesInterceptor.kt Github

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...19internal class IgnoreNestedSpecStylesInterceptor(20 private val listener: TestEngineListener,21 registry: ExtensionRegistry,22) : SpecInterceptor {23 private val extensions = SpecExtensions(registry)24 override suspend fun intercept(25 spec: Spec,26 fn: suspend (Spec) -> Result<Map<TestCase, TestResult>>27 ): Result<Map<TestCase, TestResult>> {28 fun isValid(spec: Spec) = when (spec) {29 is FunSpec, is ExpectSpec, is FeatureSpec, is ShouldSpec, is StringSpec -> true30 else -> false31 }32 return if (isValid(spec)) {33 fn(spec)34 } else {35 log { "IgnoreNestedSpecStylesInterceptor: Marking ${spec::class.bestName()} as inactive due to platform limitations" }36 println("WARN: kotest-js only supports top level tests due to underlying platform limitations. '${spec::class.bestName()}' has been marked as ignored")37 runCatching { listener.specIgnored(spec::class, "Disabled due to platform limitations") }38 .flatMap { extensions.ignored(spec::class, "Disabled due to platform limitations") }39 .map { emptyMap() }40 }41 }42}...

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EnabledIfSpecInterceptor.kt

Source: EnabledIfSpecInterceptor.kt Github

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...19internal class EnabledIfSpecInterceptor(20 private val listener: TestEngineListener,21 registry: ExtensionRegistry,22) : SpecRefInterceptor {23 private val extensions = SpecExtensions(registry)24 override suspend fun intercept(25 ref: SpecRef,26 fn: suspend (SpecRef) -> Result<Map<TestCase, TestResult>>27 ): Result<Map<TestCase, TestResult>> {28 val enabled = ref.kclass29 .annotation<EnabledIf>()30 ?.wrapper31 ?.newInstanceNoArgConstructor()32 ?.enabled(ref.kclass) ?: true33 return if (enabled) {34 fn(ref)35 } else {36 runCatching { listener.specIgnored(ref.kclass, "Disabled by @EnabledIf") }37 .flatMap { extensions.ignored(ref.kclass, "Disabled by @EnabledIf") }38 .map { emptyMap() }39 }40 }41}...

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SpecFilterInterceptor.kt

Source: SpecFilterInterceptor.kt Github

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...15class SpecFilterInterceptor(16 private val listener: TestEngineListener,17 private val registry: ExtensionRegistry18) : SpecRefInterceptor {19 private val extensions = SpecExtensions(registry)20 private val logger = Logger(SpecFilterInterceptor::class)21 override suspend fun intercept(22 ref: SpecRef,23 fn: suspend (SpecRef) -> Result<Map<TestCase, TestResult>>24 ): Result<Map<TestCase, TestResult>> {25 val excluded = registry.all().filterIsInstance<SpecFilter>().mapNotNull {26 val result = it.filter(ref.kclass)27 if (result is SpecFilterResult.Exclude) result else null28 }.firstOrNull()29 logger.log { Pair(ref.kclass.bestName(), "excludedByFilters == $excluded") }30 return if (excluded == null) {31 fn(ref)32 } else {33 val reason = excluded.reason ?: "Disabled by spec filter"34 listener.specIgnored(ref.kclass, reason)35 extensions.ignored(ref.kclass, reason)36 Result.success(emptyMap())37 }38 }39}...

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IgnoredSpecInterceptor.kt

Source: IgnoredSpecInterceptor.kt Github

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...20 private val listener: TestEngineListener,21 registry: ExtensionRegistry,22) : SpecRefInterceptor {23 private val logger = Logger(IgnoredSpecInterceptor::class)24 private val extensions = SpecExtensions(registry)25 override suspend fun intercept(26 ref: SpecRef,27 fn: suspend (SpecRef) -> Result<Map<TestCase, TestResult>>28 ): Result<Map<TestCase, TestResult>> {29 val isIgnored = ref.kclass.hasAnnotation<Ignored>()30 logger.log { Pair(ref.kclass.bestName(), "@Ignored == $isIgnored") }31 return if (isIgnored) {32 runCatching { listener.specIgnored(ref.kclass, "Disabled by @Ignored") }33 .flatMap { extensions.ignored(ref.kclass, "Disabled by @Ignored") }34 .map { emptyMap() }35 } else {36 fn(ref)37 }38 }39}...

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TagsExcludedDiscoveryExtension.kt

Source: TagsExcludedDiscoveryExtension.kt Github

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...17class TagsExcludedSpecInterceptor(18 private val listener: TestEngineListener,19 private val conf: ProjectConfiguration,20) : SpecRefInterceptor {21 private val extensions = SpecExtensions(conf.registry)22 override suspend fun intercept(23 ref: SpecRef,24 fn: suspend (SpecRef) -> Result<Map<TestCase, TestResult>>25 ): Result<Map<TestCase, TestResult>> {26 val potentiallyActive = conf.runtimeTags().parse().isPotentiallyActive(ref.kclass)27 return if (potentiallyActive) {28 fn(ref)29 } else {30 runCatching { listener.specIgnored(ref.kclass, null) }31 .flatMap { extensions.ignored(ref.kclass, "Skipped by tags") }32 .map { emptyMap() }33 }34 }35}...

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SpecExtensionInterceptor.kt

Source: SpecExtensionInterceptor.kt Github

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1package io.kotest.engine.spec.interceptor2import io.kotest.core.config.ExtensionRegistry3import io.kotest.core.extensions.SpecExtension4import io.kotest.core.spec.Spec5import io.kotest.core.test.TestCase6import io.kotest.core.test.TestResult7import io.kotest.engine.spec.SpecExtensions8/​**9 * A [SpecInterceptor] that executes all [SpecExtension]s.10 */​11internal class SpecExtensionInterceptor(registry: ExtensionRegistry) : SpecInterceptor {12 val extensions = SpecExtensions(registry)13 override suspend fun intercept(14 spec: Spec,15 fn: suspend (Spec) -> Result<Map<TestCase, TestResult>>16 ): Result<Map<TestCase, TestResult>> {17 return extensions.intercept(spec) { fn(spec) } ?: Result.success(emptyMap())18 }19}...

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FinalizeSpecInterceptor.kt

Source: FinalizeSpecInterceptor.kt Github

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...6import io.kotest.engine.spec.SpecExtensions7internal class FinalizeSpecInterceptor(8 registry: ExtensionRegistry,9) : SpecRefInterceptor {10 private val extensions = SpecExtensions(registry)11 override suspend fun intercept(12 ref: SpecRef,13 fn: suspend (SpecRef) -> Result<Map<TestCase, TestResult>>14 ): Result<Map<TestCase, TestResult>> {15 return fn(ref)16 .onSuccess { extensions.finalizeSpec(ref.kclass, it, null) }17 .onFailure { extensions.finalizeSpec(ref.kclass, emptyMap(), it) }18 }19}...

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PrepareSpecInterceptor.kt

Source: PrepareSpecInterceptor.kt Github

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...5import io.kotest.core.test.TestCase6import io.kotest.core.test.TestResult7import io.kotest.engine.spec.SpecExtensions8class PrepareSpecInterceptor(registry: ExtensionRegistry) : SpecRefInterceptor {9 private val extensions = SpecExtensions(registry)10 override suspend fun intercept(11 ref: SpecRef,12 fn: suspend (SpecRef) -> Result<Map<TestCase, TestResult>>,13 ): Result<Map<TestCase, TestResult>> {14 return extensions15 .prepareSpec(ref.kclass)16 .flatMap { fn(ref) }17 }18}...

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extensions

Using AI Code Generation

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1import io.kotest.core.extensions.SpecExtension2import io.kotest.core.spec.style.StringSpec3import io.kotest.engine.spec.SpecExtensions4import io.kotest.matchers.shouldBe5class MySpec : StringSpec({6"test" {7}8})9fun main() {10val spec = MySpec()11val extensions = SpecExtensions()12extensions.add(SpecExtension { println("before spec") })13extensions.add(SpecExtension { println("after spec") })14extensions.beforeSpec(spec)15extensions.afterSpec(spec)16}

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extensions

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1 extensions(2 MyExtension()3 ) {4 }5}6class MySpec : FunSpec() {7 init {8 extensions(9 MyExtension()10 test("test 1") {11 }12 test("test 2") {13 }14 }15}16class MyProject : ProjectConfig() {17 override fun extensions() = listOf(MyExtension())18}19class MySpec : FunSpec({20 test("test 1").config(extensions = listOf(MyExtension())) {21 }22})23class MySpec : FunSpec() {24 init {25 test("test 1").config(extensions = listOf(MyExtension())) {26 }27 test("test 2").config(extensions = listOf(MyExtension())) {28 }29 }30}31class MyProject : ProjectConfig() {32 override fun extensions() = listOf(My

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