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How to use SpecFilterInterceptor class of io.kotest.engine.spec.interceptor package

Best Kotest code snippet using io.kotest.engine.spec.interceptor.SpecFilterInterceptor

SpecExecutor.kt

Source:SpecExecutor.kt

...22import 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>> ->...

SpecFilterInterceptor.kt

Source:SpecFilterInterceptor.kt

...11import io.kotest.mpp.bestName12/**13 * Evaluates a spec against any registered [SpecFilter]s.14 */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)...

SpecFilterInterceptorTest.kt

Source:SpecFilterInterceptorTest.kt

...4import io.kotest.core.filter.SpecFilterResult5import io.kotest.core.spec.SpecRef6import io.kotest.core.spec.style.FunSpec7import io.kotest.engine.listener.NoopTestEngineListener8import io.kotest.engine.spec.interceptor.SpecFilterInterceptor9import io.kotest.matchers.booleans.shouldBeFalse10import io.kotest.matchers.booleans.shouldBeTrue11import kotlin.reflect.KClass12class SpecFilterInterceptorTest : FunSpec() {13   init {14      test("spec filter's should filter tests") {15         val c = ProjectConfiguration()16         c.registry.add(object : SpecFilter {17            override fun filter(kclass: KClass<*>): SpecFilterResult {18               return if (kclass.simpleName == "FooSpec") SpecFilterResult.Exclude("foo") else SpecFilterResult.Include19            }20         })21         var fired = false22         SpecFilterInterceptor(NoopTestEngineListener, c.registry).intercept(SpecRef.Reference(FooSpec::class)) {23            fired = true24            Result.success(emptyMap())25         }26         fired.shouldBeFalse()27         SpecFilterInterceptor(NoopTestEngineListener, c.registry).intercept(SpecRef.Reference(BarSpec::class)) {28            fired = true29            Result.success(emptyMap())30         }31         fired.shouldBeTrue()32      }33   }34}35private class FooSpec : FunSpec()36private class BarSpec : FunSpec()

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