How to use specs class of io.kotest.framework.multiplatform.native package

Best Kotest code snippet using io.kotest.framework.multiplatform.native.specs

SpecIrGenerationExtension.kt

Source:SpecIrGenerationExtension.kt Github

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...31import java.util.concurrent.CopyOnWriteArrayList32class SpecIrGenerationExtension(private val messageCollector: MessageCollector) : IrGenerationExtension {33 override fun generate(moduleFragment: IrModuleFragment, pluginContext: IrPluginContext) {34 moduleFragment.transform(object : IrElementTransformerVoidWithContext() {35 val specs = CopyOnWriteArrayList<IrClass>()36 override fun visitModuleFragment(declaration: IrModuleFragment): IrModuleFragment {37 val fragment = super.visitModuleFragment(declaration)38 messageCollector.toLogger().log("Detected ${specs.size} native specs:")39 specs.forEach {40 messageCollector.toLogger().log(it.kotlinFqName.asString())41 }42 if (specs.isEmpty()) return fragment43 val file = declaration.files.first()44 val launcherClass = pluginContext.referenceClass(FqName(EntryPoint.TestEngineClassName))45 ?: error("Cannot find ${EntryPoint.TestEngineClassName} class reference")46 val launcherConstructor = launcherClass.constructors.first { it.owner.valueParameters.isEmpty() }47 val launchFn = launcherClass.getSimpleFunction(EntryPoint.LaunchMethodName)48 ?: error("Cannot find function ${EntryPoint.LaunchMethodName}")49 val withSpecsFn = launcherClass.getSimpleFunction(EntryPoint.WithSpecsMethodName)50 ?: error("Cannot find function ${EntryPoint.WithSpecsMethodName}")51 val withTeamCityListenerMethodNameFn =52 launcherClass.getSimpleFunction(EntryPoint.WithTeamCityListenerMethodName)53 ?: error("Cannot find function ${EntryPoint.WithTeamCityListenerMethodName}")54 val eagerAnnotationName = FqName("kotlin.native.EagerInitialization")55 val eagerAnnotation = pluginContext.referenceClass(eagerAnnotationName)56 ?: error("Cannot find eager initialisation annotation class $eagerAnnotationName")57 val eagerAnnotationConstructor = eagerAnnotation.constructors.single()58 val launcher = pluginContext.irFactory.buildProperty {59 name = Name.identifier(EntryPoint.LauncherValName)60 }.apply {61 parent = file62 annotations += IrSingleStatementBuilder(pluginContext, Scope(this.symbol), UNDEFINED_OFFSET, UNDEFINED_OFFSET).build { irCall(eagerAnnotationConstructor) }63 backingField = pluginContext.irFactory.buildField {64 type = pluginContext.irBuiltIns.unitType65 isFinal = true66 isExternal = false67 isStatic = true // top level vals must be static68 name = Name.identifier(EntryPoint.LauncherValName)69 }.also { field ->70 field.correspondingPropertySymbol = this@apply.symbol71 field.initializer = pluginContext.irFactory.createExpressionBody(startOffset, endOffset) {72 this.expression = DeclarationIrBuilder(pluginContext, field.symbol).irBlock {73 +irCall(launchFn).also { launch ->74 launch.dispatchReceiver = irCall(withTeamCityListenerMethodNameFn).also { withTeamCity ->75 withTeamCity.dispatchReceiver = irCall(withSpecsFn).also { withSpecs ->76 withSpecs.dispatchReceiver = irCall(launcherConstructor)77 withSpecs.putValueArgument(78 0,79 irVararg(80 pluginContext.irBuiltIns.stringType,81 specs.map { irCall(it.constructors.first()) }82 )83 )84 }85 }86 }87 }88 }89 }90 addGetter {91 returnType = pluginContext.irBuiltIns.unitType92 }.also { func ->93 func.body = DeclarationIrBuilder(pluginContext, func.symbol).irBlockBody {94 }95 }96 }97 file.addChild(launcher)98 return fragment99 }100 override fun visitFileNew(declaration: IrFile): IrFile {101 super.visitFileNew(declaration)102 val specs = declaration.specs()103 messageCollector.toLogger().log("${declaration.name} contains ${specs.size} spec(s): ${specs.joinToString(", ") { it.kotlinFqName.asString() }}")104 this.specs.addAll(specs)105 return declaration106 }107 }, null)108 }109}...

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specs.kt

Source:specs.kt Github

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...15 "io.kotest.core.spec.style.StringSpec",16 "io.kotest.core.spec.style.WordSpec",17)18/**19 * Returns any specs declared at the top level in this file.20 */21fun IrFile.specs() = declarations.filterIsInstance<IrClass>().filter { it.isSpecClass() }22/**23 * Recursively returns all supertypes for an [IrClass] to the top of the type tree.24 */25fun IrClass.superTypes(): List<IrType> =26 this.superTypes + this.superTypes.flatMap { it.getClass()?.superTypes() ?: emptyList() }27/**28 * Returns true if any of the parents of this class are a spec class.29 */30fun IrClass.isSpecClass() =31 superTypes().mapNotNull { it.classFqName?.asString() }.intersect(specClasses).isNotEmpty()...

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entry.kt

Source:entry.kt Github

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...5 // the method invoked to start the tests, must exist on TestEngineLauncher6 const val LaunchMethodName = "launch"7 // the FQN for the class used to launch the MPP engine8 const val TestEngineClassName = "io.kotest.engine.TestEngineLauncher"9 // the method invoked to add specs to the launcher, must exist on TestEngineLauncher10 const val WithSpecsMethodName = "withSpecs"11 // the method invoked to set the team city listener, must exist on TestEngineLauncher12 const val WithTeamCityListenerMethodName = "withTeamCityListener"13}...

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