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How to use SpekTestDescriptor class of org.spekframework.spek2.junit package

Best Spek code snippet using org.spekframework.spek2.junit.SpekTestDescriptor

ReadmeTestEngine.kt

Source:ReadmeTestEngine.kt

...4import ch.tutteli.niok.readText5import ch.tutteli.niok.writeText6import org.junit.platform.engine.*7import org.spekframework.spek2.junit.JUnitEngineExecutionListenerAdapter8import org.spekframework.spek2.junit.SpekTestDescriptor9import org.spekframework.spek2.junit.SpekTestDescriptorFactory10import org.spekframework.spek2.junit.SpekTestEngine11import org.spekframework.spek2.runtime.SpekRuntime12import org.spekframework.spek2.runtime.execution.ExecutionRequest13import java.nio.file.Paths14import java.util.*15import kotlin.collections.HashSet16import kotlin.collections.component117import kotlin.collections.component218import kotlin.collections.filterIsInstance19import kotlin.collections.forEach20import kotlin.collections.isNotEmpty21import kotlin.collections.map22import kotlin.collections.mutableMapOf23import kotlin.collections.set24import org.junit.platform.engine.ExecutionRequest as JUnitExecutionRequest25class ReadmeTestEngine : TestEngine {26    private val spek = SpekTestEngine()27    private val examples = mutableMapOf<String, String>()28    private val code = HashSet<String>()29    private val snippets = mutableMapOf<String, String>()30    override fun getId(): String = "spek2-readme"31    override fun discover(discoveryRequest: EngineDiscoveryRequest, uniqueId: UniqueId): TestDescriptor {32        val descriptor = spek.discover(discoveryRequest, uniqueId)33        require(descriptor.children.isNotEmpty()) {34            "Could not find any specification, check your runtime classpath"35        }36        return descriptor37    }38    override fun execute(request: JUnitExecutionRequest) {39        val default = Locale.getDefault()40        try {41            Locale.setDefault(Locale.UK)42            val classes = runSpekWithCustomListener(request)43            processExamples(classes, request)44        } catch (t: Throwable) {45            t.printStackTrace()46            Locale.setDefault(default)47            request.fail(t)48        }49    }50    private fun processExamples(classes: List<String>, request: JUnitExecutionRequest) {51        val specContents = classes.map { qualifiedClass ->52            qualifiedClass to fileContent("src/main/kotlin/$qualifiedClass.kt", request)53        }54        specContents.forEach { (_, specContent) ->55            extractSnippets(specContent, request)56        }57        var readmeContent = fileContent(readmeStringPath, request)58        if (examples.isEmpty()) {59            request.fail("no examples found")60            return61        }62        if (code.isEmpty()) {63            request.fail("no code found")64            return65        }66        if (snippets.isEmpty()) {67            request.fail("no snippets found")68            return69        }70        examples.forEach { (exampleId, output) ->71            readmeContent = updateExampleLikeInReadme(readmeContent, specContents, exampleId, output, request)72        }73        code.forEach { codeId ->74            readmeContent = updateCodeInReadme(readmeContent, specContents, codeId, request)75        }76        snippets.forEach { (snippetId, snippetContent) ->77            readmeContent = updateSnippetInReadme(readmeContent, snippetId, snippetContent, request)78        }79        Paths.get(readmeStringPath).writeText(readmeContent)80    }81    private fun extractSnippets(specContent: String, request: JUnitExecutionRequest) {82        Regex("//(snippet-.+)-start([\\S\\s]*?)//(snippet-.+)-end").findAll(specContent).forEach {83            val (tag, content, endTag) = it.destructured84            request.failIf(tag != endTag) { "tag $tag-start did not end with $tag-end but with $endTag" }85            snippets[tag] = content.trimIndent()86        }87    }88    private fun runSpekWithCustomListener(request: JUnitExecutionRequest) : List<String> {89        val roots = request.rootTestDescriptor.children90            .filterIsInstance<SpekTestDescriptor>()91            .map(SpekTestDescriptor::scope)92        val executionListener = ReadmeExecutionListener(93            JUnitEngineExecutionListenerAdapter(request.engineExecutionListener, SpekTestDescriptorFactory()),94            examples,95            code96        )97        val executionRequest = ExecutionRequest(roots, executionListener)98        SpekRuntime().execute(executionRequest)99        return roots.map { it.path.toString() }100    }101    private fun fileContent(path: String, request: JUnitExecutionRequest): String {102        val file = Paths.get(path)103        request.failIf(!file.exists) { "could not find ${file.absolutePathAsString}" }104        return file.readText()105    }106    private inline fun JUnitExecutionRequest.failIf(predicate: Boolean, errorMessage: () -> String) {107        if (predicate) fail(errorMessage())...

SpekTestEngine.kt

Source:SpekTestEngine.kt

...26            UriSelector::class.java,27            DirectorySelector::class.java28        )29    }30    private val descriptorFactory = SpekTestDescriptorFactory()31    private val runtime by lazy { SpekRuntime() }32    override fun getId() = ID33    override fun discover(discoveryRequest: EngineDiscoveryRequest, uniqueId: UniqueId): TestDescriptor {34        val engineDescriptor = SpekEngineDescriptor(uniqueId, id)35        if (containsUnsupportedSelector(discoveryRequest)) {36            return engineDescriptor37        }38        val sourceDirs = discoveryRequest.getSelectorsByType(ClasspathRootSelector::class.java)39            .map { it.classpathRoot }40            .map { Paths.get(it) }41            .map { it.toString() }42        val classSelectors = discoveryRequest.getSelectorsByType(ClassSelector::class.java)43            .filter {44                // get all super classes45                val superClasses = mutableListOf<String>()46                var current = it.javaClass.superclass47                while (current != null) {48                    superClasses.add(current.name)49                    current = current.superclass50                }51                superClasses.contains("org.spekframework.spek2.Spek")52            }53            .filter {54                !(it.javaClass.isAnonymousClass55                    || it.javaClass.isLocalClass56                    || it.javaClass.isSynthetic57                    || Modifier.isAbstract(it.javaClass.modifiers))58            }.map {59                PathBuilder60                    .from(it.javaClass.kotlin)61                    .build()62            }63        val packageSelectors = discoveryRequest.getSelectorsByType(PackageSelector::class.java)64            .map {65                PathBuilder()66                    .appendPackage(it.packageName)67                    .build()68            }69        val filters = linkedSetOf<Path>()70        filters.addAll(classSelectors)71        filters.addAll(packageSelectors)72        // todo: empty filter should imply root73        if (filters.isEmpty()) {74            filters.add(PathBuilder.ROOT)75        }76        val context = JvmDiscoveryContextFactory.create(sourceDirs)77        val discoveryResult = runtime.discover(DiscoveryRequest(context, filters.toList()))78        discoveryResult.roots79            .map { descriptorFactory.create(it) }80            .forEach(engineDescriptor::addChild)81        return engineDescriptor82    }83    override fun execute(request: JUnitExecutionRequest) {84        val roots = request.rootTestDescriptor.children85            .filterIsInstance<SpekTestDescriptor>()86            .map(SpekTestDescriptor::scope)87        val executionRequest = ExecutionRequest(88            roots, JUnitEngineExecutionListenerAdapter(request.engineExecutionListener, descriptorFactory)89        )90        runtime.execute(executionRequest)91    }92    private fun containsUnsupportedSelector(discoveryRequest: EngineDiscoveryRequest): Boolean {93        for (selector in UNSUPPORTED_SELECTORS) {94            if (discoveryRequest.getSelectorsByType(selector).isNotEmpty()) {95                return true96            }97        }98        return false99    }100}...

SpekTestDescriptor.kt

Source:SpekTestDescriptor.kt

...8import org.spekframework.spek2.runtime.scope.ScopeImpl9import org.spekframework.spek2.runtime.scope.ScopeType10import org.spekframework.spek2.runtime.scope.TestScopeImpl11import java.util.*12class SpekTestDescriptor internal constructor(13    val scope: ScopeImpl,14    private val factory: SpekTestDescriptorFactory15) : TestDescriptor {16    companion object {17        private val ENGINE_ID = UniqueId.forEngine(SpekTestEngine.ID)18    }19    private val id by lazy { computeId(scope) }20    private fun computeId(scope: ScopeImpl?): UniqueId = if (scope == null) {21        ENGINE_ID22    } else {23        computeId(scope.parent as ScopeImpl?).append("${scope.id.type}", scope.id.name)24    }25    private var engineDescriptor: SpekEngineDescriptor? = null26    private val childDescriptors = mutableSetOf<TestDescriptor>()27    override fun getUniqueId() = id28    override fun getDisplayName(): String = scope.path.name29    override fun getType(): TestDescriptor.Type = when (scope) {30        is GroupScopeImpl -> TestDescriptor.Type.CONTAINER31        is TestScopeImpl -> TestDescriptor.Type.TEST32    }33    override fun getSource(): Optional<TestSource> = when (scope.id.type) {34        ScopeType.Class -> Optional.of(ClassSource.from(scope.id.name))35        ScopeType.Scope -> Optional.empty()36    }37    override fun setParent(parent: TestDescriptor?) {38        // Called only when adding as a child of the engine's descriptor.39        // Will be null only if it's not the root scope.40        if (parent != null && parent is SpekEngineDescriptor) {41            engineDescriptor = parent42        }43    }44    override fun getParent(): Optional<TestDescriptor> {45        val parent = scope.parent as ScopeImpl?46        return Optional.of(47            if (parent != null) {48                factory.create(parent)49            } else {50                // Root scope, setParent(...) was called before.51                engineDescriptor!!52            }53        )54    }55    override fun addChild(descriptor: TestDescriptor) {56        childDescriptors.add(descriptor)57    }58    override fun getChildren() = childDescriptors59    override fun getTags(): MutableSet<TestTag> = mutableSetOf()60    override fun removeFromHierarchy() {61        parent.ifPresent { parent ->62            parent.removeChild(this)63        }64    }65    override fun removeChild(descriptor: TestDescriptor) {66        if (scope is GroupScopeImpl) {67            childDescriptors.remove(descriptor)68            scope.removeChild((descriptor as SpekTestDescriptor).scope)69        }70    }71    override fun findByUniqueId(uniqueId: UniqueId): Optional<out TestDescriptor> =72        throw UnsupportedOperationException()73}...

Spek2ForgivingTestEngine.kt

Source:Spek2ForgivingTestEngine.kt

1package ch.tutteli.atrium.bctest.spek2import org.junit.platform.engine.*3import org.spekframework.spek2.junit.JUnitEngineExecutionListenerAdapter4import org.spekframework.spek2.junit.SpekTestDescriptor5import org.spekframework.spek2.junit.SpekTestDescriptorFactory6import org.spekframework.spek2.junit.SpekTestEngine7import org.spekframework.spek2.runtime.SpekRuntime8import org.spekframework.spek2.runtime.execution.ExecutionRequest9import java.util.*10import org.junit.platform.engine.ExecutionRequest as JUnitExecutionRequest11class Spek2ForgivingTestEngine : TestEngine {12    private val spek = SpekTestEngine()13    private lateinit var forgiveRegex: Regex14    override fun getId(): String = "spek2-forgiving"15    override fun discover(discoveryRequest: EngineDiscoveryRequest, uniqueId: UniqueId): TestDescriptor {16        val descriptor = spek.discover(discoveryRequest, uniqueId)17        val forgive = discoveryRequest.configurationParameters.get("forgive").orElse(null)18        forgiveRegex = Regex(forgive)19        require(descriptor.children.isNotEmpty()) {20            "Could not find any specification, check your runtime classpath"21        }22        return descriptor23    }24    override fun execute(request: JUnitExecutionRequest) {25        val default = Locale.getDefault()26        try {27            Locale.setDefault(Locale.UK)28            runSpekWithCustomListener(request)29        } catch (t: Throwable) {30            t.printStackTrace()31            Locale.setDefault(default)32            request.fail(t)33        }34    }35    private fun runSpekWithCustomListener(request: JUnitExecutionRequest) {36        val roots = request.rootTestDescriptor.children37            .filterIsInstance<SpekTestDescriptor>()38            .map(SpekTestDescriptor::scope)39        val executionListener = Spek2ForgivingExecutionListener(40            JUnitEngineExecutionListenerAdapter(request.engineExecutionListener, SpekTestDescriptorFactory()),41            forgiveRegex42        )43        val executionRequest = ExecutionRequest(roots, executionListener)44        SpekRuntime().execute(executionRequest)45    }46    private fun JUnitExecutionRequest.fail(throwable: Throwable) {47        engineExecutionListener.executionFinished(48            rootTestDescriptor,49            TestExecutionResult.failed(throwable)50        )51    }52}...

SpekTestDescriptorFactory.kt

Source:SpekTestDescriptorFactory.kt

1package org.spekframework.spek2.junit2import org.spekframework.spek2.runtime.scope.GroupScopeImpl3import org.spekframework.spek2.runtime.scope.ScopeImpl4class SpekTestDescriptorFactory {5    private val cache = mutableMapOf<ScopeImpl, SpekTestDescriptor>()6    fun create(scope: ScopeImpl): SpekTestDescriptor = createDescriptor(scope)7    private fun createDescriptor(scope: ScopeImpl): SpekTestDescriptor {8        var cached = true9        val descriptor = cache.computeIfAbsent(scope) {10            cached = false11            SpekTestDescriptor(scope, this)12        }13        if (!cached) {14            descriptor.apply {15                if (scope is GroupScopeImpl) {16                    scope.getChildren().forEach { child ->17                        this.addChild(create(child))18                    }19                }20            }21        }22        return descriptor23    }24}...

SpekTestDescriptor

Using AI Code Generation

1import org.spekframework.spek2.Spek 2import org.spekframework.spek2.style.specification.describe 3object CalculatorSpec : Spek({ 4    describe("a calculator") { 5    } 6})7import org.spekframework.spek2.Spek 8import org.spekframework.spek2.style.specification.describe 9object CalculatorSpec : Spek({ 10    describe("a calculator") { 11    } 12})13plugins { 14} 15test { 16    useJUnitPlatform() 17}18plugins { 19} 20test { 21    useJUnitPlatform() 22}

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