Gradle, JS: nodejs target

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/KotlinJsTargetConfigurator.kt

@@ -74,7 +74,7 @@ class KotlinJsSingleTargetConfigurator(kotlinPluginVersion: String) :
     override fun newTestsConfigurator(compilation: KotlinJsCompilation) =
         object : KotlinJsCompilationTestsConfigurator(compilation) {
             override fun configureDefaultTestFramework(it: KotlinJsTest) {
-                it.useMocha { }
+                it.useKarma { }
             }
         }
 }

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/nodejs/NodeJsExec.kt

@@ -0,0 +1,45 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.gradle.targets.js.nodejs
+
+import org.gradle.api.tasks.AbstractExecTask
+import org.gradle.api.tasks.Internal
+import org.jetbrains.kotlin.gradle.targets.js.npm.npmProject
+import org.jetbrains.kotlin.gradle.tasks.Kotlin2JsCompile
+import java.io.File
+
+class NodeJsExec : AbstractExecTask<NodeJsExec>(NodeJsExec::class.java) {
+    private val npmProject by lazy { project.npmProject }
+
+    init {
+        val nodeJs = NodeJsPlugin.apply(project).root
+        dependsOn(nodeJs.nodeJsSetupTask)
+
+        executable = nodeJs.environment.nodeExecutable
+        workingDir = project.npmProject.nodeWorkDir
+    }
+
+    @Internal
+    var script: String? = null
+
+    fun require(moduleName: String) {
+        args("--require", moduleName)
+    }
+
+    fun requireSourceMapSupport() {
+        require("kotlin-test-nodejs-runner/kotlin-nodejs-source-map-support.js")
+    }
+
+    fun script(file: File) {
+        check(script == null) {
+            "Script was already set to $script"
+        }
+        script = file.canonicalFile.relativeToOrSelf(npmProject.nodeWorkDir).path
+    }
+
+    fun compileOutput(compilationTask: Kotlin2JsCompile) =
+        script(npmProject.compileOutput(compilationTask))
+}

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/npm/NpmProject.kt

@@ -46,7 +46,7 @@ open class NpmProject(
             if (hoistGradleNodeModules) project.rootProject.npmProject.nodeModulesDir
             else nodeModulesDir
 
-    open fun moduleOutput(compilationTask: Kotlin2JsCompile): File {
+    open fun compileOutput(compilationTask: Kotlin2JsCompile): File {
         return compileOutputCopyDest?.resolve(compilationTask.outputFile.name) ?: compilationTask.outputFile
     }
 

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/webpack/KotlinWebpack.kt

@@ -132,7 +132,7 @@ open class KotlinWebpack : DefaultTask() {
 
                 it.dependsOn(compileKotlinTask)
 
-                it.entry = npmProject.moduleOutput(compileKotlinTask)
+                it.entry = npmProject.compileOutput(compileKotlinTask)
 
                 it.outputs.upToDateWhen { false }
             }
@@ -148,7 +148,7 @@ open class KotlinWebpack : DefaultTask() {
                 it.dependsOn(compileKotlinTask)
 
                 it.bin = "webpack-dev-server"
-                it.entry = npmProject.moduleOutput(compileKotlinTask)
+                it.entry = npmProject.compileOutput(compileKotlinTask)
 
                 val projectDir = compilation.target.project.projectDir.canonicalPath
                 it.devServer = KotlinWebpackConfig.DevServer(

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/nodejs/KotlinNodeJsSingleTargetConfigurator.kt

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.gradle.targets.nodejs
+
+import org.jetbrains.kotlin.gradle.plugin.KotlinCompilation
+import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinJsCompilation
+import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinOnlyTarget
+import org.jetbrains.kotlin.gradle.targets.js.KotlinJsCompilationTestsConfigurator
+import org.jetbrains.kotlin.gradle.targets.js.KotlinJsTargetConfigurator
+import org.jetbrains.kotlin.gradle.targets.js.nodejs.NodeJsExec
+import org.jetbrains.kotlin.gradle.targets.js.npm.npmProject
+import org.jetbrains.kotlin.gradle.targets.js.testing.KotlinJsTest
+import org.jetbrains.kotlin.gradle.tasks.createOrRegisterTask
+
+class KotlinNodeJsSingleTargetConfigurator(kotlinPluginVersion: String) :
+    KotlinJsTargetConfigurator(kotlinPluginVersion) {
+
+    override fun configureTarget(target: KotlinOnlyTarget<KotlinJsCompilation>) {
+        super.configureTarget(target)
+        configureApplication(target)
+
+
+    }
+
+    private fun configureApplication(target: KotlinOnlyTarget<KotlinJsCompilation>) {
+        target.compilations.all { compilation ->
+            if (compilation.name == KotlinCompilation.MAIN_COMPILATION_NAME) {
+                // source maps support
+                compilation.dependencies {
+                    runtimeOnly(kotlin("test-nodejs-runner"))
+                }
+
+                val project = target.project
+                project.createOrRegisterTask<NodeJsExec>("run") {
+                    it.args(
+                        project.npmProject.compileOutput(compilation.compileKotlinTask),
+                        "--require", "kotlin-test-nodejs-runner/kotlin-nodejs-source-map-support.js"
+                    )
+                }
+            }
+        }
+    }
+
+    override fun newTestsConfigurator(compilation: KotlinJsCompilation) =
+        object : KotlinJsCompilationTestsConfigurator(compilation) {
+            override fun configureDefaultTestFramework(it: KotlinJsTest) {
+                it.useNodeJs { }
+            }
+        }
+}