[coroutine][debugger] Unit test support added for Gradle run configurations.

idea/idea-gradle/src/org/jetbrains/kotlin/idea/configuration/KotlinGradleCoroutineDebugProjectResolver.kt

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * 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.idea.configuration
+
+import com.intellij.openapi.diagnostic.Logger
+import com.intellij.openapi.util.registry.Registry
+import com.intellij.openapi.util.text.StringUtil
+import com.intellij.util.Consumer
+import com.intellij.util.SystemProperties
+import org.jetbrains.plugins.gradle.service.project.AbstractProjectResolverExtension
+
+class KotlinGradleCoroutineDebugProjectResolver : AbstractProjectResolverExtension() {
+    val log = Logger.getInstance(this::class.java)
+
+    override fun enhanceTaskProcessing(taskNames: MutableList<String>, jvmParametersSetup: String?, initScriptConsumer: Consumer<String>) {
+        try {
+            if (coroutineDebuggerEnabled())
+                setupCoroutineAgentForJvmForkedTestTasks(initScriptConsumer)
+        } catch (e: Exception) {
+            log.error("Gradle: not possible to attach coroutine debugger agent. Coroutine debugger disabled.", e)
+        }
+    }
+
+    private fun setupCoroutineAgentForJvmForkedTestTasks(initScriptConsumer: Consumer<String>) {
+        val lines = arrayOf(
+            "gradle.taskGraph.beforeTask { Task task ->",
+            "  if (task instanceof Test) {",
+            "    def kotlinxCoroutinesDebugJar = task.classpath.find { it.name.contains(\"kotlinx-coroutines-debug\") }",
+            "    if (kotlinxCoroutinesDebugJar)",
+            "        task.jvmArgs (\"-javaagent:\${kotlinxCoroutinesDebugJar?.absolutePath}\", \"-ea\")",
+            "  }",
+            "}"
+        )
+        val script = StringUtil.join(lines, SystemProperties.getLineSeparator())
+        initScriptConsumer.consume(script)
+    }
+
+    private fun coroutineDebuggerEnabled() = Registry.`is`("kotlin.debugger.coroutines")
+}

idea/jvm-debugger/jvm-debugger-core/src/org/jetbrains/kotlin/idea/debugger/coroutines/CoroutineDumpAction.kt

@@ -102,7 +102,7 @@ class CoroutineDumpAction : AnAction(), AnAction.TransparentUpdate {
             return
         }
         val debuggerSession = DebuggerManagerEx.getInstanceEx(project).context.debuggerSession
-        presentation.isEnabled = debuggerSession != null && debuggerSession.isAttached && Registry.`is`("kotlin.debugger" + ".coroutines")
+        presentation.isEnabled = debuggerSession != null && debuggerSession.isAttached && isCoroutineDebuggerEnabled()
         presentation.isVisible = presentation.isEnabled
     }
 }

idea/jvm-debugger/jvm-debugger-core/src/org/jetbrains/kotlin/idea/debugger/coroutines/CoroutineXDebuggerManagerListener.kt

@@ -91,18 +91,15 @@ internal var Project.listenerCreated: Boolean? by UserDataProperty(Key.create("C
 
 internal fun isCoroutineDebuggerEnabled() = Registry.`is`("kotlin.debugger.coroutines")
 
-internal fun <T : RunConfigurationBase<*>?> initializeCoroutineAgent(
-    params: JavaParameters,
-    it: String?,
-    configuration: T
-): Boolean {
+internal fun initializeCoroutineAgent(params: JavaParameters, it: String?) {
     params.vmParametersList?.add("-javaagent:$it")
     params.vmParametersList?.add("-ea")
+}
+
+internal fun <T : RunConfigurationBase<*>?> registerProjectCoroutineListener(configuration: T) {
     val project = (configuration as RunConfigurationBase<*>).project
     // add listener to put coroutines tab into debugger tab
     if (project.listenerCreated != true) { // prevent multiple listeners creation
         CoroutineXDebuggerManagerListener(project).attach()
-        return true
     }
-    return false
 }

idea/jvm-debugger/jvm-debugger-core/src/org/jetbrains/kotlin/idea/debugger/coroutines/CoroutinesDebugConfigurationExtension.kt

@@ -29,7 +29,8 @@ class CoroutinesDebugConfigurationExtension : RunConfigurationExtension() {
         if (runnerSettings is DebuggingRunnerData) {
             try {
                 val kotlinxCoroutinesClassPathLib = params?.classPath?.pathList?.first { it.contains("kotlinx-coroutines-debug") }
-                initializeCoroutineAgent(params!!, kotlinxCoroutinesClassPathLib, configuration)
+                initializeCoroutineAgent(params!!, kotlinxCoroutinesClassPathLib)
+                registerProjectCoroutineListener(configuration)
             } catch (e: NoSuchElementException) {
                 log.warn("'kotlinx-coroutines-debug' not found in classpath. Coroutine debugger disabled.")
             }

idea/jvm-debugger/jvm-debugger-core/src/org/jetbrains/kotlin/idea/debugger/coroutines/CoroutinesDebugConfigurationExtension.kt.193

@@ -29,7 +29,8 @@ class CoroutinesDebugConfigurationExtension : RunConfigurationExtension() {
         if (runnerSettings is DebuggingRunnerData) {
             try {
                 val kotlinxCoroutinesClassPathLib = params?.classPath?.pathList?.first { it.contains("kotlinx-coroutines-debug") }
-                initializeCoroutineAgent(params!!, kotlinxCoroutinesClassPathLib, configuration)
+                initializeCoroutineAgent(params!!, kotlinxCoroutinesClassPathLib)
+                registerProjectCoroutineListener(configuration)
             } catch (e: NoSuchElementException) {
                 log.warn("'kotlinx-coroutines-debug' not found in classpath. Coroutine debugger disabled.")
             }

idea/resources/META-INF/gradle-java.xml

@@ -12,6 +12,7 @@
         <projectResolve implementation="org.jetbrains.kotlin.idea.configuration.KotlinNonJvmGutterConfigurator" />
         <projectResolve implementation="org.jetbrains.kotlin.idea.configuration.KotlinGradleBuildScriptsResolver" order="first"/>
         <projectResolve implementation="org.jetbrains.kotlin.idea.configuration.KotlinGradleProjectResolverExtension" order="first"/>
+        <projectResolve implementation="org.jetbrains.kotlin.idea.configuration.KotlinGradleCoroutineDebugProjectResolver" order="last"/>
         <projectResolve implementation="org.jetbrains.kotlin.kapt.idea.KaptProjectResolverExtension" order="last"/>
         <projectResolve implementation="org.jetbrains.kotlin.allopen.ide.AllOpenProjectResolverExtension" order="last"/>
         <projectResolve implementation="org.jetbrains.kotlin.noarg.ide.NoArgProjectResolverExtension" order="last"/>