Gradle IT: Intercept and log Gradle process output on import failures

idea/idea-gradle/tests/org/jetbrains/kotlin/gradle/ImportAndCheckNavigation.kt

@@ -6,7 +6,9 @@
 package org.jetbrains.kotlin.gradle
 
 import com.intellij.openapi.vfs.VirtualFile
-import com.intellij.psi.*
+import com.intellij.psi.PsiComment
+import com.intellij.psi.PsiReference
+import com.intellij.psi.PsiWhiteSpace
 import com.intellij.psi.util.PsiTreeUtil
 import com.intellij.testFramework.runInEdtAndGet
 import org.jetbrains.kotlin.idea.codeInsight.gradle.MasterPluginVersionGradleImportingTestCase
@@ -23,7 +25,7 @@ class ImportAndCheckNavigation : MasterPluginVersionGradleImportingTestCase() {
     @Test
     @PluginTargetVersions(gradleVersion = "6.0+", pluginVersion = "1.4+", gradleVersionForLatestPlugin = mppImportTestMinVersionForMaster)
     fun testNavigationToCommonizedLibrary() {
-        val files = configureAndImportProject()
+        val files = importProjectFromTestData()
 
         files.forEach { vFile ->
             val referencesToTest = vFile.collectReferencesToTest()
@@ -48,12 +50,6 @@ class ImportAndCheckNavigation : MasterPluginVersionGradleImportingTestCase() {
 
     override fun testDataDirName() = "importAndCheckNavigation"
 
-    private fun configureAndImportProject(): List<VirtualFile> {
-        val files = configureByFiles()
-        importProject()
-        return files
-    }
-
     private fun VirtualFile.collectReferencesToTest(): Map<PsiReference, String> {
         if (extension != "kt") return emptyMap()
 

idea/idea-gradle/tests/org/jetbrains/kotlin/idea/codeInsight/gradle/GradleImportingTestCase.kt

@@ -54,6 +54,7 @@ import org.gradle.wrapper.GradleWrapperMain
 import org.gradle.wrapper.PathAssembler
 import org.intellij.lang.annotations.Language
 import org.jetbrains.annotations.NonNls
+import org.jetbrains.kotlin.idea.test.GradleProcessOutputInterceptor
 import org.jetbrains.kotlin.idea.test.KotlinSdkCreationChecker
 import org.jetbrains.kotlin.idea.test.PluginTestCaseBase
 import org.jetbrains.kotlin.idea.util.getProjectJdkTableSafe
@@ -162,6 +163,8 @@ abstract class GradleImportingTestCase : ExternalSystemImportingTestCase() {
             "${jvmHeapArgsByGradleVersion(gradleVersion)} -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=${System.getProperty("user.dir")}"
 
         sdkCreationChecker = KotlinSdkCreationChecker()
+
+        GradleProcessOutputInterceptor.install(testRootDisposable)
     }
 
     override fun tearDown() {
@@ -243,6 +246,32 @@ abstract class GradleImportingTestCase : ExternalSystemImportingTestCase() {
         super.importProject(config)
     }
 
+    override fun handleImportFailure(errorMessage: String, errorDetails: String?) {
+        val gradleOutput = GradleProcessOutputInterceptor.getInstance()?.getOutput().orEmpty()
+
+        // Typically Gradle error message consists of a line with the description of the error followed by
+        // a multi-line stacktrace. The idea is to cut off the stacktrace if it is already contained in
+        // the intercepted Gradle process output to avoid unnecessary verbosity.
+        val compactErrorMessage = when (val indexOfNewLine = errorMessage.indexOf('\n')) {
+            -1 -> errorMessage
+            else -> {
+                val compactErrorMessage = errorMessage.substring(0, indexOfNewLine)
+                val theRest = errorMessage.substring(indexOfNewLine + 1)
+                if (theRest in gradleOutput) compactErrorMessage else errorMessage
+            }
+        }
+
+        val failureMessage = buildString {
+            append("Gradle import failed: ").append(compactErrorMessage).append('\n')
+            if (!errorDetails.isNullOrBlank()) append("Error details: ").append(errorDetails).append('\n')
+            append("Gradle process output (BEGIN):\n")
+            append(gradleOutput)
+            if (!gradleOutput.endsWith('\n')) append('\n')
+            append("Gradle process output (END)")
+        }
+        fail(failureMessage)
+    }
+
     protected open fun injectRepo(@NonNls @Language("Groovy") config: String?): String {
         var config = config ?: ""
         config = """allprojects {