Support LANGUAGE_VERSION directive in quick fix tests

idea/idea-test-framework/src/org/jetbrains/kotlin/idea/test/KotlinLightCodeInsightFixtureTestCase.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2015 JetBrains s.r.o.
+ * Copyright 2010-2017 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,8 +23,11 @@ import com.intellij.openapi.actionSystem.ActionPlaces
 import com.intellij.openapi.actionSystem.AnActionEvent
 import com.intellij.openapi.actionSystem.Presentation
 import com.intellij.openapi.actionSystem.ex.ActionManagerEx
+import com.intellij.openapi.application.WriteAction
 import com.intellij.openapi.editor.ex.EditorEx
+import com.intellij.openapi.externalSystem.service.project.IdeModifiableModelsProviderImpl
 import com.intellij.openapi.module.Module
+import com.intellij.openapi.project.Project
 import com.intellij.openapi.startup.StartupManager
 import com.intellij.openapi.util.io.FileUtil
 import com.intellij.openapi.util.text.StringUtil
@@ -32,7 +35,10 @@ import com.intellij.openapi.vfs.newvfs.impl.VfsRootAccess
 import com.intellij.testFramework.LightProjectDescriptor
 import com.intellij.testFramework.LoggedErrorProcessor
 import org.apache.log4j.Logger
+import org.jetbrains.kotlin.config.LanguageFeature
 import org.jetbrains.kotlin.idea.actions.internal.KotlinInternalMode
+import org.jetbrains.kotlin.idea.facet.configureFacet
+import org.jetbrains.kotlin.idea.facet.getOrCreateFacet
 import org.jetbrains.kotlin.test.InTextDirectivesUtils
 import org.jetbrains.kotlin.test.KotlinTestUtils
 import org.jetbrains.kotlin.test.TestMetadata
@@ -171,3 +177,19 @@ abstract class KotlinLightCodeInsightFixtureTestCase : KotlinLightCodeInsightFix
         return this::class.findAnnotation<TestMetadata>()?.value ?: super.getTestDataPath()
     }
 }
+
+fun configureLanguageVersion(fileText: String, project: Project, module: Module) {
+    val version = InTextDirectivesUtils.findStringWithPrefixes(fileText, "// LANGUAGE_VERSION: ")
+    if (version != null) {
+        val accessToken = WriteAction.start()
+        try {
+            val modelsProvider = IdeModifiableModelsProviderImpl(project)
+            val facet = module.getOrCreateFacet(modelsProvider, useProjectSettings = false)
+            facet.configureFacet(version, LanguageFeature.State.DISABLED, null, modelsProvider)
+            modelsProvider.commit()
+        }
+        finally {
+            accessToken.finish()
+        }
+    }
+}

idea/tests/org/jetbrains/kotlin/idea/inspections/AbstractLocalInspectionTest.kt

@@ -18,18 +18,14 @@ package org.jetbrains.kotlin.idea.inspections
 
 import com.google.common.collect.Lists
 import com.intellij.codeInspection.ProblemDescriptor
-import com.intellij.openapi.application.WriteAction
-import com.intellij.openapi.externalSystem.service.project.IdeModifiableModelsProviderImpl
 import com.intellij.openapi.util.SystemInfo
 import com.intellij.openapi.util.io.FileUtil
 import com.intellij.openapi.vfs.VirtualFile
 import junit.framework.ComparisonFailure
 import junit.framework.TestCase
-import org.jetbrains.kotlin.config.LanguageFeature
-import org.jetbrains.kotlin.idea.facet.configureFacet
-import org.jetbrains.kotlin.idea.facet.getOrCreateFacet
 import org.jetbrains.kotlin.idea.test.DirectiveBasedActionUtils
 import org.jetbrains.kotlin.idea.test.KotlinLightCodeInsightFixtureTestCase
+import org.jetbrains.kotlin.idea.test.configureLanguageVersion
 import org.jetbrains.kotlin.idea.util.application.executeWriteCommand
 import org.jetbrains.kotlin.psi.KtFile
 import org.jetbrains.kotlin.psi.psiUtil.startOffset
@@ -86,19 +82,7 @@ abstract class AbstractLocalInspectionTest : KotlinLightCodeInsightFixtureTestCa
         val fileText = FileUtil.loadFile(mainFile, true)
         TestCase.assertTrue("\"<caret>\" is missing in file \"$mainFile\"", fileText.contains("<caret>"))
 
-        val version = InTextDirectivesUtils.findStringWithPrefixes(fileText, "// LANGUAGE_VERSION: ")
+        configureLanguageVersion(fileText, project, module)
-        if (version != null) {
-            val accessToken = WriteAction.start()
-            try {
-                val modelsProvider = IdeModifiableModelsProviderImpl(project)
-                val facet = module.getOrCreateFacet(modelsProvider, useProjectSettings = false)
-                facet.configureFacet(version, LanguageFeature.State.DISABLED, null, modelsProvider)
-                modelsProvider.commit()
-            }
-            finally {
-                accessToken.finish()
-            }
-        }
 
         val minJavaVersion = InTextDirectivesUtils.findStringWithPrefixes(fileText, "// MIN_JAVA_VERSION: ")
         if (minJavaVersion != null && !SystemInfo.isJavaVersionAtLeast(minJavaVersion)) return

idea/tests/org/jetbrains/kotlin/idea/quickfix/AbstractQuickFixTest.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2015 JetBrains s.r.o.
+ * Copyright 2010-2017 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -43,7 +43,10 @@ import java.io.IOException
 abstract class AbstractQuickFixTest : KotlinLightCodeInsightFixtureTestCase() {
     @Throws(Exception::class)
     protected fun doTest(beforeFileName: String) {
-        enableInspections(beforeFileName)
+        val beforeFileText = FileUtil.loadFile(File(beforeFileName))
+        configureLanguageVersion(beforeFileText, project, module)
+
+        enableInspections(beforeFileName, beforeFileText)
 
         doKotlinQuickFixTest(beforeFileName)
         checkForUnexpectedErrors()
@@ -140,8 +143,7 @@ abstract class AbstractQuickFixTest : KotlinLightCodeInsightFixtureTestCase() {
         }
     }
 
-    private fun enableInspections(beforeFileName: String) {
+    private fun enableInspections(beforeFileName: String, beforeFileText: String) {
-        val beforeFileText = FileUtil.loadFile(File(beforeFileName))
         val toolsStrings = InTextDirectivesUtils.findListWithPrefixes(beforeFileText, "TOOL:")
         if (toolsStrings.isNotEmpty()) {
             val inspections =  toolsStrings.map { toolFqName ->