Set virtual files in LightQuickFixTestCase.java to readonly to check if quick-fix clears the read-only flag

java/testFramework/src/com/intellij/codeInsight/daemon/quickFix/LightQuickFixTestCase.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2014 JetBrains s.r.o.
+ * Copyright 2000-2016 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.
@@ -22,6 +22,7 @@ import com.intellij.codeInsight.intention.impl.ShowIntentionActionsHandler;
 import com.intellij.lang.Commenter;
 import com.intellij.lang.LanguageCommenters;
 import com.intellij.lang.injection.InjectedLanguageManager;
+import com.intellij.openapi.application.WriteAction;
 import com.intellij.openapi.command.CommandProcessor;
 import com.intellij.openapi.editor.Editor;
 import com.intellij.openapi.project.Project;
@@ -36,6 +37,7 @@ import com.intellij.testFramework.LightPlatformTestCase;
 import com.intellij.testFramework.fixtures.impl.CodeInsightTestFixtureImpl;
 import com.intellij.util.IncorrectOperationException;
 import com.intellij.util.ObjectUtils;
+import com.intellij.util.io.ReadOnlyAttributeUtil;
 import com.intellij.util.ui.UIUtil;
 import org.intellij.lang.annotations.RegExp;
 import org.jetbrains.annotations.NonNls;
@@ -43,6 +45,7 @@ import org.jetbrains.annotations.NotNull;
 
 import java.io.File;
 import java.io.IOException;
+import java.io.UncheckedIOException;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
@@ -180,7 +183,17 @@ public abstract class LightQuickFixTestCase extends LightDaemonAnalyzerTestCase
   }
 
   protected static void invoke(@NotNull IntentionAction action) throws IncorrectOperationException {
-    ShowIntentionActionsHandler.chooseActionAndInvoke(getFile(), getEditor(), action, action.getText());
+    PsiFile file = getFile();
+    WriteAction.run(() -> {
+      try {
+        // Test that action will automatically clear the read-only attribute if modification is necessary
+        ReadOnlyAttributeUtil.setReadOnlyAttribute(file.getVirtualFile(), true);
+      }
+      catch (IOException e) {
+        throw new UncheckedIOException(e);
+      }
+    });
+    ShowIntentionActionsHandler.chooseActionAndInvoke(file, getEditor(), action, action.getText());
     UIUtil.dispatchAllInvocationEvents();
   }
 

platform/platform-impl/src/com/intellij/openapi/vcs/readOnlyHandler/ReadonlyStatusHandlerImpl.java

@@ -24,7 +24,6 @@ import com.intellij.openapi.components.State;
 import com.intellij.openapi.components.Storage;
 import com.intellij.openapi.components.StoragePathMacros;
 import com.intellij.openapi.project.Project;
-import com.intellij.openapi.util.Condition;
 import com.intellij.openapi.util.MultiValuesMap;
 import com.intellij.openapi.vfs.ReadonlyStatusHandler;
 import com.intellij.openapi.vfs.VfsUtilCore;
@@ -96,6 +95,7 @@ public class ReadonlyStatusHandlerImpl extends ReadonlyStatusHandler implements
     }
     
     if (ApplicationManager.getApplication().isUnitTestMode()) {
+      processFiles(new ArrayList<>(Arrays.asList(fileInfos)), null);
       return createResultStatus(files);
     }