Add base test KotlinMultiFileTestCase with access root disable

idea/tests/org/jetbrains/kotlin/idea/KotlinMultiFileTestCase.kt

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2010-2015 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.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.kotlin.idea
+
+import com.intellij.refactoring.MultiFileTestCase
+import com.intellij.openapi.vfs.newvfs.impl.VfsRootAccess
+import org.jetbrains.kotlin.test.JetTestCaseBuilder
+
+public abstract class KotlinMultiFileTestCase : MultiFileTestCase() {
+    override fun setUp() {
+        super.setUp()
+        VfsRootAccess.allowRootAccess(JetTestCaseBuilder.getHomeDirectory())
+    }
+
+    override fun tearDown() {
+        VfsRootAccess.disallowRootAccess(JetTestCaseBuilder.getHomeDirectory())
+        super.tearDown()
+    }
+}

idea/tests/org/jetbrains/kotlin/idea/debugger/AbstractJetPositionManagerTest.java

@@ -30,7 +30,6 @@ import com.intellij.openapi.project.Project;
 import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.psi.PsiDocumentManager;
-import com.intellij.refactoring.MultiFileTestCase;
 import com.intellij.testFramework.PsiTestUtil;
 import com.sun.jdi.Location;
 import com.sun.jdi.ReferenceType;
@@ -40,6 +39,7 @@ import org.jetbrains.kotlin.backend.common.output.OutputFile;
 import org.jetbrains.kotlin.backend.common.output.OutputFileCollection;
 import org.jetbrains.kotlin.codegen.GenerationUtils;
 import org.jetbrains.kotlin.codegen.state.GenerationState;
+import org.jetbrains.kotlin.idea.KotlinMultiFileTestCase;
 import org.jetbrains.kotlin.idea.PluginTestCaseBase;
 import org.jetbrains.kotlin.idea.project.PluginJetFilesProvider;
 import org.jetbrains.kotlin.psi.JetFile;
@@ -52,7 +52,7 @@ import java.util.Map;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-public abstract class AbstractJetPositionManagerTest extends MultiFileTestCase {
+public abstract class AbstractJetPositionManagerTest extends KotlinMultiFileTestCase {
     // Breakpoint is given as a line comment on a specific line, containing the regexp to match the name of the class where that line
     // can be found. This pattern matches against these line comments and saves the class name in the first group
     private static final Pattern BREAKPOINT_PATTERN = Pattern.compile("^.*//\\s*(.+)\\s*$");
@@ -135,7 +135,7 @@ public abstract class AbstractJetPositionManagerTest extends MultiFileTestCase {
     }
 
     @Override
-    public void tearDown() throws Exception {
+    public void tearDown() {
         if (debugProcess != null) {
             debugProcess.dispose();
         }

idea/tests/org/jetbrains/kotlin/idea/refactoring/move/AbstractJetMoveTest.kt

@@ -55,8 +55,9 @@ import org.jetbrains.kotlin.psi.JetFile
 import org.jetbrains.kotlin.idea.search.allScope
 import org.jetbrains.kotlin.test.ConfigLibraryUtil
 import org.jetbrains.kotlin.idea.util.application.runWriteAction
+import org.jetbrains.kotlin.idea.KotlinMultiFileTestCase
 
-public abstract class AbstractJetMoveTest : MultiFileTestCase() {
+public abstract class AbstractJetMoveTest : KotlinMultiFileTestCase() {
     protected fun doTest(path: String) {
         fun extractCaretOffset(doc: Document): Int {
             return runWriteAction {
@@ -64,7 +65,7 @@ public abstract class AbstractJetMoveTest : MultiFileTestCase() {
                 val offset = text.indexOf("<caret>")
 
                 if (offset >= 0) {
-                    text.delete(offset, offset + "<caret>".length)
+                    text.delete(offset, offset + "<caret>".length())
                     doc.setText(text.toString())
                 }
 

idea/tests/org/jetbrains/kotlin/idea/refactoring/rename/AbstractRenameTest.kt

@@ -48,6 +48,7 @@ import org.jetbrains.kotlin.idea.caches.resolve.analyzeFully
 import org.jetbrains.kotlin.resolve.DescriptorToSourceUtils
 import com.intellij.refactoring.BaseRefactoringProcessor.ConflictsInTestsException
 import com.intellij.refactoring.util.CommonRefactoringUtil.RefactoringErrorHintException
+import org.jetbrains.kotlin.idea.KotlinMultiFileTestCase
 
 private enum class RenameType {
     JAVA_CLASS
@@ -58,7 +59,7 @@ private enum class RenameType {
     KOTLIN_PACKAGE
 }
 
-public abstract class AbstractRenameTest : MultiFileTestCase() {
+public abstract class AbstractRenameTest : KotlinMultiFileTestCase() {
     inner class TestContext(
             val project: Project = getProject()!!,
             val javaFacade: JavaPsiFacade = getJavaFacade()!!,
@@ -168,7 +169,7 @@ public abstract class AbstractRenameTest : MultiFileTestCase() {
             val fileFqn = jetFile.getPackageFqName()
             Assert.assertTrue("File '${mainFilePath}' should have package containing ${fqn}", fileFqn.isSubpackageOf(fqn))
 
-            val packageSegment = jetFile.getPackageDirective()!!.getPackageNames()[fqn.pathSegments().size - 1]
+            val packageSegment = jetFile.getPackageDirective()!!.getPackageNames()[fqn.pathSegments().size() - 1]
             val segmentReference = packageSegment.getReference()!!
 
             val psiElement = segmentReference.resolve()!!