TmpdirRule

junit4 @Rule to create tmp dir from idea SDK

compiler/tests/org/jetbrains/jet/JetTestUtils.java

@@ -240,6 +240,15 @@ public class JetTestUtils {
         filesToDelete.add(file);
     }
 
+    public static void rmrf(File file) {
+        if (file == null) {
+            return;
+        }
+        if (!FileUtil.delete(file)) {
+            throw new RuntimeException("failed to delete " + file);
+        }
+    }
+
     public static final Pattern FILE_PATTERN = Pattern.compile("//\\s*FILE:\\s*(.*)$", Pattern.MULTILINE);
 
     public static JetCoreEnvironment createEnvironmentWithFullJdk(Disposable disposable) {

compiler/tests/org/jetbrains/jet/test/Tmpdir.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2010-2012 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.jet.test;
+
+import com.google.common.io.Files;
+import com.intellij.openapi.util.io.FileUtil;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.jet.JetTestUtils;
+import org.jetbrains.jet.utils.ExceptionUtils;
+import org.junit.rules.TestWatcher;
+import org.junit.runner.Description;
+
+import java.io.File;
+import java.io.IOException;
+
+/**
+ * @author Stepan Koltsov
+ */
+public class Tmpdir extends TestWatcher {
+
+    private File tmpDir;
+
+    @Override
+    protected void starting(Description description) {
+        try {
+            tmpDir = Files.createTempDir().getCanonicalFile();
+        }
+        catch (IOException e) {
+            throw ExceptionUtils.rethrow(e);
+        }
+    }
+
+    @Override
+    protected void succeeded(Description description) {
+        JetTestUtils.rmrf(tmpDir);
+    }
+
+    @Override
+    protected void failed(Throwable e, Description description) {
+        System.err.println("Temp directory: " + tmpDir);
+    }
+
+    @NotNull
+    public File getTmpDir() {
+        return tmpDir;
+    }
+}