--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/DumpPathTest.java	Mon Nov 06 20:29:49 2017 -0800
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package org.graalvm.compiler.core.test;
+
+import java.io.IOException;
+import java.nio.file.DirectoryStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import org.graalvm.compiler.debug.DebugOptions;
+import org.graalvm.compiler.options.OptionKey;
+import org.graalvm.compiler.options.OptionValues;
+import org.graalvm.util.EconomicMap;
+import org.junit.Test;
+
+/**
+ * Check that setting the dump path results in files ending up in the right directory with matching
+ * names.
+ */
+public class DumpPathTest extends GraalCompilerTest {
+
+    public static Object snippet() {
+        return new String("snippet");
+    }
+
+    @Test
+    public void testDump() throws IOException {
+        Path dumpDirectoryPath = Files.createTempDirectory("DumpPathTest");
+        String[] extensions = new String[]{".cfg", ".bgv", ".graph-strings"};
+        EconomicMap<OptionKey<?>, Object> overrides = OptionValues.newOptionMap();
+        overrides.put(DebugOptions.DumpPath, dumpDirectoryPath.toString());
+        overrides.put(DebugOptions.PrintGraphFile, true);
+        overrides.put(DebugOptions.PrintCanonicalGraphStrings, true);
+        overrides.put(DebugOptions.Dump, "*");
+
+        // Generate dump files.
+        test(new OptionValues(getInitialOptions(), overrides), "snippet");
+        // Check that Ideal files got created, in the right place.
+        checkForFiles(dumpDirectoryPath, extensions);
+
+        // Clean up the generated files.
+        scrubDirectory(dumpDirectoryPath);
+    }
+
+    /**
+     * Check that the given directory contains file or directory names with all the given
+     * extensions.
+     */
+    private static void checkForFiles(Path directoryPath, String[] extensions) throws IOException {
+        String[] paths = new String[extensions.length];
+        try (DirectoryStream<Path> stream = Files.newDirectoryStream(directoryPath)) {
+            for (Path filePath : stream) {
+                String fileName = filePath.getFileName().toString();
+                for (int i = 0; i < extensions.length; i++) {
+                    String extension = extensions[i];
+                    if (fileName.endsWith(extensions[i])) {
+                        assertTrue(paths[i] == null, "multiple files found for %s in %s", extension, directoryPath);
+                        paths[i] = fileName.replace(extensions[i], "");
+                    }
+                }
+            }
+        }
+        for (int i = 0; i < paths.length; i++) {
+            assertTrue(paths[i] != null, "missing file for extension %s in %s", extensions[i], directoryPath);
+        }
+        // Ensure that all file names are the same.
+        for (int i = 1; i < paths.length; i++) {
+            assertTrue(paths[0].equals(paths[i]), paths[0] + " != " + paths[i]);
+        }
+    }
+
+    /**
+     * Remove the temporary directory.
+     */
+    private static void scrubDirectory(Path directoryPath) {
+        try {
+            try (DirectoryStream<Path> stream = Files.newDirectoryStream(directoryPath)) {
+                for (Path filePath : stream) {
+                    if (Files.isRegularFile(filePath)) {
+                        Files.delete(filePath);
+                    } else if (Files.isDirectory(filePath)) {
+                        scrubDirectory(filePath);
+                    }
+                }
+            }
+            Files.delete(directoryPath);
+        } catch (IOException ioe) {
+            ioe.printStackTrace();
+        }
+    }
+}