--- /dev/null	2017-03-16 11:03:49.895616831 -0700
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.graph.test/src/org/graalvm/compiler/graph/test/graphio/GraphSnippetTest.java	2017-11-03 23:57:49.523269712 -0700
@@ -0,0 +1,51 @@
+/*
+ * 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.graph.test.graphio;
+
+import java.io.File;
+import java.lang.reflect.Method;
+import static org.junit.Assert.assertTrue;
+import org.junit.Assume;
+import org.junit.Test;
+
+public class GraphSnippetTest {
+    @Test
+    public void dumpTheFile() throws Exception {
+        Class<?> snippets = null;
+        try {
+            snippets = Class.forName("org.graalvm.graphio.GraphSnippets");
+        } catch (ClassNotFoundException notFound) {
+            Assume.assumeNoException("The snippets class has to be around", notFound);
+        }
+        Method dump = null;
+        try {
+            dump = snippets.getDeclaredMethod("dump", File.class);
+            dump.setAccessible(true);
+        } catch (RuntimeException ex) {
+            Assume.assumeTrue("Only run the test, if the method is accessible", dump != null && dump.isAccessible());
+        }
+        File diamond = File.createTempFile("diamond", ".bgv");
+        dump.invoke(null, diamond);
+        assertTrue("File .bgv created: " + diamond, diamond.length() > 50);
+    }
+}