1 /*
   2  * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 package org.graalvm.compiler.graph.test.graphio;
  24 
  25 import java.io.File;
  26 import java.lang.reflect.Method;
  27 import static org.junit.Assert.assertTrue;
  28 import org.junit.Assume;
  29 import org.junit.Test;
  30 
  31 public class GraphSnippetTest {
  32     @Test
  33     public void dumpTheFile() throws Exception {
  34         Class<?> snippets = null;
  35         try {
  36             snippets = Class.forName("org.graalvm.graphio.GraphSnippets");
  37         } catch (ClassNotFoundException notFound) {
  38             Assume.assumeNoException("The snippets class has to be around", notFound);
  39         }
  40         Method dump = null;
  41         try {
  42             dump = snippets.getDeclaredMethod("dump", File.class);
  43             dump.setAccessible(true);
  44         } catch (RuntimeException ex) {
  45             Assume.assumeTrue("Only run the test, if the method is accessible", dump != null && dump.isAccessible());
  46         }
  47         File diamond = File.createTempFile("diamond", ".bgv");
  48         dump.invoke(null, diamond);
  49         assertTrue("File .bgv created: " + diamond, diamond.length() > 50);
  50     }
  51 }