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.core.test; 24 25 import java.io.File; 26 import java.io.IOException; 27 import java.lang.reflect.Field; 28 import java.lang.reflect.Method; 29 import java.nio.file.Files; 30 import java.nio.file.Path; 31 import java.nio.file.Paths; 32 import java.util.Comparator; 33 34 import org.graalvm.compiler.debug.DebugOptions; 35 import org.graalvm.compiler.debug.PathUtilities; 36 import org.graalvm.compiler.options.OptionKey; 37 import org.graalvm.compiler.options.OptionValues; 38 import org.graalvm.compiler.test.AddExports; 39 import org.junit.Assume; 40 import org.junit.Test; 41 42 @AddExports("jdk.internal.vm.compiler/org.graalvm.compiler.printer") 43 public class GraalDebugHandlersFactoryTest extends GraalCompilerTest { 44 45 @Test 46 public void createUniqueTest() throws Exception { 47 Field maxFileNameLengthField = PathUtilities.class.getDeclaredField("MAX_FILE_NAME_LENGTH"); 48 try { 49 maxFileNameLengthField.setAccessible(true); 50 } catch (RuntimeException ex) { 51 Assume.assumeFalse("If InaccessibleObjectException is thrown, skip the test, we are on JDK9", ex.getClass().getSimpleName().equals("InaccessibleObjectException")); 52 } 53 int maxFileNameLength = maxFileNameLengthField.getInt(null); 54 Method createUniqueMethod = PathUtilities.class.getDeclaredMethod("createUnique", OptionValues.class, OptionKey.class, String.class, String.class, String.class, boolean.class); 55 createUniqueMethod.setAccessible(true); 56 Path tmpDir = Files.createTempDirectory(Paths.get("."), "createUniqueTest"); 57 OptionValues options = new OptionValues(OptionValues.asMap(DebugOptions.DumpPath, tmpDir.toString())); 58 try { 59 for (boolean createDirectory : new boolean[]{true, false}) { 60 for (String ext : new String[]{"", ".bgv", ".graph-strings"}) { 61 for (int i = 0; i < maxFileNameLength + 5; i++) { 62 String id = new String(new char[i]).replace('\0', 'i'); 63 String label = ""; 64 createUniqueMethod.invoke(null, options, null, id, label, ext, createDirectory); 65 66 id = ""; 67 label = new String(new char[i]).replace('\0', 'l'); 68 createUniqueMethod.invoke(null, options, null, id, label, ext, createDirectory); 69 } 70 } 71 } 72 } finally { 73 deleteTree(tmpDir); 74 } 75 } 76 77 private static void deleteTree(Path root) throws IOException { 78 Files.walk(root).sorted(Comparator.reverseOrder()).map(Path::toFile).forEach(File::delete); 79 } 80 }