1 /* 2 * Copyright (c) 2015, 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 24 import java.io.*; 25 import java.nio.file.*; 26 import java.util.Arrays; 27 28 public class TestUtil { 29 30 final static String fileContent = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; // repeated 31 32 public static Path getAFile(int size) throws IOException { 33 Path p = tempFile(); 34 BufferedWriter writer = Files.newBufferedWriter(p); 35 int len = fileContent.length(); 36 int iterations = size / len; 37 int remainder = size - (iterations * len); 38 for (int i=0; i<iterations; i++) 39 writer.write(fileContent, 0, len); 40 writer.write(fileContent, 0, remainder); 41 writer.close(); 42 return p; 43 } 44 45 public static Path tempFile() { 46 try { 47 Path p = Files.createTempFile("foo", "test"); 48 p.toFile().deleteOnExit(); 49 return p; 50 } catch (IOException e) { 51 throw new UncheckedIOException(e); 52 } 53 } 54 55 public static Void compareFiles(Path path1, Path path2) { 56 //System.err.printf("Comparing %s and %s\n", path1.toString(), path2.toString()); 57 try { 58 long size1 = Files.size(path1); 59 long size2 = Files.size(path2); 60 if (size1 != size2) { 61 String msg = "File sizes do not match " + 62 Long.toString(size1) + "/" + Long.toString(size2); 63 throw new RuntimeException(msg); 64 } 65 compareContents(path1, path2); 66 return null; 67 } catch (IOException e) { 68 throw new UncheckedIOException(e); 69 } 70 } 71 72 static void compareContents(Path path1, Path path2) { 73 try { 74 byte[] b1 = Files.readAllBytes(path1); 75 byte[] b2 = Files.readAllBytes(path2); 76 if (!Arrays.equals(b1, b2)) 77 throw new RuntimeException ("Files do not match"); 78 } catch (IOException e) { 79 throw new UncheckedIOException(e); 80 } 81 } 82 83 }