1 /* 2 * Copyright (c) 2016, 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 /* 25 * @test 26 * @bug 8143366 27 * @summary Check that control chars are displayed correctly 28 * @modules jdk.jdeps/com.sun.tools.javap 29 * @run testng ControlCharTest 30 */ 31 32 import org.testng.Assert; 33 import org.testng.annotations.AfterClass; 34 import org.testng.annotations.BeforeClass; 35 import org.testng.annotations.DataProvider; 36 import org.testng.annotations.Test; 37 38 import java.io.IOException; 39 import java.io.PrintWriter; 40 import java.nio.file.Files; 41 import java.nio.file.Path; 42 import java.nio.file.Paths; 43 import java.util.Scanner; 44 import java.util.regex.Pattern; 45 46 public class ControlCharTest { 47 private String classpath; 48 private Path output; 49 private Pattern ptrn; 50 51 @BeforeClass initialize()52 public void initialize() throws Exception { 53 String testClasses = System.getProperty("test.classes", "."); 54 classpath = "-classpath " + testClasses + " ControlCharTest$Strings"; 55 String userdir = System.getProperty("user.dir", "."); 56 output = Paths.get(userdir, "output.txt"); 57 String regex = Pattern.quote("\\u0001\\u0002\\u0003") // \u0001\u0002\u0003 58 + ".+123.+" // 123 59 + Pattern.quote("\\\\u0000") // \\u0000 60 + ".+" 61 + Pattern.quote("\\u0000") // \u0000 62 ; 63 ptrn = Pattern.compile(regex, Pattern.DOTALL); 64 } 65 66 @AfterClass close()67 public void close() throws IOException { 68 Files.deleteIfExists(output); 69 } 70 71 @DataProvider(name = "options") createData()72 public Object[][] createData() { 73 return new Object[][] { 74 { "-v", ""}, 75 { "-constants", ""} 76 }; 77 } 78 @Test(dataProvider = "options") test(String option, String ignore)79 public void test(String option, String ignore) throws Exception { 80 String cmdline = option + " " + classpath; 81 javap(cmdline.split(" +")); 82 try (Scanner scnr = new Scanner(output)) { 83 Assert.assertNotNull(scnr.findWithinHorizon(ptrn, 0)); 84 } 85 } 86 javap(String... args)87 private void javap(String... args) throws Exception { 88 try (PrintWriter out = new PrintWriter(output.toFile())) { 89 int rc = com.sun.tools.javap.Main.run(args, out); 90 if (rc < 0) 91 throw new Exception("javap exited, rc=" + rc); 92 } 93 } 94 95 // small class to test 96 static class Strings { 97 static final String s = "\1\2\3"; 98 static final String s1 = "123"; 99 static final String s2 = "\\u0000"; 100 static final String s3 = "\0"; f()101 static String f() { return s + s1 + s2 + s3; } 102 } 103 } 104 105 106