1 /* 2 * Copyright (c) 2018, 2019, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package jdk.jfr.api.recording.options; 27 28 import jdk.jfr.Recording; 29 import jdk.testlibrary.Asserts; 30 import jdk.testlibrary.jfr.CommonHelper; 31 import jdk.testlibrary.jfr.VoidFunction; 32 33 /* 34 * @test 35 * @summary Test setName(). 36 * @key jfr 37 * @library /lib/testlibrary 38 * @run main/othervm jdk.jfr.api.recording.options.TestName 39 */ 40 public class TestName { 41 42 public static void main(String[] args) throws Throwable { 43 Recording r = new Recording(); 44 45 Asserts.assertNotNull(r.getName(), "Default name should not be null"); 46 System.out.println("name=" + r.getName()); 47 Asserts.assertEquals(r.getName(), Long.toString(r.getId()), "Default name != id"); 48 49 testNames(r); 50 r.start(); 51 testNames(r); 52 r.stop(); 53 testNames(r); 54 r.close(); 55 } 56 57 private static void testNames(Recording r) throws Throwable { 58 System.out.println("Recording state=" + r.getState().name()); 59 60 // Set simple name 61 String name = "myName"; 62 r.setName(name); 63 System.out.println("name=" + r.getName()); 64 Asserts.assertEquals(name, r.getName(), "Wrong get/set name"); 65 66 // Set null. Should get Exception and old name should be kept. 67 verifyNull(()->{r.setName(null);}, "No NullPointerException when setName(null)"); 68 Asserts.assertEquals(name, r.getName(), "Current name overwritten after null"); 69 70 // Set empty name. Should work. 71 name = ""; 72 r.setName(name); 73 System.out.println("name=" + r.getName()); 74 Asserts.assertEquals(name, r.getName(), "Empty name is expected to work"); 75 76 // Test a long name. 77 StringBuilder sb = new StringBuilder(500); 78 while (sb.length() < 400) { 79 sb.append("LongName-"); 80 } 81 name = sb.toString(); 82 System.out.println("Length of long name=" + name.length()); 83 r.setName(name); 84 System.out.println("name=" + r.getName()); 85 Asserts.assertEquals(name, r.getName(), "Wrong get/set long name"); 86 } 87 88 private static void verifyNull(VoidFunction f, String msg) throws Throwable { 89 CommonHelper.verifyException(f, msg, NullPointerException.class); 90 } 91 92 }