--- /dev/null 2018-06-17 23:18:20.806999507 +0800 +++ new/test/jdk/jfr/api/recording/options/TestName.java 2019-01-29 11:02:13.404076678 +0800 @@ -0,0 +1,92 @@ +/* + * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +package jdk.jfr.api.recording.options; + +import jdk.jfr.Recording; +import jdk.testlibrary.Asserts; +import jdk.testlibrary.jfr.CommonHelper; +import jdk.testlibrary.jfr.VoidFunction; + +/* + * @test + * @summary Test setName(). + * @key jfr + * @library /lib/testlibrary + * @run main/othervm jdk.jfr.api.recording.options.TestName + */ +public class TestName { + + public static void main(String[] args) throws Throwable { + Recording r = new Recording(); + + Asserts.assertNotNull(r.getName(), "Default name should not be null"); + System.out.println("name=" + r.getName()); + Asserts.assertEquals(r.getName(), Long.toString(r.getId()), "Default name != id"); + + testNames(r); + r.start(); + testNames(r); + r.stop(); + testNames(r); + r.close(); + } + + private static void testNames(Recording r) throws Throwable { + System.out.println("Recording state=" + r.getState().name()); + + // Set simple name + String name = "myName"; + r.setName(name); + System.out.println("name=" + r.getName()); + Asserts.assertEquals(name, r.getName(), "Wrong get/set name"); + + // Set null. Should get Exception and old name should be kept. + verifyNull(()->{r.setName(null);}, "No NullPointerException when setName(null)"); + Asserts.assertEquals(name, r.getName(), "Current name overwritten after null"); + + // Set empty name. Should work. + name = ""; + r.setName(name); + System.out.println("name=" + r.getName()); + Asserts.assertEquals(name, r.getName(), "Empty name is expected to work"); + + // Test a long name. + StringBuilder sb = new StringBuilder(500); + while (sb.length() < 400) { + sb.append("LongName-"); + } + name = sb.toString(); + System.out.println("Length of long name=" + name.length()); + r.setName(name); + System.out.println("name=" + r.getName()); + Asserts.assertEquals(name, r.getName(), "Wrong get/set long name"); + } + + private static void verifyNull(VoidFunction f, String msg) throws Throwable { + CommonHelper.verifyException(f, msg, NullPointerException.class); + } + +}