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comparison test/gc/whitebox/TestWBGC.java @ 20358:b95d569d10c1

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8055953: [TESTBUG] Fix for 8055098 does not contain unit test Summary: Add missing unit test. Reviewed-by: tschatzl Contributed-by: Leonid Mesnik <leonid.mesnik@oracle.com>
author tschatzl
date Tue, 26 Aug 2014 14:15:42 +0200
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20357:4bfc44ba0d19 20358:b95d569d10c1
1 /*
2 * Copyright (c) 2014, 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 TestWBGC
26 * @bug 8055098
27 * @summary Test verify that WB methods isObjectInOldGen and youngGC works correctly.
28 * @library /testlibrary /testlibrary/whitebox
29 * @build TestWBGC
30 * @run main ClassFileInstaller sun.hotspot.WhiteBox
31 * @run driver TestWBGC
32 */
33 import com.oracle.java.testlibrary.*;
34 import sun.hotspot.WhiteBox;
35
36 public class TestWBGC {
37
38 public static void main(String args[]) throws Exception {
39 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
40 true,
41 "-Xbootclasspath/a:.",
42 "-XX:+UnlockDiagnosticVMOptions",
43 "-XX:+WhiteBoxAPI",
44 "-XX:MaxTenuringThreshold=1",
45 "-XX:+PrintGC",
46 GCYoungTest.class.getName());
47
48 OutputAnalyzer output = new OutputAnalyzer(pb.start());
49 System.out.println(output.getStdout());
50 output.shouldHaveExitValue(0);
51 output.shouldContain("WhiteBox Initiated Young GC");
52 output.shouldNotContain("Full");
53 // To be sure that we don't provoke Full GC additionaly to young
54 }
55
56 public static class GCYoungTest {
57 static WhiteBox wb = WhiteBox.getWhiteBox();
58 public static Object obj;
59
60 public static void main(String args[]) {
61 obj = new Object();
62 Asserts.assertFalse(wb.isObjectInOldGen(obj));
63 wb.youngGC();
64 wb.youngGC();
65 // 2 young GC is needed to promote object into OldGen
66 Asserts.assertTrue(wb.isObjectInOldGen(obj));
67 }
68 }
69 }