1 /*
 2  * Copyright (c) 2017, 2018, Red Hat, Inc. 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 /*
26  * @test
27  * @summary Test that Shenandoah humongous threshold args are checked
28  * @requires vm.gc.Shenandoah
29  * @library /test/lib
30  * @modules java.base/jdk.internal.misc
31  *          java.management
32  * @run driver TestHumongousThresholdArgs
33  */
34 
35 import jdk.test.lib.process.ProcessTools;
36 import jdk.test.lib.process.OutputAnalyzer;
37 
38 public class TestHumongousThresholdArgs {
39     public static void main(String[] args) throws Exception {
40         {
41             OutputAnalyzer output = ProcessTools.executeLimitedTestJava(
42                     "-Xmx128m",
43                     "-XX:+UnlockExperimentalVMOptions",
44                     "-XX:+UseShenandoahGC",
45                     "-version");
46             output.shouldHaveExitValue(0);
47         }
48 
49         int[] valid = new int[] {1, 10, 50, 90, 100};
50         int[] invalid = new int[] {-100, -1, 0, 101, 1000};
51 
52         for (int v : valid) {
53             OutputAnalyzer output = ProcessTools.executeLimitedTestJava(
54                     "-Xmx128m",
55                     "-XX:+UnlockExperimentalVMOptions",
56                     "-XX:+UseShenandoahGC",
57                     "-XX:ShenandoahHumongousThreshold=" + v,
58                     "-version");
59             output.shouldHaveExitValue(0);
60         }
61 
62         for (int v : invalid) {
63             OutputAnalyzer output = ProcessTools.executeLimitedTestJava(
64                     "-Xmx128m",
65                     "-XX:+UnlockExperimentalVMOptions",
66                     "-XX:+UseShenandoahGC",
67                     "-XX:ShenandoahHumongousThreshold=" + v,
68                     "-version");
69             output.shouldHaveExitValue(1);
70         }
71     }
72 }