1 /*
2  * Copyright (c) 2016, 2018, Red Hat, Inc. All rights reserved.
3  *
4  * This code is free software; you can redistribute it and/or modify it
5  * under the terms of the GNU General Public License version 2 only, as
6  * published by the Free Software Foundation.
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8  * This code is distributed in the hope that it will be useful, but WITHOUT
9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
11  * version 2 for more details (a copy is included in the LICENSE file that
12  * accompanied this code).
13  *
14  * You should have received a copy of the GNU General Public License version
15  * 2 along with this work; if not, write to the Free Software Foundation,
16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
17  *
18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
19  * or visit www.oracle.com if you need additional information or have any
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23 
24 /*
25  * @test TestArgumentRanges
26  * @summary Test that Shenandoah arguments are checked for ranges where applicable
27  * @key gc
28  * @requires vm.gc.Shenandoah & !vm.graal.enabled
29  * @library /test/lib
30  * @modules java.base/jdk.internal.misc
31  *          java.management
32  * @run driver TestArgumentRanges
33  */
34 
35 import jdk.test.lib.process.ProcessTools;
36 import jdk.test.lib.process.OutputAnalyzer;
37 
38 public class TestArgumentRanges {
main(String[] args)39     public static void main(String[] args) throws Exception {
40         testRange("ShenandoahGarbageThreshold", 0, 100);
41         testRange("ShenandoahMinFreeThreshold", 0, 100);
42         testRange("ShenandoahAllocationThreshold", 0, 100);
43         testHeuristics();
44     }
45 
testHeuristics()46     private static void testHeuristics() throws Exception {
47 
48         {
49             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
50                     "-XX:+UnlockExperimentalVMOptions",
51                     "-XX:+UseShenandoahGC",
52                     "-XX:ShenandoahGCHeuristics=aggressive",
53                     "-version");
54             OutputAnalyzer output = new OutputAnalyzer(pb.start());
55             output.shouldHaveExitValue(0);
56         }
57         {
58             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
59                     "-XX:+UnlockExperimentalVMOptions",
60                     "-XX:+UseShenandoahGC",
61                     "-XX:ShenandoahGCHeuristics=static",
62                     "-version");
63             OutputAnalyzer output = new OutputAnalyzer(pb.start());
64             output.shouldHaveExitValue(0);
65         }
66         {
67             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
68                     "-XX:+UnlockExperimentalVMOptions",
69                     "-XX:+UseShenandoahGC",
70                     "-XX:ShenandoahGCHeuristics=fluff",
71                     "-version");
72             OutputAnalyzer output = new OutputAnalyzer(pb.start());
73             output.shouldMatch("Unknown -XX:ShenandoahGCHeuristics option");
74             output.shouldHaveExitValue(1);
75         }
76     }
77 
testRange(String option, int min, int max)78     private static void testRange(String option, int min, int max) throws Exception {
79         {
80             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
81                     "-XX:+UnlockExperimentalVMOptions",
82                     "-XX:+UseShenandoahGC",
83                     "-XX:" + option + "=" + (max + 1),
84                     "-version");
85             OutputAnalyzer output = new OutputAnalyzer(pb.start());
86             output.shouldHaveExitValue(1);
87         }
88         {
89             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
90                     "-XX:+UnlockExperimentalVMOptions",
91                     "-XX:+UseShenandoahGC",
92                     "-XX:" + option + "=" + max,
93                     "-version");
94             OutputAnalyzer output = new OutputAnalyzer(pb.start());
95             output.shouldHaveExitValue(0);
96         }
97         {
98             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
99                     "-XX:+UnlockExperimentalVMOptions",
100                     "-XX:+UseShenandoahGC",
101                     "-XX:" + option + "=" + (min - 1),
102                     "-version");
103             OutputAnalyzer output = new OutputAnalyzer(pb.start());
104             output.shouldHaveExitValue(1);
105         }
106         {
107             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",
108                     "-XX:+UnlockExperimentalVMOptions",
109                     "-XX:+UseShenandoahGC",
110                     "-XX:" + option + "=" + min,
111                     "-version");
112             OutputAnalyzer output = new OutputAnalyzer(pb.start());
113             output.shouldHaveExitValue(0);
114         }
115     }
116 }
117