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 package com.oracle.java.testlibrary;
24
25 /**
26 * Simple class to check writeability, invalid and valid values for concrete VMOption
27 */
28 public class TestDynamicVMOption {
29
30 private final String name;
31 private final int value;
32
33 /**
34 * Constructor
35 *
36 * @param name of VM option to test
37 */
38 public TestDynamicVMOption(String name) {
39 this.name = name;
40 this.value = DynamicVMOptionChecker.getIntValue(name);
41 System.out.println(this.name + " = " + this.value);
42 }
43
44 /**
45 * Checks that this value can accept valid percentage values and cannot accept invalid percentage values
46 *
47 * @throws RuntimeException
48 */
49 public void testPercentageValues() {
50 checkInvalidValue(Integer.toString(Integer.MIN_VALUE));
51 checkInvalidValue(Integer.toString(Integer.MAX_VALUE));
52 checkInvalidValue("-10");
53 checkInvalidValue("190");
54 }
55
56 /**
57 * Reads VM option from PlatformMXBean and parse it to integer value
58 *
59 * @return value
60 */
61 public int getIntValue() {
62 return DynamicVMOptionChecker.getIntValue(this.name);
63 }
64
65 /**
66 * Sets VM option value
67 *
68 * @param value to set
69 */
70 public void setIntValue(int value) {
71 DynamicVMOptionChecker.setIntValue(this.name, value);
72 }
73
74 /**
75 * Checks that this VM option is dynamically writable
76 *
77 * @throws RuntimeException if option if not writable
78 * @return true
79 */
80 public boolean checkIsWritable() throws RuntimeException {
81 return DynamicVMOptionChecker.checkIsWritable(this.name);
82 }
83
84 /**
85 * Checks that value for this VM option cannot be set
86 *
87 * @param value to check
88 * @throws RuntimeException on error - when expected exception hasn't been thrown
89 */
90 public void checkInvalidValue(String value) {
91 DynamicVMOptionChecker.checkInvalidValue(this.name, value);
92 }
93
94 /**
95 * Checks that value for this VM option can be set
96 *
97 * @param value to check
98 * @throws RuntimeException on error - when value in VM is not equal to origin
99 */
100 public void checkValidValue(String value) {
101 DynamicVMOptionChecker.checkValidValue(this.name, value);
102 }
103
104 }
--- EOF ---