ButtonArraysEquality.java revision 14851:980da45565c8 
1/*
2 * Copyright (c) 2008, 2016, 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 %I% %E%
26  @key headful
27  @bug 6315717
28  @summary verifies that InputEvents button masks arrays are the same
29  @author Andrei Dmitriev : area=awt.event
30  @run main ButtonArraysEquality
31 */
32
33import java.awt.*;
34import java.awt.event.*;
35import java.lang.reflect.*;
36import java.security.AccessController;
37import java.security.PrivilegedAction;
38
39// get array InputEvent.BUTTON_MASK via reflection
40// get array InputEvent.BUTTON_DOWN_MASK via reflection
41// compare their lengths and values
42
43public class ButtonArraysEquality {
44    static int [] eventDownMask = new int []{InputEvent.BUTTON1_DOWN_MASK, InputEvent.BUTTON2_DOWN_MASK, InputEvent.BUTTON3_DOWN_MASK};
45
46    public static void main(String []s){
47        int [] buttonDownMasksAPI = new int [MouseInfo.getNumberOfButtons()];
48        for (int i = 0; i < MouseInfo.getNumberOfButtons(); i++){
49            buttonDownMasksAPI[i] = InputEvent.getMaskForButton(i+1);
50            System.out.println("TEST: "+buttonDownMasksAPI[i]);
51        }
52
53        // getButtonDownMasks()
54        Object obj = AccessController.doPrivileged(
55                                            new PrivilegedAction() {
56                                                public Object run() {
57                                                    try {
58                                                        Class clazz = Class.forName("java.awt.event.InputEvent");
59                                                        Method method  = clazz.getDeclaredMethod("getButtonDownMasks",new Class [] {});
60                                                        if (method != null) {
61                                                            method.setAccessible(true);
62                                                            return method.invoke(null, (Object[])null);
63                                                        }
64                                                    }catch (Exception e){
65                                                        throw new RuntimeException("Test failed. Exception occured:", e);
66                                                    }
67                                                    return null;
68                                                }
69                                            });
70
71        int [] buttonDownMasks = new int [Array.getLength(obj)];
72        checkNullAndPutValuesToArray(buttonDownMasks, obj);
73
74        //check lengths: array shouldn't contain less elements then the number of buttons on a mouse
75        if (buttonDownMasks.length < buttonDownMasksAPI.length){
76            throw new RuntimeException("Test failed. The lengths array is less than the number of buttons");
77        }
78
79        // verify values for first three buttons
80        for (int i = 0; i < 3; i++) {
81            if (eventDownMask[i] != buttonDownMasks[i])
82            {
83                System.out.println("Test : "+ i + " | " + " | " +eventDownMask[i] + " | "+ buttonDownMasks[i]);
84                throw new RuntimeException("Failure: masks are not correct for standard buttons");
85            }
86        }
87
88        // verify values for extra buttons if any
89        for (int i = 3; i < MouseInfo.getNumberOfButtons(); i++) {
90            if (buttonDownMasksAPI[i] != buttonDownMasks[i]) {
91                throw new RuntimeException("Failure: masks are not the same for extra buttons");
92            }
93        }
94        System.out.println("Test passed.");
95    }
96
97    public static void checkNullAndPutValuesToArray(int [] array, Object obj){
98        if (obj == null){
99            throw new RuntimeException("Test failed. The array obtained via reflection is "+obj);
100        }
101
102        for (int i = 0; i < Array.getLength(obj); i++){
103            System.out.println("Test (Reflection): "+ Array.getInt(obj, i));
104            array[i] = Array.getInt(obj, i);
105        }
106    }
107}
108