OpsAfterClose.java revision 8729:0242fce0f717 
1/*
2 * Copyright (c) 2007, 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
26 *  @bug 6359397
27 *  @summary Test if FileInputStream methods will check if the stream
28 *          has been closed.
29 */
30
31import java.io.*;
32
33public enum OpsAfterClose {
34
35        READ { boolean check(FileInputStream r) {
36                    try {
37                        r.read();
38                    } catch (IOException io) {
39                        System.out.print("Excep Msg: "+ io.getMessage() + ", ");
40                        return true;
41                    }
42                    return false;
43             } },
44
45        READ_BUF { boolean check(FileInputStream r) {
46                    try {
47                        byte buf[] = new byte[2];
48                        r.read(buf);
49                    } catch (IOException io) {
50                        System.out.print("Excep Msg: "+ io.getMessage() + ", ");
51                        return true;
52                    }
53                    return false;
54            } },
55        READ_BUF_OFF { boolean check(FileInputStream r) {
56                    try {
57                        byte buf[] = new byte[2];
58                        int len = 1;
59                        r.read(buf, 0, len);
60                    } catch (IOException io) {
61                        System.out.print("Excep Msg: "+ io.getMessage() + ", ");
62                        return true;
63                    }
64                    return false;
65             } },
66        GET_CHANNEL { boolean check(FileInputStream r) {
67                    r.getChannel();
68                    return true;
69             } },
70        GET_FD { boolean check(FileInputStream r) {
71                    try {
72                        r.getFD();
73                        return true;
74                    } catch (IOException io) {
75                        System.out.print("Excep Msg: "+ io.getMessage() + ", ");
76                        return false;
77                    }
78             } },
79        SKIP { boolean check(FileInputStream r) {
80                    try {
81                        r.skip(1);
82                    } catch (IOException io) {
83                        System.out.print("Excep Msg: "+ io.getMessage() + ", ");
84                        return true;
85                    }
86                    return false;
87             } },
88        CLOSE { boolean check(FileInputStream r) {
89                try {
90                    r.close();
91                    return true; // No Exception thrown on windows
92                } catch (IOException io) {
93                    System.out.print("Excep Msg: "+ io.getMessage() + ", ");
94                    return true; // Exception thrown on solaris and linux
95                }
96             } };
97
98    abstract boolean check(FileInputStream r);
99
100    public static void main(String args[]) throws Exception {
101
102        boolean failed = false;
103
104        File f = new File(System.getProperty("test.dir", "."),
105                          "f.txt");
106        f.createNewFile();
107        f.deleteOnExit();
108
109        FileInputStream fis = new FileInputStream(f);
110        if (testFileInputStream(fis)) {
111            throw new Exception("Test failed for some of the operation{s}" +
112                " on FileInputStream, check the messages");
113        }
114    }
115
116    private static boolean testFileInputStream(FileInputStream r)
117            throws Exception {
118        r.close();
119        boolean failed = false;
120        boolean result;
121        System.out.println("Testing File:" + r);
122        for (OpsAfterClose op : OpsAfterClose.values()) {
123            result = op.check(r);
124            if (!result) {
125                failed = true;
126            }
127           System.out.println(op + ":" + result);
128        }
129        if (failed) {
130            System.out.println("Test failed for the failed operation{s}" +
131                        " above for the FileInputStream:" + r);
132        }
133        return failed;
134    }
135}
136