1/*
2 * Copyright (c) 1997, 1998, 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/* @test
25   @bug 4027914
26   @summary Check getParent's handling of root directories
27 */
28
29import java.io.File;
30
31
32public class GetParent {
33
34    static void check(String path, String[] parents) throws Exception {
35        File f = new File(path);
36        String p;
37        System.err.print(path + ":");
38        for (int i = 0; i < parents.length; i++) {
39            p = f.getParent();
40            System.err.print(" (" + p + ")");
41            if (p == null)
42                throw new Exception("No parent for " + f);
43            if (! p.equals(parents[i]))
44                throw new Exception("Wrong parent for " + f
45                                    + ": Expected " + parents[i]
46                                    + ", got " + p);
47            f = new File(p);
48        }
49        if (f.getParent() != null)
50            throw new Exception("Too many parents for " + path);
51        System.err.println();
52    }
53
54    static void testUnix() throws Exception {
55        check("foo", new String[] { });
56        check("./foo", new String[] { "." });
57        check("foo/bar/baz", new String[] { "foo/bar", "foo" });
58        check("../../foo", new String[] { "../..", ".." });
59        check("foo//bar", new String[] { "foo" });
60        check("/foo/bar/baz.gorp",
61              new String[] { "/foo/bar", "/foo", "/" });
62    }
63
64    static void testWin32() throws Exception {
65        System.err.println("Win32");
66        check("foo", new String[] { });
67        check(".\\foo", new String[] { "." });
68        check("foo\\bar\\baz", new String[] { "foo\\bar", "foo" });
69        check("..\\..\\foo", new String[] { "..\\..", ".." });
70        check("c:\\foo\\bar\\baz.xxx",
71              new String[] { "c:\\foo\\bar", "c:\\foo", "c:\\" });
72    }
73
74    public static void main(String[] args) throws Exception {
75        if (File.separatorChar == '/') testUnix();
76        if (File.separatorChar == '\\') testWin32();
77    }
78
79}
80