Basic.java revision 2824:f439d8b1e84a 
1/*
2 * Copyright (c) 2008, 2009, 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 4313887 6873621 6979526
26 * @summary Unit test for java.nio.file.FileStore
27 * @library ..
28 */
29
30import java.nio.file.*;
31import java.nio.file.attribute.*;
32import java.io.IOException;
33import java.util.*;
34
35public class Basic {
36
37    public static void main(String[] args) throws IOException {
38        Path dir = TestUtil.createTemporaryDirectory();
39        try {
40            doTests(dir);
41        } finally {
42            TestUtil.removeAll(dir);
43        }
44    }
45
46    static void assertTrue(boolean okay) {
47        if (!okay)
48            throw new RuntimeException("Assertion failed");
49    }
50
51    static void doTests(Path dir) throws IOException {
52        /**
53         * Test: Directory should be on FileStore that is writable
54         */
55        assertTrue(!dir.getFileStore().isReadOnly());
56
57        /**
58         * Test: Two files should have the same FileStore
59         */
60        FileStore store1 = dir.resolve("foo").createFile().getFileStore();
61        FileStore store2 = dir.resolve("bar").createFile().getFileStore();
62        assertTrue(store1.equals(store2));
63        assertTrue(store2.equals(store1));
64        assertTrue(store1.hashCode() == store2.hashCode());
65
66        /**
67         * Test: File and FileStore attributes
68         */
69        assertTrue(store1.supportsFileAttributeView("basic"));
70        assertTrue(store1.supportsFileAttributeView(BasicFileAttributeView.class));
71        assertTrue(store1.supportsFileAttributeView("posix") ==
72            store1.supportsFileAttributeView(PosixFileAttributeView.class));
73        assertTrue(store1.supportsFileAttributeView("dos") ==
74            store1.supportsFileAttributeView(DosFileAttributeView.class));
75        assertTrue(store1.supportsFileAttributeView("acl") ==
76            store1.supportsFileAttributeView(AclFileAttributeView.class));
77        assertTrue(store1.supportsFileAttributeView("user") ==
78            store1.supportsFileAttributeView(UserDefinedFileAttributeView.class));
79
80        /**
81         * Test: Enumerate all FileStores
82         */
83        FileStore prev = null;
84        for (FileStore store: FileSystems.getDefault().getFileStores()) {
85            System.out.format("%s (name=%s type=%s)\n", store, store.name(),
86                store.type());
87
88            // check space attributes
89            Attributes.readFileStoreSpaceAttributes(store);
90
91            // two distinct FileStores should not be equal
92            assertTrue(!store.equals(prev));
93            prev = store;
94        }
95    }
96}
97