1 /*
2 * Copyright (c) 2008, 2011, 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 7006126 7020517
26 * @summary Unit test for java.nio.file.FileStore
27 * @library ..
28 */
29
30 import java.nio.file.*;
31 import java.nio.file.attribute.*;
32 import java.io.File;
33 import java.io.IOException;
34 import java.util.*;
35
36 public class Basic {
37
38 static final long G = 1024L * 1024L * 1024L;
39
40 public static void main(String[] args) throws IOException {
41 Path dir = TestUtil.createTemporaryDirectory();
42 try {
43 doTests(dir);
44 } finally {
45 TestUtil.removeAll(dir);
46 }
47 }
48
49 static void assertTrue(boolean okay) {
50 if (!okay)
51 throw new RuntimeException("Assertion failed");
52 }
53
54 static void checkWithin1GB(long value1, long value2) {
55 long diff = Math.abs(value1 - value2);
56 if (diff > G)
57 throw new RuntimeException("values differ by more than 1GB");
58 }
59
60 static void doTests(Path dir) throws IOException {
61 /**
62 * Test: Directory should be on FileStore that is writable
63 */
64 assertTrue(!Files.getFileStore(dir).isReadOnly());
65
66 /**
67 * Test: Two files should have the same FileStore
68 */
69 Path file1 = Files.createFile(dir.resolve("foo"));
70 Path file2 = Files.createFile(dir.resolve("bar"));
71 FileStore store1 = Files.getFileStore(file1);
72 FileStore store2 = Files.getFileStore(file2);
73 assertTrue(store1.equals(store2));
74 assertTrue(store2.equals(store1));
75 assertTrue(store1.hashCode() == store2.hashCode());
76
77 /**
78 * Test: File and FileStore attributes
79 */
80 assertTrue(store1.supportsFileAttributeView("basic"));
81 assertTrue(store1.supportsFileAttributeView(BasicFileAttributeView.class));
82 assertTrue(store1.supportsFileAttributeView("posix") ==
83 store1.supportsFileAttributeView(PosixFileAttributeView.class));
84 assertTrue(store1.supportsFileAttributeView("dos") ==
85 store1.supportsFileAttributeView(DosFileAttributeView.class));
86 assertTrue(store1.supportsFileAttributeView("acl") ==
87 store1.supportsFileAttributeView(AclFileAttributeView.class));
88 assertTrue(store1.supportsFileAttributeView("user") ==
89 store1.supportsFileAttributeView(UserDefinedFileAttributeView.class));
90
91 /**
92 * Test: Space atributes
93 */
94 File f = file1.toFile();
95 long total = f.getTotalSpace();
96 long free = f.getFreeSpace();
97 long usable = f.getUsableSpace();
98
99 // check values are "close"
100 checkWithin1GB(total, store1.getTotalSpace());
101 checkWithin1GB(free, store1.getUnallocatedSpace());
102 checkWithin1GB(usable, store1.getUsableSpace());
103
104 // get values by name
105 checkWithin1GB(total, (Long)store1.getAttribute("totalSpace"));
106 checkWithin1GB(free, (Long)store1.getAttribute("unallocatedSpace"));
107 checkWithin1GB(usable, (Long)store1.getAttribute("usableSpace"));
108
109 /**
110 * Test: Enumerate all FileStores
111 */
112 FileStore prev = null;
113 for (FileStore store: FileSystems.getDefault().getFileStores()) {
114 System.out.format("%s (name=%s type=%s)\n", store, store.name(),
115 store.type());
116
117 // check space attributes are accessible
118 store.getTotalSpace();
119 store.getUnallocatedSpace();
120 store.getUsableSpace();
121
122 // two distinct FileStores should not be equal
123 assertTrue(!store.equals(prev));
124 prev = store;
125 }
126 }
127 }