1 /*
2 * Copyright (c) 2008, 2017, 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 * @key intermittent
28 * @library .. /test/lib
29 * @run main Basic
30 */
31
32 import java.nio.file.*;
33 import java.nio.file.attribute.*;
34 import java.io.File;
35 import java.io.IOException;
36
37 import jdk.test.lib.util.FileUtils;
38
39
40 public class Basic {
41
42 static final long G = 1024L * 1024L * 1024L;
43
44 public static void main(String[] args) throws IOException {
45 Path dir = TestUtil.createTemporaryDirectory();
46 try {
47 doTests(dir);
48 } finally {
49 TestUtil.removeAll(dir);
50 }
51 }
52
53 static void assertTrue(boolean okay) {
54 if (!okay)
55 throw new RuntimeException("Assertion failed");
56 }
57
58 static void checkWithin1GB(long value1, long value2) {
59 long diff = Math.abs(value1 - value2);
60 if (diff > G)
61 throw new RuntimeException("values differ by more than 1GB");
62 }
63
64 static void doTests(Path dir) throws IOException {
65 /**
66 * Test: Directory should be on FileStore that is writable
67 */
68 assertTrue(!Files.getFileStore(dir).isReadOnly());
69
70 /**
71 * Test: Two files should have the same FileStore
72 */
73 Path file1 = Files.createFile(dir.resolve("foo"));
74 Path file2 = Files.createFile(dir.resolve("bar"));
75 FileStore store1 = Files.getFileStore(file1);
76 FileStore store2 = Files.getFileStore(file2);
77 assertTrue(store1.equals(store2));
78 assertTrue(store2.equals(store1));
79 assertTrue(store1.hashCode() == store2.hashCode());
80
81 /**
82 * Test: File and FileStore attributes
83 */
84 assertTrue(store1.supportsFileAttributeView("basic"));
85 assertTrue(store1.supportsFileAttributeView(BasicFileAttributeView.class));
86 assertTrue(store1.supportsFileAttributeView("posix") ==
87 store1.supportsFileAttributeView(PosixFileAttributeView.class));
88 assertTrue(store1.supportsFileAttributeView("dos") ==
89 store1.supportsFileAttributeView(DosFileAttributeView.class));
90 assertTrue(store1.supportsFileAttributeView("acl") ==
91 store1.supportsFileAttributeView(AclFileAttributeView.class));
92 assertTrue(store1.supportsFileAttributeView("user") ==
93 store1.supportsFileAttributeView(UserDefinedFileAttributeView.class));
94
95 /**
96 * Test: Space atributes
97 */
98 File f = file1.toFile();
99 long total = f.getTotalSpace();
100 long free = f.getFreeSpace();
101 long usable = f.getUsableSpace();
102
103 // check values are "close"
104 checkWithin1GB(total, store1.getTotalSpace());
105 checkWithin1GB(free, store1.getUnallocatedSpace());
106 checkWithin1GB(usable, store1.getUsableSpace());
107
108 // get values by name
109 checkWithin1GB(total, (Long)store1.getAttribute("totalSpace"));
110 checkWithin1GB(free, (Long)store1.getAttribute("unallocatedSpace"));
111 checkWithin1GB(usable, (Long)store1.getAttribute("usableSpace"));
112
113 /**
114 * Test: Enumerate all FileStores
115 */
116 if (FileUtils.areFileSystemsAccessible()) {
117 FileStore prev = null;
118 for (FileStore store: FileSystems.getDefault().getFileStores()) {
119 System.out.format("%s (name=%s type=%s)\n", store, store.name(),
120 store.type());
121
122 // check space attributes are accessible
123 try {
124 store.getTotalSpace();
125 store.getUnallocatedSpace();
126 store.getUsableSpace();
127 } catch (NoSuchFileException nsfe) {
128 // ignore exception as the store could have been
129 // deleted since the iterator was instantiated
130 System.err.format("%s was not found\n", store);
131 } catch (AccessDeniedException ade) {
132 // ignore exception as the lack of ability to access the
133 // store due to lack of file permission or similar does not
134 // reflect whether the space attributes would be accessible
135 // were access to be permitted
136 System.err.format("%s is inaccessible\n", store);
137 }
138
139 // two distinct FileStores should not be equal
140 assertTrue(!store.equals(prev));
141 prev = store;
142 }
143 } else {
144 System.err.println
145 ("Skipping FileStore check due to file system access failure");
146 }
147 }
148 }