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 * @build jdk.test.lib.util.FileUtils
30 * jdk.test.lib.Utils
31 * jdk.test.lib.Asserts
32 * jdk.test.lib.JDKToolFinder
33 * jdk.test.lib.JDKToolLauncher
34 * jdk.test.lib.Platform
35 * jdk.test.lib.process.*
36 * @run main Basic
37 */
38
39 import java.nio.file.*;
40 import java.nio.file.attribute.*;
41 import java.io.File;
42 import java.io.IOException;
43
44 import jdk.test.lib.util.FileUtils;
45
46
47 public class Basic {
48
49 static final long G = 1024L * 1024L * 1024L;
50
51 public static void main(String[] args) throws IOException {
52 Path dir = TestUtil.createTemporaryDirectory();
53 try {
54 doTests(dir);
55 } finally {
56 TestUtil.removeAll(dir);
57 }
58 }
59
60 static void assertTrue(boolean okay) {
61 if (!okay)
62 throw new RuntimeException("Assertion failed");
63 }
64
65 static void checkWithin1GB(long value1, long value2) {
66 long diff = Math.abs(value1 - value2);
67 if (diff > G)
68 throw new RuntimeException("values differ by more than 1GB");
69 }
70
71 static void doTests(Path dir) throws IOException {
72 /**
73 * Test: Directory should be on FileStore that is writable
74 */
75 assertTrue(!Files.getFileStore(dir).isReadOnly());
76
77 /**
78 * Test: Two files should have the same FileStore
79 */
80 Path file1 = Files.createFile(dir.resolve("foo"));
81 Path file2 = Files.createFile(dir.resolve("bar"));
82 FileStore store1 = Files.getFileStore(file1);
83 FileStore store2 = Files.getFileStore(file2);
84 assertTrue(store1.equals(store2));
85 assertTrue(store2.equals(store1));
86 assertTrue(store1.hashCode() == store2.hashCode());
87
88 /**
89 * Test: File and FileStore attributes
90 */
91 assertTrue(store1.supportsFileAttributeView("basic"));
92 assertTrue(store1.supportsFileAttributeView(BasicFileAttributeView.class));
93 assertTrue(store1.supportsFileAttributeView("posix") ==
94 store1.supportsFileAttributeView(PosixFileAttributeView.class));
95 assertTrue(store1.supportsFileAttributeView("dos") ==
96 store1.supportsFileAttributeView(DosFileAttributeView.class));
97 assertTrue(store1.supportsFileAttributeView("acl") ==
98 store1.supportsFileAttributeView(AclFileAttributeView.class));
99 assertTrue(store1.supportsFileAttributeView("user") ==
100 store1.supportsFileAttributeView(UserDefinedFileAttributeView.class));
101
102 /**
103 * Test: Space atributes
104 */
105 File f = file1.toFile();
106 long total = f.getTotalSpace();
107 long free = f.getFreeSpace();
108 long usable = f.getUsableSpace();
109
110 // check values are "close"
111 checkWithin1GB(total, store1.getTotalSpace());
112 checkWithin1GB(free, store1.getUnallocatedSpace());
113 checkWithin1GB(usable, store1.getUsableSpace());
114
115 // get values by name
116 checkWithin1GB(total, (Long)store1.getAttribute("totalSpace"));
117 checkWithin1GB(free, (Long)store1.getAttribute("unallocatedSpace"));
118 checkWithin1GB(usable, (Long)store1.getAttribute("usableSpace"));
119
120 /**
121 * Test: Enumerate all FileStores
122 */
123 if (FileUtils.areFileSystemsAccessible()) {
124 FileStore prev = null;
125 for (FileStore store: FileSystems.getDefault().getFileStores()) {
126 System.out.format("%s (name=%s type=%s)\n", store, store.name(),
127 store.type());
128
129 // check space attributes are accessible
130 try {
131 store.getTotalSpace();
132 store.getUnallocatedSpace();
133 store.getUsableSpace();
134 } catch (NoSuchFileException nsfe) {
135 // ignore exception as the store could have been
136 // deleted since the iterator was instantiated
137 System.err.format("%s was not found\n", store);
138 } catch (AccessDeniedException ade) {
139 // ignore exception as the lack of ability to access the
140 // store due to lack of file permission or similar does not
141 // reflect whether the space attributes would be accessible
142 // were access to be permitted
143 System.err.format("%s is inaccessible\n", store);
144 }
145
146 // two distinct FileStores should not be equal
147 assertTrue(!store.equals(prev));
148 prev = store;
149 }
150 } else {
151 System.err.println
152 ("Skipping FileStore check due to file system access failure");
153 }
154 }
155 }