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