1 /*
2 * Copyright (c) 2008, 2010, 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 6838333 6865748
26 * @summary Unit test for java.nio.file.Files for miscellenous cases not
27 * covered by other tests
28 * @library ..
29 */
30
31 import java.nio.file.*;
32 import java.nio.file.attribute.Attributes;
33 import java.nio.file.attribute.BasicFileAttributes;
34 import java.io.IOException;
35 import java.util.*;
36
37 public class Misc {
38
39 static void npeExpected() {
40 throw new RuntimeException("NullPointerException expected");
41 }
42
43 public static void main(String[] args) throws IOException {
44
45 // -- Files.createDirectories --
46
47 Path dir = TestUtil.createTemporaryDirectory();
48 try {
49 // no-op
50 Files.createDirectories(dir);
51
52 // create one directory
53 Path subdir = dir.resolve("a");
54 Files.createDirectories(subdir);
55 if (!subdir.exists())
56 throw new RuntimeException("directory not created");
57
58 // create parents
59 subdir = subdir.resolve("b/c/d");
60 Files.createDirectories(subdir);
61 if (!subdir.exists())
62 throw new RuntimeException("directory not created");
63
64 // existing file is not a directory
65 Path file = dir.resolve("x").createFile();
66 try {
67 Files.createDirectories(file);
68 throw new RuntimeException("failure expected");
69 } catch (FileAlreadyExistsException x) { }
70 try {
71 Files.createDirectories(file.resolve("y"));
72 throw new RuntimeException("failure expected");
73 } catch (IOException x) { }
74
75 } finally {
76 TestUtil.removeAll(dir);
77 }
78
79 // --- NullPointerException --
80
81 try {
82 Files.probeContentType(null);
83 npeExpected();
84 } catch (NullPointerException e) {
85 }
86 try {
87 Files.walkFileTree(null, EnumSet.noneOf(FileVisitOption.class),
88 Integer.MAX_VALUE, new SimpleFileVisitor<Path>(){});
89 npeExpected();
90 } catch (NullPointerException e) {
91 }
92 try {
93 Files.walkFileTree(Paths.get("."), null, Integer.MAX_VALUE,
94 new SimpleFileVisitor<Path>(){});
95 npeExpected();
96 } catch (NullPointerException e) {
97 }
98 try {
99 Files.walkFileTree(Paths.get("."), EnumSet.noneOf(FileVisitOption.class),
100 -1, new SimpleFileVisitor<Path>(){});
101 throw new RuntimeException("IllegalArgumentExpected expected");
102 } catch (IllegalArgumentException e) {
103 }
104 try {
105 Set<FileVisitOption> opts = new HashSet<FileVisitOption>(1);
106 opts.add(null);
107 Files.walkFileTree(Paths.get("."), opts, Integer.MAX_VALUE,
108 new SimpleFileVisitor<Path>(){});
109 npeExpected();
110 } catch (NullPointerException e) {
111 }
112 try {
113 Files.walkFileTree(Paths.get("."), EnumSet.noneOf(FileVisitOption.class),
114 Integer.MAX_VALUE, null);
115 npeExpected();
116 } catch (NullPointerException e) {
117 }
118
119 SimpleFileVisitor<Path> visitor = new SimpleFileVisitor<Path>() { };
120 boolean ranTheGauntlet = false;
121 BasicFileAttributes attrs = Attributes.readBasicFileAttributes(Paths.get("."));
122
123 try { visitor.preVisitDirectory(null, attrs);
124 } catch (NullPointerException x0) {
125 try { visitor.preVisitDirectory(dir, null);
126 } catch (NullPointerException x1) {
127 try { visitor.visitFile(null, attrs);
128 } catch (NullPointerException x2) {
129 try { visitor.visitFile(dir, null);
130 } catch (NullPointerException x3) {
131 try { visitor.visitFileFailed(null, new IOException());
132 } catch (NullPointerException x4) {
133 try { visitor.visitFileFailed(dir, null);
134 } catch (NullPointerException x5) {
135 try { visitor.postVisitDirectory(null, new IOException());
136 } catch (NullPointerException x6) {
137 // if we get here then all visit* methods threw NPE as expected
138 ranTheGauntlet = true;
139 }}}}}}}
140 if (!ranTheGauntlet)
141 throw new RuntimeException("A visit method did not throw NPE");
142 }
143 }