Mercurial > jdk8-mips64-public > langtools / file revision
test/tools/javac/api/T6838467.java@3d45cc94ee0f
test/tools/javac/api/T6838467.java
Fri, 18 Feb 2011 08:12:06 -0800
- author
- ksrini
- date
- Fri, 18 Feb 2011 08:12:06 -0800
- changeset 882
- 3d45cc94ee0f
- parent 554
- 9d9f26857129
- child 923
- 6970d9fb8e02
- permissions
- -rw-r--r--
7018859: javac turn off the Zip optimization by default
Reviewed-by: jjg
1 /*
2 * Copyright (c) 2009, 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 */
24 /*
25 * @test
26 * @bug 6838467
27 * @summary JSR199 FileObjects don't obey general contract of equals.
28 */
30 import java.io.*;
31 import java.util.*;
32 import java.util.zip.*;
33 import javax.tools.*;
34 import com.sun.tools.javac.file.JavacFileManager;
35 import com.sun.tools.javac.main.OptionName;
36 import com.sun.tools.javac.util.Context;
37 import com.sun.tools.javac.util.Options;
39 public class T6838467 {
40 boolean fileSystemIsCaseSignificant = !new File("a").equals(new File("A"));
42 enum FileKind {
43 DIR("dir"),
44 ZIP("zip"),
45 ZIPFILEINDEX("zip");
46 FileKind(String path) {
47 file = new File(path);
48 }
49 final File file;
50 };
52 enum CompareKind {
53 SAME {
54 File other(File f) { return f; }
55 },
56 ABSOLUTE {
57 File other(File f) { return f.getAbsoluteFile(); }
58 },
59 DIFFERENT {
60 File other(File f) { return new File("not_" + f.getPath()); }
61 },
62 CASEEQUIV {
63 File other(File f) { return new File(f.getPath().toUpperCase()); }
64 };
65 abstract File other(File f);
66 };
68 String[] paths = { "p/A.java", "p/B.java", "p/C.java" };
70 public static void main(String... args) throws Exception {
71 new T6838467().run();
72 }
74 void run() throws Exception {
75 // on Windows, verify file system is not case significant
76 if (System.getProperty("os.name").toLowerCase().startsWith("windows")
77 && fileSystemIsCaseSignificant) {
78 error("fileSystemIsCaseSignificant is set on Windows.");
79 }
81 // create a set of directories and zip files to compare
82 createTestDir(new File("dir"), paths);
83 createTestDir(new File("not_dir"), paths);
84 createTestZip(new File("zip"), paths);
85 createTestZip(new File("not_zip"), paths);
86 if (fileSystemIsCaseSignificant) {
87 createTestDir(new File("DIR"), paths);
88 createTestZip(new File("ZIP"), paths);
89 }
91 // test the various sorts of file objects that can be obtained from
92 // the file manager, and for various values that may or may not match.
93 for (FileKind fk: FileKind.values()) {
94 for (CompareKind ck: CompareKind.values()) {
95 test(fk, ck);
96 }
97 }
99 // verify that the various different types of file object were all
100 // tested
101 Set<String> expectClasses = new HashSet<String>(Arrays.asList(
102 "RegularFileObject", "ZipFileObject", "ZipFileIndexFileObject" ));
103 if (!foundClasses.equals(expectClasses)) {
104 error("expected fileobject classes not found\n"
105 + "expected: " + expectClasses + "\n"
106 + "found: " + foundClasses);
107 }
109 if (errors > 0)
110 throw new Exception(errors + " errors");
111 }
113 void test(FileKind fk, CompareKind ck) throws IOException {
114 File f1 = fk.file;
115 JavaFileManager fm1 = createFileManager(fk, f1);
117 File f2 = ck.other(fk.file);
118 JavaFileManager fm2 = createFileManager(fk, f2);
120 try {
121 // If the directories or zip files match, we expect "n" matches in
122 // the "n-squared" comparisons to come, where "n" is the number of
123 // entries in the the directories or zip files.
124 // If the directories or zip files don't themselves match,
125 // we obviously don't expect any of their contents to match either.
126 int expect = (f1.getAbsoluteFile().equals(f2.getAbsoluteFile()) ? paths.length : 0);
128 System.err.println("test " + (++count) + " " + fk + " " + ck + " " + f1 + " " + f2);
129 test(fm1, fm2, expect);
131 } finally {
132 fm1.close();
133 fm2.close();
134 }
135 }
137 // For a pair of file managers that may or may not have similar entries
138 // on the classpath, compare all files returned from one against all files
139 // returned from the other. For each pair of files, verify that if they
140 // are equal, the hashcode is equal as well, and finally verify that the
141 // expected number of matches was found.
142 void test(JavaFileManager fm1, JavaFileManager fm2, int expectEqualCount) throws IOException {
143 boolean foundFiles1 = false;
144 boolean foundFiles2 = false;
145 int foundEqualCount = 0;
146 Set<JavaFileObject.Kind> kinds = EnumSet.allOf(JavaFileObject.Kind.class);
147 for (FileObject fo1: fm1.list(StandardLocation.CLASS_PATH, "p", kinds, false)) {
148 foundFiles1 = true;
149 foundClasses.add(fo1.getClass().getSimpleName());
150 for (FileObject fo2: fm2.list(StandardLocation.CLASS_PATH, "p", kinds, false)) {
151 foundFiles2 = true;
152 foundClasses.add(fo1.getClass().getSimpleName());
153 System.err.println("compare " + fo1 + " " + fo2);
154 if (fo1.equals(fo2)) {
155 foundEqualCount++;
156 int hash1 = fo1.hashCode();
157 int hash2 = fo2.hashCode();
158 if (hash1 != hash2)
159 error("hashCode error: " + fo1 + " [" + hash1 + "] "
160 + fo2 + " [" + hash2 + "]");
161 }
162 }
163 }
164 if (!foundFiles1)
165 error("no files found for file manager 1");
166 if (!foundFiles2)
167 error("no files found for file manager 2");
168 // verify the expected number of matches were found
169 if (foundEqualCount != expectEqualCount)
170 error("expected matches not found: expected " + expectEqualCount + ", found " + foundEqualCount);
171 }
173 // create a file manager to test a FileKind, with a given directory
174 // or zip file placed on the classpath
175 JavaFileManager createFileManager(FileKind fk, File classpath) throws IOException {
176 StandardJavaFileManager fm = createFileManager(fk == FileKind.ZIP);
177 fm.setLocation(StandardLocation.CLASS_PATH, Arrays.asList(classpath));
178 return fm;
179 }
181 JavacFileManager createFileManager(boolean useOptimedZipIndex) {
182 Context ctx = new Context();
183 if (useOptimedZipIndex) {
184 Options options = Options.instance(ctx);
185 options.put("useOptimizedZip", "true");
186 }
187 return new JavacFileManager(ctx, false, null);
188 }
190 // create a directory containing a given set of paths
191 void createTestDir(File dir, String[] paths) throws IOException {
192 for (String p: paths) {
193 File file = new File(dir, p);
194 file.getParentFile().mkdirs();
195 FileWriter out = new FileWriter(file);
196 try {
197 out.write(p);
198 } finally {
199 out.close();
200 }
201 }
202 }
204 // create a sip file containing a given set of entries
205 void createTestZip(File zip, String[] paths) throws IOException {
206 if (zip.getParentFile() != null)
207 zip.getParentFile().mkdirs();
208 ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(zip));
209 try {
210 for (String p: paths) {
211 ZipEntry ze = new ZipEntry(p);
212 zos.putNextEntry(ze);
213 byte[] bytes = p.getBytes();
214 zos.write(bytes, 0, bytes.length);
215 zos.closeEntry();
216 }
217 } finally {
218 zos.close();
219 }
220 }
222 void error(String msg) {
223 System.err.println("Error: " + msg);
224 errors++;
225 }
227 int count;
228 int errors;
229 Set<String> foundClasses = new HashSet<String>();
230 }
