jdk8-mips64-public/langtools: test/tools/javac/api/T6838467.java@7909abb85562

     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.util.Context;

    36 import com.sun.tools.javac.util.Options;

    38 public class T6838467 {

    39     boolean fileSystemIsCaseSignificant = !new File("a").equals(new File("A"));

    41     enum FileKind {

    42         DIR("dir"),

    43         ZIP("zip"),

    44         ZIPFILEINDEX("zip");

    45         FileKind(String path) {

    46             file = new File(path);

    47         }

    48         final File file;

    49     };

    51     enum CompareKind {

    52         SAME {

    53             File other(File f) { return f; }

    54         },

    55         ABSOLUTE {

    56             File other(File f) { return f.getAbsoluteFile(); }

    57         },

    58         DIFFERENT {

    59             File other(File f) { return new File("not_" + f.getPath()); }

    60         },

    61         CASEEQUIV {

    62             File other(File f) { return new File(f.getPath().toUpperCase()); }

    63         };

    64         abstract File other(File f);

    65     };

    67     String[] paths = { "p/A.java", "p/B.java", "p/C.java" };

    69     public static void main(String... args) throws Exception {

    70         new T6838467().run();

    71     }

    73     void run() throws Exception {

    74         // on Windows, verify file system is not case significant

    75         if (System.getProperty("os.name").toLowerCase().startsWith("windows")

    76                 && fileSystemIsCaseSignificant) {

    77             error("fileSystemIsCaseSignificant is set on Windows.");

    78         }

    80         // create a set of directories and zip files to compare

    81         createTestDir(new File("dir"), paths);

    82         createTestDir(new File("not_dir"), paths);

    83         createTestZip(new File("zip"), paths);

    84         createTestZip(new File("not_zip"), paths);

    85         if (fileSystemIsCaseSignificant) {

    86             createTestDir(new File("DIR"), paths);

    87             createTestZip(new File("ZIP"), paths);

    88         }

    90         // test the various sorts of file objects that can be obtained from

    91         // the file manager, and for various values that may or may not match.

    92         for (FileKind fk: FileKind.values()) {

    93             for (CompareKind ck: CompareKind.values()) {

    94                 test(fk, ck);

    95             }

    96         }

    98         // verify that the various different types of file object were all

    99         // tested

   100         Set<String> expectClasses = new HashSet<String>(Arrays.asList(

   101                 "RegularFileObject", "ZipFileObject", "ZipFileIndexFileObject" ));

   102         if (!foundClasses.equals(expectClasses)) {

   103             error("expected fileobject classes not found\n"

   104                     + "expected: " + expectClasses + "\n"

   105                     + "found: " + foundClasses);

   106         }

   108         if (errors > 0)

   109             throw new Exception(errors + " errors");

   110     }

   112     void test(FileKind fk, CompareKind ck) throws IOException {

   113         File f1 = fk.file;

   114         JavaFileManager fm1 = createFileManager(fk, f1);

   116         File f2 = ck.other(fk.file);

   117         JavaFileManager fm2 = createFileManager(fk, f2);

   119         try {

   120             // If the directories or zip files match, we expect "n" matches in

   121             // the "n-squared" comparisons to come, where "n" is the number of

   122             // entries in the the directories or zip files.

   123             // If the directories or zip files don't themselves match,

   124             // we obviously don't expect any of their contents to match either.

   125             int expect = (f1.getAbsoluteFile().equals(f2.getAbsoluteFile()) ? paths.length : 0);

   127             System.err.println("test " + (++count) + " " + fk + " " + ck + " " + f1 + " " + f2);

   128             test(fm1, fm2, expect);

   130         } finally {

   131             fm1.close();

   132             fm2.close();

   133         }

   134     }

   136     // For a pair of file managers that may or may not have similar entries

   137     // on the classpath, compare all files returned from one against all files

   138     // returned from the other.  For each pair of files, verify that if they

   139     // are equal, the hashcode is equal as well, and finally verify that the

   140     // expected number of matches was found.

   141     void test(JavaFileManager fm1, JavaFileManager fm2, int expectEqualCount) throws IOException {

   142         boolean foundFiles1 = false;

   143         boolean foundFiles2 = false;

   144         int foundEqualCount = 0;

   145         Set<JavaFileObject.Kind> kinds =  EnumSet.allOf(JavaFileObject.Kind.class);

   146         for (FileObject fo1: fm1.list(StandardLocation.CLASS_PATH, "p", kinds, false)) {

   147             foundFiles1 = true;

   148             foundClasses.add(fo1.getClass().getSimpleName());

   149             for (FileObject fo2: fm2.list(StandardLocation.CLASS_PATH, "p", kinds, false)) {

   150                 foundFiles2 = true;

   151                 foundClasses.add(fo1.getClass().getSimpleName());

   152                 System.err.println("compare " + fo1 + " " + fo2);

   153                 if (fo1.equals(fo2)) {

   154                     foundEqualCount++;

   155                     int hash1 = fo1.hashCode();

   156                     int hash2 = fo2.hashCode();

   157                     if (hash1 != hash2)

   158                         error("hashCode error: " + fo1 + " [" + hash1 + "] "

   159                                 + fo2 + " [" + hash2 + "]");

   160                 }

   161             }

   162         }

   163         if (!foundFiles1)

   164             error("no files found for file manager 1");

   165         if (!foundFiles2)

   166             error("no files found for file manager 2");

   167         // verify the expected number of matches were found

   168         if (foundEqualCount != expectEqualCount)

   169             error("expected matches not found: expected " + expectEqualCount + ", found " + foundEqualCount);

   170     }

   172     // create a file manager to test a FileKind, with a given directory

   173     // or zip file placed on the classpath

   174     JavaFileManager createFileManager(FileKind fk, File classpath) throws IOException {

   175         StandardJavaFileManager fm = createFileManager(fk == FileKind.ZIP);

   176         fm.setLocation(StandardLocation.CLASS_PATH, Arrays.asList(classpath));

   177         return fm;

   178     }

   180     JavacFileManager createFileManager(boolean useOptimizedZip) {

   181         Context ctx = new Context();

   182         Options options = Options.instance(ctx);

   183         options.put("useOptimizedZip", Boolean.toString(useOptimizedZip));

   184         return new JavacFileManager(ctx, false, null);

   185     }

   187     // create a directory containing a given set of paths

   188     void createTestDir(File dir, String[] paths) throws IOException {

   189         for (String p: paths) {

   190             File file = new File(dir, p);

   191             file.getParentFile().mkdirs();

   192             FileWriter out = new FileWriter(file);

   193             try {

   194                 out.write(p);

   195             } finally {

   196                 out.close();

   197             }

   198         }

   199     }

   201     // create a sip file containing a given set of entries

   202     void createTestZip(File zip, String[] paths) throws IOException {

   203         if (zip.getParentFile() != null)

   204             zip.getParentFile().mkdirs();

   205         ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(zip));

   206         try {

   207             for (String p: paths) {

   208                 ZipEntry ze = new ZipEntry(p);

   209                 zos.putNextEntry(ze);

   210                 byte[] bytes = p.getBytes();

   211                 zos.write(bytes, 0, bytes.length);

   212                 zos.closeEntry();

   213             }

   214         } finally {

   215             zos.close();

   216         }

   217     }

   219     void error(String msg) {

   220         System.err.println("Error: " + msg);

   221         errors++;

   222     }

   224     int count;

   225     int errors;

   226     Set<String> foundClasses = new HashSet<String>();

   227 }

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test/tools/javac/api/T6838467.java@7909abb85562

test/tools/javac/api/T6838467.java