Mercurial > jdk8-mips64-public > langtools / file revision

 /*

  * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

  *

  * This code is free software; you can redistribute it and/or modify it

  * under the terms of the GNU General Public License version 2 only, as

  * published by the Free Software Foundation.

  *

  * This code is distributed in the hope that it will be useful, but WITHOUT

  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

  * version 2 for more details (a copy is included in the LICENSE file that

  * accompanied this code).

  *

  * You should have received a copy of the GNU General Public License version

  * 2 along with this work; if not, write to the Free Software Foundation,

  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

  *

  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

  * or visit www.oracle.com if you need additional information or have any

  * questions.

  */

 /*

  * @test

  * @bug 8003562

  * @summary Basic tests for jdeps tool

  * @build Test p.Foo

  * @run main Basic

  */

 import java.io.File;

 import java.io.IOException;

 import java.io.PrintWriter;

 import java.io.StringWriter;

 import java.util.*;

 import java.util.regex.*;

 public class Basic {

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

         int errors = 0;

         errors += new Basic().run();

         if (errors > 0)

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

     }

     int run() throws IOException {

         File testDir = new File(System.getProperty("test.classes", "."));

         // test a .class file

         test(new File(testDir, "Test.class"),

              new String[] {"java.lang", "p"});

         // test a directory

         test(new File(testDir, "p"),

              new String[] {"java.lang", "java.util"});

         // test class-level dependency output

         test(new File(testDir, "Test.class"),

              new String[] {"java.lang.Object", "p.Foo"},

              new String[] {"-V", "class"});

         // test -p option

         test(new File(testDir, "Test.class"),

              new String[] {"p.Foo"},

              new String[] {"--verbose-level=class", "-p", "p"});

         // test -e option

         test(new File(testDir, "Test.class"),

              new String[] {"p.Foo"},

              new String[] {"-V", "class", "-e", "p\\..*"});

         test(new File(testDir, "Test.class"),

              new String[] {"java.lang"},

              new String[] {"-V", "package", "-e", "java\\.lang\\..*"});

         // test -classpath and wildcard options

         test(null,

              new String[] {"com.sun.tools.jdeps", "java.lang", "java.util",

                            "java.util.regex", "java.io"},

              new String[] {"--classpath", testDir.getPath(), "*"});

         // -v shows intra-dependency

         test(new File(testDir, "Test.class"),

              new String[] {"java.lang.Object", "p.Foo"},

              new String[] {"-v", "--classpath", testDir.getPath(), "Test.class"});

         return errors;

     }

     void test(File file, String[] expect) {

         test(file, expect, new String[0]);

     }

     void test(File file, String[] expect, String[] options) {

         String[] args;

         if (file != null) {

             args = Arrays.copyOf(options, options.length+1);

             args[options.length] = file.getPath();

         } else {

             args = options;

         }

         String[] deps = jdeps(args);

         checkEqual("dependencies", expect, deps);

     }

     String[] jdeps(String... args) {

         StringWriter sw = new StringWriter();

         PrintWriter pw = new PrintWriter(sw);

         System.err.println("jdeps " + Arrays.toString(args));

         int rc = com.sun.tools.jdeps.Main.run(args, pw);

         pw.close();

         String out = sw.toString();

         if (!out.isEmpty())

             System.err.println(out);

         if (rc != 0)

             throw new Error("jdeps failed: rc=" + rc);

         return findDeps(out);

     }

     // Pattern used to parse lines

     private static Pattern linePattern = Pattern.compile(".*\r?\n");

     private static Pattern pattern = Pattern.compile("\\s+ -> (\\S+) +.*");

     // Use the linePattern to break the given String into lines, applying

     // the pattern to each line to see if we have a match

     private static String[] findDeps(String out) {

         List<String> result = new ArrayList<>();

         Matcher lm = linePattern.matcher(out);  // Line matcher

         Matcher pm = null;                      // Pattern matcher

         int lines = 0;

         while (lm.find()) {

             lines++;

             CharSequence cs = lm.group();       // The current line

             if (pm == null)

                 pm = pattern.matcher(cs);

             else

                 pm.reset(cs);

             if (pm.find())

                 result.add(pm.group(1));

             if (lm.end() == out.length())

                 break;

         }

         return result.toArray(new String[0]);

     }

     void checkEqual(String label, String[] expect, String[] found) {

         Set<String> s1 = new HashSet<>(Arrays.asList(expect));

         Set<String> s2 = new HashSet<>(Arrays.asList(found));

         if (!s1.equals(s2))

             error("Unexpected " + label + " found: '" + s2 + "', expected: '" + s1 + "'");

     }

     void error(String msg) {

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

         errors++;

     }

     int errors;

 }