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

 /*

  * Copyright 2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

  * CA 95054 USA or visit www.sun.com if you need additional information or

  * have any questions.

  */

 import java.io.*;

 import java.util.*;

 /*

  * @test

  * @bug 6439940

  * @summary Cleanup javap implementation

  * @run main/othervm OptionTest

  */

 public class OptionTest {

     public static void main(String[] args) throws Exception {

         new OptionTest().run();

     }

     OptionTest() {

         String v = System.getProperty("view.cmd");

         if (v != null) {

             viewResults = true;

             viewCmd = Arrays.asList(v.split(" +"));

         }

     }

     void run() throws Exception {

         int count = 0;

         int pass = 0;

         // try combinations of options and compare old javap against new javap

         for (int i = 0; i < (1<<8); i++) {

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

             if ((i & 0x01) != 0)

                 options.add("-c");

             if ((i & 0x02) != 0)

                 options.add("-l");

             if ((i & 0x04) != 0)

                 options.add("-public");

             if ((i & 0x08) != 0)

                 options.add("-protected");

             if ((i & 0x10) != 0)

                 options.add("-package");

             if ((i & 0x20) != 0)

                 options.add("-private");

             if ((i & 0x40) != 0)

                 options.add("-s");

             if ((i & 0x80) != 0)

                 options.add("-verbose");

             count++;

             if (test(options))

                 pass++;

         }

         if (pass < count)

             throw new Error(pass + "/" + count + " test cases passed");

     }

     boolean test(List<String> options) throws Exception {

         String[] args = new String[options.size() + 1];

         options.toArray(args);

         args[args.length - 1] = testClassName;

         String oldOut = runOldJavap(args);

         String newOut = runNewJavap(args);

         boolean ok = oldOut.equals(newOut);

         System.err.println((ok ? "pass" : "FAIL") + ": " + options);

         if (!ok && viewResults)

             view(oldOut, newOut);

         return ok;

     }

     String runOldJavap(String[] args) {

         //System.err.println("OLD: " + Arrays.asList(args));

         PrintStream oldOut = System.out;

         ByteArrayOutputStream out = new ByteArrayOutputStream();

         System.setOut(new PrintStream(out));

         try {

             sun.tools.javap.Main.entry(args);

         } finally {

             System.setOut(oldOut);

         }

         return out.toString();

     }

     String runNewJavap(String[] args) {

         String[] nArgs = new String[args.length + 2];

         nArgs[0] = "-XDcompat";

         nArgs[1] = "-XDignore.symbol.file";

         System.arraycopy(args, 0, nArgs, 2, args.length);

         //System.err.println("NEW: " + Arrays.asList(nArgs));

         StringWriter out = new StringWriter();

         com.sun.tools.javap.Main.run(nArgs, new PrintWriter(out, true));

         return out.toString();

     }

     File write(String text, String suffix) throws IOException {

         File f = File.createTempFile("OptionTest", suffix);

         FileWriter out = new FileWriter(f);

         out.write(text);

         out.close();

         return f;

     }

     void view(String oldOut, String newOut) throws Exception {

         File oldFile = write(oldOut, "old");

         File newFile = write(newOut, "new");

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

         cmd.addAll(viewCmd);

         cmd.add(oldFile.getPath());

         cmd.add(newFile.getPath());

         Process p = new ProcessBuilder(cmd).redirectErrorStream(true).start();

         p.getOutputStream().close();

         String line;

         BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream()));

         while ((line = in.readLine()) != null)

             System.err.println(line);

         in.close();

         p.waitFor();

     }

     String testClassName = "java.lang.SecurityManager";

     boolean viewResults;

     List<String> viewCmd;

 }