jjg@46: /*
jjg@46:  * Copyright 2007 Sun Microsystems, Inc.  All Rights Reserved.
jjg@46:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jjg@46:  *
jjg@46:  * This code is free software; you can redistribute it and/or modify it
jjg@46:  * under the terms of the GNU General Public License version 2 only, as
jjg@46:  * published by the Free Software Foundation.
jjg@46:  *
jjg@46:  * This code is distributed in the hope that it will be useful, but WITHOUT
jjg@46:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jjg@46:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
jjg@46:  * version 2 for more details (a copy is included in the LICENSE file that
jjg@46:  * accompanied this code).
jjg@46:  *
jjg@46:  * You should have received a copy of the GNU General Public License version
jjg@46:  * 2 along with this work; if not, write to the Free Software Foundation,
jjg@46:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jjg@46:  *
jjg@46:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
jjg@46:  * CA 95054 USA or visit www.sun.com if you need additional information or
jjg@46:  * have any questions.
jjg@46:  */
jjg@46: 
jjg@46: import java.io.*;
jjg@46: import java.util.*;
jjg@46: 
jjg@46: /*
jjg@46:  * @test
jjg@46:  * @bug 6439940
jjg@46:  * @summary Cleanup javap implementation
jjg@46:  * @run main/othervm OptionTest
jjg@46:  */
jjg@46: public class OptionTest {
jjg@46:     public static void main(String[] args) throws Exception {
jjg@46:         new OptionTest().run();
jjg@46:     }
jjg@46: 
jjg@46:     OptionTest() {
jjg@46:         String v = System.getProperty("view.cmd");
jjg@46:         if (v != null) {
jjg@46:             viewResults = true;
jjg@46:             viewCmd = Arrays.asList(v.split(" +"));
jjg@46:         }
jjg@46:     }
jjg@46: 
jjg@46: 
jjg@46:     void run() throws Exception {
jjg@46:         int count = 0;
jjg@46:         int pass = 0;
jjg@46:         // try combinations of options and compare old javap against new javap
jjg@46:         for (int i = 0; i < (1<<8); i++) {
jjg@46:             List<String> options = new ArrayList<String>();
jjg@46:             if ((i & 0x01) != 0)
jjg@46:                 options.add("-c");
jjg@46:             if ((i & 0x02) != 0)
jjg@46:                 options.add("-l");
jjg@46:             if ((i & 0x04) != 0)
jjg@46:                 options.add("-public");
jjg@46:             if ((i & 0x08) != 0)
jjg@46:                 options.add("-protected");
jjg@46:             if ((i & 0x10) != 0)
jjg@46:                 options.add("-package");
jjg@46:             if ((i & 0x20) != 0)
jjg@46:                 options.add("-private");
jjg@46:             if ((i & 0x40) != 0)
jjg@46:                 options.add("-s");
jjg@46:             if ((i & 0x80) != 0)
jjg@46:                 options.add("-verbose");
jjg@46:             count++;
jjg@46:             if (test(options))
jjg@46:                 pass++;
jjg@46:         }
jjg@46: 
jjg@46:         if (pass < count)
jjg@46:             throw new Error(pass + "/" + count + " test cases passed");
jjg@46:     }
jjg@46: 
jjg@46:     boolean test(List<String> options) throws Exception {
jjg@46:         String[] args = new String[options.size() + 1];
jjg@46:         options.toArray(args);
jjg@46:         args[args.length - 1] = testClassName;
jjg@46:         String oldOut = runOldJavap(args);
jjg@46:         String newOut = runNewJavap(args);
jjg@46:         boolean ok = oldOut.equals(newOut);
jjg@46:         System.err.println((ok ? "pass" : "FAIL") + ": " + options);
jjg@46:         if (!ok && viewResults)
jjg@46:             view(oldOut, newOut);
jjg@46:         return ok;
jjg@46:     }
jjg@46: 
jjg@46:     String runOldJavap(String[] args) {
jjg@46:         //System.err.println("OLD: " + Arrays.asList(args));
jjg@46:         PrintStream oldOut = System.out;
jjg@46:         ByteArrayOutputStream out = new ByteArrayOutputStream();
jjg@46:         System.setOut(new PrintStream(out));
jjg@46:         try {
jjg@46:             sun.tools.javap.Main.entry(args);
jjg@46:         } finally {
jjg@46:             System.setOut(oldOut);
jjg@46:         }
jjg@46:         return out.toString();
jjg@46:     }
jjg@46: 
jjg@46:     String runNewJavap(String[] args) {
jjg@46:         String[] nArgs = new String[args.length + 2];
jjg@46:         nArgs[0] = "-XDcompat";
jjg@46:         nArgs[1] = "-XDignore.symbol.file";
jjg@46:         System.arraycopy(args, 0, nArgs, 2, args.length);
jjg@46:         //System.err.println("NEW: " + Arrays.asList(nArgs));
jjg@46:         StringWriter out = new StringWriter();
jjg@46:         com.sun.tools.javap.Main.run(nArgs, new PrintWriter(out, true));
jjg@46:         return out.toString();
jjg@46:     }
jjg@46: 
jjg@46:     File write(String text, String suffix) throws IOException {
jjg@46:         File f = File.createTempFile("OptionTest", suffix);
jjg@46:         FileWriter out = new FileWriter(f);
jjg@46:         out.write(text);
jjg@46:         out.close();
jjg@46:         return f;
jjg@46:     }
jjg@46: 
jjg@46:     void view(String oldOut, String newOut) throws Exception {
jjg@46:         File oldFile = write(oldOut, "old");
jjg@46:         File newFile = write(newOut, "new");
jjg@46:         List<String> cmd = new ArrayList<String>();
jjg@46:         cmd.addAll(viewCmd);
jjg@46:         cmd.add(oldFile.getPath());
jjg@46:         cmd.add(newFile.getPath());
jjg@46:         Process p = new ProcessBuilder(cmd).redirectErrorStream(true).start();
jjg@46:         p.getOutputStream().close();
jjg@46:         String line;
jjg@46:         BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream()));
jjg@46:         while ((line = in.readLine()) != null)
jjg@46:             System.err.println(line);
jjg@46:         in.close();
jjg@46:         p.waitFor();
jjg@46:     }
jjg@46: 
jjg@46:     String testClassName = "java.lang.SecurityManager";
jjg@46:     boolean viewResults;
jjg@46:     List<String> viewCmd;
jjg@46: }