jjg@508: /*
ohair@554:  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
jjg@508:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jjg@508:  *
jjg@508:  * This code is free software; you can redistribute it and/or modify it
jjg@508:  * under the terms of the GNU General Public License version 2 only, as
jjg@508:  * published by the Free Software Foundation.
jjg@508:  *
jjg@508:  * This code is distributed in the hope that it will be useful, but WITHOUT
jjg@508:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jjg@508:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
jjg@508:  * version 2 for more details (a copy is included in the LICENSE file that
jjg@508:  * accompanied this code).
jjg@508:  *
jjg@508:  * You should have received a copy of the GNU General Public License version
jjg@508:  * 2 along with this work; if not, write to the Free Software Foundation,
jjg@508:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jjg@508:  *
ohair@554:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554:  * or visit www.oracle.com if you need additional information or have any
ohair@554:  * questions.
jjg@508:  */
jjg@508: 
jjg@508: /*
jjg@508:  * @test
jjg@529:  * @bug 6893943 6937318
jjg@508:  * @summary exit code from javah with no args is 0
jjg@508:  */
jjg@508: 
jjg@508: import java.io.*;
jjg@508: import java.util.*;
jjg@508: 
jjg@508: public class T6893943 {
jjg@529:     static final String[] NO_ARGS = { };
jjg@529:     static final String[] HELP = { "-help" };
jjg@529:     static final String NEWLINE = System.getProperty("line.separator");
jjg@529: 
jjg@508:     public static void main(String... args) throws Exception {
jjg@508:         new T6893943().run();
jjg@508:     }
jjg@508: 
jjg@508:     void run() throws Exception {
jjg@529:         testSimpleAPI(NO_ARGS, 1);
jjg@529:         testSimpleAPI(HELP, 0);
jjg@529:         testCommand(NO_ARGS, 1);
jjg@529:         testCommand(HELP, 0);
jjg@508:     }
jjg@508: 
jjg@529:     void testSimpleAPI(String[] args, int expect_rc) throws Exception {
jjg@529:         System.err.println("Test simple api: " + Arrays.asList(args));
jjg@529:         StringWriter sw = new StringWriter();
jjg@529:         PrintWriter pw = new PrintWriter(sw);
jjg@529:         int rc = com.sun.tools.javah.Main.run(args, pw);
jjg@529:         pw.close();
jjg@529:         expect("testSimpleAPI", sw.toString(), rc, expect_rc);
jjg@508:     }
jjg@508: 
jjg@529:     void testCommand(String[] args, int expect_rc) throws Exception {
jjg@529:         System.err.println("Test command: " + Arrays.asList(args));
jjg@508:         File javaHome = new File(System.getProperty("java.home"));
jjg@508:         if (javaHome.getName().equals("jre"))
jjg@508:             javaHome = javaHome.getParentFile();
jjg@508: 
jjg@508:         List<String> command = new ArrayList<String>();
jjg@508:         command.add(new File(new File(javaHome, "bin"), "javah").getPath());
jjg@508:         command.add("-J-Xbootclasspath:" + System.getProperty("sun.boot.class.path"));
jjg@529:         command.addAll(Arrays.asList(args));
jjg@508:         //System.err.println("command: " + command);
jjg@508: 
jjg@508:         ProcessBuilder pb = new ProcessBuilder(command);
jjg@508:         pb.redirectErrorStream(true);
jjg@508:         Process p = pb.start();
jjg@508:         p.getOutputStream().close();
jjg@529:         StringWriter sw = new StringWriter();
jjg@508:         String line;
jjg@508:         BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream()));
jjg@508:         while ((line = in.readLine()) != null)
jjg@529:             sw.write(line + NEWLINE);
jjg@508:         int rc = p.waitFor();
jjg@529:         expect("testCommand", sw.toString(), rc, expect_rc);
jjg@508:     }
jjg@508: 
jjg@529:     void expect(String name, String out, int actual_rc, int expect_rc) throws Exception {
jjg@529:         if (out.isEmpty())
jjg@529:             throw new Exception("No output from javah");
jjg@529: 
jjg@529:         if (!out.startsWith("Usage:")) {
jjg@529:             System.err.println(out);
jjg@529:             throw new Exception("Unexpected output from javah");
jjg@529:         }
jjg@529: 
jjg@529:         if (actual_rc != expect_rc)
jjg@529:             throw new Exception(name + ": unexpected exit: " + actual_rc + ", expected: " + expect_rc);
jjg@508:     }
jjg@508: }