/*

 * Copyright (c) 2013, 2015, 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 8007907

 * @summary javap, method com.sun.tools.javap.Main.run returns 0 even in case

 * of class not found error

 */

import java.io.IOException;

import java.io.PrintWriter;

import java.io.StringWriter;

public class JavapReturns0AfterClassNotFoundTest {

    static final String fileNotFoundErrorMsg =

            "Error: class not found: Unexisting.class";

    static final String exitCodeClassNotFoundAssertionMsg =

            "Javap's exit code for class not found should be 1";

    static final String classNotFoundMsgAssertionMsg =

            "Javap's error message for class not found is incorrect";

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

        new JavapReturns0AfterClassNotFoundTest().run();

    }

    void run() throws IOException {

        check(exitCodeClassNotFoundAssertionMsg, classNotFoundMsgAssertionMsg,

                fileNotFoundErrorMsg, "-v", "Unexisting.class");

    }

    void check(String exitCodeAssertionMsg, String errMsgAssertionMsg,

            String expectedErrMsg, String... params) {

        int result;

        StringWriter s;

        String out;

        try (PrintWriter pw = new PrintWriter(s = new StringWriter())) {

            result = com.sun.tools.javap.Main.run(params, pw);

            //no line separator, no problem

            out = s.toString().trim();

        }

        if (result != 1) {

            System.out.println("actual exit code " + result);

            throw new AssertionError(exitCodeAssertionMsg);

        }

        if (!out.equals(expectedErrMsg)) {

            System.out.println("actual " + out);

            System.out.println("expected " + expectedErrMsg);

            throw new AssertionError(errMsgAssertionMsg);

        }

    }

}