/*

 * 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 7067922

 * @author sogoel

 * @summary Test negative scenarios for main class attribute

 * @build MainClassAttributeTest

 * @run main MainClassAttributeTest

 */

import java.io.File;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.util.ArrayList;

import java.util.List;

/*

 * This tests negative scenarios for Main class entry in a jar file.

 * An error should be thrown for each of the test cases when such a

 * jar is executed.

 */

public class MainClassAttributeTest extends TestHelper {

    /*

     * These tests compare messages which could be localized, therefore

     * these tests compare messages only with English locales, and

     * for all other locales,  the exit values are checked.

     */

    static void runTest(File jarFile, String expectedErrorMessage) {

        TestResult tr = doExec(TestHelper.javaCmd,

                "-jar", jarFile.getAbsolutePath());

        if (isEnglishLocale() && !tr.contains(expectedErrorMessage)) {

            System.out.println(tr);

            throw new RuntimeException("expected string not found");

        }

        if (tr.isOK()) {

            System.out.println(tr);

            throw new RuntimeException("test exit with status 0");

        }

    }

    // Missing manifest entry

    static void test1() throws IOException {

        File jarFile = new File("missingmainentry.jar");

        createJar("cvf", jarFile.getName(), ".");

        runTest(jarFile, "no main manifest attribute");

    }

    // Entry point in manifest file has .class extension

    static void test2() throws IOException {

        File jarFile = new File("extensionmainentry.jar");

        createJar("Foo.class", jarFile, new File("Foo"), (String[])null);

        runTest(jarFile, "Error: Could not find or load main class");

    }

    // Entry point in manifest file is misspelled

    static void test3() throws IOException {

        File jarFile = new File("misspelledmainentry.jar");

        createJar("FooMIS", jarFile, new File("Foo"), (String[])null);

        runTest(jarFile, "Error: Could not find or load main class");

    }

    // Main-Class attribute is misspelled in manifest file

    static void test4() throws IOException {

        File jarFile = new File("misspelledMainAttribute.jar");

        File manifestFile = new File("manifest.txt");

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

        contents.add("MainClassName: Foo");

        createFile(manifestFile, contents);

        createJar("-cmf", manifestFile.getName(), jarFile.getName());

        runTest(jarFile, "no main manifest attribute");

    }

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

        test1();

        test2();

        test3();

        test4();

    }

}