/*

 * Copyright (c) 2018, 2019, 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.

 */

import java.io.File;

import java.nio.file.Files;

/*

 * @test

 * @summary jpackage create image with no main class arguments and with main-class attribute

 * @library ../helpers

 * @build JPackageHelper

 * @build JPackagePath

 * @modules jdk.jpackage

 * @run main/othervm -Xmx512m MainClassErrorTest

 */

public class MainClassErrorTest {

    private static final String OUTPUT = "output";

    private static final String app = JPackagePath.getApp();

    private static final String appOutput = JPackagePath.getAppOutputFile();

    private static final String[] CMD = {

        "--package-type", "app-image",

        "--input", "input",

        "--name", "test",

        "--main-jar", "hello.jar"};

    private static void validate(String output) throws Exception {

        String[] result = JPackageHelper.splitAndFilter(output);

        if (result.length != 2) {

            throw new AssertionError(

                   "Unexpected number of lines: " + result.length);

        }

        if (!result[0].trim().contains("main class was not specified")) {

            throw new AssertionError("Unexpected result[0]: " + result[0]);

        }

        if (!result[1].trim().startsWith("Advice to fix: ")) {

            throw new AssertionError("Unexpected result[1]: " + result[1]);

        }

    }

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

        JPackageHelper.createHelloImageJar();

        JPackageHelper.deleteOutputFolder(OUTPUT);

        validate(JPackageHelper.executeCLI(false, CMD));

        JPackageHelper.deleteOutputFolder(OUTPUT);

        validate(JPackageHelper.executeToolProvider(false, CMD));

    }

}