/*

 * Copyright (c) 2016, 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.

 */

package p3;

import p4.Foo;

import java.lang.module.ModuleDescriptor;

import java.lang.reflect.Field;

import static java.lang.module.ModuleDescriptor.Exports.Modifier.*;

/**

 * Test if m4 is an open module and p4 is package that m3 can access

 */

public class Main {

    public static void main(String... args) throws Exception {

        Module m4 = Foo.class.getModule();

        if (!m4.isOpen("p4")) {

            throw new RuntimeException("m3 can't access p4");

        }

        // Test if it can access a private field

        Foo foo = Foo.create("foo");

        Field field = Foo.class.getDeclaredField("name");

        field.setAccessible(true);

        String name = (String) field.get(foo);

        if (!name.equals("foo")) {

            throw new RuntimeException("unexpected Foo::name value = " + name);

        }

        checkOpenModule();

    }

    // check the module descriptor of the open module m4

    static void checkOpenModule() {

        ModuleDescriptor md = Foo.class.getModule().getDescriptor();

        System.out.println(md);

        if (!md.isOpen()) {

            throw new RuntimeException("m4 is a open module");

        }

        if (md.packages().size() != 1 || !md.packages().contains("p4")) {

            throw new RuntimeException("unexpected m4 packages: " + md.packages());

        }

        if (!md.opens().isEmpty()) {

            throw new RuntimeException("unexpected m4 opens: " + md.opens());

        }

    }

}