/*

 * Copyright (c) 2006, 2008, 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 4631471 4921212 4994637

 * @summary Tests HashMap encoding

 * @author Sergey Malenkov

 */

import java.util.HashMap;

import java.util.Map;

public final class java_util_HashMap extends AbstractTest<Map<String, String>> {

    public static void main(String[] args) {

        new java_util_HashMap().test(true);

    }

    @Override

    protected Map<String, String> getObject() {

        Map<String, String> map = new HashMap<String, String>();

        map.put(null, null);

        map.put("key", "value");

        map.put("key-null", "null-value");

        map.put("way", "remove");

        return map;

    }

    @Override

    protected Map<String, String> getAnotherObject() {

        Map<String, String> map = new HashMap<String, String>();

        map.put(null, "null-value");

        map.put("key", "value");

        map.put("key-null", null);

        return map;

    }

    @Override

    protected void validate(Map<String, String> before, Map<String, String> after) {

        super.validate(before, after);

        validate(before);

        validate(after);

    }

    private static void validate(Map<String, String> map) {

        switch (map.size()) {

        case 3:

            validate(map, null, "null-value");

            validate(map, "key", "value");

            validate(map, "key-null", null);

            break;

        case 4:

            validate(map, null, null);

            validate(map, "key", "value");

            validate(map, "key-null", "null-value");

            validate(map, "way", "remove");

            break;

        }

    }

    private static void validate(Map<String, String> map, String key, String value) {

        if (!map.containsKey(key))

            throw new Error("There are no key: " + key);

        if (!map.containsValue(value))

            throw new Error("There are no value: " + value);

        if (!isEqual(value, map.get(key)))

            throw new Error("There are no entry: " + key + ", " + value);

    }

    private static boolean isEqual(String str1, String str2) {

        return (str1 == null)

                ? str2 == null

                : str1.equals(str2);

    }

}