/*
 * Copyright 2021 dorkbox, llc
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package dorkbox.serializers;

import static dorkbox.serializers.KryoTest.deserialize;
import static dorkbox.serializers.KryoTest.serialize;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;

import java.lang.Character.UnicodeBlock;

import org.junit.Before;
import org.junit.Test;
import org.objenesis.ObjenesisStd;
import org.objenesis.strategy.StdInstantiatorStrategy;

import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.util.DefaultInstantiatorStrategy;


/**
 * Test for {@link UnicodeBlockSerializer}.
 *
 * @author <a href="mailto:seahen123@gmail.com">Chris Hennick</a>
 */
public class UnicodeBlockSerializerTest {

    private static final String NONEXISTENT_BLOCK_NAME = "RURITANIAN";
    private Kryo kryo;

    private static class ThingWithUnicodeBlock {
        final UnicodeBlock unicodeBlock;

        private ThingWithUnicodeBlock(UnicodeBlock unicodeBlock) {
            this.unicodeBlock = unicodeBlock;
        }
    }

    @Before
    public void beforeTest() {
        kryo = new Kryo();
        final DefaultInstantiatorStrategy instantiatorStrategy = new DefaultInstantiatorStrategy();
        instantiatorStrategy.setFallbackInstantiatorStrategy(new StdInstantiatorStrategy());
        kryo.setInstantiatorStrategy(instantiatorStrategy);
        kryo.register(ThingWithUnicodeBlock.class);
        kryo.register(UnicodeBlock.class, new UnicodeBlockSerializer());
    }

    @Test
    public void testBasicRoundTrip() {
        byte[] serialized = serialize(kryo, UnicodeBlock.UNIFIED_CANADIAN_ABORIGINAL_SYLLABICS);
        assertSame(deserialize(kryo, serialized, UnicodeBlock.class),
                UnicodeBlock.UNIFIED_CANADIAN_ABORIGINAL_SYLLABICS);
    }

    @Test
    public void testDeserializingUnknownInstanceReturnsNull() {
        byte[] serialized = serialize(kryo, new ObjenesisStd().newInstance(UnicodeBlock.class));
        assertNull(deserialize(kryo, serialized, UnicodeBlock.class));
    }

    @Test
    public void testCopyContainingObject() {
        ThingWithUnicodeBlock original = new ThingWithUnicodeBlock(UnicodeBlock.GREEK);
        assertSame(kryo.copy(original).unicodeBlock, UnicodeBlock.GREEK);
    }
}