/*
 * Copyright 2014 Goldman Sachs.
 *
 * 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 com.gs.collections.impl.map.strategy.immutable;

import com.gs.collections.api.block.HashingStrategy;
import com.gs.collections.api.map.ImmutableMap;
import com.gs.collections.impl.block.factory.HashingStrategies;
import com.gs.collections.impl.map.immutable.ImmutableMapTestCase;
import com.gs.collections.impl.map.strategy.mutable.UnifiedMapWithHashingStrategy;
import com.gs.collections.impl.math.IntegerSum;
import com.gs.collections.impl.math.Sum;
import com.gs.collections.impl.parallel.BatchIterable;
import com.gs.collections.impl.test.SerializeTestHelper;
import com.gs.collections.impl.test.Verify;
import org.junit.Assert;
import org.junit.Test;

public class ImmutableUnifiedMapWithHashingStrategyTest extends ImmutableMapTestCase
{
    //Not using the static factor method in order to have concrete types for test cases
    private static final HashingStrategy<Integer> HASHING_STRATEGY = HashingStrategies.nullSafeHashingStrategy(new HashingStrategy<Integer>()
    {
        public int computeHashCode(Integer object)
        {
            return object.hashCode();
        }

        public boolean equals(Integer object1, Integer object2)
        {
            return object1.equals(object2);
        }
    });

    @Override
    @Test
    public void equalsAndHashCode()
    {
        super.equalsAndHashCode();
        ImmutableMap<Integer, String> deserialized = SerializeTestHelper.serializeDeserialize(this.classUnderTest());
        Verify.assertInstanceOf(ImmutableUnifiedMapWithHashingStrategy.class, deserialized);
    }

    @Override
    protected ImmutableMap<Integer, String> classUnderTest()
    {
        return UnifiedMapWithHashingStrategy.newWithKeysValues(HASHING_STRATEGY, 1, "1", 2, "2", 3, "3", 4, "4").toImmutable();
    }

    @Override
    protected int size()
    {
        return 4;
    }

    @Test
    @Override
    public void testToString()
    {
        Assert.assertEquals("{1=1, 2=2, 3=3, 4=4}", this.classUnderTest().toString());
    }

    @Test
    public void getBatchCount()
    {
        BatchIterable<Integer> integerBatchIterable = (BatchIterable<Integer>) this.classUnderTest();
        Assert.assertEquals(5, integerBatchIterable.getBatchCount(3));
    }

    @Test
    public void batchForEach()
    {
        Sum sum = new IntegerSum(0);
        BatchIterable<String> integerBatchIterable = (BatchIterable<String>) this.classUnderTest();
        integerBatchIterable.batchForEach(each -> sum.add(Integer.valueOf(each)), 0, 1);
        Assert.assertEquals(10, sum.getValue());
    }
}