/*
 * Copyright 2015 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.set.sorted.mutable;

import java.util.Collections;
import java.util.TreeSet;

import com.gs.collections.api.RichIterable;
import com.gs.collections.api.bag.sorted.MutableSortedBag;
import com.gs.collections.api.collection.MutableCollection;
import com.gs.collections.api.set.sorted.MutableSortedSet;
import com.gs.collections.impl.bag.sorted.mutable.TreeBag;
import com.gs.collections.impl.block.factory.Comparators;
import com.gs.collections.impl.block.factory.Predicates;
import com.gs.collections.impl.block.factory.Predicates2;
import com.gs.collections.impl.collection.mutable.AbstractSynchronizedCollectionTestCase;
import com.gs.collections.impl.list.mutable.FastList;
import com.gs.collections.impl.set.mutable.UnifiedSet;
import com.gs.collections.impl.test.SerializeTestHelper;
import com.gs.collections.impl.test.Verify;
import org.junit.Assert;
import org.junit.Test;

/**
 * JUnit test for {@link SynchronizedSortedSet}.
 */
public class SynchronizedSortedSetTest extends AbstractSynchronizedCollectionTestCase
{
    @Override
    protected <T> MutableCollection<T> newWith(T... littleElements)
    {
        return new SynchronizedSortedSet<>(SortedSetAdapter.adapt(new TreeSet<>(FastList.newListWith(littleElements))));
    }

    @Override
    @Test
    public void newEmpty()
    {
        super.newEmpty();

        Verify.assertInstanceOf(SynchronizedSortedSet.class, this.newWith().newEmpty());
    }

    @Override
    @Test
    public void removeIf()
    {
        MutableCollection<Integer> objects = this.newWith(1, 2, 3, 4);
        Assert.assertTrue(objects.removeIf(Predicates.equal(2)));
        Verify.assertSize(3, objects);
        Verify.assertContainsAll(objects, 1, 3, 4);
    }

    @Test
    public void removeWithIf()
    {
        MutableCollection<Integer> objects = this.newWith(1, 2, 3, 4);
        Assert.assertTrue(objects.removeIfWith(Predicates2.equal(), 2));
        Verify.assertSize(3, objects);
        Verify.assertContainsAll(objects, 1, 3, 4);
    }

    @Override
    @Test
    public void asUnmodifiable()
    {
        Verify.assertInstanceOf(UnmodifiableSortedSet.class, this.newWith().asUnmodifiable());
    }

    @Override
    @Test
    public void selectInstancesOf()
    {
        MutableSortedSet<Number> mutableSortedSet = SortedSetAdapter.adapt(new TreeSet<>((o1, o2) -> Double.compare(o1.doubleValue(), o2.doubleValue())));
        MutableSortedSet<Number> synchronizedSortedSet = new SynchronizedSortedSet<>(mutableSortedSet).withAll(FastList.newListWith(1, 2.0, 3, 4.0, 5));
        MutableSortedSet<Integer> integers = synchronizedSortedSet.selectInstancesOf(Integer.class);
        Assert.assertEquals(UnifiedSet.newSetWith(1, 3, 5), integers);
        Assert.assertEquals(FastList.newListWith(1, 3, 5), integers.toList());
    }

    @Override
    @Test
    public void equalsAndHashCode()
    {
        super.equalsAndHashCode();
        MutableSortedSet<Integer> integers = TreeSortedSet.newSetWith(Comparators.reverseNaturalOrder(), 1, 2, 3).asSynchronized();
        Verify.assertPostSerializedEqualsAndHashCode(this.newWith(1, 2, 3));
        Verify.assertPostSerializedEqualsAndHashCode(integers);
        Verify.assertInstanceOf(SynchronizedSortedSet.class, SerializeTestHelper.serializeDeserialize(integers));
        Verify.assertInstanceOf(SynchronizedSortedSet.class, SerializeTestHelper.serializeDeserialize(this.newWith(1, 2, 3)));
    }

    @Override
    @Test
    public void toSortedBag_natural_ordering()
    {
        RichIterable<Integer> integers = this.newWith(1, 2, 5, 3, 4);
        MutableSortedBag<Integer> bag = integers.toSortedBag();
        Verify.assertSortedBagsEqual(TreeBag.newBagWith(1, 2, 3, 4, 5), bag);
    }

    @Override
    @Test
    public void toSortedBag_with_comparator()
    {
        RichIterable<Integer> integers = this.newWith(2, 4, 1, 3);
        MutableSortedBag<Integer> bag = integers.toSortedBag(Collections.<Integer>reverseOrder());
        Verify.assertSortedBagsEqual(TreeBag.newBagWith(Collections.<Integer>reverseOrder(), 4, 3, 2, 1), bag);
    }

    @Override
    @Test(expected = NullPointerException.class)
    public void toSortedBag_with_null()
    {
        this.newWith(3, 4, null, 1, 2).toSortedBag();
    }

    @Override
    @Test
    public void toSortedBagBy()
    {
        RichIterable<Integer> integers = this.newWith(2, 4, 1, 3);
        MutableSortedBag<Integer> bag = integers.toSortedBagBy(String::valueOf);
        Verify.assertSortedBagsEqual(TreeBag.newBagWith(1, 2, 3, 4), bag);
    }

    @Override
    @Test(expected = NullPointerException.class)
    public void min_null_safe()
    {
        super.min_null_safe();
    }

    @Override
    @Test(expected = NullPointerException.class)
    public void max_null_safe()
    {
        super.max_null_safe();
    }
}