/*
 * 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.set.mutable;

import java.util.Collections;

import com.gs.collections.api.RichIterable;
import com.gs.collections.api.bag.sorted.MutableSortedBag;
import com.gs.collections.api.set.MutableSet;
import com.gs.collections.impl.bag.sorted.mutable.TreeBag;
import com.gs.collections.impl.collection.mutable.AbstractCollectionTestCase;
import com.gs.collections.impl.test.Verify;
import org.junit.Assert;
import org.junit.Test;

public class MultiReaderUnifiedSetAsWriteUntouchableTest extends AbstractCollectionTestCase
{
    @Override
    protected <T> MutableSet<T> newWith(T... littleElements)
    {
        return MultiReaderUnifiedSet.newSetWith(littleElements).asWriteUntouchable();
    }

    @Override
    public void getLast()
    {
        Assert.assertNotNull(this.newWith(1, 2, 3).getLast());
        Assert.assertNull(this.newWith().getLast());
    }

    @Override
    @Test
    public void makeString()
    {
        Assert.assertEquals("1, 2, 3", this.newWith(1, 2, 3).makeString());
    }

    @Override
    @Test
    public void appendString()
    {
        Appendable builder = new StringBuilder();
        this.newWith(1, 2, 3).appendString(builder);
        Assert.assertEquals("1, 2, 3", builder.toString());
    }

    @Override
    @Test
    public void testToString()
    {
        Assert.assertEquals("[1, 2, 3]", this.newWith(1, 2, 3).toString());
    }

    @Override
    @Test
    public void asSynchronized()
    {
        Verify.assertThrows(UnsupportedOperationException.class, () -> this.newWith().asSynchronized());
    }

    @Override
    @Test
    public void asUnmodifiable()
    {
        Verify.assertThrows(UnsupportedOperationException.class, () -> this.newWith().asUnmodifiable());
    }

    @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);
    }
}