/*
 * 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.test.map.mutable;

import java.util.Collection;
import java.util.Iterator;
import java.util.Random;
import java.util.Set;

import com.gs.collections.api.map.MutableMap;
import com.gs.collections.impl.map.mutable.UnifiedMap;
import com.gs.collections.test.NoIteratorTestCase;
import com.gs.junit.runners.Java8Runner;
import org.junit.Assert;
import org.junit.runner.RunWith;

@RunWith(Java8Runner.class)
public class UnifiedMapNoIteratorTest implements MutableMapTestCase, NoIteratorTestCase
{
    private static final long CURRENT_TIME_MILLIS = System.currentTimeMillis();

    @SafeVarargs
    @Override
    public final <T> MutableMap<Object, T> newWith(T... elements)
    {
        Random random = new Random(CURRENT_TIME_MILLIS);
        MutableMap<Object, T> result = new UnifiedMapNoIterator<>();
        for (T each : elements)
        {
            Assert.assertNull(result.put(random.nextDouble(), each));
        }
        return result;
    }

    @Override
    public void Iterable_next()
    {
        NoIteratorTestCase.super.Iterable_next();
    }

    @Override
    public void Iterable_remove()
    {
        NoIteratorTestCase.super.Iterable_remove();
    }

    @Override
    public void RichIterable_getFirst()
    {
        NoIteratorTestCase.super.RichIterable_getFirst();
    }

    @Override
    public void RichIterable_getLast()
    {
        NoIteratorTestCase.super.RichIterable_getLast();
    }

    @Override
    public void RichIterable_getFirst_and_getLast()
    {
        // Not applicable
    }

    @Override
    public void RichIterable_getLast_empty_null()
    {
        // Not applicable
    }

    public static class UnifiedMapNoIterator<K, V> extends UnifiedMap<K, V>
    {
        @Override
        public Iterator<V> iterator()
        {
            throw new AssertionError("No iteration patterns should delegate to iterator()");
        }

        @Override
        public Set<Entry<K, V>> entrySet()
        {
            return new EntrySetNoIterator();
        }

        @Override
        public Set<K> keySet()
        {
            return new KeySetNoIterator();
        }

        @Override
        public Collection<V> values()
        {
            return new ValuesCollectionNoIterator();
        }

        public class EntrySetNoIterator extends EntrySet
        {
            @Override
            public Iterator<Entry<K, V>> iterator()
            {
                throw new AssertionError("No iteration patterns should delegate to iterator()");
            }
        }

        public class KeySetNoIterator extends KeySet
        {
            @Override
            public Iterator<K> iterator()
            {
                throw new AssertionError("No iteration patterns should delegate to iterator()");
            }
        }

        public class ValuesCollectionNoIterator extends ValuesCollection
        {
            @Override
            public Iterator<V> iterator()
            {
                throw new AssertionError("No iteration patterns should delegate to iterator()");
            }
        }
    }
}