/*
* 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.map.mutable;
import java.util.Collections;
import com.gs.collections.api.bag.MutableBag;
import com.gs.collections.api.block.function.Function;
import com.gs.collections.api.block.function.Function2;
import com.gs.collections.api.block.function.Function3;
import com.gs.collections.api.block.procedure.Procedure;
import com.gs.collections.api.block.procedure.Procedure2;
import com.gs.collections.api.list.MutableList;
import com.gs.collections.api.map.ConcurrentMutableMap;
import com.gs.collections.api.map.MapIterable;
import com.gs.collections.api.map.MutableMap;
import com.gs.collections.api.partition.PartitionIterable;
import com.gs.collections.impl.bag.mutable.HashBag;
import com.gs.collections.impl.block.factory.Functions;
import com.gs.collections.impl.block.factory.IntegerPredicates;
import com.gs.collections.impl.block.factory.Predicates2;
import com.gs.collections.impl.factory.Bags;
import com.gs.collections.impl.factory.Maps;
import com.gs.collections.impl.list.Interval;
import com.gs.collections.impl.list.mutable.FastList;
import com.gs.collections.impl.parallel.ParallelIterate;
import com.gs.collections.impl.set.mutable.UnifiedSet;
import com.gs.collections.impl.test.Verify;
import com.gs.collections.impl.tuple.ImmutableEntry;
import org.junit.Assert;
import org.junit.Test;
import static com.gs.collections.impl.factory.Iterables.*;
/**
* JUnit test for {@link ConcurrentHashMapUnsafe}.
*/
public class ConcurrentHashMapUnsafeTest extends ConcurrentHashMapTestCase
{
public static final MutableMap<Integer, MutableBag<Integer>> SMALL_BAG_MUTABLE_MAP = Interval.oneTo(100).groupBy(new Function<Integer, Integer>()
{
public Integer valueOf(Integer each)
{
return each % 10;
}
}).toMap(Bags.mutable::of);
@Override
public <K, V> ConcurrentMutableMap<K, V> newMap()
{
return ConcurrentHashMapUnsafe.newMap();
}
@Override
public <K, V> ConcurrentMutableMap<K, V> newMapWithKeyValue(K key, V value)
{
return ConcurrentHashMapUnsafe.<K, V>newMap().withKeyValue(key, value);
}
@Override
public <K, V> ConcurrentMutableMap<K, V> newMapWithKeysValues(K key1, V value1, K key2, V value2)
{
return ConcurrentHashMapUnsafe.<K, V>newMap().withKeyValue(key1, value1).withKeyValue(key2, value2);
}
@Override
public <K, V> ConcurrentMutableMap<K, V> newMapWithKeysValues(K key1, V value1, K key2, V value2, K key3, V value3)
{
return ConcurrentHashMapUnsafe.<K, V>newMap()
.withKeyValue(key1, value1)
.withKeyValue(key2, value2)
.withKeyValue(key3, value3);
}
@Override
public <K, V> ConcurrentMutableMap<K, V> newMapWithKeysValues(K key1, V value1, K key2, V value2, K key3, V value3, K key4, V value4)
{
return ConcurrentHashMapUnsafe.<K, V>newMap()
.withKeyValue(key1, value1)
.withKeyValue(key2, value2)
.withKeyValue(key3, value3)
.withKeyValue(key4, value4);
}
@Test
public void doubleReverseTest()
{
FastList<String> source = FastList.newListWith("1", "2", "3");
MutableList<String> expectedDoubleReverse = source.toReversed().collect(new Function<String, String>()
{
private String visited = "";
public String valueOf(String object)
{
return this.visited += object;
}
}).toReversed();
Assert.assertEquals(FastList.newListWith("321", "32", "3"), expectedDoubleReverse);
MutableList<String> expectedNormal = source.collect(new Function<String, String>()
{
private String visited = "";
public String valueOf(String object)
{
return this.visited += object;
}
});
Assert.assertEquals(FastList.newListWith("1", "12", "123"), expectedNormal);
}
@Test
public void putIfAbsent()
{
ConcurrentMutableMap<Integer, Integer> map = this.newMapWithKeysValues(1, 1, 2, 2);
Assert.assertEquals(Integer.valueOf(1), map.putIfAbsent(1, 1));
Assert.assertNull(map.putIfAbsent(3, 3));
}
@Test
public void replace()
{
ConcurrentMutableMap<Integer, Integer> map = this.newMapWithKeysValues(1, 1, 2, 2);
Assert.assertEquals(Integer.valueOf(1), map.replace(1, 7));
Assert.assertEquals(Integer.valueOf(7), map.get(1));
Assert.assertNull(map.replace(3, 3));
}
@Test
public void entrySetContains()
{
MutableMap<String, Integer> map = this.newMapWithKeysValues("One", Integer.valueOf(1), "Two", Integer.valueOf(2), "Three", Integer.valueOf(3));
Assert.assertFalse(map.entrySet().contains(null));
Assert.assertFalse(map.entrySet().contains(ImmutableEntry.of("Zero", Integer.valueOf(0))));
Assert.assertTrue(map.entrySet().contains(ImmutableEntry.of("One", Integer.valueOf(1))));
}
@Test
public void entrySetRemove()
{
MutableMap<String, Integer> map = this.newMapWithKeysValues("One", Integer.valueOf(1), "Two", Integer.valueOf(2), "Three", Integer.valueOf(3));
Assert.assertFalse(map.entrySet().remove(null));
Assert.assertFalse(map.entrySet().remove(ImmutableEntry.of("Zero", Integer.valueOf(0))));
Assert.assertTrue(map.entrySet().remove(ImmutableEntry.of("One", Integer.valueOf(1))));
}
@Test
public void replaceWithOldValue()
{
ConcurrentMutableMap<Integer, Integer> map = this.newMapWithKeysValues(1, 1, 2, 2);
Assert.assertTrue(map.replace(1, 1, 7));
Assert.assertEquals(Integer.valueOf(7), map.get(1));
Assert.assertFalse(map.replace(2, 3, 3));
}
@Test
public void removeWithKeyValue()
{
ConcurrentMutableMap<Integer, Integer> map = this.newMapWithKeysValues(1, 1, 2, 2);
Assert.assertTrue(map.remove(1, 1));
Assert.assertFalse(map.remove(2, 3));
}
@Override
@Test
public void removeFromEntrySet()
{
MutableMap<String, Integer> map = this.newMapWithKeysValues("One", 1, "Two", 2, "Three", 3);
Assert.assertTrue(map.entrySet().remove(ImmutableEntry.of("Two", 2)));
Assert.assertEquals(UnifiedMap.newWithKeysValues("One", 1, "Three", 3), map);
Assert.assertFalse(map.entrySet().remove(ImmutableEntry.of("Four", 4)));
Verify.assertEqualsAndHashCode(UnifiedMap.newWithKeysValues("One", 1, "Three", 3), map);
}
@Override
@Test
public void removeAllFromEntrySet()
{
MutableMap<String, Integer> map = this.newMapWithKeysValues("One", 1, "Two", 2, "Three", 3);
Assert.assertTrue(map.entrySet().removeAll(FastList.newListWith(
ImmutableEntry.of("One", 1),
ImmutableEntry.of("Three", 3))));
Assert.assertEquals(UnifiedMap.newWithKeysValues("Two", 2), map);
Assert.assertFalse(map.entrySet().removeAll(FastList.newListWith(ImmutableEntry.of("Four", 4))));
Verify.assertEqualsAndHashCode(UnifiedMap.newWithKeysValues("Two", 2), map);
}
@Override
@Test
public void keySetEqualsAndHashCode()
{
MutableMap<String, Integer> map = this.newMapWithKeysValues("One", 1, "Two", 2, "Three", 3);
Verify.assertEqualsAndHashCode(UnifiedSet.newSetWith("One", "Two", "Three"), map.keySet());
}
@Test
public void equalsEdgeCases()
{
Assert.assertNotEquals(ConcurrentHashMapUnsafe.newMap().withKeyValue(1, 1), ConcurrentHashMapUnsafe.newMap());
Assert.assertNotEquals(ConcurrentHashMapUnsafe.newMap().withKeyValue(1, 1), ConcurrentHashMapUnsafe.newMap().withKeyValue(1, 1).withKeyValue(2, 2));
}
@Test(expected = IllegalArgumentException.class)
public void negativeInitialSize()
{
ConcurrentHashMapUnsafe.newMap(-1);
}
@Override
@Test
public void partition_value()
{
MapIterable<String, Integer> map = this.newMapWithKeysValues(
"A", 1,
"B", 2,
"C", 3,
"D", 4);
PartitionIterable<Integer> partition = map.partition(IntegerPredicates.isEven());
Assert.assertEquals(iSet(2, 4), partition.getSelected().toSet());
Assert.assertEquals(iSet(1, 3), partition.getRejected().toSet());
}
@Override
@Test
public void partitionWith_value()
{
MapIterable<String, Integer> map = this.newMapWithKeysValues(
"A", 1,
"B", 2,
"C", 3,
"D", 4);
PartitionIterable<Integer> partition = map.partitionWith(Predicates2.in(), map.select(IntegerPredicates.isEven()));
Assert.assertEquals(iSet(2, 4), partition.getSelected().toSet());
Assert.assertEquals(iSet(1, 3), partition.getRejected().toSet());
}
@Test
public void parallelGroupByIntoConcurrentHashMap()
{
MutableMap<Integer, MutableBag<Integer>> actual = ConcurrentHashMapUnsafe.newMap();
ParallelIterate.forEach(Interval.oneTo(100), each -> actual.getIfAbsentPut(each % 10, () -> HashBag.<Integer>newBag().asSynchronized()).add(each), 10, this.executor);
Verify.assertEqualsAndHashCode(SMALL_BAG_MUTABLE_MAP, actual);
}
@Test
public void parallelForEachValue()
{
ConcurrentHashMapUnsafe<Integer, Integer> source =
ConcurrentHashMapUnsafe.newMap(Interval.oneTo(100).toMap(Functions.getIntegerPassThru(), Functions.getIntegerPassThru()));
MutableMap<Integer, MutableBag<Integer>> actual = ConcurrentHashMapUnsafe.newMap();
Procedure<Integer> procedure = each -> actual.getIfAbsentPut(each % 10, () -> HashBag.<Integer>newBag().asSynchronized()).add(each);
source.parallelForEachValue(FastList.newList(Collections.nCopies(5, procedure)), this.executor);
Verify.assertEqualsAndHashCode(SMALL_BAG_MUTABLE_MAP, actual);
}
@Test
public void parallelForEachEntry()
{
ConcurrentHashMapUnsafe<Integer, Integer> source =
ConcurrentHashMapUnsafe.newMap(Interval.oneTo(100).toMap(Functions.getIntegerPassThru(), Functions.getIntegerPassThru()));
MutableMap<Integer, MutableBag<Integer>> actual = ConcurrentHashMapUnsafe.newMap();
Procedure2<Integer, Integer> procedure2 = (key, value) -> actual.getIfAbsentPut(value % 10, () -> HashBag.<Integer>newBag().asSynchronized()).add(value);
source.parallelForEachKeyValue(FastList.newList(Collections.nCopies(5, procedure2)), this.executor);
Verify.assertEqualsAndHashCode(SMALL_BAG_MUTABLE_MAP, actual);
}
@Test
public void putAllInParallelSmallMap()
{
ConcurrentHashMapUnsafe<Integer, Integer> source = ConcurrentHashMapUnsafe.newMap(Interval.oneTo(100).toMap(Functions.getIntegerPassThru(), Functions.getIntegerPassThru()));
ConcurrentHashMapUnsafe<Integer, Integer> target = ConcurrentHashMapUnsafe.newMap();
target.putAllInParallel(source, 100, this.executor);
Verify.assertEqualsAndHashCode(source, target);
}
@Test
public void putAllInParallelLargeMap()
{
ConcurrentHashMapUnsafe<Integer, Integer> source = ConcurrentHashMapUnsafe.newMap(Interval.oneTo(600).toMap(Functions.getIntegerPassThru(), Functions.getIntegerPassThru()));
ConcurrentHashMapUnsafe<Integer, Integer> target = ConcurrentHashMapUnsafe.newMap();
target.putAllInParallel(source, 100, this.executor);
Verify.assertEqualsAndHashCode(source, target);
}
@Test
public void concurrentPutGetPutAllRemoveContainsKeyContainsValueGetIfAbsentPutTest()
{
ConcurrentHashMapUnsafe<Integer, Integer> map1 = ConcurrentHashMapUnsafe.newMap();
ConcurrentHashMapUnsafe<Integer, Integer> map2 = ConcurrentHashMapUnsafe.newMap();
ParallelIterate.forEach(Interval.oneTo(100), each -> {
map1.put(each, each);
Assert.assertEquals(each, map1.get(each));
map2.putAll(Maps.mutable.of(each, each));
map1.remove(each);
map1.putAll(Maps.mutable.of(each, each));
Assert.assertEquals(each, map2.get(each));
map2.remove(each);
Assert.assertNull(map2.get(each));
Assert.assertFalse(map2.containsValue(each));
Assert.assertFalse(map2.containsKey(each));
Assert.assertEquals(each, map2.getIfAbsentPut(each, Functions.getIntegerPassThru()));
Assert.assertTrue(map2.containsValue(each));
Assert.assertTrue(map2.containsKey(each));
Assert.assertEquals(each, map2.getIfAbsentPut(each, Functions.getIntegerPassThru()));
map2.remove(each);
Assert.assertEquals(each, map2.getIfAbsentPutWith(each, Functions.getIntegerPassThru(), each));
Assert.assertEquals(each, map2.getIfAbsentPutWith(each, Functions.getIntegerPassThru(), each));
Assert.assertEquals(each, map2.getIfAbsentPut(each, Functions.getIntegerPassThru()));
}, 1, this.executor);
Verify.assertEqualsAndHashCode(map1, map2);
}
@Test
public void concurrentPutIfAbsentGetIfPresentPutTest()
{
ConcurrentHashMapUnsafe<Integer, Integer> map1 = ConcurrentHashMapUnsafe.newMap();
ConcurrentHashMapUnsafe<Integer, Integer> map2 = ConcurrentHashMapUnsafe.newMap();
ParallelIterate.forEach(Interval.oneTo(100), each -> {
map1.put(each, each);
map1.put(each, each);
Assert.assertEquals(each, map1.get(each));
map2.putAll(Maps.mutable.of(each, each));
map2.putAll(Maps.mutable.of(each, each));
map1.remove(each);
Assert.assertNull(map1.putIfAbsentGetIfPresent(each, new KeyTransformer(), new ValueFactory(), null, null));
Assert.assertEquals(each, map1.putIfAbsentGetIfPresent(each, new KeyTransformer(), new ValueFactory(), null, null));
}, 1, this.executor);
Assert.assertEquals(map1, map2);
}
@Test
public void concurrentClear()
{
ConcurrentHashMapUnsafe<Integer, Integer> map = ConcurrentHashMapUnsafe.newMap();
ParallelIterate.forEach(Interval.oneTo(100), each -> {
for (int i = 0; i < 10; i++)
{
map.put(each + i * 1000, each);
}
map.clear();
}, 1, this.executor);
Verify.assertEmpty(map);
}
@Test
public void concurrentRemoveAndPutIfAbsent()
{
ConcurrentHashMapUnsafe<Integer, Integer> map1 = ConcurrentHashMapUnsafe.newMap();
ParallelIterate.forEach(Interval.oneTo(100), each -> {
Assert.assertNull(map1.put(each, each));
map1.remove(each);
Assert.assertNull(map1.get(each));
Assert.assertEquals(each, map1.getIfAbsentPut(each, Functions.getIntegerPassThru()));
map1.remove(each);
Assert.assertNull(map1.get(each));
Assert.assertEquals(each, map1.getIfAbsentPutWith(each, Functions.getIntegerPassThru(), each));
map1.remove(each);
Assert.assertNull(map1.get(each));
for (int i = 0; i < 10; i++)
{
Assert.assertNull(map1.putIfAbsent(each + i * 1000, each));
}
for (int i = 0; i < 10; i++)
{
Assert.assertEquals(each, map1.putIfAbsent(each + i * 1000, each));
}
for (int i = 0; i < 10; i++)
{
Assert.assertEquals(each, map1.remove(each + i * 1000));
}
}, 1, this.executor);
}
@Test
public void emptyToString()
{
ConcurrentHashMapUnsafe<?, ?> empty = ConcurrentHashMapUnsafe.newMap(0);
Assert.assertEquals("{}", empty.toString());
}
private static class KeyTransformer implements Function2<Integer, Integer, Integer>
{
private static final long serialVersionUID = 1L;
@Override
public Integer value(Integer key, Integer value)
{
return key;
}
}
private static class ValueFactory implements Function3<Object, Object, Integer, Integer>
{
private static final long serialVersionUID = 1L;
@Override
public Integer value(Object argument1, Object argument2, Integer key)
{
return key;
}
}
}