/*
* Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
*
* 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.hazelcast.query.impl.getters;
import com.hazelcast.test.HazelcastParallelClassRunner;
import com.hazelcast.test.annotation.ParallelTest;
import com.hazelcast.test.annotation.QuickTest;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import java.math.BigDecimal;
import java.math.BigInteger;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
import static org.mockito.Mockito.mock;
@RunWith(HazelcastParallelClassRunner.class)
@Category({QuickTest.class, ParallelTest.class})
public class EvictableGetterCacheTest {
@Test
public void get_put_correctResult() {
// GIVEN
EvictableGetterCache cache = new EvictableGetterCache(10, 10, 0.5f);
Getter x = mock(Getter.class);
Getter y = mock(Getter.class);
// WHEN
cache.putGetter(String.class, "x", x);
cache.putGetter(String.class, "y", y);
// THEN
assertThat(cache.getGetter(String.class, "x"), equalTo(x));
assertThat(cache.getGetter(String.class, "y"), equalTo(y));
}
@Test
public void get_put_correctSize() {
// GIVEN
EvictableGetterCache cache = new EvictableGetterCache(10, 10, 0.5f);
Getter x = mock(Getter.class);
Getter y = mock(Getter.class);
// WHEN
cache.putGetter(String.class, "x", x);
cache.putGetter(Double.class, "y", y);
// THEN
assertThat(cache.getClassCacheSize(), equalTo(2));
assertThat(cache.getGetterPerClassCacheSize(String.class), equalTo(1));
assertThat(cache.getGetterPerClassCacheSize(Double.class), equalTo(1));
}
@Test
public void getterCache_evictLimitNotReached_noEviction() {
// GIVEN
int getterCacheSize = 10;
float evictPercentage = 0.3f;
EvictableGetterCache cache = new EvictableGetterCache(10, getterCacheSize, evictPercentage);
// WHEN
for (int i = 0; i < getterCacheSize - 1; i++) {
cache.putGetter(String.class, "x" + i, mock(Getter.class));
}
// THEN
assertThat(cache.getClassCacheSize(), equalTo(1));
assertThat(cache.getGetterPerClassCacheSize(String.class), equalTo(getterCacheSize - 1));
}
@Test
public void getterCache_evictLimitReached_evictionTriggered() {
// GIVEN
int getterCacheSize = 10;
float evictPercentage = 0.3f;
EvictableGetterCache cache = new EvictableGetterCache(10, getterCacheSize, evictPercentage);
// WHEN
for (int i = 0; i < getterCacheSize; i++) {
cache.putGetter(String.class, "x" + i, mock(Getter.class));
}
// THEN
int expectedSizeAfterEviction = (int) (getterCacheSize * (1 - evictPercentage));
assertThat(cache.getClassCacheSize(), equalTo(1));
assertThat(cache.getGetterPerClassCacheSize(String.class), equalTo(expectedSizeAfterEviction));
}
@Test
public void classCache_evictLimitNotReached_noEviction() {
// GIVEN
int classCacheSize = 10;
float evictPercentage = 0.3f;
EvictableGetterCache cache = new EvictableGetterCache(classCacheSize, 10, evictPercentage);
Class[] classes = {String.class, Character.class, Integer.class, Double.class, Byte.class, Long.class,
Number.class, Float.class, BigDecimal.class, BigInteger.class};
// WHEN
for (int i = 0; i < classCacheSize - 1; i++) {
cache.putGetter(classes[i], "x", mock(Getter.class));
}
// THEN
assertThat(cache.getClassCacheSize(), equalTo(classCacheSize - 1));
}
@Test
public void classCache_evictLimitReached_evictionTriggered() {
// GIVEN
int classCacheSize = 10;
float evictPercentage = 0.3f;
EvictableGetterCache cache = new EvictableGetterCache(classCacheSize, 10, evictPercentage);
Class[] classes = {String.class, Character.class, Integer.class, Double.class, Byte.class, Long.class,
Number.class, Float.class, BigDecimal.class, BigInteger.class};
// WHEN
for (int i = 0; i < classCacheSize; i++) {
cache.putGetter(classes[i], "x", mock(Getter.class));
}
// THEN
int expectedSizeAfterEviction = (int) (classCacheSize * (1 - evictPercentage));
assertThat(cache.getClassCacheSize(), equalTo(expectedSizeAfterEviction));
}
}