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/*
* Copyright (C) 2011 The Guava Authors
*
* 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.google.common.cache;
import static java.util.Arrays.asList;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import junit.framework.TestCase;
/**
* @author Charles Fry
*/
public class CacheManualTest extends TestCase {
public void testGetIfPresent() {
Cache<Object, Object> cache = CacheBuilder.newBuilder().build();
CacheStats stats = cache.stats();
assertEquals(0, stats.missCount());
assertEquals(0, stats.loadSuccessCount());
assertEquals(0, stats.loadExceptionCount());
assertEquals(0, stats.hitCount());
Object one = new Object();
Object two = new Object();
assertNull(cache.getIfPresent(one));
stats = cache.stats();
assertEquals(1, stats.missCount());
assertEquals(0, stats.loadSuccessCount());
assertEquals(0, stats.loadExceptionCount());
assertEquals(0, stats.hitCount());
assertNull(cache.asMap().get(one));
assertFalse(cache.asMap().containsKey(one));
assertFalse(cache.asMap().containsValue(two));
assertNull(cache.getIfPresent(two));
stats = cache.stats();
assertEquals(2, stats.missCount());
assertEquals(0, stats.loadSuccessCount());
assertEquals(0, stats.loadExceptionCount());
assertEquals(0, stats.hitCount());
assertNull(cache.asMap().get(two));
assertFalse(cache.asMap().containsKey(two));
assertFalse(cache.asMap().containsValue(one));
cache.put(one, two);
assertSame(two, cache.getIfPresent(one));
stats = cache.stats();
assertEquals(2, stats.missCount());
assertEquals(0, stats.loadSuccessCount());
assertEquals(0, stats.loadExceptionCount());
assertEquals(1, stats.hitCount());
assertSame(two, cache.asMap().get(one));
assertTrue(cache.asMap().containsKey(one));
assertTrue(cache.asMap().containsValue(two));
assertNull(cache.getIfPresent(two));
stats = cache.stats();
assertEquals(3, stats.missCount());
assertEquals(0, stats.loadSuccessCount());
assertEquals(0, stats.loadExceptionCount());
assertEquals(1, stats.hitCount());
assertNull(cache.asMap().get(two));
assertFalse(cache.asMap().containsKey(two));
assertFalse(cache.asMap().containsValue(one));
cache.put(two, one);
assertSame(two, cache.getIfPresent(one));
stats = cache.stats();
assertEquals(3, stats.missCount());
assertEquals(0, stats.loadSuccessCount());
assertEquals(0, stats.loadExceptionCount());
assertEquals(2, stats.hitCount());
assertSame(two, cache.asMap().get(one));
assertTrue(cache.asMap().containsKey(one));
assertTrue(cache.asMap().containsValue(two));
assertSame(one, cache.getIfPresent(two));
stats = cache.stats();
assertEquals(3, stats.missCount());
assertEquals(0, stats.loadSuccessCount());
assertEquals(0, stats.loadExceptionCount());
assertEquals(3, stats.hitCount());
assertSame(one, cache.asMap().get(two));
assertTrue(cache.asMap().containsKey(two));
assertTrue(cache.asMap().containsValue(one));
}
public void testGetAllPresent() {
Cache<Integer, Integer> cache = CacheBuilder.newBuilder().build();
CacheStats stats = cache.stats();
assertEquals(0, stats.missCount());
assertEquals(0, stats.loadSuccessCount());
assertEquals(0, stats.loadExceptionCount());
assertEquals(0, stats.hitCount());
assertEquals(ImmutableMap.of(), cache.getAllPresent(ImmutableList.<Integer>of()));
stats = cache.stats();
assertEquals(0, stats.missCount());
assertEquals(0, stats.loadSuccessCount());
assertEquals(0, stats.loadExceptionCount());
assertEquals(0, stats.hitCount());
assertEquals(ImmutableMap.of(), cache.getAllPresent(asList(1, 2, 3)));
stats = cache.stats();
assertEquals(3, stats.missCount());
assertEquals(0, stats.loadSuccessCount());
assertEquals(0, stats.loadExceptionCount());
assertEquals(0, stats.hitCount());
cache.put(2, 22);
assertEquals(ImmutableMap.of(2, 22), cache.getAllPresent(asList(1, 2, 3)));
stats = cache.stats();
assertEquals(5, stats.missCount());
assertEquals(0, stats.loadSuccessCount());
assertEquals(0, stats.loadExceptionCount());
assertEquals(1, stats.hitCount());
cache.put(3, 33);
assertEquals(ImmutableMap.of(2, 22, 3, 33), cache.getAllPresent(asList(1, 2, 3)));
stats = cache.stats();
assertEquals(6, stats.missCount());
assertEquals(0, stats.loadSuccessCount());
assertEquals(0, stats.loadExceptionCount());
assertEquals(3, stats.hitCount());
cache.put(1, 11);
assertEquals(ImmutableMap.of(1, 11, 2, 22, 3, 33), cache.getAllPresent(asList(1, 2, 3)));
stats = cache.stats();
assertEquals(6, stats.missCount());
assertEquals(0, stats.loadSuccessCount());
assertEquals(0, stats.loadExceptionCount());
assertEquals(6, stats.hitCount());
}
}
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