/*
* Copyright 2016 the original author or 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 io.atomix.catalyst.util;
import static org.testng.Assert.*;
import org.testng.annotations.Test;
@Test
public class LRUCacheTest {
public void testLRUBehavior() {
LRUCache<String, String> cache = new LRUCache<>(2);
cache.put("key1", "v1");
cache.put("key2", "v2");
// key3 should replace key1
cache.put("key3", "v3");
assertFalse(cache.containsKey("key1"));
// this marks key2 as most recently used
assertEquals("v2", cache.get("key2"));
// key4 should replace key3
cache.put("key4", "v4");
assertFalse(cache.containsKey("key3"));
}
}