| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. The ASF licenses this file to You |
| * 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. For additional information regarding |
| * copyright in this work, please see the NOTICE file in the top level |
| * directory of this distribution. |
| */ |
| |
| package org.apache.roller.weblogger.util; |
| |
| import junit.framework.Test; |
| import junit.framework.TestCase; |
| import junit.framework.TestSuite; |
| |
| |
| /** |
| * Test LRUCache2. |
| */ |
| public class LRUCache2Test extends TestCase { |
| |
| /** |
| * @see junit.framework.TestCase#setUp() |
| */ |
| protected void setUp() throws Exception { |
| // TODO Auto-generated method stub |
| super.setUp(); |
| } |
| |
| public void testTimeout() { |
| // Create cache with 100 item limit and 15 second timeout |
| TestEnvironment env = new TestEnvironment(); |
| LRUCache2 cache = new LRUCache2(env, 100, 15000); |
| |
| env.time = 1000; |
| cache.put("key1", "string1"); |
| cache.put("key2", "string2"); |
| cache.put("key3", "string3"); |
| assertNotNull(cache.get("key1")); |
| assertNotNull(cache.get("key2")); |
| assertNotNull(cache.get("key3")); |
| |
| env.time = 16000; |
| assertNull(cache.get("key1")); |
| assertNull(cache.get("key2")); |
| assertNull(cache.get("key3")); |
| } |
| |
| public void testLRU() { |
| // Create cache with 3 item limit and 15 second timeout |
| TestEnvironment env = new TestEnvironment(); |
| LRUCache2 cache = new LRUCache2(env, 3, 15000); |
| |
| env.time = 1000; |
| cache.put("key1", "string1"); |
| cache.put("key2", "string2"); |
| cache.put("key3", "string3"); |
| assertNotNull(cache.get("key1")); |
| assertNotNull(cache.get("key2")); |
| assertNotNull(cache.get("key3")); |
| |
| try { Thread.sleep(200); } catch (InterruptedException ignored) {} |
| |
| // accessing key1 and key2 will make key3 LRU |
| cache.get("key1"); |
| cache.get("key2"); |
| |
| // adding a forth key will push out the LRU entry |
| cache.put("key4", "string4"); |
| assertNull(cache.get("key3")); |
| } |
| |
| public void testPurge() { |
| // Create cache with 100 item limit and 15 second timeout |
| TestEnvironment env = new TestEnvironment(); |
| LRUCache2 cache = new LRUCache2(env, 100, 15000); |
| |
| env.time = 1000; |
| cache.put("key1", "string1"); |
| cache.put("key2", "string2"); |
| cache.put("key3", "string3"); |
| assertNotNull(cache.get("key1")); |
| assertNotNull(cache.get("key2")); |
| assertNotNull(cache.get("key3")); |
| |
| cache.purge(new String[] {"key1", "key2"}); |
| assertEquals(1, cache.size()); |
| |
| cache.purge(); |
| assertEquals(0, cache.size()); |
| } |
| |
| /** |
| * @see junit.framework.TestCase#tearDown() |
| */ |
| protected void tearDown() throws Exception { |
| // TODO Auto-generated method stub |
| super.tearDown(); |
| } |
| |
| public static class TestEnvironment implements LRUCache2.Environment { |
| public long time = 0; |
| public long getCurrentTimeInMillis() { |
| return time; |
| } |
| } |
| |
| public static Test suite() { |
| return new TestSuite(LRUCache2Test.class); |
| } |
| |
| } |