/* * Copyright 1999-2012 Alibaba Group. * * 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.alibaba.dubbo.config.cache; import junit.framework.TestCase; import org.junit.Assert; import org.junit.Test; import com.alibaba.dubbo.config.ApplicationConfig; import com.alibaba.dubbo.config.ProtocolConfig; import com.alibaba.dubbo.config.ReferenceConfig; import com.alibaba.dubbo.config.RegistryConfig; import com.alibaba.dubbo.config.ServiceConfig; /** * CacheTest * * @author william.liangf */ public class CacheTest extends TestCase { @Test public void testCache() throws Exception { ServiceConfig<CacheService> service = new ServiceConfig<CacheService>(); service.setApplication(new ApplicationConfig("cache-provider")); service.setRegistry(new RegistryConfig("N/A")); service.setProtocol(new ProtocolConfig("dubbo", 29582)); service.setInterface(CacheService.class.getName()); service.setRef(new CacheServiceImpl()); service.export(); try { ReferenceConfig<CacheService> reference = new ReferenceConfig<CacheService>(); reference.setApplication(new ApplicationConfig("cache-consumer")); reference.setInterface(CacheService.class); reference.setUrl("dubbo://127.0.0.1:29582?scope=remote&cache=true"); CacheService cacheService = reference.get(); try { // 测试缓存生效,多次调用返回同样的结果。(服务器端自增长返回值) String fix = null; for (int i = 0; i < 3; i ++) { String result = cacheService.findCache("0"); Assert.assertTrue(fix == null || fix.equals(result)); fix = result; Thread.sleep(100); } // LRU的缺省cache.size为1000,执行1001次,应有溢出 for (int n = 0; n < 1001; n ++) { String pre = null; for (int i = 0; i < 10; i ++) { String result = cacheService.findCache(String.valueOf(n)); Assert.assertTrue(pre == null || pre.equals(result)); pre = result; } } // 测试LRU有移除最开始的一个缓存项 String result = cacheService.findCache("0"); Assert.assertFalse(fix == null || fix.equals(result)); } finally { reference.destroy(); } } finally { service.unexport(); } } }