/* | |
* 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?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(); | |
} | |
} | |
} |