add unit test cases for dubbo-filter module

Author: qinnnyul

dubbo-filter/dubbo-filter-cache/pom.xml

@@ -28,6 +28,7 @@
     <description>The cache module of dubbo project</description>
     <properties>
         <skip_maven_deploy>false</skip_maven_deploy>
+        <hazelcast_version>3.9-EA</hazelcast_version>
     </properties>
     <dependencies>
         <dependency>
@@ -42,7 +43,7 @@
         <dependency>
             <groupId>com.hazelcast</groupId>
             <artifactId>hazelcast</artifactId>
-            <version>3.9-EA</version>
+            <version>${hazelcast_version}</version>
         </dependency>
     </dependencies>
 </project>

dubbo-filter/dubbo-filter-cache/src/test/java/com/alibaba/dubbo/cache/support/AbstractCacheFactoryTest.java

@@ -0,0 +1,17 @@
+package com.alibaba.dubbo.cache.support;
+
+import com.alibaba.dubbo.cache.Cache;
+import com.alibaba.dubbo.common.URL;
+import com.alibaba.dubbo.rpc.Invocation;
+import com.alibaba.dubbo.rpc.RpcInvocation;
+
+public abstract class AbstractCacheFactoryTest {
+
+    protected Cache constructCache() {
+        URL url = URL.valueOf("test://test:11/test?cache=jcache");
+        Invocation invocation = new RpcInvocation();
+        return getCacheFactory().getCache(url, invocation);
+    }
+
+    protected abstract AbstractCacheFactory getCacheFactory();
+}

dubbo-filter/dubbo-filter-cache/src/test/java/com/alibaba/dubbo/cache/support/jcache/JCacheFactoryTest.java

@@ -0,0 +1,23 @@
+package com.alibaba.dubbo.cache.support.jcache;
+
+import com.alibaba.dubbo.cache.Cache;
+import com.alibaba.dubbo.cache.support.AbstractCacheFactory;
+import com.alibaba.dubbo.cache.support.AbstractCacheFactoryTest;
+import org.junit.Test;
+
+import static org.hamcrest.core.Is.is;
+import static org.junit.Assert.assertThat;
+
+public class JCacheFactoryTest extends AbstractCacheFactoryTest {
+
+    @Test
+    public void testJCacheFactory() throws Exception {
+        Cache cache = super.constructCache();
+        assertThat(cache instanceof JCache, is(true));
+    }
+
+    @Override
+    protected AbstractCacheFactory getCacheFactory() {
+        return new JCacheFactory();
+    }
+}

dubbo-filter/dubbo-filter-cache/src/test/java/com/alibaba/dubbo/cache/support/lru/LruCacheFactoryTest.java

@@ -0,0 +1,22 @@
+package com.alibaba.dubbo.cache.support.lru;
+
+import com.alibaba.dubbo.cache.Cache;
+import com.alibaba.dubbo.cache.support.AbstractCacheFactory;
+import com.alibaba.dubbo.cache.support.AbstractCacheFactoryTest;
+import org.junit.Test;
+
+import static org.hamcrest.core.Is.is;
+import static org.junit.Assert.assertThat;
+
+public class LruCacheFactoryTest extends AbstractCacheFactoryTest{
+    @Test
+    public void testLruCacheFactory() throws Exception {
+        Cache cache = super.constructCache();
+        assertThat(cache instanceof LruCache, is(true));
+    }
+
+    @Override
+    protected AbstractCacheFactory getCacheFactory() {
+        return new LruCacheFactory();
+    }
+}

dubbo-filter/dubbo-filter-cache/src/test/java/com/alibaba/dubbo/cache/support/threadlocal/ThreadLocalCacheFactoryTest.java

@@ -0,0 +1,22 @@
+package com.alibaba.dubbo.cache.support.threadlocal;
+
+import com.alibaba.dubbo.cache.Cache;
+import com.alibaba.dubbo.cache.support.AbstractCacheFactory;
+import com.alibaba.dubbo.cache.support.AbstractCacheFactoryTest;
+import org.junit.Test;
+
+import static org.hamcrest.core.Is.is;
+import static org.junit.Assert.assertThat;
+
+public class ThreadLocalCacheFactoryTest extends AbstractCacheFactoryTest {
+    @Test
+    public void testThreadLocalCacheFactory() throws Exception {
+        Cache cache = super.constructCache();
+        assertThat(cache instanceof ThreadLocalCache, is(true));
+    }
+
+    @Override
+    protected AbstractCacheFactory getCacheFactory() {
+        return new ThreadLocalCacheFactory();
+    }
+}