完善mock和测试

git-svn-id: http://code.alibabatech.com/svn/druid/trunk@828 b9813039-fb51-4c41-a8b9-e21c2acb5095

src/test/java/com/alibaba/druid/bvt/pool/basic/PoolableWrapperTest.java

@@ -0,0 +1,18 @@
+package com.alibaba.druid.bvt.pool.basic;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+import com.alibaba.druid.mock.MockConnection;
+import com.alibaba.druid.pool.PoolableWrapper;
+
+
+public class PoolableWrapperTest extends TestCase {
+    public void test_isWrapper() throws Exception {
+        PoolableWrapper wrapper = new PoolableWrapper(new MockConnection());
+        
+        Assert.assertEquals(false, wrapper.isWrapperFor(null));
+        Assert.assertEquals(true, wrapper.isWrapperFor(PoolableWrapper.class));
+        Assert.assertEquals(true, wrapper.isWrapperFor(MockConnection.class));
+    }
+}