add testcase

src/test/java/com/alibaba/druid/pool/DBCPTest.java

@@ -0,0 +1,35 @@
+package com.alibaba.druid.pool;
+
+import java.sql.CallableStatement;
+import java.sql.Connection;
+
+import junit.framework.TestCase;
+
+import org.apache.commons.dbcp.BasicDataSource;
+
+import com.alibaba.druid.mock.MockDriver;
+
+public class DBCPTest extends TestCase {
+
+    public void test_dbcp() throws Exception {
+        BasicDataSource dataSource = new BasicDataSource();
+        dataSource.setDriverClassName(MockDriver.class.getName());
+        dataSource.setUrl("jdbc:mock:xxx");
+        dataSource.setMaxOpenPreparedStatements(100);
+        dataSource.setPoolPreparedStatements(true);
+
+        final String sql = "selelct 1";
+        {
+            Connection conn = dataSource.getConnection();
+            CallableStatement stmt = conn.prepareCall(sql);
+            stmt.close();
+            conn.close();
+        }
+        {
+            Connection conn = dataSource.getConnection();
+            CallableStatement stmt = conn.prepareCall(sql);
+            stmt.close();
+            conn.close();
+        }
+    }
+}