add h2 support

src/test/java/com/alibaba/druid/bvt/pool/TestH2.java

@@ -0,0 +1,50 @@
+package com.alibaba.druid.bvt.pool;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+import com.alibaba.druid.pool.DruidDataSource;
+import com.alibaba.druid.util.JdbcUtils;
+
+public class TestH2 extends TestCase {
+
+    private DruidDataSource dataSource;
+
+    protected void setUp() throws Exception {
+        dataSource = new DruidDataSource();
+        dataSource.setUrl("jdbc:h2:mem:");
+        dataSource.setPoolPreparedStatements(true);
+        dataSource.setMaxOpenPreparedStatements(10);
+        
+        dataSource.init();
+    }
+
+    protected void tearDown() throws Exception {
+        JdbcUtils.close(dataSource);
+    }
+
+    public void test_h2() throws Exception {
+        Assert.assertSame(JdbcUtils.H2, dataSource.getDbType());
+        
+        Connection conn = dataSource.getConnection();
+
+        PreparedStatement stmt = conn.prepareStatement("SELECT ?");
+
+        stmt.setString(1, "xxxx");
+
+        ResultSet rs = stmt.executeQuery();
+
+        rs.next();
+        Assert.assertEquals("xxxx", rs.getString(1));
+
+        rs.close();
+
+        stmt.close();
+
+        conn.close();
+    }
+}