Merge pull request #6384 from taosdata/xiaoping/add_test_case

add jdbc test case

src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBPreparedStatementTest.java

@@ -296,6 +296,14 @@ public class TSDBPreparedStatementTest {
         }
     }
     
+    @Test
+    public void createTwoSameDbTest() throws SQLException {
+        Statement stmt = conn.createStatement();                
+                
+        stmt.execute("create database dbtest");
+        Assert.assertThrows(SQLException.class, () -> stmt.execute("create database dbtest"));                
+    }
+
     @Test
     public void setBoolean() throws SQLException {
         // given