public void Test() { IDataFacade facade = new DataFacade(); DataSet result = facade.ExecuteQuery("SELECT * FROM Sales.Currency"); int currentRows = result.Tables[0].Rows.Count; ///连续添加5条记录 facade.AddNewCurrency("DW1", "Known1"). AddNewCurrency("DW2", "Known2"). AddNewCurrency("DW3", "Known3"). AddNewCurrency("DW4", "Known4"). AddNewCurrency("DW5", "Known5"); result = facade.ExecuteQuery("SELECT * FROM Sales.Currency"); Assert.AreEqual <int>(currentRows + 5, result.Tables[0].Rows.Count); }