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);
}