public async Task Should_Success_Get_Tax_Generate_Data_Excel_Null_Parameter()
{
UnitPaymentOrderFacade facade = new UnitPaymentOrderFacade(GetServiceProvider(GetCurrentMethod()).Object, _dbContext(GetCurrentMethod()));
var model = await _dataUtil(facade, GetCurrentMethod()).GetTestData();
var Response = facade.GenerateExcelTax("", "", DateTime.MinValue, DateTime.MaxValue, DateTime.MinValue, DateTime.MaxValue, 7);
Assert.IsType <System.IO.MemoryStream>(Response);
}