Python Programming Blueprints

Testing the cancel order function 

The first method that we are going to test is the cancel_orders method. As the name says, it will cancel an order. There a few things we want to test in this method:

• The first test is quite straightforward; we only want to test if we can cancel an order, setting its status to Cancelled
• The second test is that it shouldn't be possible to cancel orders that have not been received; in other words, only the orders that have the current status set to Received can be canceled
• We need to test if the correct exception is raised in case we pass an invalid argument to the cancel_order method

With that said, let's add our tests:

def test_cancel_order(self):    order = Order.objects.get(pk=1) self.assertIsNotNone(order) ...