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) ...
