setUpTestData for read-only fixtures

assertNumQueries on list endpoints

factory_boy factories defined

Factories used instead of objects.create

TestCase as default base class

Happy path and error tests present

content_type on POST/PUT requests

Authentication tests

No manual tearDown

setUp only for mutable data

TransactionTestCase for on_commit email test

TestCase for non-commit tests

mock.patch targets orders.views.charge_card

mock.patch targets orders.views.send_order_confirmation

override_settings for MAX_CART_ITEMS

factory_boy factories for test data

Both success and failure payment paths tested

Order status and payment record verified

Authentication required test

No manual tearDown