Task 7

Task

1. Under each app that we have, create a tests directory and don't forget __init__.py
2. If the app has endpoints, create a file tests/test_endpoints.py or tests/test_views.py
3. Create a global fixture auth_client that returns a function, if that function is passed a user instance, it'll return an instance of DRF's APIClient authenticated by that user instance, otherwise, it'll return an instance of APIClient authenticated by an arbitrary user instance. example:

def test_something(api_client):
    client = api_client(user) 
    # or
    client = api_client()
    

    client.get(url)

3. For each endpoint, test the following:
   • If the view has permission classes, test making requests that will obey and disobey the permissions, For example, if a view has IsAuthenticatedOrReadOnly permission class, test that making a write and non-authenticated request will return 403 Forbidden status code
   • If the view is expecting a certain set of required fields, test that making a request with one or more missing fields will return 400 status code and a proper error message
   • If a view is expected to return a set of fields, test that these fields are indeed returned, and that their values match what you expect. For example, if I make a request to /users/1 I expect that the data returned will be that that of the user whose id is 1
4. Your grade will be affected if a test fails.
5. What is the purpose of all of this? Testing is one of the essential tools for building a high quality & solid software, mainly, we write tests for the 2 following reasons:
   • Making sure our software behaves as expected when we support a new feature for the first time
   • Making sure our software still behaves as expected when we modify an existing feature