Django Test Client Method Override Header
You need to specify header as 'HTTP_X_HTTP_METHOD_OVERRIDE' instead of 'X_HTTP_METHOD_OVERRIDE' i.e. add HTTP_ at the beginning of the header.
header = {'HTTP_X_HTTP_METHOD_OVERRIDE': 'PUT'}response = client.post('/model/1/', content_type='application/json', data=post_data_clean, **header)From the Django documentation:
HTTP headers in the request are converted to
METAkeys by converting all characters to uppercase, replacing any hyphens with underscores and adding anHTTP_prefix to the name. So, for example, a header calledX-Benderwould be mapped to theMETAkeyHTTP_X_BENDER.
Also, you can pass headers to the constructor of the Client:
from django.test import Clientclient = Client(HTTP_USER_AGENT="Mozilla/5.0 ...", HTTP_X_USER_ID="982734")This way every request will contain default headers.
PS: This approach is valid for DRF TestApiClient and ApiRequestFactory.