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from django.test import TestCase
from djangorestframework.tests.utils import RequestFactory
from djangorestframework.content import ContentMixin, StandardContentMixin, OverloadedContentMixin
class TestContentMixins(TestCase):
def setUp(self):
self.req = RequestFactory()
# Interface tests
def test_content_mixin_interface(self):
"""Ensure the ContentMixin interface is as expected."""
self.assertRaises(NotImplementedError, ContentMixin().determine_content, None)
def test_standard_content_mixin_interface(self):
"""Ensure the OverloadedContentMixin interface is as expected."""
self.assertTrue(issubclass(StandardContentMixin, ContentMixin))
getattr(StandardContentMixin, 'determine_content')
def test_overloaded_content_mixin_interface(self):
"""Ensure the OverloadedContentMixin interface is as expected."""
self.assertTrue(issubclass(OverloadedContentMixin, ContentMixin))
getattr(OverloadedContentMixin, 'CONTENT_PARAM')
getattr(OverloadedContentMixin, 'CONTENTTYPE_PARAM')
getattr(OverloadedContentMixin, 'determine_content')
# Common functionality to test with both StandardContentMixin and OverloadedContentMixin
def ensure_determines_no_content_GET(self, mixin):
"""Ensure determine_content(request) returns None for GET request with no content."""
request = self.req.get('/')
self.assertEqual(mixin.determine_content(request), None)
def ensure_determines_form_content_POST(self, mixin):
"""Ensure determine_content(request) returns content for POST request with content."""
form_data = {'qwerty': 'uiop'}
request = self.req.post('/', data=form_data)
self.assertEqual(mixin.determine_content(request), (request.META['CONTENT_TYPE'], request.raw_post_data))
def ensure_determines_non_form_content_POST(self, mixin):
"""Ensure determine_content(request) returns (content type, content) for POST request with content."""
content = 'qwerty'
content_type = 'text/plain'
request = self.req.post('/', content, content_type=content_type)
self.assertEqual(mixin.determine_content(request), (content_type, content))
def ensure_determines_form_content_PUT(self, mixin):
"""Ensure determine_content(request) returns content for PUT request with content."""
form_data = {'qwerty': 'uiop'}
request = self.req.put('/', data=form_data)
self.assertEqual(mixin.determine_content(request), (request.META['CONTENT_TYPE'], request.raw_post_data))
def ensure_determines_non_form_content_PUT(self, mixin):
"""Ensure determine_content(request) returns (content type, content) for PUT request with content."""
content = 'qwerty'
content_type = 'text/plain'
request = self.req.put('/', content, content_type=content_type)
self.assertEqual(mixin.determine_content(request), (content_type, content))
# StandardContentMixin behavioural tests
def test_standard_behaviour_determines_no_content_GET(self):
"""Ensure StandardContentMixin.determine_content(request) returns None for GET request with no content."""
self.ensure_determines_no_content_GET(StandardContentMixin())
def test_standard_behaviour_determines_form_content_POST(self):
"""Ensure StandardContentMixin.determine_content(request) returns content for POST request with content."""
self.ensure_determines_form_content_POST(StandardContentMixin())
def test_standard_behaviour_determines_non_form_content_POST(self):
"""Ensure StandardContentMixin.determine_content(request) returns (content type, content) for POST request with content."""
self.ensure_determines_non_form_content_POST(StandardContentMixin())
def test_standard_behaviour_determines_form_content_PUT(self):
"""Ensure StandardContentMixin.determine_content(request) returns content for PUT request with content."""
self.ensure_determines_form_content_PUT(StandardContentMixin())
def test_standard_behaviour_determines_non_form_content_PUT(self):
"""Ensure StandardContentMixin.determine_content(request) returns (content type, content) for PUT request with content."""
self.ensure_determines_non_form_content_PUT(StandardContentMixin())
# OverloadedContentMixin behavioural tests
def test_overloaded_behaviour_determines_no_content_GET(self):
"""Ensure StandardContentMixin.determine_content(request) returns None for GET request with no content."""
self.ensure_determines_no_content_GET(OverloadedContentMixin())
def test_overloaded_behaviour_determines_form_content_POST(self):
"""Ensure StandardContentMixin.determine_content(request) returns content for POST request with content."""
self.ensure_determines_form_content_POST(OverloadedContentMixin())
def test_overloaded_behaviour_determines_non_form_content_POST(self):
"""Ensure StandardContentMixin.determine_content(request) returns (content type, content) for POST request with content."""
self.ensure_determines_non_form_content_POST(OverloadedContentMixin())
def test_overloaded_behaviour_determines_form_content_PUT(self):
"""Ensure StandardContentMixin.determine_content(request) returns content for PUT request with content."""
self.ensure_determines_form_content_PUT(OverloadedContentMixin())
def test_overloaded_behaviour_determines_non_form_content_PUT(self):
"""Ensure StandardContentMixin.determine_content(request) returns (content type, content) for PUT request with content."""
self.ensure_determines_non_form_content_PUT(OverloadedContentMixin())
def test_overloaded_behaviour_allows_content_tunnelling(self):
"""Ensure determine_content(request) returns (content type, content) for overloaded POST request"""
content = 'qwerty'
content_type = 'text/plain'
form_data = {OverloadedContentMixin.CONTENT_PARAM: content,
OverloadedContentMixin.CONTENTTYPE_PARAM: content_type}
request = self.req.post('/', form_data)
self.assertEqual(OverloadedContentMixin().determine_content(request), (content_type, content))
def test_overloaded_behaviour_allows_content_tunnelling_content_type_not_set(self):
"""Ensure determine_content(request) returns (None, content) for overloaded POST request with content type not set"""
content = 'qwerty'
request = self.req.post('/', {OverloadedContentMixin.CONTENT_PARAM: content})
self.assertEqual(OverloadedContentMixin().determine_content(request), (None, content))
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