1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
from django.http import HttpResponse
from django.template import engines
from django.template.response import TemplateResponse
from django.test import RequestFactory, SimpleTestCase
from django.utils.decorators import decorator_from_middleware
class ProcessViewMiddleware:
def __init__(self, get_response):
self.get_response = get_response
def process_view(self, request, view_func, view_args, view_kwargs):
pass
process_view_dec = decorator_from_middleware(ProcessViewMiddleware)
@process_view_dec
def process_view(request):
return HttpResponse()
class ClassProcessView:
def __call__(self, request):
return HttpResponse()
class_process_view = process_view_dec(ClassProcessView())
class FullMiddleware:
def __init__(self, get_response):
self.get_response = get_response
def process_request(self, request):
request.process_request_reached = True
def process_view(self, request, view_func, view_args, view_kwargs):
request.process_view_reached = True
def process_template_response(self, request, response):
request.process_template_response_reached = True
return response
def process_response(self, request, response):
# This should never receive unrendered content.
request.process_response_content = response.content
request.process_response_reached = True
return response
full_dec = decorator_from_middleware(FullMiddleware)
class DecoratorFromMiddlewareTests(SimpleTestCase):
"""
Tests for view decorators created using
``django.utils.decorators.decorator_from_middleware``.
"""
rf = RequestFactory()
def test_process_view_middleware(self):
"""
Test a middleware that implements process_view.
"""
process_view(self.rf.get("/"))
def test_callable_process_view_middleware(self):
"""
Test a middleware that implements process_view, operating on a callable class.
"""
class_process_view(self.rf.get("/"))
def test_full_dec_normal(self):
"""
All methods of middleware are called for normal HttpResponses
"""
@full_dec
def normal_view(request):
template = engines["django"].from_string("Hello world")
return HttpResponse(template.render())
request = self.rf.get("/")
normal_view(request)
self.assertTrue(getattr(request, "process_request_reached", False))
self.assertTrue(getattr(request, "process_view_reached", False))
# process_template_response must not be called for HttpResponse
self.assertFalse(getattr(request, "process_template_response_reached", False))
self.assertTrue(getattr(request, "process_response_reached", False))
def test_full_dec_templateresponse(self):
"""
All methods of middleware are called for TemplateResponses in
the right sequence.
"""
@full_dec
def template_response_view(request):
template = engines["django"].from_string("Hello world")
return TemplateResponse(request, template)
request = self.rf.get("/")
response = template_response_view(request)
self.assertTrue(getattr(request, "process_request_reached", False))
self.assertTrue(getattr(request, "process_view_reached", False))
self.assertTrue(getattr(request, "process_template_response_reached", False))
# response must not be rendered yet.
self.assertFalse(response._is_rendered)
# process_response must not be called until after response is rendered,
# otherwise some decorators like csrf_protect and gzip_page will not
# work correctly. See #16004
self.assertFalse(getattr(request, "process_response_reached", False))
response.render()
self.assertTrue(getattr(request, "process_response_reached", False))
# process_response saw the rendered content
self.assertEqual(request.process_response_content, b"Hello world")
|
