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
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
|
from unittest import mock
from django.http import HttpRequest
from django.template import (
Context, Engine, RequestContext, Template, Variable, VariableDoesNotExist,
)
from django.template.context import RenderContext
from django.test import RequestFactory, SimpleTestCase
class ContextTests(SimpleTestCase):
def test_context(self):
c = Context({"a": 1, "b": "xyzzy"})
self.assertEqual(c["a"], 1)
self.assertEqual(c.push(), {})
c["a"] = 2
self.assertEqual(c["a"], 2)
self.assertEqual(c.get("a"), 2)
self.assertEqual(c.pop(), {"a": 2})
self.assertEqual(c["a"], 1)
self.assertEqual(c.get("foo", 42), 42)
self.assertEqual(c, mock.ANY)
def test_push_context_manager(self):
c = Context({"a": 1})
with c.push():
c['a'] = 2
self.assertEqual(c['a'], 2)
self.assertEqual(c['a'], 1)
with c.push(a=3):
self.assertEqual(c['a'], 3)
self.assertEqual(c['a'], 1)
def test_update_context_manager(self):
c = Context({"a": 1})
with c.update({}):
c['a'] = 2
self.assertEqual(c['a'], 2)
self.assertEqual(c['a'], 1)
with c.update({'a': 3}):
self.assertEqual(c['a'], 3)
self.assertEqual(c['a'], 1)
def test_push_context_manager_with_context_object(self):
c = Context({'a': 1})
with c.push(Context({'a': 3})):
self.assertEqual(c['a'], 3)
self.assertEqual(c['a'], 1)
def test_update_context_manager_with_context_object(self):
c = Context({'a': 1})
with c.update(Context({'a': 3})):
self.assertEqual(c['a'], 3)
self.assertEqual(c['a'], 1)
def test_push_proper_layering(self):
c = Context({'a': 1})
c.push(Context({'b': 2}))
c.push(Context({'c': 3, 'd': {'z': '26'}}))
self.assertEqual(
c.dicts,
[
{'False': False, 'None': None, 'True': True},
{'a': 1},
{'b': 2},
{'c': 3, 'd': {'z': '26'}},
]
)
def test_update_proper_layering(self):
c = Context({'a': 1})
c.update(Context({'b': 2}))
c.update(Context({'c': 3, 'd': {'z': '26'}}))
self.assertEqual(
c.dicts,
[
{'False': False, 'None': None, 'True': True},
{'a': 1},
{'b': 2},
{'c': 3, 'd': {'z': '26'}},
]
)
def test_setdefault(self):
c = Context()
x = c.setdefault('x', 42)
self.assertEqual(x, 42)
self.assertEqual(c['x'], 42)
x = c.setdefault('x', 100)
self.assertEqual(x, 42)
self.assertEqual(c['x'], 42)
def test_resolve_on_context_method(self):
"""
#17778 -- Variable shouldn't resolve RequestContext methods
"""
empty_context = Context()
with self.assertRaises(VariableDoesNotExist):
Variable('no_such_variable').resolve(empty_context)
with self.assertRaises(VariableDoesNotExist):
Variable('new').resolve(empty_context)
self.assertEqual(
Variable('new').resolve(Context({'new': 'foo'})),
'foo',
)
def test_render_context(self):
test_context = RenderContext({'fruit': 'papaya'})
# push() limits access to the topmost dict
test_context.push()
test_context['vegetable'] = 'artichoke'
self.assertEqual(list(test_context), ['vegetable'])
self.assertNotIn('fruit', test_context)
with self.assertRaises(KeyError):
test_context['fruit']
self.assertIsNone(test_context.get('fruit'))
def test_flatten_context(self):
a = Context()
a.update({'a': 2})
a.update({'b': 4})
a.update({'c': 8})
self.assertEqual(a.flatten(), {
'False': False, 'None': None, 'True': True,
'a': 2, 'b': 4, 'c': 8
})
def test_flatten_context_with_context(self):
"""
Context.push() with a Context argument should work.
"""
a = Context({'a': 2})
a.push(Context({'z': '8'}))
self.assertEqual(a.flatten(), {
'False': False,
'None': None,
'True': True,
'a': 2,
'z': '8',
})
def test_context_comparable(self):
"""
#21765 -- equality comparison should work
"""
test_data = {'x': 'y', 'v': 'z', 'd': {'o': object, 'a': 'b'}}
self.assertEqual(Context(test_data), Context(test_data))
a = Context()
b = Context()
self.assertEqual(a, b)
# update only a
a.update({'a': 1})
self.assertNotEqual(a, b)
# update both to check regression
a.update({'c': 3})
b.update({'c': 3})
self.assertNotEqual(a, b)
# make contexts equals again
b.update({'a': 1})
self.assertEqual(a, b)
def test_copy_request_context_twice(self):
"""
#24273 -- Copy twice shouldn't raise an exception
"""
RequestContext(HttpRequest()).new().new()
def test_set_upward(self):
c = Context({'a': 1})
c.set_upward('a', 2)
self.assertEqual(c.get('a'), 2)
def test_set_upward_empty_context(self):
empty_context = Context()
empty_context.set_upward('a', 1)
self.assertEqual(empty_context.get('a'), 1)
def test_set_upward_with_push(self):
"""
The highest context which has the given key is used.
"""
c = Context({'a': 1})
c.push({'a': 2})
c.set_upward('a', 3)
self.assertEqual(c.get('a'), 3)
c.pop()
self.assertEqual(c.get('a'), 1)
def test_set_upward_with_push_no_match(self):
"""
The highest context is used if the given key isn't found.
"""
c = Context({'b': 1})
c.push({'b': 2})
c.set_upward('a', 2)
self.assertEqual(len(c.dicts), 3)
self.assertEqual(c.dicts[-1]['a'], 2)
class RequestContextTests(SimpleTestCase):
request_factory = RequestFactory()
def test_include_only(self):
"""
#15721 -- ``{% include %}`` and ``RequestContext`` should work
together.
"""
engine = Engine(loaders=[
('django.template.loaders.locmem.Loader', {
'child': '{{ var|default:"none" }}',
}),
])
request = self.request_factory.get('/')
ctx = RequestContext(request, {'var': 'parent'})
self.assertEqual(engine.from_string('{% include "child" %}').render(ctx), 'parent')
self.assertEqual(engine.from_string('{% include "child" only %}').render(ctx), 'none')
def test_stack_size(self):
"""Optimized RequestContext construction (#7116)."""
request = self.request_factory.get('/')
ctx = RequestContext(request, {})
# The stack contains 4 items:
# [builtins, supplied context, context processor, empty dict]
self.assertEqual(len(ctx.dicts), 4)
def test_context_comparable(self):
# Create an engine without any context processors.
test_data = {'x': 'y', 'v': 'z', 'd': {'o': object, 'a': 'b'}}
# test comparing RequestContext to prevent problems if somebody
# adds __eq__ in the future
request = self.request_factory.get('/')
self.assertEqual(
RequestContext(request, dict_=test_data),
RequestContext(request, dict_=test_data),
)
def test_modify_context_and_render(self):
template = Template('{{ foo }}')
request = self.request_factory.get('/')
context = RequestContext(request, {})
context['foo'] = 'foo'
self.assertEqual(template.render(context), 'foo')
|
