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
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
|
# Copyright: See the LICENSE file.
import unittest
from factory import base, declarations, enums, errors
class TestObject:
def __init__(self, one=None, two=None, three=None, four=None):
self.one = one
self.two = two
self.three = three
self.four = four
class FakeDjangoModel:
@classmethod
def create(cls, **kwargs):
instance = cls(**kwargs)
instance.id = 1
return instance
def __init__(self, **kwargs):
for name, value in kwargs.items():
setattr(self, name, value)
self.id = None
class FakeModelFactory(base.Factory):
class Meta:
abstract = True
@classmethod
def _create(cls, model_class, *args, **kwargs):
return model_class.create(**kwargs)
class TestModel(FakeDjangoModel):
pass
class SafetyTestCase(unittest.TestCase):
def test_base_factory(self):
with self.assertRaises(errors.FactoryError):
base.BaseFactory()
class AbstractFactoryTestCase(unittest.TestCase):
def test_factory_for_optional(self):
"""Ensure that model= is optional for abstract=True."""
class TestObjectFactory(base.Factory):
class Meta:
abstract = True
self.assertTrue(TestObjectFactory._meta.abstract)
self.assertIsNone(TestObjectFactory._meta.model)
def test_factory_for_and_abstract_factory_optional(self):
"""Ensure that Meta.abstract is optional."""
class TestObjectFactory(base.Factory):
pass
self.assertTrue(TestObjectFactory._meta.abstract)
self.assertIsNone(TestObjectFactory._meta.model)
def test_abstract_factory_cannot_be_called(self):
class TestObjectFactory(base.Factory):
pass
with self.assertRaises(errors.FactoryError):
TestObjectFactory.build()
with self.assertRaises(errors.FactoryError):
TestObjectFactory.create()
def test_abstract_factory_not_inherited(self):
"""abstract=True isn't propagated to child classes."""
class TestObjectFactory(base.Factory):
class Meta:
abstract = True
model = TestObject
class TestObjectChildFactory(TestObjectFactory):
pass
self.assertFalse(TestObjectChildFactory._meta.abstract)
def test_abstract_or_model_is_required(self):
class TestObjectFactory(base.Factory):
class Meta:
abstract = False
model = None
with self.assertRaises(errors.FactoryError):
TestObjectFactory.build()
with self.assertRaises(errors.FactoryError):
TestObjectFactory.create()
class OptionsTests(unittest.TestCase):
def test_base_attrs(self):
class AbstractFactory(base.Factory):
pass
# Declarative attributes
self.assertTrue(AbstractFactory._meta.abstract)
self.assertIsNone(AbstractFactory._meta.model)
self.assertEqual((), AbstractFactory._meta.inline_args)
self.assertEqual((), AbstractFactory._meta.exclude)
self.assertEqual(enums.CREATE_STRATEGY, AbstractFactory._meta.strategy)
# Non-declarative attributes
self.assertEqual({}, AbstractFactory._meta.pre_declarations.as_dict())
self.assertEqual({}, AbstractFactory._meta.post_declarations.as_dict())
self.assertEqual(AbstractFactory, AbstractFactory._meta.factory)
self.assertEqual(base.Factory, AbstractFactory._meta.base_factory)
self.assertEqual(AbstractFactory._meta, AbstractFactory._meta.counter_reference)
def test_declaration_collecting(self):
lazy = declarations.LazyFunction(int)
lazy2 = declarations.LazyAttribute(lambda _o: 1)
postgen = declarations.PostGenerationDeclaration()
class AbstractFactory(base.Factory):
x = 1
y = lazy
y2 = lazy2
z = postgen
# Declarations aren't removed
self.assertEqual(1, AbstractFactory.x)
self.assertEqual(lazy, AbstractFactory.y)
self.assertEqual(lazy2, AbstractFactory.y2)
self.assertEqual(postgen, AbstractFactory.z)
# And are available in class Meta
self.assertEqual(
{'x': 1, 'y': lazy, 'y2': lazy2},
AbstractFactory._meta.pre_declarations.as_dict(),
)
self.assertEqual(
{'z': postgen},
AbstractFactory._meta.post_declarations.as_dict(),
)
def test_inherited_declaration_collecting(self):
lazy = declarations.LazyFunction(int)
lazy2 = declarations.LazyAttribute(lambda _o: 2)
postgen = declarations.PostGenerationDeclaration()
postgen2 = declarations.PostGenerationDeclaration()
class AbstractFactory(base.Factory):
x = 1
y = lazy
z = postgen
class OtherFactory(AbstractFactory):
a = lazy2
b = postgen2
# Declarations aren't removed
self.assertEqual(lazy2, OtherFactory.a)
self.assertEqual(postgen2, OtherFactory.b)
self.assertEqual(1, OtherFactory.x)
self.assertEqual(lazy, OtherFactory.y)
self.assertEqual(postgen, OtherFactory.z)
# And are available in class Meta
self.assertEqual(
{'x': 1, 'y': lazy, 'a': lazy2},
OtherFactory._meta.pre_declarations.as_dict(),
)
self.assertEqual(
{'z': postgen, 'b': postgen2},
OtherFactory._meta.post_declarations.as_dict(),
)
def test_inherited_declaration_shadowing(self):
lazy = declarations.LazyFunction(int)
lazy2 = declarations.LazyAttribute(lambda _o: 2)
postgen = declarations.PostGenerationDeclaration()
postgen2 = declarations.PostGenerationDeclaration()
class AbstractFactory(base.Factory):
x = 1
y = lazy
z = postgen
class OtherFactory(AbstractFactory):
y = lazy2
z = postgen2
# Declarations aren't removed
self.assertEqual(1, OtherFactory.x)
self.assertEqual(lazy2, OtherFactory.y)
self.assertEqual(postgen2, OtherFactory.z)
# And are available in class Meta
self.assertEqual(
{'x': 1, 'y': lazy2},
OtherFactory._meta.pre_declarations.as_dict(),
)
self.assertEqual(
{'z': postgen2},
OtherFactory._meta.post_declarations.as_dict(),
)
def test_factory_as_meta_model_raises_exception(self):
class FirstFactory(base.Factory):
pass
class Meta:
model = FirstFactory
with self.assertRaises(TypeError):
type("SecondFactory", (base.Factory,), {"Meta": Meta})
class DeclarationParsingTests(unittest.TestCase):
def test_classmethod(self):
class TestObjectFactory(base.Factory):
class Meta:
model = TestObject
@classmethod
def some_classmethod(cls):
return cls.create()
self.assertTrue(hasattr(TestObjectFactory, 'some_classmethod'))
obj = TestObjectFactory.some_classmethod()
self.assertEqual(TestObject, obj.__class__)
class FactoryTestCase(unittest.TestCase):
def test_magic_happens(self):
"""Calling a FooFactory doesn't yield a FooFactory instance."""
class TestObjectFactory(base.Factory):
class Meta:
model = TestObject
self.assertEqual(TestObject, TestObjectFactory._meta.model)
obj = TestObjectFactory.build()
self.assertFalse(hasattr(obj, '_meta'))
def test_display(self):
class TestObjectFactory(base.Factory):
class Meta:
model = FakeDjangoModel
self.assertIn('TestObjectFactory', str(TestObjectFactory))
self.assertIn('FakeDjangoModel', str(TestObjectFactory))
def test_lazy_attribute_non_existent_param(self):
class TestObjectFactory(base.Factory):
class Meta:
model = TestObject
one = declarations.LazyAttribute(lambda a: a.does_not_exist)
with self.assertRaises(AttributeError):
TestObjectFactory()
def test_inheritance_with_sequence(self):
"""Tests that sequence IDs are shared between parent and son."""
class TestObjectFactory(base.Factory):
class Meta:
model = TestObject
one = declarations.Sequence(lambda a: a)
class TestSubFactory(TestObjectFactory):
class Meta:
model = TestObject
pass
parent = TestObjectFactory.build()
sub = TestSubFactory.build()
alt_parent = TestObjectFactory.build()
alt_sub = TestSubFactory.build()
ones = {x.one for x in (parent, alt_parent, sub, alt_sub)}
self.assertEqual(4, len(ones))
class FactorySequenceTestCase(unittest.TestCase):
def setUp(self):
super().setUp()
class TestObjectFactory(base.Factory):
class Meta:
model = TestObject
one = declarations.Sequence(lambda n: n)
self.TestObjectFactory = TestObjectFactory
def test_reset_sequence(self):
o1 = self.TestObjectFactory()
self.assertEqual(0, o1.one)
o2 = self.TestObjectFactory()
self.assertEqual(1, o2.one)
self.TestObjectFactory.reset_sequence()
o3 = self.TestObjectFactory()
self.assertEqual(0, o3.one)
def test_reset_sequence_with_value(self):
o1 = self.TestObjectFactory()
self.assertEqual(0, o1.one)
o2 = self.TestObjectFactory()
self.assertEqual(1, o2.one)
self.TestObjectFactory.reset_sequence(42)
o3 = self.TestObjectFactory()
self.assertEqual(42, o3.one)
def test_reset_sequence_subclass_fails(self):
"""Tests that the sequence of a 'slave' factory cannot be reset."""
class SubTestObjectFactory(self.TestObjectFactory):
pass
with self.assertRaises(ValueError):
SubTestObjectFactory.reset_sequence()
def test_reset_sequence_subclass_force(self):
"""Tests that reset_sequence(force=True) works."""
class SubTestObjectFactory(self.TestObjectFactory):
pass
o1 = SubTestObjectFactory()
self.assertEqual(0, o1.one)
o2 = SubTestObjectFactory()
self.assertEqual(1, o2.one)
SubTestObjectFactory.reset_sequence(force=True)
o3 = SubTestObjectFactory()
self.assertEqual(0, o3.one)
# The master sequence counter has been reset
o4 = self.TestObjectFactory()
self.assertEqual(1, o4.one)
def test_reset_sequence_subclass_parent(self):
"""Tests that the sequence of a 'slave' factory cannot be reset."""
class SubTestObjectFactory(self.TestObjectFactory):
pass
o1 = SubTestObjectFactory()
self.assertEqual(0, o1.one)
o2 = SubTestObjectFactory()
self.assertEqual(1, o2.one)
self.TestObjectFactory.reset_sequence()
o3 = SubTestObjectFactory()
self.assertEqual(0, o3.one)
o4 = self.TestObjectFactory()
self.assertEqual(1, o4.one)
class FactoryDefaultStrategyTestCase(unittest.TestCase):
def test_build_strategy(self):
class TestModelFactory(base.Factory):
class Meta:
model = TestModel
strategy = enums.BUILD_STRATEGY
one = 'one'
test_model = TestModelFactory()
self.assertEqual(test_model.one, 'one')
self.assertFalse(test_model.id)
def test_create_strategy(self):
# Default Meta.strategy
class TestModelFactory(FakeModelFactory):
class Meta:
model = TestModel
one = 'one'
test_model = TestModelFactory()
self.assertEqual(test_model.one, 'one')
self.assertTrue(test_model.id)
def test_stub_strategy(self):
class TestModelFactory(base.Factory):
class Meta:
model = TestModel
strategy = enums.STUB_STRATEGY
one = 'one'
test_model = TestModelFactory()
self.assertEqual(test_model.one, 'one')
self.assertFalse(hasattr(test_model, 'id')) # We should have a plain old object
def test_unknown_strategy(self):
class TestModelFactory(base.Factory):
class Meta:
model = TestModel
strategy = 'unknown'
one = 'one'
with self.assertRaises(base.Factory.UnknownStrategy):
TestModelFactory()
def test_stub_with_create_strategy(self):
class TestModelFactory(base.StubFactory):
class Meta:
model = TestModel
strategy = enums.CREATE_STRATEGY
one = 'one'
with self.assertRaises(base.StubFactory.UnsupportedStrategy):
TestModelFactory()
def test_stub_with_build_strategy(self):
class TestModelFactory(base.StubFactory):
class Meta:
model = TestModel
strategy = enums.BUILD_STRATEGY
one = 'one'
obj = TestModelFactory()
# For stubs, build() is an alias of stub().
self.assertFalse(isinstance(obj, TestModel))
def test_change_strategy(self):
class TestModelFactory(base.StubFactory):
class Meta:
model = TestModel
strategy = enums.CREATE_STRATEGY
one = 'one'
self.assertEqual(enums.CREATE_STRATEGY, TestModelFactory._meta.strategy)
class FactoryCreationTestCase(unittest.TestCase):
def test_factory_for(self):
class TestFactory(base.Factory):
class Meta:
model = TestObject
self.assertTrue(isinstance(TestFactory.build(), TestObject))
def test_stub(self):
class TestFactory(base.StubFactory):
pass
self.assertEqual(TestFactory._meta.strategy, enums.STUB_STRATEGY)
def test_inheritance_with_stub(self):
class TestObjectFactory(base.StubFactory):
class Meta:
model = TestObject
pass
class TestFactory(TestObjectFactory):
pass
self.assertEqual(TestFactory._meta.strategy, enums.STUB_STRATEGY)
def test_stub_and_subfactory(self):
class StubA(base.StubFactory):
class Meta:
model = TestObject
one = 'blah'
class StubB(base.StubFactory):
class Meta:
model = TestObject
stubbed = declarations.SubFactory(StubA, two='two')
b = StubB()
self.assertEqual('blah', b.stubbed.one)
self.assertEqual('two', b.stubbed.two)
def test_custom_creation(self):
class TestModelFactory(FakeModelFactory):
class Meta:
model = TestModel
@classmethod
def _generate(cls, create, attrs):
attrs['four'] = 4
return super()._generate(create, attrs)
b = TestModelFactory.build(one=1)
self.assertEqual(1, b.one)
self.assertEqual(4, b.four)
self.assertEqual(None, b.id)
c = TestModelFactory(one=1)
self.assertEqual(1, c.one)
self.assertEqual(4, c.four)
self.assertEqual(1, c.id)
# Errors
def test_no_associated_class(self):
class Test(base.Factory):
pass
self.assertTrue(Test._meta.abstract)
class PostGenerationParsingTestCase(unittest.TestCase):
def test_extraction(self):
class TestObjectFactory(base.Factory):
class Meta:
model = TestObject
foo = declarations.PostGenerationDeclaration()
self.assertIn('foo', TestObjectFactory._meta.post_declarations.as_dict())
def test_classlevel_extraction(self):
class TestObjectFactory(base.Factory):
class Meta:
model = TestObject
foo = declarations.PostGenerationDeclaration()
foo__bar = 42
self.assertIn('foo', TestObjectFactory._meta.post_declarations.as_dict())
self.assertIn('foo__bar', TestObjectFactory._meta.post_declarations.as_dict())
|
