aboutsummaryrefslogtreecommitdiff
path: root/tests/test_base.py
blob: 8da655e529903ea340db9e02a76ae3454237166f (plain)
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
# -*- coding: utf-8 -*-
# Copyright (c) 2010 Mark Sandstrom
# Copyright (c) 2011 Raphaël Barrois
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.

import unittest
import warnings

from factory import base
from factory import declarations

class TestObject(object):
    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(object):
    class FakeDjangoManager(object):
        def create(self, **kwargs):
            fake_model = FakeDjangoModel(**kwargs)
            fake_model.id = 1
            return fake_model

    objects = FakeDjangoManager()

    def __init__(self, **kwargs):
        for name, value in kwargs.iteritems():
            setattr(self, name, value)
            self.id = None

class TestModel(FakeDjangoModel):
    pass


class SafetyTestCase(unittest.TestCase):
    def testBaseFactory(self):
        self.assertRaises(RuntimeError, base.BaseFactory)


class FactoryTestCase(unittest.TestCase):
    def testDisplay(self):
        class TestObjectFactory(base.Factory):
            FACTORY_FOR = FakeDjangoModel

        self.assertIn('TestObjectFactory', str(TestObjectFactory))
        self.assertIn('FakeDjangoModel', str(TestObjectFactory))

    def testLazyAttributeNonExistentParam(self):
        class TestObjectFactory(base.Factory):
            one = declarations.LazyAttribute(lambda a: a.does_not_exist )

        self.assertRaises(AttributeError, TestObjectFactory)

    def testInheritanceWithSequence(self):
        """Tests that sequence IDs are shared between parent and son."""
        class TestObjectFactory(base.Factory):
            one = declarations.Sequence(lambda a: a)

        class TestSubFactory(TestObjectFactory):
            pass

        parent = TestObjectFactory.build()
        sub = TestSubFactory.build()
        alt_parent = TestObjectFactory.build()
        alt_sub = TestSubFactory.build()
        ones = set([x.one for x in (parent, alt_parent, sub, alt_sub)])
        self.assertEqual(4, len(ones))

class FactoryDefaultStrategyTestCase(unittest.TestCase):
    def setUp(self):
        self.default_strategy = base.Factory.default_strategy

    def tearDown(self):
        base.Factory.default_strategy = self.default_strategy

    def testBuildStrategy(self):
        base.Factory.default_strategy = base.BUILD_STRATEGY

        class TestModelFactory(base.Factory):
            one = 'one'

        test_model = TestModelFactory()
        self.assertEqual(test_model.one, 'one')
        self.assertFalse(test_model.id)

    def testCreateStrategy(self):
        # Default default_strategy

        class TestModelFactory(base.Factory):
            one = 'one'

        test_model = TestModelFactory()
        self.assertEqual(test_model.one, 'one')
        self.assertTrue(test_model.id)

    def testStubStrategy(self):
        base.Factory.default_strategy = base.STUB_STRATEGY

        class TestModelFactory(base.Factory):
            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 testUnknownStrategy(self):
        base.Factory.default_strategy = 'unknown'

        class TestModelFactory(base.Factory):
            one = 'one'

        self.assertRaises(base.Factory.UnknownStrategy, TestModelFactory)

    def testStubWithNonStubStrategy(self):
        class TestModelFactory(base.StubFactory):
            one = 'one'

        TestModelFactory.default_strategy = base.CREATE_STRATEGY

        self.assertRaises(base.StubFactory.UnsupportedStrategy, TestModelFactory)

        TestModelFactory.default_strategy = base.BUILD_STRATEGY
        self.assertRaises(base.StubFactory.UnsupportedStrategy, TestModelFactory)

class FactoryCreationTestCase(unittest.TestCase):
    def testFactoryFor(self):
        class TestFactory(base.Factory):
            FACTORY_FOR = TestObject

        self.assertTrue(isinstance(TestFactory.build(), TestObject))

    def testAutomaticAssociatedClassDiscovery(self):
        class TestObjectFactory(base.Factory):
            pass

        self.assertTrue(isinstance(TestObjectFactory.build(), TestObject))

    def testDeprecationWarning(self):
        """Make sure the 'auto-discovery' deprecation warning is issued."""

        with warnings.catch_warnings(record=True) as w:
            # Clear the warning registry.
            if hasattr(base, '__warningregistry__'):
                base.__warningregistry__.clear()

            warnings.simplefilter('always')
            class TestObjectFactory(base.Factory):
                pass

            self.assertEqual(1, len(w))
            self.assertIn('deprecated', str(w[0].message))

    def testStub(self):
        class TestFactory(base.StubFactory):
            pass

        self.assertEqual(TestFactory.default_strategy, base.STUB_STRATEGY)

    def testInheritanceWithStub(self):
        class TestObjectFactory(base.StubFactory):
            pass

        class TestFactory(TestObjectFactory):
            pass

        self.assertEqual(TestFactory.default_strategy, base.STUB_STRATEGY)

    def testCustomCreation(self):
        class TestModelFactory(base.Factory):
            @classmethod
            def _prepare(cls, create, **kwargs):
                kwargs['four'] = 4
                return super(TestModelFactory, cls)._prepare(create, **kwargs)

        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 testNoAssociatedClassWithAutodiscovery(self):
        try:
            class TestFactory(base.Factory):
                pass
            self.fail()
        except base.Factory.AssociatedClassError as e:
            self.assertTrue('autodiscovery' in str(e))

    def testNoAssociatedClassWithoutAutodiscovery(self):
        try:
            class Test(base.Factory):
                pass
            self.fail()
        except base.Factory.AssociatedClassError as e:
            self.assertTrue('autodiscovery' not in str(e))


if __name__ == '__main__':
    unittest.main()