summaryrefslogtreecommitdiff
path: root/tests/test_declarations.py
blob: 4c08dfa4a57701623af524e31e3414dc120f3c70 (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
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
# -*- coding: utf-8 -*-
# Copyright (c) 2010 Mark Sandstrom
# Copyright (c) 2011-2013 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 datetime
import itertools
import warnings

from factory import declarations
from factory import helpers

from .compat import mock, unittest
from . import tools


class OrderedDeclarationTestCase(unittest.TestCase):
    def test_errors(self):
        decl = declarations.OrderedDeclaration()
        self.assertRaises(NotImplementedError, decl.evaluate, None, {}, False)


class DigTestCase(unittest.TestCase):
    class MyObj(object):
        def __init__(self, n):
            self.n = n

    def test_chaining(self):
        obj = self.MyObj(1)
        obj.a = self.MyObj(2)
        obj.a.b = self.MyObj(3)
        obj.a.b.c = self.MyObj(4)

        self.assertEqual(2, declarations.deepgetattr(obj, 'a').n)
        self.assertRaises(AttributeError, declarations.deepgetattr, obj, 'b')
        self.assertEqual(2, declarations.deepgetattr(obj, 'a.n'))
        self.assertEqual(3, declarations.deepgetattr(obj, 'a.c', 3))
        self.assertRaises(AttributeError, declarations.deepgetattr, obj, 'a.c.n')
        self.assertRaises(AttributeError, declarations.deepgetattr, obj, 'a.d')
        self.assertEqual(3, declarations.deepgetattr(obj, 'a.b').n)
        self.assertEqual(3, declarations.deepgetattr(obj, 'a.b.n'))
        self.assertEqual(4, declarations.deepgetattr(obj, 'a.b.c').n)
        self.assertEqual(4, declarations.deepgetattr(obj, 'a.b.c.n'))
        self.assertEqual(42, declarations.deepgetattr(obj, 'a.b.c.n.x', 42))


class SelfAttributeTestCase(unittest.TestCase):
    def test_standard(self):
        a = declarations.SelfAttribute('foo.bar.baz')
        self.assertEqual(0, a.depth)
        self.assertEqual('foo.bar.baz', a.attribute_name)
        self.assertEqual(declarations._UNSPECIFIED, a.default)

    def test_dot(self):
        a = declarations.SelfAttribute('.bar.baz')
        self.assertEqual(1, a.depth)
        self.assertEqual('bar.baz', a.attribute_name)
        self.assertEqual(declarations._UNSPECIFIED, a.default)

    def test_default(self):
        a = declarations.SelfAttribute('bar.baz', 42)
        self.assertEqual(0, a.depth)
        self.assertEqual('bar.baz', a.attribute_name)
        self.assertEqual(42, a.default)

    def test_parent(self):
        a = declarations.SelfAttribute('..bar.baz')
        self.assertEqual(2, a.depth)
        self.assertEqual('bar.baz', a.attribute_name)
        self.assertEqual(declarations._UNSPECIFIED, a.default)

    def test_grandparent(self):
        a = declarations.SelfAttribute('...bar.baz')
        self.assertEqual(3, a.depth)
        self.assertEqual('bar.baz', a.attribute_name)
        self.assertEqual(declarations._UNSPECIFIED, a.default)


class IteratorTestCase(unittest.TestCase):
    def test_cycle(self):
        it = declarations.Iterator([1, 2])
        self.assertEqual(1, it.evaluate(0, None, False))
        self.assertEqual(2, it.evaluate(1, None, False))
        self.assertEqual(1, it.evaluate(2, None, False))
        self.assertEqual(2, it.evaluate(3, None, False))

    def test_no_cycling(self):
        it = declarations.Iterator([1, 2], cycle=False)
        self.assertEqual(1, it.evaluate(0, None, False))
        self.assertEqual(2, it.evaluate(1, None, False))
        self.assertRaises(StopIteration, it.evaluate, 2, None, False)

    def test_getter(self):
        it = declarations.Iterator([(1, 2), (1, 3)], getter=lambda p: p[1])
        self.assertEqual(2, it.evaluate(0, None, False))
        self.assertEqual(3, it.evaluate(1, None, False))
        self.assertEqual(2, it.evaluate(2, None, False))
        self.assertEqual(3, it.evaluate(3, None, False))


class PostGenerationDeclarationTestCase(unittest.TestCase):
    def test_extract_no_prefix(self):
        decl = declarations.PostGenerationDeclaration()

        extracted, kwargs = decl.extract('foo', {'foo': 13, 'foo__bar': 42})
        self.assertEqual(extracted, 13)
        self.assertEqual(kwargs, {'bar': 42})

    def test_decorator_simple(self):
        call_params = []
        @helpers.post_generation
        def foo(*args, **kwargs):
            call_params.append(args)
            call_params.append(kwargs)

        extracted, kwargs = foo.extract('foo',
            {'foo': 13, 'foo__bar': 42, 'blah': 42, 'blah__baz': 1})
        self.assertEqual(13, extracted)
        self.assertEqual({'bar': 42}, kwargs)

        # No value returned.
        foo.call(None, False, extracted, **kwargs)
        self.assertEqual(2, len(call_params))
        self.assertEqual((None, False, 13), call_params[0])
        self.assertEqual({'bar': 42}, call_params[1])


class SubFactoryTestCase(unittest.TestCase):

    def test_arg(self):
        self.assertRaises(ValueError, declarations.SubFactory, 'UnqualifiedSymbol')

    def test_lazyness(self):
        f = declarations.SubFactory('factory.declarations.Sequence', x=3)
        self.assertEqual(None, f.factory)

        self.assertEqual({'x': 3}, f.defaults)

        factory_class = f.get_factory()
        self.assertEqual(declarations.Sequence, factory_class)

    def test_cache(self):
        orig_date = datetime.date
        f = declarations.SubFactory('datetime.date')
        self.assertEqual(None, f.factory)

        factory_class = f.get_factory()
        self.assertEqual(orig_date, factory_class)

        try:
            # Modify original value
            datetime.date = None
            # Repeat import
            factory_class = f.get_factory()
            self.assertEqual(orig_date, factory_class)

        finally:
            # IMPORTANT: restore attribute.
            datetime.date = orig_date


class RelatedFactoryTestCase(unittest.TestCase):

    def test_arg(self):
        self.assertRaises(ValueError, declarations.RelatedFactory, 'UnqualifiedSymbol')

    def test_lazyness(self):
        f = declarations.RelatedFactory('factory.declarations.Sequence', x=3)
        self.assertEqual(None, f.factory)

        self.assertEqual({'x': 3}, f.defaults)

        factory_class = f.get_factory()
        self.assertEqual(declarations.Sequence, factory_class)

    def test_cache(self):
        """Ensure that RelatedFactory tries to import only once."""
        orig_date = datetime.date
        f = declarations.RelatedFactory('datetime.date')
        self.assertEqual(None, f.factory)

        factory_class = f.get_factory()
        self.assertEqual(orig_date, factory_class)

        try:
            # Modify original value
            datetime.date = None
            # Repeat import
            factory_class = f.get_factory()
            self.assertEqual(orig_date, factory_class)

        finally:
            # IMPORTANT: restore attribute.
            datetime.date = orig_date


class PostGenerationMethodCallTestCase(unittest.TestCase):
    def setUp(self):
        self.obj = mock.MagicMock()

    def test_simplest_setup_and_call(self):
        decl = declarations.PostGenerationMethodCall('method')
        decl.call(self.obj, False)
        self.obj.method.assert_called_once_with()

    def test_call_with_method_args(self):
        decl = declarations.PostGenerationMethodCall(
                'method', 'data')
        decl.call(self.obj, False)
        self.obj.method.assert_called_once_with('data')

    def test_call_with_passed_extracted_string(self):
        decl = declarations.PostGenerationMethodCall(
                'method')
        decl.call(self.obj, False, 'data')
        self.obj.method.assert_called_once_with('data')

    def test_call_with_passed_extracted_int(self):
        decl = declarations.PostGenerationMethodCall('method')
        decl.call(self.obj, False, 1)
        self.obj.method.assert_called_once_with(1)

    def test_call_with_passed_extracted_iterable(self):
        decl = declarations.PostGenerationMethodCall('method')
        decl.call(self.obj, False, (1, 2, 3))
        self.obj.method.assert_called_once_with((1, 2, 3))

    def test_call_with_method_kwargs(self):
        decl = declarations.PostGenerationMethodCall(
                'method', data='data')
        decl.call(self.obj, False)
        self.obj.method.assert_called_once_with(data='data')

    def test_call_with_passed_kwargs(self):
        decl = declarations.PostGenerationMethodCall('method')
        decl.call(self.obj, False, data='other')
        self.obj.method.assert_called_once_with(data='other')

    def test_multi_call_with_multi_method_args(self):
        decl = declarations.PostGenerationMethodCall(
                'method', 'arg1', 'arg2')
        decl.call(self.obj, False)
        self.obj.method.assert_called_once_with('arg1', 'arg2')

    def test_multi_call_with_passed_multiple_args(self):
        decl = declarations.PostGenerationMethodCall(
                'method', 'arg1', 'arg2')
        decl.call(self.obj, False, ('param1', 'param2', 'param3'))
        self.obj.method.assert_called_once_with('param1', 'param2', 'param3')

    def test_multi_call_with_passed_tuple(self):
        decl = declarations.PostGenerationMethodCall(
                'method', 'arg1', 'arg2')
        decl.call(self.obj, False, (('param1', 'param2'),))
        self.obj.method.assert_called_once_with(('param1', 'param2'))

    def test_multi_call_with_kwargs(self):
        decl = declarations.PostGenerationMethodCall(
                'method', 'arg1', 'arg2')
        decl.call(self.obj, False, x=2)
        self.obj.method.assert_called_once_with('arg1', 'arg2', x=2)



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