Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 1 | import copy |
Petter Strandmark | 47d9424 | 2018-10-28 21:37:10 +0100 | [diff] [blame] | 2 | import re |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 3 | import sys |
Robert Collins | ca647ef | 2015-07-24 03:48:20 +1200 | [diff] [blame] | 4 | import tempfile |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 5 | |
Serhiy Storchaka | 662db12 | 2019-08-08 08:42:54 +0300 | [diff] [blame] | 6 | from test.support import ALWAYS_EQ |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 7 | import unittest |
| 8 | from unittest.test.testmock.support import is_instance |
| 9 | from unittest import mock |
| 10 | from unittest.mock import ( |
| 11 | call, DEFAULT, patch, sentinel, |
| 12 | MagicMock, Mock, NonCallableMock, |
Lisa Roach | 77b3b77 | 2019-05-20 09:19:53 -0700 | [diff] [blame] | 13 | NonCallableMagicMock, AsyncMock, _Call, _CallList, |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 14 | create_autospec |
| 15 | ) |
| 16 | |
| 17 | |
| 18 | class Iter(object): |
| 19 | def __init__(self): |
| 20 | self.thing = iter(['this', 'is', 'an', 'iter']) |
| 21 | |
| 22 | def __iter__(self): |
| 23 | return self |
| 24 | |
| 25 | def next(self): |
| 26 | return next(self.thing) |
| 27 | |
| 28 | __next__ = next |
| 29 | |
| 30 | |
Antoine Pitrou | 5c64df7 | 2013-02-03 00:23:58 +0100 | [diff] [blame] | 31 | class Something(object): |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 32 | def meth(self, a, b, c, d=None): pass |
Antoine Pitrou | 5c64df7 | 2013-02-03 00:23:58 +0100 | [diff] [blame] | 33 | |
| 34 | @classmethod |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 35 | def cmeth(cls, a, b, c, d=None): pass |
Antoine Pitrou | 5c64df7 | 2013-02-03 00:23:58 +0100 | [diff] [blame] | 36 | |
| 37 | @staticmethod |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 38 | def smeth(a, b, c, d=None): pass |
Antoine Pitrou | 5c64df7 | 2013-02-03 00:23:58 +0100 | [diff] [blame] | 39 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 40 | |
Xtreak | 7397cda | 2019-07-22 13:08:22 +0530 | [diff] [blame] | 41 | def something(a): pass |
| 42 | |
| 43 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 44 | class MockTest(unittest.TestCase): |
| 45 | |
| 46 | def test_all(self): |
| 47 | # if __all__ is badly defined then import * will raise an error |
| 48 | # We have to exec it because you can't import * inside a method |
| 49 | # in Python 3 |
Michael Foord | 83a1685 | 2012-03-14 12:58:46 -0700 | [diff] [blame] | 50 | exec("from unittest.mock import *") |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 51 | |
| 52 | |
| 53 | def test_constructor(self): |
| 54 | mock = Mock() |
| 55 | |
| 56 | self.assertFalse(mock.called, "called not initialised correctly") |
| 57 | self.assertEqual(mock.call_count, 0, |
| 58 | "call_count not initialised correctly") |
| 59 | self.assertTrue(is_instance(mock.return_value, Mock), |
| 60 | "return_value not initialised correctly") |
| 61 | |
| 62 | self.assertEqual(mock.call_args, None, |
| 63 | "call_args not initialised correctly") |
| 64 | self.assertEqual(mock.call_args_list, [], |
| 65 | "call_args_list not initialised correctly") |
| 66 | self.assertEqual(mock.method_calls, [], |
| 67 | "method_calls not initialised correctly") |
| 68 | |
| 69 | # Can't use hasattr for this test as it always returns True on a mock |
Serhiy Storchaka | 5665bc5 | 2013-11-17 00:12:21 +0200 | [diff] [blame] | 70 | self.assertNotIn('_items', mock.__dict__, |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 71 | "default mock should not have '_items' attribute") |
| 72 | |
| 73 | self.assertIsNone(mock._mock_parent, |
| 74 | "parent not initialised correctly") |
| 75 | self.assertIsNone(mock._mock_methods, |
| 76 | "methods not initialised correctly") |
| 77 | self.assertEqual(mock._mock_children, {}, |
| 78 | "children not initialised incorrectly") |
| 79 | |
| 80 | |
| 81 | def test_return_value_in_constructor(self): |
| 82 | mock = Mock(return_value=None) |
| 83 | self.assertIsNone(mock.return_value, |
| 84 | "return value in constructor not honoured") |
| 85 | |
| 86 | |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 87 | def test_change_return_value_via_delegate(self): |
| 88 | def f(): pass |
| 89 | mock = create_autospec(f) |
| 90 | mock.mock.return_value = 1 |
| 91 | self.assertEqual(mock(), 1) |
| 92 | |
| 93 | |
| 94 | def test_change_side_effect_via_delegate(self): |
| 95 | def f(): pass |
| 96 | mock = create_autospec(f) |
| 97 | mock.mock.side_effect = TypeError() |
| 98 | with self.assertRaises(TypeError): |
| 99 | mock() |
| 100 | |
| 101 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 102 | def test_repr(self): |
| 103 | mock = Mock(name='foo') |
| 104 | self.assertIn('foo', repr(mock)) |
| 105 | self.assertIn("'%s'" % id(mock), repr(mock)) |
| 106 | |
| 107 | mocks = [(Mock(), 'mock'), (Mock(name='bar'), 'bar')] |
| 108 | for mock, name in mocks: |
| 109 | self.assertIn('%s.bar' % name, repr(mock.bar)) |
| 110 | self.assertIn('%s.foo()' % name, repr(mock.foo())) |
| 111 | self.assertIn('%s.foo().bing' % name, repr(mock.foo().bing)) |
| 112 | self.assertIn('%s()' % name, repr(mock())) |
| 113 | self.assertIn('%s()()' % name, repr(mock()())) |
| 114 | self.assertIn('%s()().foo.bar.baz().bing' % name, |
| 115 | repr(mock()().foo.bar.baz().bing)) |
| 116 | |
| 117 | |
| 118 | def test_repr_with_spec(self): |
| 119 | class X(object): |
| 120 | pass |
| 121 | |
| 122 | mock = Mock(spec=X) |
| 123 | self.assertIn(" spec='X' ", repr(mock)) |
| 124 | |
| 125 | mock = Mock(spec=X()) |
| 126 | self.assertIn(" spec='X' ", repr(mock)) |
| 127 | |
| 128 | mock = Mock(spec_set=X) |
| 129 | self.assertIn(" spec_set='X' ", repr(mock)) |
| 130 | |
| 131 | mock = Mock(spec_set=X()) |
| 132 | self.assertIn(" spec_set='X' ", repr(mock)) |
| 133 | |
| 134 | mock = Mock(spec=X, name='foo') |
| 135 | self.assertIn(" spec='X' ", repr(mock)) |
| 136 | self.assertIn(" name='foo' ", repr(mock)) |
| 137 | |
| 138 | mock = Mock(name='foo') |
| 139 | self.assertNotIn("spec", repr(mock)) |
| 140 | |
| 141 | mock = Mock() |
| 142 | self.assertNotIn("spec", repr(mock)) |
| 143 | |
| 144 | mock = Mock(spec=['foo']) |
| 145 | self.assertNotIn("spec", repr(mock)) |
| 146 | |
| 147 | |
| 148 | def test_side_effect(self): |
| 149 | mock = Mock() |
| 150 | |
| 151 | def effect(*args, **kwargs): |
| 152 | raise SystemError('kablooie') |
| 153 | |
| 154 | mock.side_effect = effect |
| 155 | self.assertRaises(SystemError, mock, 1, 2, fish=3) |
| 156 | mock.assert_called_with(1, 2, fish=3) |
| 157 | |
| 158 | results = [1, 2, 3] |
| 159 | def effect(): |
| 160 | return results.pop() |
| 161 | mock.side_effect = effect |
| 162 | |
| 163 | self.assertEqual([mock(), mock(), mock()], [3, 2, 1], |
| 164 | "side effect not used correctly") |
| 165 | |
| 166 | mock = Mock(side_effect=sentinel.SideEffect) |
| 167 | self.assertEqual(mock.side_effect, sentinel.SideEffect, |
| 168 | "side effect in constructor not used") |
| 169 | |
| 170 | def side_effect(): |
| 171 | return DEFAULT |
| 172 | mock = Mock(side_effect=side_effect, return_value=sentinel.RETURN) |
| 173 | self.assertEqual(mock(), sentinel.RETURN) |
| 174 | |
Michael Foord | 01bafdc | 2014-04-14 16:09:42 -0400 | [diff] [blame] | 175 | def test_autospec_side_effect(self): |
| 176 | # Test for issue17826 |
| 177 | results = [1, 2, 3] |
| 178 | def effect(): |
| 179 | return results.pop() |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 180 | def f(): pass |
Michael Foord | 01bafdc | 2014-04-14 16:09:42 -0400 | [diff] [blame] | 181 | |
| 182 | mock = create_autospec(f) |
| 183 | mock.side_effect = [1, 2, 3] |
| 184 | self.assertEqual([mock(), mock(), mock()], [1, 2, 3], |
| 185 | "side effect not used correctly in create_autospec") |
| 186 | # Test where side effect is a callable |
| 187 | results = [1, 2, 3] |
| 188 | mock = create_autospec(f) |
| 189 | mock.side_effect = effect |
| 190 | self.assertEqual([mock(), mock(), mock()], [3, 2, 1], |
| 191 | "callable side effect not used correctly") |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 192 | |
Robert Collins | f58f88c | 2015-07-14 13:51:40 +1200 | [diff] [blame] | 193 | def test_autospec_side_effect_exception(self): |
| 194 | # Test for issue 23661 |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 195 | def f(): pass |
Robert Collins | f58f88c | 2015-07-14 13:51:40 +1200 | [diff] [blame] | 196 | |
| 197 | mock = create_autospec(f) |
| 198 | mock.side_effect = ValueError('Bazinga!') |
| 199 | self.assertRaisesRegex(ValueError, 'Bazinga!', mock) |
| 200 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 201 | |
| 202 | def test_reset_mock(self): |
| 203 | parent = Mock() |
| 204 | spec = ["something"] |
| 205 | mock = Mock(name="child", parent=parent, spec=spec) |
| 206 | mock(sentinel.Something, something=sentinel.SomethingElse) |
| 207 | something = mock.something |
| 208 | mock.something() |
| 209 | mock.side_effect = sentinel.SideEffect |
| 210 | return_value = mock.return_value |
| 211 | return_value() |
| 212 | |
| 213 | mock.reset_mock() |
| 214 | |
| 215 | self.assertEqual(mock._mock_name, "child", |
| 216 | "name incorrectly reset") |
| 217 | self.assertEqual(mock._mock_parent, parent, |
| 218 | "parent incorrectly reset") |
| 219 | self.assertEqual(mock._mock_methods, spec, |
| 220 | "methods incorrectly reset") |
| 221 | |
| 222 | self.assertFalse(mock.called, "called not reset") |
| 223 | self.assertEqual(mock.call_count, 0, "call_count not reset") |
| 224 | self.assertEqual(mock.call_args, None, "call_args not reset") |
| 225 | self.assertEqual(mock.call_args_list, [], "call_args_list not reset") |
| 226 | self.assertEqual(mock.method_calls, [], |
| 227 | "method_calls not initialised correctly: %r != %r" % |
| 228 | (mock.method_calls, [])) |
| 229 | self.assertEqual(mock.mock_calls, []) |
| 230 | |
| 231 | self.assertEqual(mock.side_effect, sentinel.SideEffect, |
| 232 | "side_effect incorrectly reset") |
| 233 | self.assertEqual(mock.return_value, return_value, |
| 234 | "return_value incorrectly reset") |
| 235 | self.assertFalse(return_value.called, "return value mock not reset") |
| 236 | self.assertEqual(mock._mock_children, {'something': something}, |
| 237 | "children reset incorrectly") |
| 238 | self.assertEqual(mock.something, something, |
| 239 | "children incorrectly cleared") |
| 240 | self.assertFalse(mock.something.called, "child not reset") |
| 241 | |
| 242 | |
| 243 | def test_reset_mock_recursion(self): |
| 244 | mock = Mock() |
| 245 | mock.return_value = mock |
| 246 | |
| 247 | # used to cause recursion |
| 248 | mock.reset_mock() |
| 249 | |
Robert Collins | b37f43f | 2015-07-15 11:42:28 +1200 | [diff] [blame] | 250 | def test_reset_mock_on_mock_open_issue_18622(self): |
| 251 | a = mock.mock_open() |
| 252 | a.reset_mock() |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 253 | |
| 254 | def test_call(self): |
| 255 | mock = Mock() |
| 256 | self.assertTrue(is_instance(mock.return_value, Mock), |
| 257 | "Default return_value should be a Mock") |
| 258 | |
| 259 | result = mock() |
| 260 | self.assertEqual(mock(), result, |
| 261 | "different result from consecutive calls") |
| 262 | mock.reset_mock() |
| 263 | |
| 264 | ret_val = mock(sentinel.Arg) |
| 265 | self.assertTrue(mock.called, "called not set") |
Min ho Kim | c4cacc8 | 2019-07-31 08:16:13 +1000 | [diff] [blame] | 266 | self.assertEqual(mock.call_count, 1, "call_count incorrect") |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 267 | self.assertEqual(mock.call_args, ((sentinel.Arg,), {}), |
| 268 | "call_args not set") |
Kumar Akshay | b0df45e | 2019-03-22 13:40:40 +0530 | [diff] [blame] | 269 | self.assertEqual(mock.call_args.args, (sentinel.Arg,), |
| 270 | "call_args not set") |
| 271 | self.assertEqual(mock.call_args.kwargs, {}, |
| 272 | "call_args not set") |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 273 | self.assertEqual(mock.call_args_list, [((sentinel.Arg,), {})], |
| 274 | "call_args_list not initialised correctly") |
| 275 | |
| 276 | mock.return_value = sentinel.ReturnValue |
| 277 | ret_val = mock(sentinel.Arg, key=sentinel.KeyArg) |
| 278 | self.assertEqual(ret_val, sentinel.ReturnValue, |
| 279 | "incorrect return value") |
| 280 | |
| 281 | self.assertEqual(mock.call_count, 2, "call_count incorrect") |
| 282 | self.assertEqual(mock.call_args, |
| 283 | ((sentinel.Arg,), {'key': sentinel.KeyArg}), |
| 284 | "call_args not set") |
| 285 | self.assertEqual(mock.call_args_list, [ |
| 286 | ((sentinel.Arg,), {}), |
| 287 | ((sentinel.Arg,), {'key': sentinel.KeyArg}) |
| 288 | ], |
| 289 | "call_args_list not set") |
| 290 | |
| 291 | |
| 292 | def test_call_args_comparison(self): |
| 293 | mock = Mock() |
| 294 | mock() |
| 295 | mock(sentinel.Arg) |
| 296 | mock(kw=sentinel.Kwarg) |
| 297 | mock(sentinel.Arg, kw=sentinel.Kwarg) |
| 298 | self.assertEqual(mock.call_args_list, [ |
| 299 | (), |
| 300 | ((sentinel.Arg,),), |
| 301 | ({"kw": sentinel.Kwarg},), |
| 302 | ((sentinel.Arg,), {"kw": sentinel.Kwarg}) |
| 303 | ]) |
| 304 | self.assertEqual(mock.call_args, |
| 305 | ((sentinel.Arg,), {"kw": sentinel.Kwarg})) |
Kumar Akshay | b0df45e | 2019-03-22 13:40:40 +0530 | [diff] [blame] | 306 | self.assertEqual(mock.call_args.args, (sentinel.Arg,)) |
| 307 | self.assertEqual(mock.call_args.kwargs, {"kw": sentinel.Kwarg}) |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 308 | |
Berker Peksag | 3fc536f | 2015-09-09 23:35:25 +0300 | [diff] [blame] | 309 | # Comparing call_args to a long sequence should not raise |
| 310 | # an exception. See issue 24857. |
| 311 | self.assertFalse(mock.call_args == "a long sequence") |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 312 | |
Berker Peksag | ce91387 | 2016-03-28 00:30:02 +0300 | [diff] [blame] | 313 | |
| 314 | def test_calls_equal_with_any(self): |
Berker Peksag | ce91387 | 2016-03-28 00:30:02 +0300 | [diff] [blame] | 315 | # Check that equality and non-equality is consistent even when |
| 316 | # comparing with mock.ANY |
Serhiy Storchaka | 362f058 | 2017-01-21 23:12:58 +0200 | [diff] [blame] | 317 | mm = mock.MagicMock() |
| 318 | self.assertTrue(mm == mm) |
| 319 | self.assertFalse(mm != mm) |
| 320 | self.assertFalse(mm == mock.MagicMock()) |
| 321 | self.assertTrue(mm != mock.MagicMock()) |
| 322 | self.assertTrue(mm == mock.ANY) |
| 323 | self.assertFalse(mm != mock.ANY) |
| 324 | self.assertTrue(mock.ANY == mm) |
| 325 | self.assertFalse(mock.ANY != mm) |
Serhiy Storchaka | 662db12 | 2019-08-08 08:42:54 +0300 | [diff] [blame] | 326 | self.assertTrue(mm == ALWAYS_EQ) |
| 327 | self.assertFalse(mm != ALWAYS_EQ) |
Serhiy Storchaka | 362f058 | 2017-01-21 23:12:58 +0200 | [diff] [blame] | 328 | |
| 329 | call1 = mock.call(mock.MagicMock()) |
| 330 | call2 = mock.call(mock.ANY) |
Berker Peksag | ce91387 | 2016-03-28 00:30:02 +0300 | [diff] [blame] | 331 | self.assertTrue(call1 == call2) |
| 332 | self.assertFalse(call1 != call2) |
Serhiy Storchaka | 362f058 | 2017-01-21 23:12:58 +0200 | [diff] [blame] | 333 | self.assertTrue(call2 == call1) |
| 334 | self.assertFalse(call2 != call1) |
Berker Peksag | ce91387 | 2016-03-28 00:30:02 +0300 | [diff] [blame] | 335 | |
Serhiy Storchaka | 662db12 | 2019-08-08 08:42:54 +0300 | [diff] [blame] | 336 | self.assertTrue(call1 == ALWAYS_EQ) |
| 337 | self.assertFalse(call1 != ALWAYS_EQ) |
| 338 | self.assertFalse(call1 == 1) |
| 339 | self.assertTrue(call1 != 1) |
| 340 | |
Berker Peksag | ce91387 | 2016-03-28 00:30:02 +0300 | [diff] [blame] | 341 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 342 | def test_assert_called_with(self): |
| 343 | mock = Mock() |
| 344 | mock() |
| 345 | |
| 346 | # Will raise an exception if it fails |
| 347 | mock.assert_called_with() |
| 348 | self.assertRaises(AssertionError, mock.assert_called_with, 1) |
| 349 | |
| 350 | mock.reset_mock() |
| 351 | self.assertRaises(AssertionError, mock.assert_called_with) |
| 352 | |
| 353 | mock(1, 2, 3, a='fish', b='nothing') |
| 354 | mock.assert_called_with(1, 2, 3, a='fish', b='nothing') |
| 355 | |
| 356 | |
Berker Peksag | ce91387 | 2016-03-28 00:30:02 +0300 | [diff] [blame] | 357 | def test_assert_called_with_any(self): |
| 358 | m = MagicMock() |
| 359 | m(MagicMock()) |
| 360 | m.assert_called_with(mock.ANY) |
| 361 | |
| 362 | |
Antoine Pitrou | 5c64df7 | 2013-02-03 00:23:58 +0100 | [diff] [blame] | 363 | def test_assert_called_with_function_spec(self): |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 364 | def f(a, b, c, d=None): pass |
Antoine Pitrou | 5c64df7 | 2013-02-03 00:23:58 +0100 | [diff] [blame] | 365 | |
| 366 | mock = Mock(spec=f) |
| 367 | |
| 368 | mock(1, b=2, c=3) |
| 369 | mock.assert_called_with(1, 2, 3) |
| 370 | mock.assert_called_with(a=1, b=2, c=3) |
| 371 | self.assertRaises(AssertionError, mock.assert_called_with, |
| 372 | 1, b=3, c=2) |
| 373 | # Expected call doesn't match the spec's signature |
| 374 | with self.assertRaises(AssertionError) as cm: |
| 375 | mock.assert_called_with(e=8) |
| 376 | self.assertIsInstance(cm.exception.__cause__, TypeError) |
| 377 | |
| 378 | |
| 379 | def test_assert_called_with_method_spec(self): |
| 380 | def _check(mock): |
| 381 | mock(1, b=2, c=3) |
| 382 | mock.assert_called_with(1, 2, 3) |
| 383 | mock.assert_called_with(a=1, b=2, c=3) |
| 384 | self.assertRaises(AssertionError, mock.assert_called_with, |
| 385 | 1, b=3, c=2) |
| 386 | |
| 387 | mock = Mock(spec=Something().meth) |
| 388 | _check(mock) |
| 389 | mock = Mock(spec=Something.cmeth) |
| 390 | _check(mock) |
| 391 | mock = Mock(spec=Something().cmeth) |
| 392 | _check(mock) |
| 393 | mock = Mock(spec=Something.smeth) |
| 394 | _check(mock) |
| 395 | mock = Mock(spec=Something().smeth) |
| 396 | _check(mock) |
| 397 | |
| 398 | |
Abraham Toriz Cruz | 5f5f11f | 2019-09-17 06:16:08 -0500 | [diff] [blame^] | 399 | def test_assert_called_exception_message(self): |
| 400 | msg = "Expected '{0}' to have been called" |
| 401 | with self.assertRaisesRegex(AssertionError, msg.format('mock')): |
| 402 | Mock().assert_called() |
| 403 | with self.assertRaisesRegex(AssertionError, msg.format('test_name')): |
| 404 | Mock(name="test_name").assert_called() |
| 405 | |
| 406 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 407 | def test_assert_called_once_with(self): |
| 408 | mock = Mock() |
| 409 | mock() |
| 410 | |
| 411 | # Will raise an exception if it fails |
| 412 | mock.assert_called_once_with() |
| 413 | |
| 414 | mock() |
| 415 | self.assertRaises(AssertionError, mock.assert_called_once_with) |
| 416 | |
| 417 | mock.reset_mock() |
| 418 | self.assertRaises(AssertionError, mock.assert_called_once_with) |
| 419 | |
| 420 | mock('foo', 'bar', baz=2) |
| 421 | mock.assert_called_once_with('foo', 'bar', baz=2) |
| 422 | |
| 423 | mock.reset_mock() |
| 424 | mock('foo', 'bar', baz=2) |
| 425 | self.assertRaises( |
| 426 | AssertionError, |
| 427 | lambda: mock.assert_called_once_with('bob', 'bar', baz=2) |
| 428 | ) |
| 429 | |
Petter Strandmark | 47d9424 | 2018-10-28 21:37:10 +0100 | [diff] [blame] | 430 | def test_assert_called_once_with_call_list(self): |
| 431 | m = Mock() |
| 432 | m(1) |
| 433 | m(2) |
| 434 | self.assertRaisesRegex(AssertionError, |
| 435 | re.escape("Calls: [call(1), call(2)]"), |
| 436 | lambda: m.assert_called_once_with(2)) |
| 437 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 438 | |
Antoine Pitrou | 5c64df7 | 2013-02-03 00:23:58 +0100 | [diff] [blame] | 439 | def test_assert_called_once_with_function_spec(self): |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 440 | def f(a, b, c, d=None): pass |
Antoine Pitrou | 5c64df7 | 2013-02-03 00:23:58 +0100 | [diff] [blame] | 441 | |
| 442 | mock = Mock(spec=f) |
| 443 | |
| 444 | mock(1, b=2, c=3) |
| 445 | mock.assert_called_once_with(1, 2, 3) |
| 446 | mock.assert_called_once_with(a=1, b=2, c=3) |
| 447 | self.assertRaises(AssertionError, mock.assert_called_once_with, |
| 448 | 1, b=3, c=2) |
| 449 | # Expected call doesn't match the spec's signature |
| 450 | with self.assertRaises(AssertionError) as cm: |
| 451 | mock.assert_called_once_with(e=8) |
| 452 | self.assertIsInstance(cm.exception.__cause__, TypeError) |
| 453 | # Mock called more than once => always fails |
| 454 | mock(4, 5, 6) |
| 455 | self.assertRaises(AssertionError, mock.assert_called_once_with, |
| 456 | 1, 2, 3) |
| 457 | self.assertRaises(AssertionError, mock.assert_called_once_with, |
| 458 | 4, 5, 6) |
| 459 | |
| 460 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 461 | def test_attribute_access_returns_mocks(self): |
| 462 | mock = Mock() |
| 463 | something = mock.something |
| 464 | self.assertTrue(is_instance(something, Mock), "attribute isn't a mock") |
| 465 | self.assertEqual(mock.something, something, |
| 466 | "different attributes returned for same name") |
| 467 | |
| 468 | # Usage example |
| 469 | mock = Mock() |
| 470 | mock.something.return_value = 3 |
| 471 | |
| 472 | self.assertEqual(mock.something(), 3, "method returned wrong value") |
| 473 | self.assertTrue(mock.something.called, |
| 474 | "method didn't record being called") |
| 475 | |
| 476 | |
| 477 | def test_attributes_have_name_and_parent_set(self): |
| 478 | mock = Mock() |
| 479 | something = mock.something |
| 480 | |
| 481 | self.assertEqual(something._mock_name, "something", |
| 482 | "attribute name not set correctly") |
| 483 | self.assertEqual(something._mock_parent, mock, |
| 484 | "attribute parent not set correctly") |
| 485 | |
| 486 | |
| 487 | def test_method_calls_recorded(self): |
| 488 | mock = Mock() |
| 489 | mock.something(3, fish=None) |
| 490 | mock.something_else.something(6, cake=sentinel.Cake) |
| 491 | |
| 492 | self.assertEqual(mock.something_else.method_calls, |
| 493 | [("something", (6,), {'cake': sentinel.Cake})], |
| 494 | "method calls not recorded correctly") |
| 495 | self.assertEqual(mock.method_calls, [ |
| 496 | ("something", (3,), {'fish': None}), |
| 497 | ("something_else.something", (6,), {'cake': sentinel.Cake}) |
| 498 | ], |
| 499 | "method calls not recorded correctly") |
| 500 | |
| 501 | |
| 502 | def test_method_calls_compare_easily(self): |
| 503 | mock = Mock() |
| 504 | mock.something() |
| 505 | self.assertEqual(mock.method_calls, [('something',)]) |
| 506 | self.assertEqual(mock.method_calls, [('something', (), {})]) |
| 507 | |
| 508 | mock = Mock() |
| 509 | mock.something('different') |
| 510 | self.assertEqual(mock.method_calls, [('something', ('different',))]) |
| 511 | self.assertEqual(mock.method_calls, |
| 512 | [('something', ('different',), {})]) |
| 513 | |
| 514 | mock = Mock() |
| 515 | mock.something(x=1) |
| 516 | self.assertEqual(mock.method_calls, [('something', {'x': 1})]) |
| 517 | self.assertEqual(mock.method_calls, [('something', (), {'x': 1})]) |
| 518 | |
| 519 | mock = Mock() |
| 520 | mock.something('different', some='more') |
| 521 | self.assertEqual(mock.method_calls, [ |
| 522 | ('something', ('different',), {'some': 'more'}) |
| 523 | ]) |
| 524 | |
| 525 | |
| 526 | def test_only_allowed_methods_exist(self): |
| 527 | for spec in ['something'], ('something',): |
| 528 | for arg in 'spec', 'spec_set': |
| 529 | mock = Mock(**{arg: spec}) |
| 530 | |
| 531 | # this should be allowed |
| 532 | mock.something |
| 533 | self.assertRaisesRegex( |
| 534 | AttributeError, |
| 535 | "Mock object has no attribute 'something_else'", |
| 536 | getattr, mock, 'something_else' |
| 537 | ) |
| 538 | |
| 539 | |
| 540 | def test_from_spec(self): |
| 541 | class Something(object): |
| 542 | x = 3 |
| 543 | __something__ = None |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 544 | def y(self): pass |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 545 | |
| 546 | def test_attributes(mock): |
| 547 | # should work |
| 548 | mock.x |
| 549 | mock.y |
| 550 | mock.__something__ |
| 551 | self.assertRaisesRegex( |
| 552 | AttributeError, |
| 553 | "Mock object has no attribute 'z'", |
| 554 | getattr, mock, 'z' |
| 555 | ) |
| 556 | self.assertRaisesRegex( |
| 557 | AttributeError, |
| 558 | "Mock object has no attribute '__foobar__'", |
| 559 | getattr, mock, '__foobar__' |
| 560 | ) |
| 561 | |
| 562 | test_attributes(Mock(spec=Something)) |
| 563 | test_attributes(Mock(spec=Something())) |
| 564 | |
| 565 | |
| 566 | def test_wraps_calls(self): |
| 567 | real = Mock() |
| 568 | |
| 569 | mock = Mock(wraps=real) |
| 570 | self.assertEqual(mock(), real()) |
| 571 | |
| 572 | real.reset_mock() |
| 573 | |
| 574 | mock(1, 2, fish=3) |
| 575 | real.assert_called_with(1, 2, fish=3) |
| 576 | |
| 577 | |
Mario Corchero | f05df0a | 2018-12-08 11:25:02 +0000 | [diff] [blame] | 578 | def test_wraps_prevents_automatic_creation_of_mocks(self): |
| 579 | class Real(object): |
| 580 | pass |
| 581 | |
| 582 | real = Real() |
| 583 | mock = Mock(wraps=real) |
| 584 | |
| 585 | self.assertRaises(AttributeError, lambda: mock.new_attr()) |
| 586 | |
| 587 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 588 | def test_wraps_call_with_nondefault_return_value(self): |
| 589 | real = Mock() |
| 590 | |
| 591 | mock = Mock(wraps=real) |
| 592 | mock.return_value = 3 |
| 593 | |
| 594 | self.assertEqual(mock(), 3) |
| 595 | self.assertFalse(real.called) |
| 596 | |
| 597 | |
| 598 | def test_wraps_attributes(self): |
| 599 | class Real(object): |
| 600 | attribute = Mock() |
| 601 | |
| 602 | real = Real() |
| 603 | |
| 604 | mock = Mock(wraps=real) |
| 605 | self.assertEqual(mock.attribute(), real.attribute()) |
| 606 | self.assertRaises(AttributeError, lambda: mock.fish) |
| 607 | |
| 608 | self.assertNotEqual(mock.attribute, real.attribute) |
| 609 | result = mock.attribute.frog(1, 2, fish=3) |
| 610 | Real.attribute.frog.assert_called_with(1, 2, fish=3) |
| 611 | self.assertEqual(result, Real.attribute.frog()) |
| 612 | |
| 613 | |
Mario Corchero | f05df0a | 2018-12-08 11:25:02 +0000 | [diff] [blame] | 614 | def test_customize_wrapped_object_with_side_effect_iterable_with_default(self): |
| 615 | class Real(object): |
| 616 | def method(self): |
| 617 | return sentinel.ORIGINAL_VALUE |
| 618 | |
| 619 | real = Real() |
| 620 | mock = Mock(wraps=real) |
| 621 | mock.method.side_effect = [sentinel.VALUE1, DEFAULT] |
| 622 | |
| 623 | self.assertEqual(mock.method(), sentinel.VALUE1) |
| 624 | self.assertEqual(mock.method(), sentinel.ORIGINAL_VALUE) |
| 625 | self.assertRaises(StopIteration, mock.method) |
| 626 | |
| 627 | |
| 628 | def test_customize_wrapped_object_with_side_effect_iterable(self): |
| 629 | class Real(object): |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 630 | def method(self): pass |
Mario Corchero | f05df0a | 2018-12-08 11:25:02 +0000 | [diff] [blame] | 631 | |
| 632 | real = Real() |
| 633 | mock = Mock(wraps=real) |
| 634 | mock.method.side_effect = [sentinel.VALUE1, sentinel.VALUE2] |
| 635 | |
| 636 | self.assertEqual(mock.method(), sentinel.VALUE1) |
| 637 | self.assertEqual(mock.method(), sentinel.VALUE2) |
| 638 | self.assertRaises(StopIteration, mock.method) |
| 639 | |
| 640 | |
| 641 | def test_customize_wrapped_object_with_side_effect_exception(self): |
| 642 | class Real(object): |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 643 | def method(self): pass |
Mario Corchero | f05df0a | 2018-12-08 11:25:02 +0000 | [diff] [blame] | 644 | |
| 645 | real = Real() |
| 646 | mock = Mock(wraps=real) |
| 647 | mock.method.side_effect = RuntimeError |
| 648 | |
| 649 | self.assertRaises(RuntimeError, mock.method) |
| 650 | |
| 651 | |
| 652 | def test_customize_wrapped_object_with_side_effect_function(self): |
| 653 | class Real(object): |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 654 | def method(self): pass |
Mario Corchero | f05df0a | 2018-12-08 11:25:02 +0000 | [diff] [blame] | 655 | def side_effect(): |
| 656 | return sentinel.VALUE |
| 657 | |
| 658 | real = Real() |
| 659 | mock = Mock(wraps=real) |
| 660 | mock.method.side_effect = side_effect |
| 661 | |
| 662 | self.assertEqual(mock.method(), sentinel.VALUE) |
| 663 | |
| 664 | |
| 665 | def test_customize_wrapped_object_with_return_value(self): |
| 666 | class Real(object): |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 667 | def method(self): pass |
Mario Corchero | f05df0a | 2018-12-08 11:25:02 +0000 | [diff] [blame] | 668 | |
| 669 | real = Real() |
| 670 | mock = Mock(wraps=real) |
| 671 | mock.method.return_value = sentinel.VALUE |
| 672 | |
| 673 | self.assertEqual(mock.method(), sentinel.VALUE) |
| 674 | |
| 675 | |
| 676 | def test_customize_wrapped_object_with_return_value_and_side_effect(self): |
| 677 | # side_effect should always take precedence over return_value. |
| 678 | class Real(object): |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 679 | def method(self): pass |
Mario Corchero | f05df0a | 2018-12-08 11:25:02 +0000 | [diff] [blame] | 680 | |
| 681 | real = Real() |
| 682 | mock = Mock(wraps=real) |
| 683 | mock.method.side_effect = [sentinel.VALUE1, sentinel.VALUE2] |
| 684 | mock.method.return_value = sentinel.WRONG_VALUE |
| 685 | |
| 686 | self.assertEqual(mock.method(), sentinel.VALUE1) |
| 687 | self.assertEqual(mock.method(), sentinel.VALUE2) |
| 688 | self.assertRaises(StopIteration, mock.method) |
| 689 | |
| 690 | |
| 691 | def test_customize_wrapped_object_with_return_value_and_side_effect2(self): |
| 692 | # side_effect can return DEFAULT to default to return_value |
| 693 | class Real(object): |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 694 | def method(self): pass |
Mario Corchero | f05df0a | 2018-12-08 11:25:02 +0000 | [diff] [blame] | 695 | |
| 696 | real = Real() |
| 697 | mock = Mock(wraps=real) |
| 698 | mock.method.side_effect = lambda: DEFAULT |
| 699 | mock.method.return_value = sentinel.VALUE |
| 700 | |
| 701 | self.assertEqual(mock.method(), sentinel.VALUE) |
| 702 | |
| 703 | |
| 704 | def test_customize_wrapped_object_with_return_value_and_side_effect_default(self): |
| 705 | class Real(object): |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 706 | def method(self): pass |
Mario Corchero | f05df0a | 2018-12-08 11:25:02 +0000 | [diff] [blame] | 707 | |
| 708 | real = Real() |
| 709 | mock = Mock(wraps=real) |
| 710 | mock.method.side_effect = [sentinel.VALUE1, DEFAULT] |
| 711 | mock.method.return_value = sentinel.RETURN |
| 712 | |
| 713 | self.assertEqual(mock.method(), sentinel.VALUE1) |
| 714 | self.assertEqual(mock.method(), sentinel.RETURN) |
| 715 | self.assertRaises(StopIteration, mock.method) |
| 716 | |
| 717 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 718 | def test_exceptional_side_effect(self): |
| 719 | mock = Mock(side_effect=AttributeError) |
| 720 | self.assertRaises(AttributeError, mock) |
| 721 | |
| 722 | mock = Mock(side_effect=AttributeError('foo')) |
| 723 | self.assertRaises(AttributeError, mock) |
| 724 | |
| 725 | |
| 726 | def test_baseexceptional_side_effect(self): |
| 727 | mock = Mock(side_effect=KeyboardInterrupt) |
| 728 | self.assertRaises(KeyboardInterrupt, mock) |
| 729 | |
| 730 | mock = Mock(side_effect=KeyboardInterrupt('foo')) |
| 731 | self.assertRaises(KeyboardInterrupt, mock) |
| 732 | |
| 733 | |
| 734 | def test_assert_called_with_message(self): |
| 735 | mock = Mock() |
Susan Su | 2bdd585 | 2019-02-13 18:22:29 -0800 | [diff] [blame] | 736 | self.assertRaisesRegex(AssertionError, 'not called', |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 737 | mock.assert_called_with) |
| 738 | |
| 739 | |
Michael Foord | 28d591c | 2012-09-28 16:15:22 +0100 | [diff] [blame] | 740 | def test_assert_called_once_with_message(self): |
| 741 | mock = Mock(name='geoffrey') |
| 742 | self.assertRaisesRegex(AssertionError, |
| 743 | r"Expected 'geoffrey' to be called once\.", |
| 744 | mock.assert_called_once_with) |
| 745 | |
| 746 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 747 | def test__name__(self): |
| 748 | mock = Mock() |
| 749 | self.assertRaises(AttributeError, lambda: mock.__name__) |
| 750 | |
| 751 | mock.__name__ = 'foo' |
| 752 | self.assertEqual(mock.__name__, 'foo') |
| 753 | |
| 754 | |
| 755 | def test_spec_list_subclass(self): |
| 756 | class Sub(list): |
| 757 | pass |
| 758 | mock = Mock(spec=Sub(['foo'])) |
| 759 | |
| 760 | mock.append(3) |
| 761 | mock.append.assert_called_with(3) |
| 762 | self.assertRaises(AttributeError, getattr, mock, 'foo') |
| 763 | |
| 764 | |
| 765 | def test_spec_class(self): |
| 766 | class X(object): |
| 767 | pass |
| 768 | |
| 769 | mock = Mock(spec=X) |
Serhiy Storchaka | 5665bc5 | 2013-11-17 00:12:21 +0200 | [diff] [blame] | 770 | self.assertIsInstance(mock, X) |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 771 | |
| 772 | mock = Mock(spec=X()) |
Serhiy Storchaka | 5665bc5 | 2013-11-17 00:12:21 +0200 | [diff] [blame] | 773 | self.assertIsInstance(mock, X) |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 774 | |
| 775 | self.assertIs(mock.__class__, X) |
| 776 | self.assertEqual(Mock().__class__.__name__, 'Mock') |
| 777 | |
| 778 | mock = Mock(spec_set=X) |
Serhiy Storchaka | 5665bc5 | 2013-11-17 00:12:21 +0200 | [diff] [blame] | 779 | self.assertIsInstance(mock, X) |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 780 | |
| 781 | mock = Mock(spec_set=X()) |
Serhiy Storchaka | 5665bc5 | 2013-11-17 00:12:21 +0200 | [diff] [blame] | 782 | self.assertIsInstance(mock, X) |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 783 | |
| 784 | |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 785 | def test_spec_class_no_object_base(self): |
| 786 | class X: |
| 787 | pass |
| 788 | |
| 789 | mock = Mock(spec=X) |
| 790 | self.assertIsInstance(mock, X) |
| 791 | |
| 792 | mock = Mock(spec=X()) |
| 793 | self.assertIsInstance(mock, X) |
| 794 | |
| 795 | self.assertIs(mock.__class__, X) |
| 796 | self.assertEqual(Mock().__class__.__name__, 'Mock') |
| 797 | |
| 798 | mock = Mock(spec_set=X) |
| 799 | self.assertIsInstance(mock, X) |
| 800 | |
| 801 | mock = Mock(spec_set=X()) |
| 802 | self.assertIsInstance(mock, X) |
| 803 | |
| 804 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 805 | def test_setting_attribute_with_spec_set(self): |
| 806 | class X(object): |
| 807 | y = 3 |
| 808 | |
| 809 | mock = Mock(spec=X) |
| 810 | mock.x = 'foo' |
| 811 | |
| 812 | mock = Mock(spec_set=X) |
| 813 | def set_attr(): |
| 814 | mock.x = 'foo' |
| 815 | |
| 816 | mock.y = 'foo' |
| 817 | self.assertRaises(AttributeError, set_attr) |
| 818 | |
| 819 | |
| 820 | def test_copy(self): |
| 821 | current = sys.getrecursionlimit() |
| 822 | self.addCleanup(sys.setrecursionlimit, current) |
| 823 | |
| 824 | # can't use sys.maxint as this doesn't exist in Python 3 |
| 825 | sys.setrecursionlimit(int(10e8)) |
| 826 | # this segfaults without the fix in place |
| 827 | copy.copy(Mock()) |
| 828 | |
| 829 | |
| 830 | def test_subclass_with_properties(self): |
| 831 | class SubClass(Mock): |
| 832 | def _get(self): |
| 833 | return 3 |
| 834 | def _set(self, value): |
| 835 | raise NameError('strange error') |
| 836 | some_attribute = property(_get, _set) |
| 837 | |
| 838 | s = SubClass(spec_set=SubClass) |
| 839 | self.assertEqual(s.some_attribute, 3) |
| 840 | |
| 841 | def test(): |
| 842 | s.some_attribute = 3 |
| 843 | self.assertRaises(NameError, test) |
| 844 | |
| 845 | def test(): |
| 846 | s.foo = 'bar' |
| 847 | self.assertRaises(AttributeError, test) |
| 848 | |
| 849 | |
| 850 | def test_setting_call(self): |
| 851 | mock = Mock() |
| 852 | def __call__(self, a): |
| 853 | return self._mock_call(a) |
| 854 | |
| 855 | type(mock).__call__ = __call__ |
| 856 | mock('one') |
| 857 | mock.assert_called_with('one') |
| 858 | |
| 859 | self.assertRaises(TypeError, mock, 'one', 'two') |
| 860 | |
| 861 | |
| 862 | def test_dir(self): |
| 863 | mock = Mock() |
| 864 | attrs = set(dir(mock)) |
| 865 | type_attrs = set([m for m in dir(Mock) if not m.startswith('_')]) |
| 866 | |
| 867 | # all public attributes from the type are included |
| 868 | self.assertEqual(set(), type_attrs - attrs) |
| 869 | |
| 870 | # creates these attributes |
| 871 | mock.a, mock.b |
| 872 | self.assertIn('a', dir(mock)) |
| 873 | self.assertIn('b', dir(mock)) |
| 874 | |
| 875 | # instance attributes |
| 876 | mock.c = mock.d = None |
| 877 | self.assertIn('c', dir(mock)) |
| 878 | self.assertIn('d', dir(mock)) |
| 879 | |
| 880 | # magic methods |
| 881 | mock.__iter__ = lambda s: iter([]) |
| 882 | self.assertIn('__iter__', dir(mock)) |
| 883 | |
| 884 | |
| 885 | def test_dir_from_spec(self): |
| 886 | mock = Mock(spec=unittest.TestCase) |
| 887 | testcase_attrs = set(dir(unittest.TestCase)) |
| 888 | attrs = set(dir(mock)) |
| 889 | |
| 890 | # all attributes from the spec are included |
| 891 | self.assertEqual(set(), testcase_attrs - attrs) |
| 892 | |
| 893 | # shadow a sys attribute |
| 894 | mock.version = 3 |
| 895 | self.assertEqual(dir(mock).count('version'), 1) |
| 896 | |
| 897 | |
| 898 | def test_filter_dir(self): |
| 899 | patcher = patch.object(mock, 'FILTER_DIR', False) |
| 900 | patcher.start() |
| 901 | try: |
| 902 | attrs = set(dir(Mock())) |
| 903 | type_attrs = set(dir(Mock)) |
| 904 | |
| 905 | # ALL attributes from the type are included |
| 906 | self.assertEqual(set(), type_attrs - attrs) |
| 907 | finally: |
| 908 | patcher.stop() |
| 909 | |
| 910 | |
Mario Corchero | 0df635c | 2019-04-30 19:56:36 +0100 | [diff] [blame] | 911 | def test_dir_does_not_include_deleted_attributes(self): |
| 912 | mock = Mock() |
| 913 | mock.child.return_value = 1 |
| 914 | |
| 915 | self.assertIn('child', dir(mock)) |
| 916 | del mock.child |
| 917 | self.assertNotIn('child', dir(mock)) |
| 918 | |
| 919 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 920 | def test_configure_mock(self): |
| 921 | mock = Mock(foo='bar') |
| 922 | self.assertEqual(mock.foo, 'bar') |
| 923 | |
| 924 | mock = MagicMock(foo='bar') |
| 925 | self.assertEqual(mock.foo, 'bar') |
| 926 | |
| 927 | kwargs = {'side_effect': KeyError, 'foo.bar.return_value': 33, |
| 928 | 'foo': MagicMock()} |
| 929 | mock = Mock(**kwargs) |
| 930 | self.assertRaises(KeyError, mock) |
| 931 | self.assertEqual(mock.foo.bar(), 33) |
| 932 | self.assertIsInstance(mock.foo, MagicMock) |
| 933 | |
| 934 | mock = Mock() |
| 935 | mock.configure_mock(**kwargs) |
| 936 | self.assertRaises(KeyError, mock) |
| 937 | self.assertEqual(mock.foo.bar(), 33) |
| 938 | self.assertIsInstance(mock.foo, MagicMock) |
| 939 | |
| 940 | |
| 941 | def assertRaisesWithMsg(self, exception, message, func, *args, **kwargs): |
| 942 | # needed because assertRaisesRegex doesn't work easily with newlines |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 943 | with self.assertRaises(exception) as context: |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 944 | func(*args, **kwargs) |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 945 | msg = str(context.exception) |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 946 | self.assertEqual(msg, message) |
| 947 | |
| 948 | |
| 949 | def test_assert_called_with_failure_message(self): |
| 950 | mock = NonCallableMock() |
| 951 | |
Susan Su | 2bdd585 | 2019-02-13 18:22:29 -0800 | [diff] [blame] | 952 | actual = 'not called.' |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 953 | expected = "mock(1, '2', 3, bar='foo')" |
Susan Su | 2bdd585 | 2019-02-13 18:22:29 -0800 | [diff] [blame] | 954 | message = 'expected call not found.\nExpected: %s\nActual: %s' |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 955 | self.assertRaisesWithMsg( |
Susan Su | 2bdd585 | 2019-02-13 18:22:29 -0800 | [diff] [blame] | 956 | AssertionError, message % (expected, actual), |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 957 | mock.assert_called_with, 1, '2', 3, bar='foo' |
| 958 | ) |
| 959 | |
| 960 | mock.foo(1, '2', 3, foo='foo') |
| 961 | |
| 962 | |
| 963 | asserters = [ |
| 964 | mock.foo.assert_called_with, mock.foo.assert_called_once_with |
| 965 | ] |
| 966 | for meth in asserters: |
| 967 | actual = "foo(1, '2', 3, foo='foo')" |
| 968 | expected = "foo(1, '2', 3, bar='foo')" |
Susan Su | 2bdd585 | 2019-02-13 18:22:29 -0800 | [diff] [blame] | 969 | message = 'expected call not found.\nExpected: %s\nActual: %s' |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 970 | self.assertRaisesWithMsg( |
| 971 | AssertionError, message % (expected, actual), |
| 972 | meth, 1, '2', 3, bar='foo' |
| 973 | ) |
| 974 | |
| 975 | # just kwargs |
| 976 | for meth in asserters: |
| 977 | actual = "foo(1, '2', 3, foo='foo')" |
| 978 | expected = "foo(bar='foo')" |
Susan Su | 2bdd585 | 2019-02-13 18:22:29 -0800 | [diff] [blame] | 979 | message = 'expected call not found.\nExpected: %s\nActual: %s' |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 980 | self.assertRaisesWithMsg( |
| 981 | AssertionError, message % (expected, actual), |
| 982 | meth, bar='foo' |
| 983 | ) |
| 984 | |
| 985 | # just args |
| 986 | for meth in asserters: |
| 987 | actual = "foo(1, '2', 3, foo='foo')" |
| 988 | expected = "foo(1, 2, 3)" |
Susan Su | 2bdd585 | 2019-02-13 18:22:29 -0800 | [diff] [blame] | 989 | message = 'expected call not found.\nExpected: %s\nActual: %s' |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 990 | self.assertRaisesWithMsg( |
| 991 | AssertionError, message % (expected, actual), |
| 992 | meth, 1, 2, 3 |
| 993 | ) |
| 994 | |
| 995 | # empty |
| 996 | for meth in asserters: |
| 997 | actual = "foo(1, '2', 3, foo='foo')" |
| 998 | expected = "foo()" |
Susan Su | 2bdd585 | 2019-02-13 18:22:29 -0800 | [diff] [blame] | 999 | message = 'expected call not found.\nExpected: %s\nActual: %s' |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 1000 | self.assertRaisesWithMsg( |
| 1001 | AssertionError, message % (expected, actual), meth |
| 1002 | ) |
| 1003 | |
| 1004 | |
| 1005 | def test_mock_calls(self): |
| 1006 | mock = MagicMock() |
| 1007 | |
| 1008 | # need to do this because MagicMock.mock_calls used to just return |
| 1009 | # a MagicMock which also returned a MagicMock when __eq__ was called |
| 1010 | self.assertIs(mock.mock_calls == [], True) |
| 1011 | |
| 1012 | mock = MagicMock() |
| 1013 | mock() |
| 1014 | expected = [('', (), {})] |
| 1015 | self.assertEqual(mock.mock_calls, expected) |
| 1016 | |
| 1017 | mock.foo() |
| 1018 | expected.append(call.foo()) |
| 1019 | self.assertEqual(mock.mock_calls, expected) |
| 1020 | # intermediate mock_calls work too |
| 1021 | self.assertEqual(mock.foo.mock_calls, [('', (), {})]) |
| 1022 | |
| 1023 | mock = MagicMock() |
| 1024 | mock().foo(1, 2, 3, a=4, b=5) |
| 1025 | expected = [ |
| 1026 | ('', (), {}), ('().foo', (1, 2, 3), dict(a=4, b=5)) |
| 1027 | ] |
| 1028 | self.assertEqual(mock.mock_calls, expected) |
| 1029 | self.assertEqual(mock.return_value.foo.mock_calls, |
| 1030 | [('', (1, 2, 3), dict(a=4, b=5))]) |
| 1031 | self.assertEqual(mock.return_value.mock_calls, |
| 1032 | [('foo', (1, 2, 3), dict(a=4, b=5))]) |
| 1033 | |
| 1034 | mock = MagicMock() |
| 1035 | mock().foo.bar().baz() |
| 1036 | expected = [ |
| 1037 | ('', (), {}), ('().foo.bar', (), {}), |
| 1038 | ('().foo.bar().baz', (), {}) |
| 1039 | ] |
| 1040 | self.assertEqual(mock.mock_calls, expected) |
| 1041 | self.assertEqual(mock().mock_calls, |
| 1042 | call.foo.bar().baz().call_list()) |
| 1043 | |
| 1044 | for kwargs in dict(), dict(name='bar'): |
| 1045 | mock = MagicMock(**kwargs) |
| 1046 | int(mock.foo) |
| 1047 | expected = [('foo.__int__', (), {})] |
| 1048 | self.assertEqual(mock.mock_calls, expected) |
| 1049 | |
| 1050 | mock = MagicMock(**kwargs) |
| 1051 | mock.a()() |
| 1052 | expected = [('a', (), {}), ('a()', (), {})] |
| 1053 | self.assertEqual(mock.mock_calls, expected) |
| 1054 | self.assertEqual(mock.a().mock_calls, [call()]) |
| 1055 | |
| 1056 | mock = MagicMock(**kwargs) |
| 1057 | mock(1)(2)(3) |
| 1058 | self.assertEqual(mock.mock_calls, call(1)(2)(3).call_list()) |
| 1059 | self.assertEqual(mock().mock_calls, call(2)(3).call_list()) |
| 1060 | self.assertEqual(mock()().mock_calls, call(3).call_list()) |
| 1061 | |
| 1062 | mock = MagicMock(**kwargs) |
| 1063 | mock(1)(2)(3).a.b.c(4) |
| 1064 | self.assertEqual(mock.mock_calls, |
| 1065 | call(1)(2)(3).a.b.c(4).call_list()) |
| 1066 | self.assertEqual(mock().mock_calls, |
| 1067 | call(2)(3).a.b.c(4).call_list()) |
| 1068 | self.assertEqual(mock()().mock_calls, |
| 1069 | call(3).a.b.c(4).call_list()) |
| 1070 | |
| 1071 | mock = MagicMock(**kwargs) |
| 1072 | int(mock().foo.bar().baz()) |
| 1073 | last_call = ('().foo.bar().baz().__int__', (), {}) |
| 1074 | self.assertEqual(mock.mock_calls[-1], last_call) |
| 1075 | self.assertEqual(mock().mock_calls, |
| 1076 | call.foo.bar().baz().__int__().call_list()) |
| 1077 | self.assertEqual(mock().foo.bar().mock_calls, |
| 1078 | call.baz().__int__().call_list()) |
| 1079 | self.assertEqual(mock().foo.bar().baz.mock_calls, |
| 1080 | call().__int__().call_list()) |
| 1081 | |
| 1082 | |
Chris Withers | 8ca0fa9 | 2018-12-03 21:31:37 +0000 | [diff] [blame] | 1083 | def test_child_mock_call_equal(self): |
| 1084 | m = Mock() |
| 1085 | result = m() |
| 1086 | result.wibble() |
| 1087 | # parent looks like this: |
| 1088 | self.assertEqual(m.mock_calls, [call(), call().wibble()]) |
| 1089 | # but child should look like this: |
| 1090 | self.assertEqual(result.mock_calls, [call.wibble()]) |
| 1091 | |
| 1092 | |
| 1093 | def test_mock_call_not_equal_leaf(self): |
| 1094 | m = Mock() |
| 1095 | m.foo().something() |
| 1096 | self.assertNotEqual(m.mock_calls[1], call.foo().different()) |
| 1097 | self.assertEqual(m.mock_calls[0], call.foo()) |
| 1098 | |
| 1099 | |
| 1100 | def test_mock_call_not_equal_non_leaf(self): |
| 1101 | m = Mock() |
| 1102 | m.foo().bar() |
| 1103 | self.assertNotEqual(m.mock_calls[1], call.baz().bar()) |
| 1104 | self.assertNotEqual(m.mock_calls[0], call.baz()) |
| 1105 | |
| 1106 | |
| 1107 | def test_mock_call_not_equal_non_leaf_params_different(self): |
| 1108 | m = Mock() |
| 1109 | m.foo(x=1).bar() |
| 1110 | # This isn't ideal, but there's no way to fix it without breaking backwards compatibility: |
| 1111 | self.assertEqual(m.mock_calls[1], call.foo(x=2).bar()) |
| 1112 | |
| 1113 | |
| 1114 | def test_mock_call_not_equal_non_leaf_attr(self): |
| 1115 | m = Mock() |
| 1116 | m.foo.bar() |
| 1117 | self.assertNotEqual(m.mock_calls[0], call.baz.bar()) |
| 1118 | |
| 1119 | |
| 1120 | def test_mock_call_not_equal_non_leaf_call_versus_attr(self): |
| 1121 | m = Mock() |
| 1122 | m.foo.bar() |
| 1123 | self.assertNotEqual(m.mock_calls[0], call.foo().bar()) |
| 1124 | |
| 1125 | |
| 1126 | def test_mock_call_repr(self): |
| 1127 | m = Mock() |
| 1128 | m.foo().bar().baz.bob() |
| 1129 | self.assertEqual(repr(m.mock_calls[0]), 'call.foo()') |
| 1130 | self.assertEqual(repr(m.mock_calls[1]), 'call.foo().bar()') |
| 1131 | self.assertEqual(repr(m.mock_calls[2]), 'call.foo().bar().baz.bob()') |
| 1132 | |
| 1133 | |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 1134 | def test_mock_call_repr_loop(self): |
| 1135 | m = Mock() |
| 1136 | m.foo = m |
| 1137 | repr(m.foo()) |
| 1138 | self.assertRegex(repr(m.foo()), r"<Mock name='mock\(\)' id='\d+'>") |
| 1139 | |
| 1140 | |
| 1141 | def test_mock_calls_contains(self): |
| 1142 | m = Mock() |
| 1143 | self.assertFalse([call()] in m.mock_calls) |
| 1144 | |
| 1145 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 1146 | def test_subclassing(self): |
| 1147 | class Subclass(Mock): |
| 1148 | pass |
| 1149 | |
| 1150 | mock = Subclass() |
| 1151 | self.assertIsInstance(mock.foo, Subclass) |
| 1152 | self.assertIsInstance(mock(), Subclass) |
| 1153 | |
| 1154 | class Subclass(Mock): |
| 1155 | def _get_child_mock(self, **kwargs): |
| 1156 | return Mock(**kwargs) |
| 1157 | |
| 1158 | mock = Subclass() |
| 1159 | self.assertNotIsInstance(mock.foo, Subclass) |
| 1160 | self.assertNotIsInstance(mock(), Subclass) |
| 1161 | |
| 1162 | |
| 1163 | def test_arg_lists(self): |
| 1164 | mocks = [ |
| 1165 | Mock(), |
| 1166 | MagicMock(), |
| 1167 | NonCallableMock(), |
| 1168 | NonCallableMagicMock() |
| 1169 | ] |
| 1170 | |
| 1171 | def assert_attrs(mock): |
| 1172 | names = 'call_args_list', 'method_calls', 'mock_calls' |
| 1173 | for name in names: |
| 1174 | attr = getattr(mock, name) |
| 1175 | self.assertIsInstance(attr, _CallList) |
| 1176 | self.assertIsInstance(attr, list) |
| 1177 | self.assertEqual(attr, []) |
| 1178 | |
| 1179 | for mock in mocks: |
| 1180 | assert_attrs(mock) |
| 1181 | |
| 1182 | if callable(mock): |
| 1183 | mock() |
| 1184 | mock(1, 2) |
| 1185 | mock(a=3) |
| 1186 | |
| 1187 | mock.reset_mock() |
| 1188 | assert_attrs(mock) |
| 1189 | |
| 1190 | mock.foo() |
| 1191 | mock.foo.bar(1, a=3) |
| 1192 | mock.foo(1).bar().baz(3) |
| 1193 | |
| 1194 | mock.reset_mock() |
| 1195 | assert_attrs(mock) |
| 1196 | |
| 1197 | |
| 1198 | def test_call_args_two_tuple(self): |
| 1199 | mock = Mock() |
| 1200 | mock(1, a=3) |
| 1201 | mock(2, b=4) |
| 1202 | |
| 1203 | self.assertEqual(len(mock.call_args), 2) |
Kumar Akshay | b0df45e | 2019-03-22 13:40:40 +0530 | [diff] [blame] | 1204 | self.assertEqual(mock.call_args.args, (2,)) |
| 1205 | self.assertEqual(mock.call_args.kwargs, dict(b=4)) |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 1206 | |
| 1207 | expected_list = [((1,), dict(a=3)), ((2,), dict(b=4))] |
| 1208 | for expected, call_args in zip(expected_list, mock.call_args_list): |
| 1209 | self.assertEqual(len(call_args), 2) |
| 1210 | self.assertEqual(expected[0], call_args[0]) |
| 1211 | self.assertEqual(expected[1], call_args[1]) |
| 1212 | |
| 1213 | |
| 1214 | def test_side_effect_iterator(self): |
| 1215 | mock = Mock(side_effect=iter([1, 2, 3])) |
| 1216 | self.assertEqual([mock(), mock(), mock()], [1, 2, 3]) |
| 1217 | self.assertRaises(StopIteration, mock) |
| 1218 | |
| 1219 | mock = MagicMock(side_effect=['a', 'b', 'c']) |
| 1220 | self.assertEqual([mock(), mock(), mock()], ['a', 'b', 'c']) |
| 1221 | self.assertRaises(StopIteration, mock) |
| 1222 | |
| 1223 | mock = Mock(side_effect='ghi') |
| 1224 | self.assertEqual([mock(), mock(), mock()], ['g', 'h', 'i']) |
| 1225 | self.assertRaises(StopIteration, mock) |
| 1226 | |
| 1227 | class Foo(object): |
| 1228 | pass |
| 1229 | mock = MagicMock(side_effect=Foo) |
| 1230 | self.assertIsInstance(mock(), Foo) |
| 1231 | |
| 1232 | mock = Mock(side_effect=Iter()) |
| 1233 | self.assertEqual([mock(), mock(), mock(), mock()], |
| 1234 | ['this', 'is', 'an', 'iter']) |
| 1235 | self.assertRaises(StopIteration, mock) |
| 1236 | |
| 1237 | |
Michael Foord | 2cd4873 | 2012-04-21 15:52:11 +0100 | [diff] [blame] | 1238 | def test_side_effect_iterator_exceptions(self): |
| 1239 | for Klass in Mock, MagicMock: |
| 1240 | iterable = (ValueError, 3, KeyError, 6) |
| 1241 | m = Klass(side_effect=iterable) |
| 1242 | self.assertRaises(ValueError, m) |
| 1243 | self.assertEqual(m(), 3) |
| 1244 | self.assertRaises(KeyError, m) |
| 1245 | self.assertEqual(m(), 6) |
| 1246 | |
| 1247 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 1248 | def test_side_effect_setting_iterator(self): |
| 1249 | mock = Mock() |
| 1250 | mock.side_effect = iter([1, 2, 3]) |
| 1251 | self.assertEqual([mock(), mock(), mock()], [1, 2, 3]) |
| 1252 | self.assertRaises(StopIteration, mock) |
| 1253 | side_effect = mock.side_effect |
| 1254 | self.assertIsInstance(side_effect, type(iter([]))) |
| 1255 | |
| 1256 | mock.side_effect = ['a', 'b', 'c'] |
| 1257 | self.assertEqual([mock(), mock(), mock()], ['a', 'b', 'c']) |
| 1258 | self.assertRaises(StopIteration, mock) |
| 1259 | side_effect = mock.side_effect |
| 1260 | self.assertIsInstance(side_effect, type(iter([]))) |
| 1261 | |
| 1262 | this_iter = Iter() |
| 1263 | mock.side_effect = this_iter |
| 1264 | self.assertEqual([mock(), mock(), mock(), mock()], |
| 1265 | ['this', 'is', 'an', 'iter']) |
| 1266 | self.assertRaises(StopIteration, mock) |
| 1267 | self.assertIs(mock.side_effect, this_iter) |
| 1268 | |
Andrew Svetlov | 8b2cd75 | 2013-04-07 16:42:24 +0300 | [diff] [blame] | 1269 | def test_side_effect_iterator_default(self): |
| 1270 | mock = Mock(return_value=2) |
| 1271 | mock.side_effect = iter([1, DEFAULT]) |
| 1272 | self.assertEqual([mock(), mock()], [1, 2]) |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 1273 | |
| 1274 | def test_assert_has_calls_any_order(self): |
| 1275 | mock = Mock() |
| 1276 | mock(1, 2) |
| 1277 | mock(a=3) |
| 1278 | mock(3, 4) |
| 1279 | mock(b=6) |
| 1280 | mock(b=6) |
| 1281 | |
| 1282 | kalls = [ |
| 1283 | call(1, 2), ({'a': 3},), |
| 1284 | ((3, 4),), ((), {'a': 3}), |
| 1285 | ('', (1, 2)), ('', {'a': 3}), |
| 1286 | ('', (1, 2), {}), ('', (), {'a': 3}) |
| 1287 | ] |
| 1288 | for kall in kalls: |
| 1289 | mock.assert_has_calls([kall], any_order=True) |
| 1290 | |
| 1291 | for kall in call(1, '2'), call(b=3), call(), 3, None, 'foo': |
| 1292 | self.assertRaises( |
| 1293 | AssertionError, mock.assert_has_calls, |
| 1294 | [kall], any_order=True |
| 1295 | ) |
| 1296 | |
| 1297 | kall_lists = [ |
| 1298 | [call(1, 2), call(b=6)], |
| 1299 | [call(3, 4), call(1, 2)], |
| 1300 | [call(b=6), call(b=6)], |
| 1301 | ] |
| 1302 | |
| 1303 | for kall_list in kall_lists: |
| 1304 | mock.assert_has_calls(kall_list, any_order=True) |
| 1305 | |
| 1306 | kall_lists = [ |
| 1307 | [call(b=6), call(b=6), call(b=6)], |
| 1308 | [call(1, 2), call(1, 2)], |
| 1309 | [call(3, 4), call(1, 2), call(5, 7)], |
| 1310 | [call(b=6), call(3, 4), call(b=6), call(1, 2), call(b=6)], |
| 1311 | ] |
| 1312 | for kall_list in kall_lists: |
| 1313 | self.assertRaises( |
| 1314 | AssertionError, mock.assert_has_calls, |
| 1315 | kall_list, any_order=True |
| 1316 | ) |
| 1317 | |
| 1318 | def test_assert_has_calls(self): |
| 1319 | kalls1 = [ |
| 1320 | call(1, 2), ({'a': 3},), |
| 1321 | ((3, 4),), call(b=6), |
| 1322 | ('', (1,), {'b': 6}), |
| 1323 | ] |
| 1324 | kalls2 = [call.foo(), call.bar(1)] |
| 1325 | kalls2.extend(call.spam().baz(a=3).call_list()) |
| 1326 | kalls2.extend(call.bam(set(), foo={}).fish([1]).call_list()) |
| 1327 | |
| 1328 | mocks = [] |
| 1329 | for mock in Mock(), MagicMock(): |
| 1330 | mock(1, 2) |
| 1331 | mock(a=3) |
| 1332 | mock(3, 4) |
| 1333 | mock(b=6) |
| 1334 | mock(1, b=6) |
| 1335 | mocks.append((mock, kalls1)) |
| 1336 | |
| 1337 | mock = Mock() |
| 1338 | mock.foo() |
| 1339 | mock.bar(1) |
| 1340 | mock.spam().baz(a=3) |
| 1341 | mock.bam(set(), foo={}).fish([1]) |
| 1342 | mocks.append((mock, kalls2)) |
| 1343 | |
| 1344 | for mock, kalls in mocks: |
| 1345 | for i in range(len(kalls)): |
| 1346 | for step in 1, 2, 3: |
| 1347 | these = kalls[i:i+step] |
| 1348 | mock.assert_has_calls(these) |
| 1349 | |
| 1350 | if len(these) > 1: |
| 1351 | self.assertRaises( |
| 1352 | AssertionError, |
| 1353 | mock.assert_has_calls, |
| 1354 | list(reversed(these)) |
| 1355 | ) |
| 1356 | |
| 1357 | |
Xtreak | c961278 | 2019-08-29 11:39:01 +0530 | [diff] [blame] | 1358 | def test_assert_has_calls_nested_spec(self): |
| 1359 | class Something: |
| 1360 | |
| 1361 | def __init__(self): pass |
| 1362 | def meth(self, a, b, c, d=None): pass |
| 1363 | |
| 1364 | class Foo: |
| 1365 | |
| 1366 | def __init__(self, a): pass |
| 1367 | def meth1(self, a, b): pass |
| 1368 | |
| 1369 | mock_class = create_autospec(Something) |
| 1370 | |
| 1371 | for m in [mock_class, mock_class()]: |
| 1372 | m.meth(1, 2, 3, d=1) |
| 1373 | m.assert_has_calls([call.meth(1, 2, 3, d=1)]) |
| 1374 | m.assert_has_calls([call.meth(1, 2, 3, 1)]) |
| 1375 | |
| 1376 | mock_class.reset_mock() |
| 1377 | |
| 1378 | for m in [mock_class, mock_class()]: |
| 1379 | self.assertRaises(AssertionError, m.assert_has_calls, [call.Foo()]) |
| 1380 | m.Foo(1).meth1(1, 2) |
| 1381 | m.assert_has_calls([call.Foo(1), call.Foo(1).meth1(1, 2)]) |
| 1382 | m.Foo.assert_has_calls([call(1), call().meth1(1, 2)]) |
| 1383 | |
| 1384 | mock_class.reset_mock() |
| 1385 | |
| 1386 | invalid_calls = [call.meth(1), |
| 1387 | call.non_existent(1), |
| 1388 | call.Foo().non_existent(1), |
| 1389 | call.Foo().meth(1, 2, 3, 4)] |
| 1390 | |
| 1391 | for kall in invalid_calls: |
| 1392 | self.assertRaises(AssertionError, |
| 1393 | mock_class.assert_has_calls, |
| 1394 | [kall] |
| 1395 | ) |
| 1396 | |
| 1397 | |
| 1398 | def test_assert_has_calls_nested_without_spec(self): |
| 1399 | m = MagicMock() |
| 1400 | m().foo().bar().baz() |
| 1401 | m.one().two().three() |
| 1402 | calls = call.one().two().three().call_list() |
| 1403 | m.assert_has_calls(calls) |
| 1404 | |
| 1405 | |
Antoine Pitrou | 5c64df7 | 2013-02-03 00:23:58 +0100 | [diff] [blame] | 1406 | def test_assert_has_calls_with_function_spec(self): |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 1407 | def f(a, b, c, d=None): pass |
Antoine Pitrou | 5c64df7 | 2013-02-03 00:23:58 +0100 | [diff] [blame] | 1408 | |
| 1409 | mock = Mock(spec=f) |
| 1410 | |
| 1411 | mock(1, b=2, c=3) |
| 1412 | mock(4, 5, c=6, d=7) |
| 1413 | mock(10, 11, c=12) |
| 1414 | calls = [ |
| 1415 | ('', (1, 2, 3), {}), |
| 1416 | ('', (4, 5, 6), {'d': 7}), |
| 1417 | ((10, 11, 12), {}), |
| 1418 | ] |
| 1419 | mock.assert_has_calls(calls) |
| 1420 | mock.assert_has_calls(calls, any_order=True) |
| 1421 | mock.assert_has_calls(calls[1:]) |
| 1422 | mock.assert_has_calls(calls[1:], any_order=True) |
| 1423 | mock.assert_has_calls(calls[:-1]) |
| 1424 | mock.assert_has_calls(calls[:-1], any_order=True) |
| 1425 | # Reversed order |
| 1426 | calls = list(reversed(calls)) |
| 1427 | with self.assertRaises(AssertionError): |
| 1428 | mock.assert_has_calls(calls) |
| 1429 | mock.assert_has_calls(calls, any_order=True) |
| 1430 | with self.assertRaises(AssertionError): |
| 1431 | mock.assert_has_calls(calls[1:]) |
| 1432 | mock.assert_has_calls(calls[1:], any_order=True) |
| 1433 | with self.assertRaises(AssertionError): |
| 1434 | mock.assert_has_calls(calls[:-1]) |
| 1435 | mock.assert_has_calls(calls[:-1], any_order=True) |
| 1436 | |
| 1437 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 1438 | def test_assert_any_call(self): |
| 1439 | mock = Mock() |
| 1440 | mock(1, 2) |
| 1441 | mock(a=3) |
| 1442 | mock(1, b=6) |
| 1443 | |
| 1444 | mock.assert_any_call(1, 2) |
| 1445 | mock.assert_any_call(a=3) |
| 1446 | mock.assert_any_call(1, b=6) |
| 1447 | |
| 1448 | self.assertRaises( |
| 1449 | AssertionError, |
| 1450 | mock.assert_any_call |
| 1451 | ) |
| 1452 | self.assertRaises( |
| 1453 | AssertionError, |
| 1454 | mock.assert_any_call, |
| 1455 | 1, 3 |
| 1456 | ) |
| 1457 | self.assertRaises( |
| 1458 | AssertionError, |
| 1459 | mock.assert_any_call, |
| 1460 | a=4 |
| 1461 | ) |
| 1462 | |
| 1463 | |
Antoine Pitrou | 5c64df7 | 2013-02-03 00:23:58 +0100 | [diff] [blame] | 1464 | def test_assert_any_call_with_function_spec(self): |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 1465 | def f(a, b, c, d=None): pass |
Antoine Pitrou | 5c64df7 | 2013-02-03 00:23:58 +0100 | [diff] [blame] | 1466 | |
| 1467 | mock = Mock(spec=f) |
| 1468 | |
| 1469 | mock(1, b=2, c=3) |
| 1470 | mock(4, 5, c=6, d=7) |
| 1471 | mock.assert_any_call(1, 2, 3) |
| 1472 | mock.assert_any_call(a=1, b=2, c=3) |
| 1473 | mock.assert_any_call(4, 5, 6, 7) |
| 1474 | mock.assert_any_call(a=4, b=5, c=6, d=7) |
| 1475 | self.assertRaises(AssertionError, mock.assert_any_call, |
| 1476 | 1, b=3, c=2) |
| 1477 | # Expected call doesn't match the spec's signature |
| 1478 | with self.assertRaises(AssertionError) as cm: |
| 1479 | mock.assert_any_call(e=8) |
| 1480 | self.assertIsInstance(cm.exception.__cause__, TypeError) |
| 1481 | |
| 1482 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 1483 | def test_mock_calls_create_autospec(self): |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 1484 | def f(a, b): pass |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 1485 | obj = Iter() |
| 1486 | obj.f = f |
| 1487 | |
| 1488 | funcs = [ |
| 1489 | create_autospec(f), |
| 1490 | create_autospec(obj).f |
| 1491 | ] |
| 1492 | for func in funcs: |
| 1493 | func(1, 2) |
| 1494 | func(3, 4) |
| 1495 | |
| 1496 | self.assertEqual( |
| 1497 | func.mock_calls, [call(1, 2), call(3, 4)] |
| 1498 | ) |
| 1499 | |
Kushal Das | 484f8a8 | 2014-04-16 01:05:50 +0530 | [diff] [blame] | 1500 | #Issue21222 |
| 1501 | def test_create_autospec_with_name(self): |
| 1502 | m = mock.create_autospec(object(), name='sweet_func') |
| 1503 | self.assertIn('sweet_func', repr(m)) |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 1504 | |
Xtreak | 9b21856 | 2019-04-22 08:00:23 +0530 | [diff] [blame] | 1505 | #Issue23078 |
| 1506 | def test_create_autospec_classmethod_and_staticmethod(self): |
| 1507 | class TestClass: |
| 1508 | @classmethod |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 1509 | def class_method(cls): pass |
Xtreak | 9b21856 | 2019-04-22 08:00:23 +0530 | [diff] [blame] | 1510 | |
| 1511 | @staticmethod |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 1512 | def static_method(): pass |
Xtreak | 9b21856 | 2019-04-22 08:00:23 +0530 | [diff] [blame] | 1513 | for method in ('class_method', 'static_method'): |
| 1514 | with self.subTest(method=method): |
| 1515 | mock_method = mock.create_autospec(getattr(TestClass, method)) |
| 1516 | mock_method() |
| 1517 | mock_method.assert_called_once_with() |
| 1518 | self.assertRaises(TypeError, mock_method, 'extra_arg') |
| 1519 | |
Kushal Das | 8c14534 | 2014-04-16 23:32:21 +0530 | [diff] [blame] | 1520 | #Issue21238 |
| 1521 | def test_mock_unsafe(self): |
| 1522 | m = Mock() |
Zackery Spytz | b9b08cd | 2019-05-08 11:32:24 -0600 | [diff] [blame] | 1523 | msg = "Attributes cannot start with 'assert' or 'assret'" |
| 1524 | with self.assertRaisesRegex(AttributeError, msg): |
Kushal Das | 8c14534 | 2014-04-16 23:32:21 +0530 | [diff] [blame] | 1525 | m.assert_foo_call() |
Zackery Spytz | b9b08cd | 2019-05-08 11:32:24 -0600 | [diff] [blame] | 1526 | with self.assertRaisesRegex(AttributeError, msg): |
Kushal Das | 8c14534 | 2014-04-16 23:32:21 +0530 | [diff] [blame] | 1527 | m.assret_foo_call() |
| 1528 | m = Mock(unsafe=True) |
| 1529 | m.assert_foo_call() |
| 1530 | m.assret_foo_call() |
| 1531 | |
Kushal Das | 8af9db3 | 2014-04-17 01:36:14 +0530 | [diff] [blame] | 1532 | #Issue21262 |
| 1533 | def test_assert_not_called(self): |
| 1534 | m = Mock() |
| 1535 | m.hello.assert_not_called() |
| 1536 | m.hello() |
| 1537 | with self.assertRaises(AssertionError): |
| 1538 | m.hello.assert_not_called() |
| 1539 | |
Petter Strandmark | 47d9424 | 2018-10-28 21:37:10 +0100 | [diff] [blame] | 1540 | def test_assert_not_called_message(self): |
| 1541 | m = Mock() |
| 1542 | m(1, 2) |
| 1543 | self.assertRaisesRegex(AssertionError, |
| 1544 | re.escape("Calls: [call(1, 2)]"), |
| 1545 | m.assert_not_called) |
| 1546 | |
Victor Stinner | 2c2a4e6 | 2016-03-11 22:17:48 +0100 | [diff] [blame] | 1547 | def test_assert_called(self): |
| 1548 | m = Mock() |
| 1549 | with self.assertRaises(AssertionError): |
| 1550 | m.hello.assert_called() |
| 1551 | m.hello() |
| 1552 | m.hello.assert_called() |
| 1553 | |
| 1554 | m.hello() |
| 1555 | m.hello.assert_called() |
| 1556 | |
| 1557 | def test_assert_called_once(self): |
| 1558 | m = Mock() |
| 1559 | with self.assertRaises(AssertionError): |
| 1560 | m.hello.assert_called_once() |
| 1561 | m.hello() |
| 1562 | m.hello.assert_called_once() |
| 1563 | |
| 1564 | m.hello() |
| 1565 | with self.assertRaises(AssertionError): |
| 1566 | m.hello.assert_called_once() |
| 1567 | |
Petter Strandmark | 47d9424 | 2018-10-28 21:37:10 +0100 | [diff] [blame] | 1568 | def test_assert_called_once_message(self): |
| 1569 | m = Mock() |
| 1570 | m(1, 2) |
| 1571 | m(3) |
| 1572 | self.assertRaisesRegex(AssertionError, |
| 1573 | re.escape("Calls: [call(1, 2), call(3)]"), |
| 1574 | m.assert_called_once) |
| 1575 | |
| 1576 | def test_assert_called_once_message_not_called(self): |
| 1577 | m = Mock() |
| 1578 | with self.assertRaises(AssertionError) as e: |
| 1579 | m.assert_called_once() |
| 1580 | self.assertNotIn("Calls:", str(e.exception)) |
| 1581 | |
Xtreak | 9d60706 | 2019-09-09 16:25:22 +0530 | [diff] [blame] | 1582 | #Issue37212 printout of keyword args now preserves the original order |
| 1583 | def test_ordered_call_signature(self): |
Kushal Das | 047f14c | 2014-06-09 13:45:56 +0530 | [diff] [blame] | 1584 | m = Mock() |
| 1585 | m.hello(name='hello', daddy='hero') |
Xtreak | 9d60706 | 2019-09-09 16:25:22 +0530 | [diff] [blame] | 1586 | text = "call(name='hello', daddy='hero')" |
R David Murray | 130a566 | 2014-06-11 17:09:43 -0400 | [diff] [blame] | 1587 | self.assertEqual(repr(m.hello.call_args), text) |
Kushal Das | 8af9db3 | 2014-04-17 01:36:14 +0530 | [diff] [blame] | 1588 | |
Kushal Das | a37b958 | 2014-09-16 18:33:37 +0530 | [diff] [blame] | 1589 | #Issue21270 overrides tuple methods for mock.call objects |
| 1590 | def test_override_tuple_methods(self): |
| 1591 | c = call.count() |
| 1592 | i = call.index(132,'hello') |
| 1593 | m = Mock() |
| 1594 | m.count() |
| 1595 | m.index(132,"hello") |
| 1596 | self.assertEqual(m.method_calls[0], c) |
| 1597 | self.assertEqual(m.method_calls[1], i) |
| 1598 | |
Kushal Das | 9cd39a1 | 2016-06-02 10:20:16 -0700 | [diff] [blame] | 1599 | def test_reset_return_sideeffect(self): |
| 1600 | m = Mock(return_value=10, side_effect=[2,3]) |
| 1601 | m.reset_mock(return_value=True, side_effect=True) |
| 1602 | self.assertIsInstance(m.return_value, Mock) |
| 1603 | self.assertEqual(m.side_effect, None) |
| 1604 | |
| 1605 | def test_reset_return(self): |
| 1606 | m = Mock(return_value=10, side_effect=[2,3]) |
| 1607 | m.reset_mock(return_value=True) |
| 1608 | self.assertIsInstance(m.return_value, Mock) |
| 1609 | self.assertNotEqual(m.side_effect, None) |
| 1610 | |
| 1611 | def test_reset_sideeffect(self): |
| 1612 | m = Mock(return_value=10, side_effect=[2,3]) |
| 1613 | m.reset_mock(side_effect=True) |
| 1614 | self.assertEqual(m.return_value, 10) |
| 1615 | self.assertEqual(m.side_effect, None) |
| 1616 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 1617 | def test_mock_add_spec(self): |
| 1618 | class _One(object): |
| 1619 | one = 1 |
| 1620 | class _Two(object): |
| 1621 | two = 2 |
| 1622 | class Anything(object): |
| 1623 | one = two = three = 'four' |
| 1624 | |
| 1625 | klasses = [ |
| 1626 | Mock, MagicMock, NonCallableMock, NonCallableMagicMock |
| 1627 | ] |
| 1628 | for Klass in list(klasses): |
| 1629 | klasses.append(lambda K=Klass: K(spec=Anything)) |
| 1630 | klasses.append(lambda K=Klass: K(spec_set=Anything)) |
| 1631 | |
| 1632 | for Klass in klasses: |
| 1633 | for kwargs in dict(), dict(spec_set=True): |
| 1634 | mock = Klass() |
| 1635 | #no error |
| 1636 | mock.one, mock.two, mock.three |
| 1637 | |
| 1638 | for One, Two in [(_One, _Two), (['one'], ['two'])]: |
| 1639 | for kwargs in dict(), dict(spec_set=True): |
| 1640 | mock.mock_add_spec(One, **kwargs) |
| 1641 | |
| 1642 | mock.one |
| 1643 | self.assertRaises( |
| 1644 | AttributeError, getattr, mock, 'two' |
| 1645 | ) |
| 1646 | self.assertRaises( |
| 1647 | AttributeError, getattr, mock, 'three' |
| 1648 | ) |
| 1649 | if 'spec_set' in kwargs: |
| 1650 | self.assertRaises( |
| 1651 | AttributeError, setattr, mock, 'three', None |
| 1652 | ) |
| 1653 | |
| 1654 | mock.mock_add_spec(Two, **kwargs) |
| 1655 | self.assertRaises( |
| 1656 | AttributeError, getattr, mock, 'one' |
| 1657 | ) |
| 1658 | mock.two |
| 1659 | self.assertRaises( |
| 1660 | AttributeError, getattr, mock, 'three' |
| 1661 | ) |
| 1662 | if 'spec_set' in kwargs: |
| 1663 | self.assertRaises( |
| 1664 | AttributeError, setattr, mock, 'three', None |
| 1665 | ) |
| 1666 | # note that creating a mock, setting an instance attribute, and |
| 1667 | # *then* setting a spec doesn't work. Not the intended use case |
| 1668 | |
| 1669 | |
| 1670 | def test_mock_add_spec_magic_methods(self): |
| 1671 | for Klass in MagicMock, NonCallableMagicMock: |
| 1672 | mock = Klass() |
| 1673 | int(mock) |
| 1674 | |
| 1675 | mock.mock_add_spec(object) |
| 1676 | self.assertRaises(TypeError, int, mock) |
| 1677 | |
| 1678 | mock = Klass() |
| 1679 | mock['foo'] |
| 1680 | mock.__int__.return_value =4 |
| 1681 | |
| 1682 | mock.mock_add_spec(int) |
| 1683 | self.assertEqual(int(mock), 4) |
| 1684 | self.assertRaises(TypeError, lambda: mock['foo']) |
| 1685 | |
| 1686 | |
| 1687 | def test_adding_child_mock(self): |
Lisa Roach | 77b3b77 | 2019-05-20 09:19:53 -0700 | [diff] [blame] | 1688 | for Klass in (NonCallableMock, Mock, MagicMock, NonCallableMagicMock, |
| 1689 | AsyncMock): |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 1690 | mock = Klass() |
| 1691 | |
| 1692 | mock.foo = Mock() |
| 1693 | mock.foo() |
| 1694 | |
| 1695 | self.assertEqual(mock.method_calls, [call.foo()]) |
| 1696 | self.assertEqual(mock.mock_calls, [call.foo()]) |
| 1697 | |
| 1698 | mock = Klass() |
| 1699 | mock.bar = Mock(name='name') |
| 1700 | mock.bar() |
| 1701 | self.assertEqual(mock.method_calls, []) |
| 1702 | self.assertEqual(mock.mock_calls, []) |
| 1703 | |
| 1704 | # mock with an existing _new_parent but no name |
| 1705 | mock = Klass() |
| 1706 | mock.baz = MagicMock()() |
| 1707 | mock.baz() |
| 1708 | self.assertEqual(mock.method_calls, []) |
| 1709 | self.assertEqual(mock.mock_calls, []) |
| 1710 | |
| 1711 | |
| 1712 | def test_adding_return_value_mock(self): |
| 1713 | for Klass in Mock, MagicMock: |
| 1714 | mock = Klass() |
| 1715 | mock.return_value = MagicMock() |
| 1716 | |
| 1717 | mock()() |
| 1718 | self.assertEqual(mock.mock_calls, [call(), call()()]) |
| 1719 | |
| 1720 | |
| 1721 | def test_manager_mock(self): |
| 1722 | class Foo(object): |
| 1723 | one = 'one' |
| 1724 | two = 'two' |
| 1725 | manager = Mock() |
| 1726 | p1 = patch.object(Foo, 'one') |
| 1727 | p2 = patch.object(Foo, 'two') |
| 1728 | |
| 1729 | mock_one = p1.start() |
| 1730 | self.addCleanup(p1.stop) |
| 1731 | mock_two = p2.start() |
| 1732 | self.addCleanup(p2.stop) |
| 1733 | |
| 1734 | manager.attach_mock(mock_one, 'one') |
| 1735 | manager.attach_mock(mock_two, 'two') |
| 1736 | |
| 1737 | Foo.two() |
| 1738 | Foo.one() |
| 1739 | |
| 1740 | self.assertEqual(manager.mock_calls, [call.two(), call.one()]) |
| 1741 | |
| 1742 | |
| 1743 | def test_magic_methods_mock_calls(self): |
| 1744 | for Klass in Mock, MagicMock: |
| 1745 | m = Klass() |
| 1746 | m.__int__ = Mock(return_value=3) |
| 1747 | m.__float__ = MagicMock(return_value=3.0) |
| 1748 | int(m) |
| 1749 | float(m) |
| 1750 | |
| 1751 | self.assertEqual(m.mock_calls, [call.__int__(), call.__float__()]) |
| 1752 | self.assertEqual(m.method_calls, []) |
| 1753 | |
Robert Collins | 5329aaa | 2015-07-17 20:08:45 +1200 | [diff] [blame] | 1754 | def test_mock_open_reuse_issue_21750(self): |
| 1755 | mocked_open = mock.mock_open(read_data='data') |
| 1756 | f1 = mocked_open('a-name') |
Robert Collins | ca647ef | 2015-07-24 03:48:20 +1200 | [diff] [blame] | 1757 | f1_data = f1.read() |
Robert Collins | 5329aaa | 2015-07-17 20:08:45 +1200 | [diff] [blame] | 1758 | f2 = mocked_open('another-name') |
Robert Collins | ca647ef | 2015-07-24 03:48:20 +1200 | [diff] [blame] | 1759 | f2_data = f2.read() |
| 1760 | self.assertEqual(f1_data, f2_data) |
| 1761 | |
Tony Flury | 2087023 | 2018-09-12 23:21:16 +0100 | [diff] [blame] | 1762 | def test_mock_open_dunder_iter_issue(self): |
| 1763 | # Test dunder_iter method generates the expected result and |
| 1764 | # consumes the iterator. |
| 1765 | mocked_open = mock.mock_open(read_data='Remarkable\nNorwegian Blue') |
| 1766 | f1 = mocked_open('a-name') |
| 1767 | lines = [line for line in f1] |
| 1768 | self.assertEqual(lines[0], 'Remarkable\n') |
| 1769 | self.assertEqual(lines[1], 'Norwegian Blue') |
| 1770 | self.assertEqual(list(f1), []) |
| 1771 | |
Damien Nadé | 394119a | 2019-05-23 12:03:25 +0200 | [diff] [blame] | 1772 | def test_mock_open_using_next(self): |
| 1773 | mocked_open = mock.mock_open(read_data='1st line\n2nd line\n3rd line') |
| 1774 | f1 = mocked_open('a-name') |
| 1775 | line1 = next(f1) |
| 1776 | line2 = f1.__next__() |
| 1777 | lines = [line for line in f1] |
| 1778 | self.assertEqual(line1, '1st line\n') |
| 1779 | self.assertEqual(line2, '2nd line\n') |
| 1780 | self.assertEqual(lines[0], '3rd line') |
| 1781 | self.assertEqual(list(f1), []) |
| 1782 | with self.assertRaises(StopIteration): |
| 1783 | next(f1) |
| 1784 | |
Robert Collins | ca647ef | 2015-07-24 03:48:20 +1200 | [diff] [blame] | 1785 | def test_mock_open_write(self): |
| 1786 | # Test exception in file writing write() |
| 1787 | mock_namedtemp = mock.mock_open(mock.MagicMock(name='JLV')) |
| 1788 | with mock.patch('tempfile.NamedTemporaryFile', mock_namedtemp): |
| 1789 | mock_filehandle = mock_namedtemp.return_value |
| 1790 | mock_write = mock_filehandle.write |
| 1791 | mock_write.side_effect = OSError('Test 2 Error') |
| 1792 | def attempt(): |
| 1793 | tempfile.NamedTemporaryFile().write('asd') |
| 1794 | self.assertRaises(OSError, attempt) |
| 1795 | |
| 1796 | def test_mock_open_alter_readline(self): |
| 1797 | mopen = mock.mock_open(read_data='foo\nbarn') |
| 1798 | mopen.return_value.readline.side_effect = lambda *args:'abc' |
| 1799 | first = mopen().readline() |
| 1800 | second = mopen().readline() |
| 1801 | self.assertEqual('abc', first) |
| 1802 | self.assertEqual('abc', second) |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 1803 | |
Robert Collins | 9549a3e | 2016-05-16 15:22:01 +1200 | [diff] [blame] | 1804 | def test_mock_open_after_eof(self): |
| 1805 | # read, readline and readlines should work after end of file. |
| 1806 | _open = mock.mock_open(read_data='foo') |
| 1807 | h = _open('bar') |
| 1808 | h.read() |
| 1809 | self.assertEqual('', h.read()) |
| 1810 | self.assertEqual('', h.read()) |
| 1811 | self.assertEqual('', h.readline()) |
| 1812 | self.assertEqual('', h.readline()) |
| 1813 | self.assertEqual([], h.readlines()) |
| 1814 | self.assertEqual([], h.readlines()) |
| 1815 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 1816 | def test_mock_parents(self): |
| 1817 | for Klass in Mock, MagicMock: |
| 1818 | m = Klass() |
| 1819 | original_repr = repr(m) |
| 1820 | m.return_value = m |
| 1821 | self.assertIs(m(), m) |
| 1822 | self.assertEqual(repr(m), original_repr) |
| 1823 | |
| 1824 | m.reset_mock() |
| 1825 | self.assertIs(m(), m) |
| 1826 | self.assertEqual(repr(m), original_repr) |
| 1827 | |
| 1828 | m = Klass() |
| 1829 | m.b = m.a |
| 1830 | self.assertIn("name='mock.a'", repr(m.b)) |
| 1831 | self.assertIn("name='mock.a'", repr(m.a)) |
| 1832 | m.reset_mock() |
| 1833 | self.assertIn("name='mock.a'", repr(m.b)) |
| 1834 | self.assertIn("name='mock.a'", repr(m.a)) |
| 1835 | |
| 1836 | m = Klass() |
| 1837 | original_repr = repr(m) |
| 1838 | m.a = m() |
| 1839 | m.a.return_value = m |
| 1840 | |
| 1841 | self.assertEqual(repr(m), original_repr) |
| 1842 | self.assertEqual(repr(m.a()), original_repr) |
| 1843 | |
| 1844 | |
| 1845 | def test_attach_mock(self): |
| 1846 | classes = Mock, MagicMock, NonCallableMagicMock, NonCallableMock |
| 1847 | for Klass in classes: |
| 1848 | for Klass2 in classes: |
| 1849 | m = Klass() |
| 1850 | |
| 1851 | m2 = Klass2(name='foo') |
| 1852 | m.attach_mock(m2, 'bar') |
| 1853 | |
| 1854 | self.assertIs(m.bar, m2) |
| 1855 | self.assertIn("name='mock.bar'", repr(m2)) |
| 1856 | |
| 1857 | m.bar.baz(1) |
| 1858 | self.assertEqual(m.mock_calls, [call.bar.baz(1)]) |
| 1859 | self.assertEqual(m.method_calls, [call.bar.baz(1)]) |
| 1860 | |
| 1861 | |
| 1862 | def test_attach_mock_return_value(self): |
| 1863 | classes = Mock, MagicMock, NonCallableMagicMock, NonCallableMock |
| 1864 | for Klass in Mock, MagicMock: |
| 1865 | for Klass2 in classes: |
| 1866 | m = Klass() |
| 1867 | |
| 1868 | m2 = Klass2(name='foo') |
| 1869 | m.attach_mock(m2, 'return_value') |
| 1870 | |
| 1871 | self.assertIs(m(), m2) |
| 1872 | self.assertIn("name='mock()'", repr(m2)) |
| 1873 | |
| 1874 | m2.foo() |
| 1875 | self.assertEqual(m.mock_calls, call().foo().call_list()) |
| 1876 | |
| 1877 | |
Xtreak | 7397cda | 2019-07-22 13:08:22 +0530 | [diff] [blame] | 1878 | def test_attach_mock_patch_autospec(self): |
| 1879 | parent = Mock() |
| 1880 | |
| 1881 | with mock.patch(f'{__name__}.something', autospec=True) as mock_func: |
| 1882 | self.assertEqual(mock_func.mock._extract_mock_name(), 'something') |
| 1883 | parent.attach_mock(mock_func, 'child') |
| 1884 | parent.child(1) |
| 1885 | something(2) |
| 1886 | mock_func(3) |
| 1887 | |
| 1888 | parent_calls = [call.child(1), call.child(2), call.child(3)] |
| 1889 | child_calls = [call(1), call(2), call(3)] |
| 1890 | self.assertEqual(parent.mock_calls, parent_calls) |
| 1891 | self.assertEqual(parent.child.mock_calls, child_calls) |
| 1892 | self.assertEqual(something.mock_calls, child_calls) |
| 1893 | self.assertEqual(mock_func.mock_calls, child_calls) |
| 1894 | self.assertIn('mock.child', repr(parent.child.mock)) |
| 1895 | self.assertEqual(mock_func.mock._extract_mock_name(), 'mock.child') |
| 1896 | |
| 1897 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 1898 | def test_attribute_deletion(self): |
Michael Foord | 468ec34 | 2013-09-15 20:05:19 +1200 | [diff] [blame] | 1899 | for mock in (Mock(), MagicMock(), NonCallableMagicMock(), |
| 1900 | NonCallableMock()): |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 1901 | self.assertTrue(hasattr(mock, 'm')) |
| 1902 | |
| 1903 | del mock.m |
| 1904 | self.assertFalse(hasattr(mock, 'm')) |
| 1905 | |
| 1906 | del mock.f |
| 1907 | self.assertFalse(hasattr(mock, 'f')) |
| 1908 | self.assertRaises(AttributeError, getattr, mock, 'f') |
| 1909 | |
| 1910 | |
Pablo Galindo | 222d303 | 2019-01-21 08:57:46 +0000 | [diff] [blame] | 1911 | def test_mock_does_not_raise_on_repeated_attribute_deletion(self): |
| 1912 | # bpo-20239: Assigning and deleting twice an attribute raises. |
| 1913 | for mock in (Mock(), MagicMock(), NonCallableMagicMock(), |
| 1914 | NonCallableMock()): |
| 1915 | mock.foo = 3 |
| 1916 | self.assertTrue(hasattr(mock, 'foo')) |
| 1917 | self.assertEqual(mock.foo, 3) |
| 1918 | |
| 1919 | del mock.foo |
| 1920 | self.assertFalse(hasattr(mock, 'foo')) |
| 1921 | |
| 1922 | mock.foo = 4 |
| 1923 | self.assertTrue(hasattr(mock, 'foo')) |
| 1924 | self.assertEqual(mock.foo, 4) |
| 1925 | |
| 1926 | del mock.foo |
| 1927 | self.assertFalse(hasattr(mock, 'foo')) |
| 1928 | |
| 1929 | |
| 1930 | def test_mock_raises_when_deleting_nonexistent_attribute(self): |
| 1931 | for mock in (Mock(), MagicMock(), NonCallableMagicMock(), |
| 1932 | NonCallableMock()): |
| 1933 | del mock.foo |
| 1934 | with self.assertRaises(AttributeError): |
| 1935 | del mock.foo |
| 1936 | |
| 1937 | |
Xtreak | edeca92 | 2018-12-01 15:33:54 +0530 | [diff] [blame] | 1938 | def test_reset_mock_does_not_raise_on_attr_deletion(self): |
| 1939 | # bpo-31177: reset_mock should not raise AttributeError when attributes |
| 1940 | # were deleted in a mock instance |
| 1941 | mock = Mock() |
| 1942 | mock.child = True |
| 1943 | del mock.child |
| 1944 | mock.reset_mock() |
| 1945 | self.assertFalse(hasattr(mock, 'child')) |
| 1946 | |
| 1947 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 1948 | def test_class_assignable(self): |
| 1949 | for mock in Mock(), MagicMock(): |
| 1950 | self.assertNotIsInstance(mock, int) |
| 1951 | |
| 1952 | mock.__class__ = int |
| 1953 | self.assertIsInstance(mock, int) |
| 1954 | mock.foo |
| 1955 | |
Andrew Dunai | e63e617 | 2018-12-04 11:08:45 +0200 | [diff] [blame] | 1956 | def test_name_attribute_of_call(self): |
| 1957 | # bpo-35357: _Call should not disclose any attributes whose names |
| 1958 | # may clash with popular ones (such as ".name") |
| 1959 | self.assertIsNotNone(call.name) |
| 1960 | self.assertEqual(type(call.name), _Call) |
| 1961 | self.assertEqual(type(call.name().name), _Call) |
| 1962 | |
| 1963 | def test_parent_attribute_of_call(self): |
| 1964 | # bpo-35357: _Call should not disclose any attributes whose names |
| 1965 | # may clash with popular ones (such as ".parent") |
| 1966 | self.assertIsNotNone(call.parent) |
| 1967 | self.assertEqual(type(call.parent), _Call) |
| 1968 | self.assertEqual(type(call.parent().parent), _Call) |
| 1969 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 1970 | |
Xtreak | 9c3f284 | 2019-02-26 03:16:34 +0530 | [diff] [blame] | 1971 | def test_parent_propagation_with_create_autospec(self): |
| 1972 | |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 1973 | def foo(a, b): pass |
Xtreak | 9c3f284 | 2019-02-26 03:16:34 +0530 | [diff] [blame] | 1974 | |
| 1975 | mock = Mock() |
| 1976 | mock.child = create_autospec(foo) |
| 1977 | mock.child(1, 2) |
| 1978 | |
| 1979 | self.assertRaises(TypeError, mock.child, 1) |
| 1980 | self.assertEqual(mock.mock_calls, [call.child(1, 2)]) |
Xtreak | 7397cda | 2019-07-22 13:08:22 +0530 | [diff] [blame] | 1981 | self.assertIn('mock.child', repr(mock.child.mock)) |
| 1982 | |
| 1983 | def test_parent_propagation_with_autospec_attach_mock(self): |
| 1984 | |
| 1985 | def foo(a, b): pass |
| 1986 | |
| 1987 | parent = Mock() |
| 1988 | parent.attach_mock(create_autospec(foo, name='bar'), 'child') |
| 1989 | parent.child(1, 2) |
| 1990 | |
| 1991 | self.assertRaises(TypeError, parent.child, 1) |
| 1992 | self.assertEqual(parent.child.mock_calls, [call.child(1, 2)]) |
| 1993 | self.assertIn('mock.child', repr(parent.child.mock)) |
| 1994 | |
Xtreak | 9c3f284 | 2019-02-26 03:16:34 +0530 | [diff] [blame] | 1995 | |
Xtreak | 830b43d | 2019-04-14 00:42:33 +0530 | [diff] [blame] | 1996 | def test_isinstance_under_settrace(self): |
| 1997 | # bpo-36593 : __class__ is not set for a class that has __class__ |
| 1998 | # property defined when it's used with sys.settrace(trace) set. |
| 1999 | # Delete the module to force reimport with tracing function set |
| 2000 | # restore the old reference later since there are other tests that are |
| 2001 | # dependent on unittest.mock.patch. In testpatch.PatchTest |
| 2002 | # test_patch_dict_test_prefix and test_patch_test_prefix not restoring |
| 2003 | # causes the objects patched to go out of sync |
| 2004 | |
| 2005 | old_patch = unittest.mock.patch |
| 2006 | |
| 2007 | # Directly using __setattr__ on unittest.mock causes current imported |
| 2008 | # reference to be updated. Use a lambda so that during cleanup the |
| 2009 | # re-imported new reference is updated. |
| 2010 | self.addCleanup(lambda patch: setattr(unittest.mock, 'patch', patch), |
| 2011 | old_patch) |
| 2012 | |
| 2013 | with patch.dict('sys.modules'): |
| 2014 | del sys.modules['unittest.mock'] |
| 2015 | |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 2016 | # This trace will stop coverage being measured ;-) |
| 2017 | def trace(frame, event, arg): # pragma: no cover |
Xtreak | 830b43d | 2019-04-14 00:42:33 +0530 | [diff] [blame] | 2018 | return trace |
| 2019 | |
Chris Withers | adbf178 | 2019-05-01 23:04:04 +0100 | [diff] [blame] | 2020 | self.addCleanup(sys.settrace, sys.gettrace()) |
Xtreak | 830b43d | 2019-04-14 00:42:33 +0530 | [diff] [blame] | 2021 | sys.settrace(trace) |
Xtreak | 830b43d | 2019-04-14 00:42:33 +0530 | [diff] [blame] | 2022 | |
| 2023 | from unittest.mock import ( |
| 2024 | Mock, MagicMock, NonCallableMock, NonCallableMagicMock |
| 2025 | ) |
| 2026 | |
| 2027 | mocks = [ |
| 2028 | Mock, MagicMock, NonCallableMock, NonCallableMagicMock |
| 2029 | ] |
| 2030 | |
| 2031 | for mock in mocks: |
| 2032 | obj = mock(spec=Something) |
| 2033 | self.assertIsInstance(obj, Something) |
| 2034 | |
Xtreak | 9c3f284 | 2019-02-26 03:16:34 +0530 | [diff] [blame] | 2035 | |
Michael Foord | 345266a | 2012-03-14 12:24:34 -0700 | [diff] [blame] | 2036 | if __name__ == '__main__': |
| 2037 | unittest.main() |