Michael Foord | 1e68bec | 2012-03-03 22:24:30 +0000 | [diff] [blame] | 1 | # Copyright (C) 2007-2012 Michael Foord & the mock team |
| 2 | # E-mail: fuzzyman AT voidspace DOT org DOT uk |
| 3 | # http://www.voidspace.org.uk/python/mock/ |
| 4 | |
| 5 | import os |
| 6 | import sys |
| 7 | |
| 8 | from tests import support |
Michael Foord | 5c241d5 | 2012-03-25 19:54:05 +0100 | [diff] [blame] | 9 | from tests.support import unittest2, inPy3k, SomeClass, is_instance, callable |
Michael Foord | 1e68bec | 2012-03-03 22:24:30 +0000 | [diff] [blame] | 10 | |
| 11 | from mock import ( |
| 12 | NonCallableMock, CallableMixin, patch, sentinel, |
Kumar McMillan | 5b522f0 | 2012-03-14 23:28:31 -0500 | [diff] [blame] | 13 | MagicMock, Mock, NonCallableMagicMock, patch, _patch, |
| 14 | DEFAULT, call, _get_target |
Michael Foord | 1e68bec | 2012-03-03 22:24:30 +0000 | [diff] [blame] | 15 | ) |
| 16 | |
| 17 | builtin_string = '__builtin__' |
| 18 | if inPy3k: |
| 19 | builtin_string = 'builtins' |
| 20 | unicode = str |
| 21 | |
| 22 | PTModule = sys.modules[__name__] |
Michael Foord | 08f4755 | 2012-03-25 17:39:04 +0100 | [diff] [blame] | 23 | MODNAME = '%s.PTModule' % __name__ |
Michael Foord | 1e68bec | 2012-03-03 22:24:30 +0000 | [diff] [blame] | 24 | |
| 25 | |
| 26 | def _get_proxy(obj, get_only=True): |
| 27 | class Proxy(object): |
| 28 | def __getattr__(self, name): |
| 29 | return getattr(obj, name) |
| 30 | if not get_only: |
| 31 | def __setattr__(self, name, value): |
| 32 | setattr(obj, name, value) |
| 33 | def __delattr__(self, name): |
| 34 | delattr(obj, name) |
| 35 | Proxy.__setattr__ = __setattr__ |
| 36 | Proxy.__delattr__ = __delattr__ |
| 37 | return Proxy() |
| 38 | |
| 39 | |
| 40 | # for use in the test |
| 41 | something = sentinel.Something |
| 42 | something_else = sentinel.SomethingElse |
| 43 | |
| 44 | |
| 45 | class Foo(object): |
| 46 | def __init__(self, a): |
| 47 | pass |
| 48 | def f(self, a): |
| 49 | pass |
| 50 | def g(self): |
| 51 | pass |
| 52 | foo = 'bar' |
| 53 | |
| 54 | class Bar(object): |
| 55 | def a(self): |
| 56 | pass |
| 57 | |
| 58 | foo_name = '%s.Foo' % __name__ |
| 59 | |
| 60 | |
| 61 | def function(a, b=Foo): |
| 62 | pass |
| 63 | |
| 64 | |
| 65 | class Container(object): |
| 66 | def __init__(self): |
| 67 | self.values = {} |
| 68 | |
| 69 | def __getitem__(self, name): |
| 70 | return self.values[name] |
| 71 | |
| 72 | def __setitem__(self, name, value): |
| 73 | self.values[name] = value |
| 74 | |
| 75 | def __delitem__(self, name): |
| 76 | del self.values[name] |
| 77 | |
| 78 | def __iter__(self): |
| 79 | return iter(self.values) |
| 80 | |
| 81 | |
| 82 | |
| 83 | class PatchTest(unittest2.TestCase): |
| 84 | |
| 85 | def assertNotCallable(self, obj, magic=True): |
| 86 | MockClass = NonCallableMagicMock |
| 87 | if not magic: |
| 88 | MockClass = NonCallableMock |
| 89 | |
| 90 | self.assertRaises(TypeError, obj) |
| 91 | self.assertTrue(is_instance(obj, MockClass)) |
| 92 | self.assertFalse(is_instance(obj, CallableMixin)) |
| 93 | |
| 94 | |
| 95 | def test_single_patchobject(self): |
| 96 | class Something(object): |
| 97 | attribute = sentinel.Original |
| 98 | |
| 99 | @patch.object(Something, 'attribute', sentinel.Patched) |
| 100 | def test(): |
| 101 | self.assertEqual(Something.attribute, sentinel.Patched, "unpatched") |
| 102 | |
| 103 | test() |
| 104 | self.assertEqual(Something.attribute, sentinel.Original, |
| 105 | "patch not restored") |
| 106 | |
| 107 | |
| 108 | def test_patchobject_with_none(self): |
| 109 | class Something(object): |
| 110 | attribute = sentinel.Original |
| 111 | |
| 112 | @patch.object(Something, 'attribute', None) |
| 113 | def test(): |
| 114 | self.assertIsNone(Something.attribute, "unpatched") |
| 115 | |
| 116 | test() |
| 117 | self.assertEqual(Something.attribute, sentinel.Original, |
| 118 | "patch not restored") |
| 119 | |
| 120 | |
| 121 | def test_multiple_patchobject(self): |
| 122 | class Something(object): |
| 123 | attribute = sentinel.Original |
| 124 | next_attribute = sentinel.Original2 |
| 125 | |
| 126 | @patch.object(Something, 'attribute', sentinel.Patched) |
| 127 | @patch.object(Something, 'next_attribute', sentinel.Patched2) |
| 128 | def test(): |
| 129 | self.assertEqual(Something.attribute, sentinel.Patched, |
| 130 | "unpatched") |
| 131 | self.assertEqual(Something.next_attribute, sentinel.Patched2, |
| 132 | "unpatched") |
| 133 | |
| 134 | test() |
| 135 | self.assertEqual(Something.attribute, sentinel.Original, |
| 136 | "patch not restored") |
| 137 | self.assertEqual(Something.next_attribute, sentinel.Original2, |
| 138 | "patch not restored") |
| 139 | |
| 140 | |
| 141 | def test_object_lookup_is_quite_lazy(self): |
| 142 | global something |
| 143 | original = something |
| 144 | @patch('%s.something' % __name__, sentinel.Something2) |
| 145 | def test(): |
| 146 | pass |
| 147 | |
| 148 | try: |
| 149 | something = sentinel.replacement_value |
| 150 | test() |
| 151 | self.assertEqual(something, sentinel.replacement_value) |
| 152 | finally: |
| 153 | something = original |
| 154 | |
| 155 | |
| 156 | def test_patch(self): |
| 157 | @patch('%s.something' % __name__, sentinel.Something2) |
| 158 | def test(): |
| 159 | self.assertEqual(PTModule.something, sentinel.Something2, |
| 160 | "unpatched") |
| 161 | |
| 162 | test() |
| 163 | self.assertEqual(PTModule.something, sentinel.Something, |
| 164 | "patch not restored") |
| 165 | |
| 166 | @patch('%s.something' % __name__, sentinel.Something2) |
| 167 | @patch('%s.something_else' % __name__, sentinel.SomethingElse) |
| 168 | def test(): |
| 169 | self.assertEqual(PTModule.something, sentinel.Something2, |
| 170 | "unpatched") |
| 171 | self.assertEqual(PTModule.something_else, sentinel.SomethingElse, |
| 172 | "unpatched") |
| 173 | |
| 174 | self.assertEqual(PTModule.something, sentinel.Something, |
| 175 | "patch not restored") |
| 176 | self.assertEqual(PTModule.something_else, sentinel.SomethingElse, |
| 177 | "patch not restored") |
| 178 | |
| 179 | # Test the patching and restoring works a second time |
| 180 | test() |
| 181 | |
| 182 | self.assertEqual(PTModule.something, sentinel.Something, |
| 183 | "patch not restored") |
| 184 | self.assertEqual(PTModule.something_else, sentinel.SomethingElse, |
| 185 | "patch not restored") |
| 186 | |
| 187 | mock = Mock() |
| 188 | mock.return_value = sentinel.Handle |
| 189 | @patch('%s.open' % builtin_string, mock) |
| 190 | def test(): |
| 191 | self.assertEqual(open('filename', 'r'), sentinel.Handle, |
| 192 | "open not patched") |
| 193 | test() |
| 194 | test() |
| 195 | |
| 196 | self.assertNotEqual(open, mock, "patch not restored") |
| 197 | |
| 198 | |
| 199 | def test_patch_class_attribute(self): |
| 200 | @patch('%s.SomeClass.class_attribute' % __name__, |
| 201 | sentinel.ClassAttribute) |
| 202 | def test(): |
| 203 | self.assertEqual(PTModule.SomeClass.class_attribute, |
| 204 | sentinel.ClassAttribute, "unpatched") |
| 205 | test() |
| 206 | |
| 207 | self.assertIsNone(PTModule.SomeClass.class_attribute, |
| 208 | "patch not restored") |
| 209 | |
| 210 | |
| 211 | def test_patchobject_with_default_mock(self): |
| 212 | class Test(object): |
| 213 | something = sentinel.Original |
| 214 | something2 = sentinel.Original2 |
| 215 | |
| 216 | @patch.object(Test, 'something') |
| 217 | def test(mock): |
| 218 | self.assertEqual(mock, Test.something, |
| 219 | "Mock not passed into test function") |
| 220 | self.assertIsInstance(mock, MagicMock, |
| 221 | "patch with two arguments did not create a mock") |
| 222 | |
| 223 | test() |
| 224 | |
| 225 | @patch.object(Test, 'something') |
| 226 | @patch.object(Test, 'something2') |
| 227 | def test(this1, this2, mock1, mock2): |
| 228 | self.assertEqual(this1, sentinel.this1, |
| 229 | "Patched function didn't receive initial argument") |
| 230 | self.assertEqual(this2, sentinel.this2, |
| 231 | "Patched function didn't receive second argument") |
| 232 | self.assertEqual(mock1, Test.something2, |
| 233 | "Mock not passed into test function") |
| 234 | self.assertEqual(mock2, Test.something, |
| 235 | "Second Mock not passed into test function") |
| 236 | self.assertIsInstance(mock2, MagicMock, |
| 237 | "patch with two arguments did not create a mock") |
| 238 | self.assertIsInstance(mock2, MagicMock, |
| 239 | "patch with two arguments did not create a mock") |
| 240 | |
| 241 | # A hack to test that new mocks are passed the second time |
| 242 | self.assertNotEqual(outerMock1, mock1, "unexpected value for mock1") |
| 243 | self.assertNotEqual(outerMock2, mock2, "unexpected value for mock1") |
| 244 | return mock1, mock2 |
| 245 | |
| 246 | outerMock1 = outerMock2 = None |
| 247 | outerMock1, outerMock2 = test(sentinel.this1, sentinel.this2) |
| 248 | |
| 249 | # Test that executing a second time creates new mocks |
| 250 | test(sentinel.this1, sentinel.this2) |
| 251 | |
| 252 | |
| 253 | def test_patch_with_spec(self): |
| 254 | @patch('%s.SomeClass' % __name__, spec=SomeClass) |
| 255 | def test(MockSomeClass): |
| 256 | self.assertEqual(SomeClass, MockSomeClass) |
| 257 | self.assertTrue(is_instance(SomeClass.wibble, MagicMock)) |
| 258 | self.assertRaises(AttributeError, lambda: SomeClass.not_wibble) |
| 259 | |
| 260 | test() |
| 261 | |
| 262 | |
| 263 | def test_patchobject_with_spec(self): |
| 264 | @patch.object(SomeClass, 'class_attribute', spec=SomeClass) |
| 265 | def test(MockAttribute): |
| 266 | self.assertEqual(SomeClass.class_attribute, MockAttribute) |
| 267 | self.assertTrue(is_instance(SomeClass.class_attribute.wibble, |
| 268 | MagicMock)) |
| 269 | self.assertRaises(AttributeError, |
| 270 | lambda: SomeClass.class_attribute.not_wibble) |
| 271 | |
| 272 | test() |
| 273 | |
| 274 | |
| 275 | def test_patch_with_spec_as_list(self): |
| 276 | @patch('%s.SomeClass' % __name__, spec=['wibble']) |
| 277 | def test(MockSomeClass): |
| 278 | self.assertEqual(SomeClass, MockSomeClass) |
| 279 | self.assertTrue(is_instance(SomeClass.wibble, MagicMock)) |
| 280 | self.assertRaises(AttributeError, lambda: SomeClass.not_wibble) |
| 281 | |
| 282 | test() |
| 283 | |
| 284 | |
| 285 | def test_patchobject_with_spec_as_list(self): |
| 286 | @patch.object(SomeClass, 'class_attribute', spec=['wibble']) |
| 287 | def test(MockAttribute): |
| 288 | self.assertEqual(SomeClass.class_attribute, MockAttribute) |
| 289 | self.assertTrue(is_instance(SomeClass.class_attribute.wibble, |
| 290 | MagicMock)) |
| 291 | self.assertRaises(AttributeError, |
| 292 | lambda: SomeClass.class_attribute.not_wibble) |
| 293 | |
| 294 | test() |
| 295 | |
| 296 | |
| 297 | def test_nested_patch_with_spec_as_list(self): |
| 298 | # regression test for nested decorators |
| 299 | @patch('%s.open' % builtin_string) |
| 300 | @patch('%s.SomeClass' % __name__, spec=['wibble']) |
| 301 | def test(MockSomeClass, MockOpen): |
| 302 | self.assertEqual(SomeClass, MockSomeClass) |
| 303 | self.assertTrue(is_instance(SomeClass.wibble, MagicMock)) |
| 304 | self.assertRaises(AttributeError, lambda: SomeClass.not_wibble) |
| 305 | test() |
| 306 | |
| 307 | |
| 308 | def test_patch_with_spec_as_boolean(self): |
| 309 | @patch('%s.SomeClass' % __name__, spec=True) |
| 310 | def test(MockSomeClass): |
| 311 | self.assertEqual(SomeClass, MockSomeClass) |
| 312 | # Should not raise attribute error |
| 313 | MockSomeClass.wibble |
| 314 | |
| 315 | self.assertRaises(AttributeError, lambda: MockSomeClass.not_wibble) |
| 316 | |
| 317 | test() |
| 318 | |
| 319 | |
| 320 | def test_patch_object_with_spec_as_boolean(self): |
| 321 | @patch.object(PTModule, 'SomeClass', spec=True) |
| 322 | def test(MockSomeClass): |
| 323 | self.assertEqual(SomeClass, MockSomeClass) |
| 324 | # Should not raise attribute error |
| 325 | MockSomeClass.wibble |
| 326 | |
| 327 | self.assertRaises(AttributeError, lambda: MockSomeClass.not_wibble) |
| 328 | |
| 329 | test() |
| 330 | |
| 331 | |
| 332 | def test_patch_class_acts_with_spec_is_inherited(self): |
| 333 | @patch('%s.SomeClass' % __name__, spec=True) |
| 334 | def test(MockSomeClass): |
| 335 | self.assertTrue(is_instance(MockSomeClass, MagicMock)) |
| 336 | instance = MockSomeClass() |
| 337 | self.assertNotCallable(instance) |
| 338 | # Should not raise attribute error |
| 339 | instance.wibble |
| 340 | |
| 341 | self.assertRaises(AttributeError, lambda: instance.not_wibble) |
| 342 | |
| 343 | test() |
| 344 | |
| 345 | |
| 346 | def test_patch_with_create_mocks_non_existent_attributes(self): |
| 347 | @patch('%s.frooble' % builtin_string, sentinel.Frooble, create=True) |
| 348 | def test(): |
| 349 | self.assertEqual(frooble, sentinel.Frooble) |
| 350 | |
| 351 | test() |
| 352 | self.assertRaises(NameError, lambda: frooble) |
| 353 | |
| 354 | |
| 355 | def test_patchobject_with_create_mocks_non_existent_attributes(self): |
| 356 | @patch.object(SomeClass, 'frooble', sentinel.Frooble, create=True) |
| 357 | def test(): |
| 358 | self.assertEqual(SomeClass.frooble, sentinel.Frooble) |
| 359 | |
| 360 | test() |
| 361 | self.assertFalse(hasattr(SomeClass, 'frooble')) |
| 362 | |
| 363 | |
| 364 | def test_patch_wont_create_by_default(self): |
| 365 | try: |
| 366 | @patch('%s.frooble' % builtin_string, sentinel.Frooble) |
| 367 | def test(): |
| 368 | self.assertEqual(frooble, sentinel.Frooble) |
| 369 | |
| 370 | test() |
| 371 | except AttributeError: |
| 372 | pass |
| 373 | else: |
| 374 | self.fail('Patching non existent attributes should fail') |
| 375 | |
| 376 | self.assertRaises(NameError, lambda: frooble) |
| 377 | |
| 378 | |
| 379 | def test_patchobject_wont_create_by_default(self): |
| 380 | try: |
| 381 | @patch.object(SomeClass, 'frooble', sentinel.Frooble) |
| 382 | def test(): |
| 383 | self.fail('Patching non existent attributes should fail') |
| 384 | |
| 385 | test() |
| 386 | except AttributeError: |
| 387 | pass |
| 388 | else: |
| 389 | self.fail('Patching non existent attributes should fail') |
| 390 | self.assertFalse(hasattr(SomeClass, 'frooble')) |
| 391 | |
| 392 | |
| 393 | def test_patch_with_static_methods(self): |
| 394 | class Foo(object): |
| 395 | @staticmethod |
| 396 | def woot(): |
| 397 | return sentinel.Static |
| 398 | |
| 399 | @patch.object(Foo, 'woot', staticmethod(lambda: sentinel.Patched)) |
| 400 | def anonymous(): |
| 401 | self.assertEqual(Foo.woot(), sentinel.Patched) |
| 402 | anonymous() |
| 403 | |
| 404 | self.assertEqual(Foo.woot(), sentinel.Static) |
| 405 | |
| 406 | |
| 407 | def test_patch_local(self): |
| 408 | foo = sentinel.Foo |
| 409 | @patch.object(sentinel, 'Foo', 'Foo') |
| 410 | def anonymous(): |
| 411 | self.assertEqual(sentinel.Foo, 'Foo') |
| 412 | anonymous() |
| 413 | |
| 414 | self.assertEqual(sentinel.Foo, foo) |
| 415 | |
| 416 | |
| 417 | def test_patch_slots(self): |
| 418 | class Foo(object): |
| 419 | __slots__ = ('Foo',) |
| 420 | |
| 421 | foo = Foo() |
| 422 | foo.Foo = sentinel.Foo |
| 423 | |
| 424 | @patch.object(foo, 'Foo', 'Foo') |
| 425 | def anonymous(): |
| 426 | self.assertEqual(foo.Foo, 'Foo') |
| 427 | anonymous() |
| 428 | |
| 429 | self.assertEqual(foo.Foo, sentinel.Foo) |
| 430 | |
| 431 | |
| 432 | def test_patchobject_class_decorator(self): |
| 433 | class Something(object): |
| 434 | attribute = sentinel.Original |
| 435 | |
| 436 | class Foo(object): |
| 437 | def test_method(other_self): |
| 438 | self.assertEqual(Something.attribute, sentinel.Patched, |
| 439 | "unpatched") |
| 440 | def not_test_method(other_self): |
| 441 | self.assertEqual(Something.attribute, sentinel.Original, |
| 442 | "non-test method patched") |
| 443 | |
| 444 | Foo = patch.object(Something, 'attribute', sentinel.Patched)(Foo) |
| 445 | |
| 446 | f = Foo() |
| 447 | f.test_method() |
| 448 | f.not_test_method() |
| 449 | |
| 450 | self.assertEqual(Something.attribute, sentinel.Original, |
| 451 | "patch not restored") |
| 452 | |
| 453 | |
| 454 | def test_patch_class_decorator(self): |
| 455 | class Something(object): |
| 456 | attribute = sentinel.Original |
| 457 | |
| 458 | class Foo(object): |
| 459 | def test_method(other_self, mock_something): |
| 460 | self.assertEqual(PTModule.something, mock_something, |
| 461 | "unpatched") |
| 462 | def not_test_method(other_self): |
| 463 | self.assertEqual(PTModule.something, sentinel.Something, |
| 464 | "non-test method patched") |
| 465 | Foo = patch('%s.something' % __name__)(Foo) |
| 466 | |
| 467 | f = Foo() |
| 468 | f.test_method() |
| 469 | f.not_test_method() |
| 470 | |
| 471 | self.assertEqual(Something.attribute, sentinel.Original, |
| 472 | "patch not restored") |
| 473 | self.assertEqual(PTModule.something, sentinel.Something, |
| 474 | "patch not restored") |
| 475 | |
| 476 | |
| 477 | def test_patchobject_twice(self): |
| 478 | class Something(object): |
| 479 | attribute = sentinel.Original |
| 480 | next_attribute = sentinel.Original2 |
| 481 | |
| 482 | @patch.object(Something, 'attribute', sentinel.Patched) |
| 483 | @patch.object(Something, 'attribute', sentinel.Patched) |
| 484 | def test(): |
| 485 | self.assertEqual(Something.attribute, sentinel.Patched, "unpatched") |
| 486 | |
| 487 | test() |
| 488 | |
| 489 | self.assertEqual(Something.attribute, sentinel.Original, |
| 490 | "patch not restored") |
| 491 | |
| 492 | |
| 493 | def test_patch_dict(self): |
| 494 | foo = {'initial': object(), 'other': 'something'} |
| 495 | original = foo.copy() |
| 496 | |
| 497 | @patch.dict(foo) |
| 498 | def test(): |
| 499 | foo['a'] = 3 |
| 500 | del foo['initial'] |
| 501 | foo['other'] = 'something else' |
| 502 | |
| 503 | test() |
| 504 | |
| 505 | self.assertEqual(foo, original) |
| 506 | |
| 507 | @patch.dict(foo, {'a': 'b'}) |
| 508 | def test(): |
| 509 | self.assertEqual(len(foo), 3) |
| 510 | self.assertEqual(foo['a'], 'b') |
| 511 | |
| 512 | test() |
| 513 | |
| 514 | self.assertEqual(foo, original) |
| 515 | |
| 516 | @patch.dict(foo, [('a', 'b')]) |
| 517 | def test(): |
| 518 | self.assertEqual(len(foo), 3) |
| 519 | self.assertEqual(foo['a'], 'b') |
| 520 | |
| 521 | test() |
| 522 | |
| 523 | self.assertEqual(foo, original) |
| 524 | |
| 525 | |
| 526 | def test_patch_dict_with_container_object(self): |
| 527 | foo = Container() |
| 528 | foo['initial'] = object() |
| 529 | foo['other'] = 'something' |
| 530 | |
| 531 | original = foo.values.copy() |
| 532 | |
| 533 | @patch.dict(foo) |
| 534 | def test(): |
| 535 | foo['a'] = 3 |
| 536 | del foo['initial'] |
| 537 | foo['other'] = 'something else' |
| 538 | |
| 539 | test() |
| 540 | |
| 541 | self.assertEqual(foo.values, original) |
| 542 | |
| 543 | @patch.dict(foo, {'a': 'b'}) |
| 544 | def test(): |
| 545 | self.assertEqual(len(foo.values), 3) |
| 546 | self.assertEqual(foo['a'], 'b') |
| 547 | |
| 548 | test() |
| 549 | |
| 550 | self.assertEqual(foo.values, original) |
| 551 | |
| 552 | |
| 553 | def test_patch_dict_with_clear(self): |
| 554 | foo = {'initial': object(), 'other': 'something'} |
| 555 | original = foo.copy() |
| 556 | |
| 557 | @patch.dict(foo, clear=True) |
| 558 | def test(): |
| 559 | self.assertEqual(foo, {}) |
| 560 | foo['a'] = 3 |
| 561 | foo['other'] = 'something else' |
| 562 | |
| 563 | test() |
| 564 | |
| 565 | self.assertEqual(foo, original) |
| 566 | |
| 567 | @patch.dict(foo, {'a': 'b'}, clear=True) |
| 568 | def test(): |
| 569 | self.assertEqual(foo, {'a': 'b'}) |
| 570 | |
| 571 | test() |
| 572 | |
| 573 | self.assertEqual(foo, original) |
| 574 | |
| 575 | @patch.dict(foo, [('a', 'b')], clear=True) |
| 576 | def test(): |
| 577 | self.assertEqual(foo, {'a': 'b'}) |
| 578 | |
| 579 | test() |
| 580 | |
| 581 | self.assertEqual(foo, original) |
| 582 | |
| 583 | |
| 584 | def test_patch_dict_with_container_object_and_clear(self): |
| 585 | foo = Container() |
| 586 | foo['initial'] = object() |
| 587 | foo['other'] = 'something' |
| 588 | |
| 589 | original = foo.values.copy() |
| 590 | |
| 591 | @patch.dict(foo, clear=True) |
| 592 | def test(): |
| 593 | self.assertEqual(foo.values, {}) |
| 594 | foo['a'] = 3 |
| 595 | foo['other'] = 'something else' |
| 596 | |
| 597 | test() |
| 598 | |
| 599 | self.assertEqual(foo.values, original) |
| 600 | |
| 601 | @patch.dict(foo, {'a': 'b'}, clear=True) |
| 602 | def test(): |
| 603 | self.assertEqual(foo.values, {'a': 'b'}) |
| 604 | |
| 605 | test() |
| 606 | |
| 607 | self.assertEqual(foo.values, original) |
| 608 | |
| 609 | |
| 610 | def test_name_preserved(self): |
| 611 | foo = {} |
| 612 | |
| 613 | @patch('%s.SomeClass' % __name__, object()) |
Michael Foord | a9a8bb9 | 2012-03-13 14:39:59 -0700 | [diff] [blame] | 614 | @patch('%s.SomeClass' % __name__, object(), autospec=True) |
Michael Foord | 1e68bec | 2012-03-03 22:24:30 +0000 | [diff] [blame] | 615 | @patch.object(SomeClass, object()) |
| 616 | @patch.dict(foo) |
| 617 | def some_name(): |
| 618 | pass |
| 619 | |
| 620 | self.assertEqual(some_name.__name__, 'some_name') |
| 621 | |
| 622 | |
| 623 | def test_patch_with_exception(self): |
| 624 | foo = {} |
| 625 | |
| 626 | @patch.dict(foo, {'a': 'b'}) |
| 627 | def test(): |
| 628 | raise NameError('Konrad') |
| 629 | try: |
| 630 | test() |
| 631 | except NameError: |
| 632 | pass |
| 633 | else: |
| 634 | self.fail('NameError not raised by test') |
| 635 | |
| 636 | self.assertEqual(foo, {}) |
| 637 | |
| 638 | |
| 639 | def test_patch_dict_with_string(self): |
| 640 | @patch.dict('os.environ', {'konrad_delong': 'some value'}) |
| 641 | def test(): |
| 642 | self.assertIn('konrad_delong', os.environ) |
| 643 | |
| 644 | test() |
| 645 | |
| 646 | |
| 647 | @unittest2.expectedFailure |
| 648 | def test_patch_descriptor(self): |
| 649 | # would be some effort to fix this - we could special case the |
| 650 | # builtin descriptors: classmethod, property, staticmethod |
| 651 | class Nothing(object): |
| 652 | foo = None |
| 653 | |
| 654 | class Something(object): |
| 655 | foo = {} |
| 656 | |
| 657 | @patch.object(Nothing, 'foo', 2) |
| 658 | @classmethod |
| 659 | def klass(cls): |
| 660 | self.assertIs(cls, Something) |
| 661 | |
| 662 | @patch.object(Nothing, 'foo', 2) |
| 663 | @staticmethod |
| 664 | def static(arg): |
| 665 | return arg |
| 666 | |
| 667 | @patch.dict(foo) |
| 668 | @classmethod |
| 669 | def klass_dict(cls): |
| 670 | self.assertIs(cls, Something) |
| 671 | |
| 672 | @patch.dict(foo) |
| 673 | @staticmethod |
| 674 | def static_dict(arg): |
| 675 | return arg |
| 676 | |
| 677 | # these will raise exceptions if patching descriptors is broken |
| 678 | self.assertEqual(Something.static('f00'), 'f00') |
| 679 | Something.klass() |
| 680 | self.assertEqual(Something.static_dict('f00'), 'f00') |
| 681 | Something.klass_dict() |
| 682 | |
| 683 | something = Something() |
| 684 | self.assertEqual(something.static('f00'), 'f00') |
| 685 | something.klass() |
| 686 | self.assertEqual(something.static_dict('f00'), 'f00') |
| 687 | something.klass_dict() |
| 688 | |
| 689 | |
| 690 | def test_patch_spec_set(self): |
Michael Foord | 08f4755 | 2012-03-25 17:39:04 +0100 | [diff] [blame] | 691 | @patch('%s.SomeClass' % __name__, spec_set=SomeClass) |
Michael Foord | 1e68bec | 2012-03-03 22:24:30 +0000 | [diff] [blame] | 692 | def test(MockClass): |
| 693 | MockClass.z = 'foo' |
| 694 | |
| 695 | self.assertRaises(AttributeError, test) |
| 696 | |
Michael Foord | 08f4755 | 2012-03-25 17:39:04 +0100 | [diff] [blame] | 697 | @patch.object(support, 'SomeClass', spec_set=SomeClass) |
Michael Foord | 1e68bec | 2012-03-03 22:24:30 +0000 | [diff] [blame] | 698 | def test(MockClass): |
| 699 | MockClass.z = 'foo' |
| 700 | |
| 701 | self.assertRaises(AttributeError, test) |
| 702 | @patch('%s.SomeClass' % __name__, spec_set=True) |
| 703 | def test(MockClass): |
| 704 | MockClass.z = 'foo' |
| 705 | |
| 706 | self.assertRaises(AttributeError, test) |
| 707 | |
| 708 | @patch.object(support, 'SomeClass', spec_set=True) |
| 709 | def test(MockClass): |
| 710 | MockClass.z = 'foo' |
| 711 | |
| 712 | self.assertRaises(AttributeError, test) |
| 713 | |
| 714 | |
| 715 | def test_spec_set_inherit(self): |
| 716 | @patch('%s.SomeClass' % __name__, spec_set=True) |
| 717 | def test(MockClass): |
| 718 | instance = MockClass() |
| 719 | instance.z = 'foo' |
| 720 | |
| 721 | self.assertRaises(AttributeError, test) |
| 722 | |
| 723 | |
| 724 | def test_patch_start_stop(self): |
| 725 | original = something |
| 726 | patcher = patch('%s.something' % __name__) |
| 727 | self.assertIs(something, original) |
| 728 | mock = patcher.start() |
Michael Foord | 1e68bec | 2012-03-03 22:24:30 +0000 | [diff] [blame] | 729 | try: |
Michael Foord | 5bcc774 | 2012-03-25 18:37:46 +0100 | [diff] [blame] | 730 | self.assertIsNot(mock, original) |
Michael Foord | 1e68bec | 2012-03-03 22:24:30 +0000 | [diff] [blame] | 731 | self.assertIs(something, mock) |
| 732 | finally: |
| 733 | patcher.stop() |
| 734 | self.assertIs(something, original) |
| 735 | |
| 736 | |
| 737 | def test_stop_without_start(self): |
| 738 | patcher = patch(foo_name, 'bar', 3) |
| 739 | |
| 740 | # calling stop without start used to produce a very obscure error |
| 741 | self.assertRaises(RuntimeError, patcher.stop) |
| 742 | |
| 743 | |
| 744 | def test_patchobject_start_stop(self): |
| 745 | original = something |
| 746 | patcher = patch.object(PTModule, 'something', 'foo') |
| 747 | self.assertIs(something, original) |
| 748 | replaced = patcher.start() |
Michael Foord | 1e68bec | 2012-03-03 22:24:30 +0000 | [diff] [blame] | 749 | try: |
Michael Foord | 5bcc774 | 2012-03-25 18:37:46 +0100 | [diff] [blame] | 750 | self.assertEqual(replaced, 'foo') |
Michael Foord | 1e68bec | 2012-03-03 22:24:30 +0000 | [diff] [blame] | 751 | self.assertIs(something, replaced) |
| 752 | finally: |
| 753 | patcher.stop() |
| 754 | self.assertIs(something, original) |
| 755 | |
| 756 | |
| 757 | def test_patch_dict_start_stop(self): |
| 758 | d = {'foo': 'bar'} |
| 759 | original = d.copy() |
| 760 | patcher = patch.dict(d, [('spam', 'eggs')], clear=True) |
| 761 | self.assertEqual(d, original) |
| 762 | |
| 763 | patcher.start() |
Michael Foord | 5bcc774 | 2012-03-25 18:37:46 +0100 | [diff] [blame] | 764 | try: |
| 765 | self.assertEqual(d, {'spam': 'eggs'}) |
| 766 | finally: |
| 767 | patcher.stop() |
Michael Foord | 1e68bec | 2012-03-03 22:24:30 +0000 | [diff] [blame] | 768 | self.assertEqual(d, original) |
| 769 | |
| 770 | |
| 771 | def test_patch_dict_class_decorator(self): |
| 772 | this = self |
| 773 | d = {'spam': 'eggs'} |
| 774 | original = d.copy() |
| 775 | |
| 776 | class Test(object): |
| 777 | def test_first(self): |
| 778 | this.assertEqual(d, {'foo': 'bar'}) |
| 779 | def test_second(self): |
| 780 | this.assertEqual(d, {'foo': 'bar'}) |
| 781 | |
| 782 | Test = patch.dict(d, {'foo': 'bar'}, clear=True)(Test) |
| 783 | self.assertEqual(d, original) |
| 784 | |
| 785 | test = Test() |
| 786 | |
| 787 | test.test_first() |
| 788 | self.assertEqual(d, original) |
| 789 | |
| 790 | test.test_second() |
| 791 | self.assertEqual(d, original) |
| 792 | |
| 793 | test = Test() |
| 794 | |
| 795 | test.test_first() |
| 796 | self.assertEqual(d, original) |
| 797 | |
| 798 | test.test_second() |
| 799 | self.assertEqual(d, original) |
| 800 | |
| 801 | |
| 802 | def test_get_only_proxy(self): |
| 803 | class Something(object): |
| 804 | foo = 'foo' |
| 805 | class SomethingElse: |
| 806 | foo = 'foo' |
| 807 | |
| 808 | for thing in Something, SomethingElse, Something(), SomethingElse: |
| 809 | proxy = _get_proxy(thing) |
| 810 | |
| 811 | @patch.object(proxy, 'foo', 'bar') |
| 812 | def test(): |
| 813 | self.assertEqual(proxy.foo, 'bar') |
| 814 | test() |
| 815 | self.assertEqual(proxy.foo, 'foo') |
| 816 | self.assertEqual(thing.foo, 'foo') |
| 817 | self.assertNotIn('foo', proxy.__dict__) |
| 818 | |
| 819 | |
| 820 | def test_get_set_delete_proxy(self): |
| 821 | class Something(object): |
| 822 | foo = 'foo' |
| 823 | class SomethingElse: |
| 824 | foo = 'foo' |
| 825 | |
| 826 | for thing in Something, SomethingElse, Something(), SomethingElse: |
| 827 | proxy = _get_proxy(Something, get_only=False) |
| 828 | |
| 829 | @patch.object(proxy, 'foo', 'bar') |
| 830 | def test(): |
| 831 | self.assertEqual(proxy.foo, 'bar') |
| 832 | test() |
| 833 | self.assertEqual(proxy.foo, 'foo') |
| 834 | self.assertEqual(thing.foo, 'foo') |
| 835 | self.assertNotIn('foo', proxy.__dict__) |
| 836 | |
| 837 | |
| 838 | def test_patch_keyword_args(self): |
| 839 | kwargs = {'side_effect': KeyError, 'foo.bar.return_value': 33, |
| 840 | 'foo': MagicMock()} |
| 841 | |
| 842 | patcher = patch(foo_name, **kwargs) |
| 843 | mock = patcher.start() |
| 844 | patcher.stop() |
| 845 | |
| 846 | self.assertRaises(KeyError, mock) |
| 847 | self.assertEqual(mock.foo.bar(), 33) |
| 848 | self.assertIsInstance(mock.foo, MagicMock) |
| 849 | |
| 850 | |
| 851 | def test_patch_object_keyword_args(self): |
| 852 | kwargs = {'side_effect': KeyError, 'foo.bar.return_value': 33, |
| 853 | 'foo': MagicMock()} |
| 854 | |
| 855 | patcher = patch.object(Foo, 'f', **kwargs) |
| 856 | mock = patcher.start() |
| 857 | patcher.stop() |
| 858 | |
| 859 | self.assertRaises(KeyError, mock) |
| 860 | self.assertEqual(mock.foo.bar(), 33) |
| 861 | self.assertIsInstance(mock.foo, MagicMock) |
| 862 | |
| 863 | |
| 864 | def test_patch_dict_keyword_args(self): |
| 865 | original = {'foo': 'bar'} |
| 866 | copy = original.copy() |
| 867 | |
| 868 | patcher = patch.dict(original, foo=3, bar=4, baz=5) |
| 869 | patcher.start() |
| 870 | |
| 871 | try: |
| 872 | self.assertEqual(original, dict(foo=3, bar=4, baz=5)) |
| 873 | finally: |
| 874 | patcher.stop() |
| 875 | |
| 876 | self.assertEqual(original, copy) |
| 877 | |
| 878 | |
| 879 | def test_autospec(self): |
| 880 | class Boo(object): |
| 881 | def __init__(self, a): |
| 882 | pass |
| 883 | def f(self, a): |
| 884 | pass |
| 885 | def g(self): |
| 886 | pass |
| 887 | foo = 'bar' |
| 888 | |
| 889 | class Bar(object): |
| 890 | def a(self): |
| 891 | pass |
| 892 | |
| 893 | def _test(mock): |
| 894 | mock(1) |
| 895 | mock.assert_called_with(1) |
| 896 | self.assertRaises(TypeError, mock) |
| 897 | |
| 898 | def _test2(mock): |
| 899 | mock.f(1) |
| 900 | mock.f.assert_called_with(1) |
| 901 | self.assertRaises(TypeError, mock.f) |
| 902 | |
| 903 | mock.g() |
| 904 | mock.g.assert_called_with() |
| 905 | self.assertRaises(TypeError, mock.g, 1) |
| 906 | |
| 907 | self.assertRaises(AttributeError, getattr, mock, 'h') |
| 908 | |
| 909 | mock.foo.lower() |
| 910 | mock.foo.lower.assert_called_with() |
| 911 | self.assertRaises(AttributeError, getattr, mock.foo, 'bar') |
| 912 | |
| 913 | mock.Bar() |
| 914 | mock.Bar.assert_called_with() |
| 915 | |
| 916 | mock.Bar.a() |
| 917 | mock.Bar.a.assert_called_with() |
| 918 | self.assertRaises(TypeError, mock.Bar.a, 1) |
| 919 | |
| 920 | mock.Bar().a() |
| 921 | mock.Bar().a.assert_called_with() |
| 922 | self.assertRaises(TypeError, mock.Bar().a, 1) |
| 923 | |
| 924 | self.assertRaises(AttributeError, getattr, mock.Bar, 'b') |
| 925 | self.assertRaises(AttributeError, getattr, mock.Bar(), 'b') |
| 926 | |
| 927 | def function(mock): |
| 928 | _test(mock) |
| 929 | _test2(mock) |
| 930 | _test2(mock(1)) |
| 931 | self.assertIs(mock, Foo) |
| 932 | return mock |
| 933 | |
| 934 | test = patch(foo_name, autospec=True)(function) |
| 935 | |
| 936 | mock = test() |
| 937 | self.assertIsNot(Foo, mock) |
| 938 | # test patching a second time works |
| 939 | test() |
| 940 | |
| 941 | module = sys.modules[__name__] |
| 942 | test = patch.object(module, 'Foo', autospec=True)(function) |
| 943 | |
| 944 | mock = test() |
| 945 | self.assertIsNot(Foo, mock) |
| 946 | # test patching a second time works |
| 947 | test() |
| 948 | |
| 949 | |
| 950 | def test_autospec_function(self): |
| 951 | @patch('%s.function' % __name__, autospec=True) |
| 952 | def test(mock): |
| 953 | function(1) |
| 954 | function.assert_called_with(1) |
| 955 | function(2, 3) |
| 956 | function.assert_called_with(2, 3) |
| 957 | |
| 958 | self.assertRaises(TypeError, function) |
| 959 | self.assertRaises(AttributeError, getattr, function, 'foo') |
| 960 | |
| 961 | test() |
| 962 | |
| 963 | |
| 964 | def test_autospec_keywords(self): |
| 965 | @patch('%s.function' % __name__, autospec=True, |
| 966 | return_value=3) |
| 967 | def test(mock_function): |
| 968 | #self.assertEqual(function.abc, 'foo') |
| 969 | return function(1, 2) |
| 970 | |
| 971 | result = test() |
| 972 | self.assertEqual(result, 3) |
| 973 | |
| 974 | |
| 975 | def test_autospec_with_new(self): |
| 976 | patcher = patch('%s.function' % __name__, new=3, autospec=True) |
| 977 | self.assertRaises(TypeError, patcher.start) |
| 978 | |
| 979 | module = sys.modules[__name__] |
| 980 | patcher = patch.object(module, 'function', new=3, autospec=True) |
| 981 | self.assertRaises(TypeError, patcher.start) |
| 982 | |
| 983 | |
| 984 | def test_autospec_with_object(self): |
| 985 | class Bar(Foo): |
| 986 | extra = [] |
| 987 | |
| 988 | patcher = patch(foo_name, autospec=Bar) |
| 989 | mock = patcher.start() |
| 990 | try: |
| 991 | self.assertIsInstance(mock, Bar) |
| 992 | self.assertIsInstance(mock.extra, list) |
| 993 | finally: |
| 994 | patcher.stop() |
| 995 | |
| 996 | |
| 997 | def test_autospec_inherits(self): |
| 998 | FooClass = Foo |
| 999 | patcher = patch(foo_name, autospec=True) |
| 1000 | mock = patcher.start() |
| 1001 | try: |
| 1002 | self.assertIsInstance(mock, FooClass) |
| 1003 | self.assertIsInstance(mock(3), FooClass) |
| 1004 | finally: |
| 1005 | patcher.stop() |
| 1006 | |
| 1007 | |
| 1008 | def test_autospec_name(self): |
| 1009 | patcher = patch(foo_name, autospec=True) |
| 1010 | mock = patcher.start() |
| 1011 | |
| 1012 | try: |
| 1013 | self.assertIn(" name='Foo'", repr(mock)) |
| 1014 | self.assertIn(" name='Foo.f'", repr(mock.f)) |
| 1015 | self.assertIn(" name='Foo()'", repr(mock(None))) |
| 1016 | self.assertIn(" name='Foo().f'", repr(mock(None).f)) |
| 1017 | finally: |
| 1018 | patcher.stop() |
| 1019 | |
| 1020 | |
| 1021 | def test_tracebacks(self): |
| 1022 | @patch.object(Foo, 'f', object()) |
| 1023 | def test(): |
| 1024 | raise AssertionError |
| 1025 | try: |
| 1026 | test() |
| 1027 | except: |
| 1028 | err = sys.exc_info() |
| 1029 | |
| 1030 | result = unittest2.TextTestResult(None, None, 0) |
| 1031 | traceback = result._exc_info_to_string(err, self) |
| 1032 | self.assertIn('raise AssertionError', traceback) |
| 1033 | |
| 1034 | |
| 1035 | def test_new_callable_patch(self): |
| 1036 | patcher = patch(foo_name, new_callable=NonCallableMagicMock) |
| 1037 | |
| 1038 | m1 = patcher.start() |
| 1039 | patcher.stop() |
| 1040 | m2 = patcher.start() |
| 1041 | patcher.stop() |
| 1042 | |
| 1043 | self.assertIsNot(m1, m2) |
| 1044 | for mock in m1, m2: |
| 1045 | self.assertNotCallable(m1) |
| 1046 | |
| 1047 | |
| 1048 | def test_new_callable_patch_object(self): |
| 1049 | patcher = patch.object(Foo, 'f', new_callable=NonCallableMagicMock) |
| 1050 | |
| 1051 | m1 = patcher.start() |
| 1052 | patcher.stop() |
| 1053 | m2 = patcher.start() |
| 1054 | patcher.stop() |
| 1055 | |
| 1056 | self.assertIsNot(m1, m2) |
| 1057 | for mock in m1, m2: |
| 1058 | self.assertNotCallable(m1) |
| 1059 | |
| 1060 | |
| 1061 | def test_new_callable_keyword_arguments(self): |
| 1062 | class Bar(object): |
| 1063 | kwargs = None |
| 1064 | def __init__(self, **kwargs): |
| 1065 | Bar.kwargs = kwargs |
| 1066 | |
| 1067 | patcher = patch(foo_name, new_callable=Bar, arg1=1, arg2=2) |
| 1068 | m = patcher.start() |
| 1069 | try: |
| 1070 | self.assertIs(type(m), Bar) |
| 1071 | self.assertEqual(Bar.kwargs, dict(arg1=1, arg2=2)) |
| 1072 | finally: |
| 1073 | patcher.stop() |
| 1074 | |
| 1075 | |
| 1076 | def test_new_callable_spec(self): |
| 1077 | class Bar(object): |
| 1078 | kwargs = None |
| 1079 | def __init__(self, **kwargs): |
| 1080 | Bar.kwargs = kwargs |
| 1081 | |
| 1082 | patcher = patch(foo_name, new_callable=Bar, spec=Bar) |
| 1083 | patcher.start() |
| 1084 | try: |
| 1085 | self.assertEqual(Bar.kwargs, dict(spec=Bar)) |
| 1086 | finally: |
| 1087 | patcher.stop() |
| 1088 | |
| 1089 | patcher = patch(foo_name, new_callable=Bar, spec_set=Bar) |
| 1090 | patcher.start() |
| 1091 | try: |
| 1092 | self.assertEqual(Bar.kwargs, dict(spec_set=Bar)) |
| 1093 | finally: |
| 1094 | patcher.stop() |
| 1095 | |
| 1096 | |
| 1097 | def test_new_callable_create(self): |
| 1098 | non_existent_attr = '%s.weeeee' % foo_name |
| 1099 | p = patch(non_existent_attr, new_callable=NonCallableMock) |
| 1100 | self.assertRaises(AttributeError, p.start) |
| 1101 | |
| 1102 | p = patch(non_existent_attr, new_callable=NonCallableMock, |
| 1103 | create=True) |
| 1104 | m = p.start() |
| 1105 | try: |
| 1106 | self.assertNotCallable(m, magic=False) |
| 1107 | finally: |
| 1108 | p.stop() |
| 1109 | |
| 1110 | |
| 1111 | def test_new_callable_incompatible_with_new(self): |
| 1112 | self.assertRaises( |
| 1113 | ValueError, patch, foo_name, new=object(), new_callable=MagicMock |
| 1114 | ) |
| 1115 | self.assertRaises( |
| 1116 | ValueError, patch.object, Foo, 'f', new=object(), |
| 1117 | new_callable=MagicMock |
| 1118 | ) |
| 1119 | |
| 1120 | |
| 1121 | def test_new_callable_incompatible_with_autospec(self): |
| 1122 | self.assertRaises( |
| 1123 | ValueError, patch, foo_name, new_callable=MagicMock, |
| 1124 | autospec=True |
| 1125 | ) |
| 1126 | self.assertRaises( |
| 1127 | ValueError, patch.object, Foo, 'f', new_callable=MagicMock, |
| 1128 | autospec=True |
| 1129 | ) |
| 1130 | |
| 1131 | |
| 1132 | def test_new_callable_inherit_for_mocks(self): |
| 1133 | class MockSub(Mock): |
| 1134 | pass |
| 1135 | |
| 1136 | MockClasses = ( |
| 1137 | NonCallableMock, NonCallableMagicMock, MagicMock, Mock, MockSub |
| 1138 | ) |
| 1139 | for Klass in MockClasses: |
| 1140 | for arg in 'spec', 'spec_set': |
| 1141 | kwargs = {arg: True} |
| 1142 | p = patch(foo_name, new_callable=Klass, **kwargs) |
| 1143 | m = p.start() |
| 1144 | try: |
| 1145 | instance = m.return_value |
| 1146 | self.assertRaises(AttributeError, getattr, instance, 'x') |
| 1147 | finally: |
| 1148 | p.stop() |
| 1149 | |
| 1150 | |
| 1151 | def test_new_callable_inherit_non_mock(self): |
| 1152 | class NotAMock(object): |
| 1153 | def __init__(self, spec): |
| 1154 | self.spec = spec |
| 1155 | |
| 1156 | p = patch(foo_name, new_callable=NotAMock, spec=True) |
| 1157 | m = p.start() |
| 1158 | try: |
| 1159 | self.assertTrue(is_instance(m, NotAMock)) |
| 1160 | self.assertRaises(AttributeError, getattr, m, 'return_value') |
| 1161 | finally: |
| 1162 | p.stop() |
| 1163 | |
| 1164 | self.assertEqual(m.spec, Foo) |
| 1165 | |
| 1166 | |
| 1167 | def test_new_callable_class_decorating(self): |
| 1168 | test = self |
| 1169 | original = Foo |
| 1170 | class SomeTest(object): |
| 1171 | |
| 1172 | def _test(self, mock_foo): |
| 1173 | test.assertIsNot(Foo, original) |
| 1174 | test.assertIs(Foo, mock_foo) |
| 1175 | test.assertIsInstance(Foo, SomeClass) |
| 1176 | |
| 1177 | def test_two(self, mock_foo): |
| 1178 | self._test(mock_foo) |
| 1179 | def test_one(self, mock_foo): |
| 1180 | self._test(mock_foo) |
| 1181 | |
| 1182 | SomeTest = patch(foo_name, new_callable=SomeClass)(SomeTest) |
| 1183 | SomeTest().test_one() |
| 1184 | SomeTest().test_two() |
| 1185 | self.assertIs(Foo, original) |
| 1186 | |
| 1187 | |
| 1188 | def test_patch_multiple(self): |
| 1189 | original_foo = Foo |
| 1190 | original_f = Foo.f |
| 1191 | original_g = Foo.g |
| 1192 | |
| 1193 | patcher1 = patch.multiple(foo_name, f=1, g=2) |
| 1194 | patcher2 = patch.multiple(Foo, f=1, g=2) |
| 1195 | |
| 1196 | for patcher in patcher1, patcher2: |
| 1197 | patcher.start() |
| 1198 | try: |
| 1199 | self.assertIs(Foo, original_foo) |
| 1200 | self.assertEqual(Foo.f, 1) |
| 1201 | self.assertEqual(Foo.g, 2) |
| 1202 | finally: |
| 1203 | patcher.stop() |
| 1204 | |
| 1205 | self.assertIs(Foo, original_foo) |
| 1206 | self.assertEqual(Foo.f, original_f) |
| 1207 | self.assertEqual(Foo.g, original_g) |
| 1208 | |
| 1209 | |
| 1210 | @patch.multiple(foo_name, f=3, g=4) |
| 1211 | def test(): |
| 1212 | self.assertIs(Foo, original_foo) |
| 1213 | self.assertEqual(Foo.f, 3) |
| 1214 | self.assertEqual(Foo.g, 4) |
| 1215 | |
| 1216 | test() |
| 1217 | |
| 1218 | |
| 1219 | def test_patch_multiple_no_kwargs(self): |
| 1220 | self.assertRaises(ValueError, patch.multiple, foo_name) |
| 1221 | self.assertRaises(ValueError, patch.multiple, Foo) |
| 1222 | |
| 1223 | |
| 1224 | def test_patch_multiple_create_mocks(self): |
| 1225 | original_foo = Foo |
| 1226 | original_f = Foo.f |
| 1227 | original_g = Foo.g |
| 1228 | |
| 1229 | @patch.multiple(foo_name, f=DEFAULT, g=3, foo=DEFAULT) |
| 1230 | def test(f, foo): |
| 1231 | self.assertIs(Foo, original_foo) |
| 1232 | self.assertIs(Foo.f, f) |
| 1233 | self.assertEqual(Foo.g, 3) |
| 1234 | self.assertIs(Foo.foo, foo) |
| 1235 | self.assertTrue(is_instance(f, MagicMock)) |
| 1236 | self.assertTrue(is_instance(foo, MagicMock)) |
| 1237 | |
| 1238 | test() |
| 1239 | self.assertEqual(Foo.f, original_f) |
| 1240 | self.assertEqual(Foo.g, original_g) |
| 1241 | |
| 1242 | |
| 1243 | def test_patch_multiple_create_mocks_different_order(self): |
| 1244 | # bug revealed by Jython! |
| 1245 | original_f = Foo.f |
| 1246 | original_g = Foo.g |
| 1247 | |
| 1248 | patcher = patch.object(Foo, 'f', 3) |
| 1249 | patcher.attribute_name = 'f' |
| 1250 | |
| 1251 | other = patch.object(Foo, 'g', DEFAULT) |
| 1252 | other.attribute_name = 'g' |
| 1253 | patcher.additional_patchers = [other] |
| 1254 | |
| 1255 | @patcher |
| 1256 | def test(g): |
| 1257 | self.assertIs(Foo.g, g) |
| 1258 | self.assertEqual(Foo.f, 3) |
| 1259 | |
| 1260 | test() |
| 1261 | self.assertEqual(Foo.f, original_f) |
| 1262 | self.assertEqual(Foo.g, original_g) |
| 1263 | |
| 1264 | |
| 1265 | def test_patch_multiple_stacked_decorators(self): |
| 1266 | original_foo = Foo |
| 1267 | original_f = Foo.f |
| 1268 | original_g = Foo.g |
| 1269 | |
| 1270 | @patch.multiple(foo_name, f=DEFAULT) |
| 1271 | @patch.multiple(foo_name, foo=DEFAULT) |
| 1272 | @patch(foo_name + '.g') |
| 1273 | def test1(g, **kwargs): |
| 1274 | _test(g, **kwargs) |
| 1275 | |
| 1276 | @patch.multiple(foo_name, f=DEFAULT) |
| 1277 | @patch(foo_name + '.g') |
| 1278 | @patch.multiple(foo_name, foo=DEFAULT) |
| 1279 | def test2(g, **kwargs): |
| 1280 | _test(g, **kwargs) |
| 1281 | |
| 1282 | @patch(foo_name + '.g') |
| 1283 | @patch.multiple(foo_name, f=DEFAULT) |
| 1284 | @patch.multiple(foo_name, foo=DEFAULT) |
| 1285 | def test3(g, **kwargs): |
| 1286 | _test(g, **kwargs) |
| 1287 | |
| 1288 | def _test(g, **kwargs): |
| 1289 | f = kwargs.pop('f') |
| 1290 | foo = kwargs.pop('foo') |
| 1291 | self.assertFalse(kwargs) |
| 1292 | |
| 1293 | self.assertIs(Foo, original_foo) |
| 1294 | self.assertIs(Foo.f, f) |
| 1295 | self.assertIs(Foo.g, g) |
| 1296 | self.assertIs(Foo.foo, foo) |
| 1297 | self.assertTrue(is_instance(f, MagicMock)) |
| 1298 | self.assertTrue(is_instance(g, MagicMock)) |
| 1299 | self.assertTrue(is_instance(foo, MagicMock)) |
| 1300 | |
| 1301 | test1() |
| 1302 | test2() |
| 1303 | test3() |
| 1304 | self.assertEqual(Foo.f, original_f) |
| 1305 | self.assertEqual(Foo.g, original_g) |
| 1306 | |
| 1307 | |
| 1308 | def test_patch_multiple_create_mocks_patcher(self): |
| 1309 | original_foo = Foo |
| 1310 | original_f = Foo.f |
| 1311 | original_g = Foo.g |
| 1312 | |
| 1313 | patcher = patch.multiple(foo_name, f=DEFAULT, g=3, foo=DEFAULT) |
| 1314 | |
| 1315 | result = patcher.start() |
| 1316 | try: |
| 1317 | f = result['f'] |
| 1318 | foo = result['foo'] |
| 1319 | self.assertEqual(set(result), set(['f', 'foo'])) |
| 1320 | |
| 1321 | self.assertIs(Foo, original_foo) |
| 1322 | self.assertIs(Foo.f, f) |
| 1323 | self.assertIs(Foo.foo, foo) |
| 1324 | self.assertTrue(is_instance(f, MagicMock)) |
| 1325 | self.assertTrue(is_instance(foo, MagicMock)) |
| 1326 | finally: |
| 1327 | patcher.stop() |
| 1328 | |
| 1329 | self.assertEqual(Foo.f, original_f) |
| 1330 | self.assertEqual(Foo.g, original_g) |
| 1331 | |
| 1332 | |
| 1333 | def test_patch_multiple_decorating_class(self): |
| 1334 | test = self |
| 1335 | original_foo = Foo |
| 1336 | original_f = Foo.f |
| 1337 | original_g = Foo.g |
| 1338 | |
| 1339 | class SomeTest(object): |
| 1340 | |
| 1341 | def _test(self, f, foo): |
| 1342 | test.assertIs(Foo, original_foo) |
| 1343 | test.assertIs(Foo.f, f) |
| 1344 | test.assertEqual(Foo.g, 3) |
| 1345 | test.assertIs(Foo.foo, foo) |
| 1346 | test.assertTrue(is_instance(f, MagicMock)) |
| 1347 | test.assertTrue(is_instance(foo, MagicMock)) |
| 1348 | |
| 1349 | def test_two(self, f, foo): |
| 1350 | self._test(f, foo) |
| 1351 | def test_one(self, f, foo): |
| 1352 | self._test(f, foo) |
| 1353 | |
| 1354 | SomeTest = patch.multiple( |
| 1355 | foo_name, f=DEFAULT, g=3, foo=DEFAULT |
| 1356 | )(SomeTest) |
| 1357 | |
| 1358 | thing = SomeTest() |
| 1359 | thing.test_one() |
| 1360 | thing.test_two() |
| 1361 | |
| 1362 | self.assertEqual(Foo.f, original_f) |
| 1363 | self.assertEqual(Foo.g, original_g) |
| 1364 | |
| 1365 | |
| 1366 | def test_patch_multiple_create(self): |
| 1367 | patcher = patch.multiple(Foo, blam='blam') |
| 1368 | self.assertRaises(AttributeError, patcher.start) |
| 1369 | |
| 1370 | patcher = patch.multiple(Foo, blam='blam', create=True) |
| 1371 | patcher.start() |
| 1372 | try: |
| 1373 | self.assertEqual(Foo.blam, 'blam') |
| 1374 | finally: |
| 1375 | patcher.stop() |
| 1376 | |
| 1377 | self.assertFalse(hasattr(Foo, 'blam')) |
| 1378 | |
| 1379 | |
| 1380 | def test_patch_multiple_spec_set(self): |
| 1381 | # if spec_set works then we can assume that spec and autospec also |
| 1382 | # work as the underlying machinery is the same |
| 1383 | patcher = patch.multiple(Foo, foo=DEFAULT, spec_set=['a', 'b']) |
| 1384 | result = patcher.start() |
| 1385 | try: |
| 1386 | self.assertEqual(Foo.foo, result['foo']) |
| 1387 | Foo.foo.a(1) |
| 1388 | Foo.foo.b(2) |
| 1389 | Foo.foo.a.assert_called_with(1) |
| 1390 | Foo.foo.b.assert_called_with(2) |
| 1391 | self.assertRaises(AttributeError, setattr, Foo.foo, 'c', None) |
| 1392 | finally: |
| 1393 | patcher.stop() |
| 1394 | |
| 1395 | |
| 1396 | def test_patch_multiple_new_callable(self): |
| 1397 | class Thing(object): |
| 1398 | pass |
| 1399 | |
| 1400 | patcher = patch.multiple( |
| 1401 | Foo, f=DEFAULT, g=DEFAULT, new_callable=Thing |
| 1402 | ) |
| 1403 | result = patcher.start() |
| 1404 | try: |
| 1405 | self.assertIs(Foo.f, result['f']) |
| 1406 | self.assertIs(Foo.g, result['g']) |
| 1407 | self.assertIsInstance(Foo.f, Thing) |
| 1408 | self.assertIsInstance(Foo.g, Thing) |
| 1409 | self.assertIsNot(Foo.f, Foo.g) |
| 1410 | finally: |
| 1411 | patcher.stop() |
| 1412 | |
| 1413 | |
| 1414 | def test_nested_patch_failure(self): |
| 1415 | original_f = Foo.f |
| 1416 | original_g = Foo.g |
| 1417 | |
| 1418 | @patch.object(Foo, 'g', 1) |
| 1419 | @patch.object(Foo, 'missing', 1) |
| 1420 | @patch.object(Foo, 'f', 1) |
| 1421 | def thing1(): |
| 1422 | pass |
| 1423 | |
| 1424 | @patch.object(Foo, 'missing', 1) |
| 1425 | @patch.object(Foo, 'g', 1) |
| 1426 | @patch.object(Foo, 'f', 1) |
| 1427 | def thing2(): |
| 1428 | pass |
| 1429 | |
| 1430 | @patch.object(Foo, 'g', 1) |
| 1431 | @patch.object(Foo, 'f', 1) |
| 1432 | @patch.object(Foo, 'missing', 1) |
| 1433 | def thing3(): |
| 1434 | pass |
| 1435 | |
| 1436 | for func in thing1, thing2, thing3: |
| 1437 | self.assertRaises(AttributeError, func) |
| 1438 | self.assertEqual(Foo.f, original_f) |
| 1439 | self.assertEqual(Foo.g, original_g) |
| 1440 | |
| 1441 | |
| 1442 | def test_new_callable_failure(self): |
| 1443 | original_f = Foo.f |
| 1444 | original_g = Foo.g |
| 1445 | original_foo = Foo.foo |
| 1446 | |
| 1447 | def crasher(): |
| 1448 | raise NameError('crasher') |
| 1449 | |
| 1450 | @patch.object(Foo, 'g', 1) |
| 1451 | @patch.object(Foo, 'foo', new_callable=crasher) |
| 1452 | @patch.object(Foo, 'f', 1) |
| 1453 | def thing1(): |
| 1454 | pass |
| 1455 | |
| 1456 | @patch.object(Foo, 'foo', new_callable=crasher) |
| 1457 | @patch.object(Foo, 'g', 1) |
| 1458 | @patch.object(Foo, 'f', 1) |
| 1459 | def thing2(): |
| 1460 | pass |
| 1461 | |
| 1462 | @patch.object(Foo, 'g', 1) |
| 1463 | @patch.object(Foo, 'f', 1) |
| 1464 | @patch.object(Foo, 'foo', new_callable=crasher) |
| 1465 | def thing3(): |
| 1466 | pass |
| 1467 | |
| 1468 | for func in thing1, thing2, thing3: |
| 1469 | self.assertRaises(NameError, func) |
| 1470 | self.assertEqual(Foo.f, original_f) |
| 1471 | self.assertEqual(Foo.g, original_g) |
| 1472 | self.assertEqual(Foo.foo, original_foo) |
| 1473 | |
| 1474 | |
| 1475 | def test_patch_multiple_failure(self): |
| 1476 | original_f = Foo.f |
| 1477 | original_g = Foo.g |
| 1478 | |
| 1479 | patcher = patch.object(Foo, 'f', 1) |
| 1480 | patcher.attribute_name = 'f' |
| 1481 | |
| 1482 | good = patch.object(Foo, 'g', 1) |
| 1483 | good.attribute_name = 'g' |
| 1484 | |
| 1485 | bad = patch.object(Foo, 'missing', 1) |
| 1486 | bad.attribute_name = 'missing' |
| 1487 | |
| 1488 | for additionals in [good, bad], [bad, good]: |
| 1489 | patcher.additional_patchers = additionals |
| 1490 | |
| 1491 | @patcher |
| 1492 | def func(): |
| 1493 | pass |
| 1494 | |
| 1495 | self.assertRaises(AttributeError, func) |
| 1496 | self.assertEqual(Foo.f, original_f) |
| 1497 | self.assertEqual(Foo.g, original_g) |
| 1498 | |
| 1499 | |
| 1500 | def test_patch_multiple_new_callable_failure(self): |
| 1501 | original_f = Foo.f |
| 1502 | original_g = Foo.g |
| 1503 | original_foo = Foo.foo |
| 1504 | |
| 1505 | def crasher(): |
| 1506 | raise NameError('crasher') |
| 1507 | |
| 1508 | patcher = patch.object(Foo, 'f', 1) |
| 1509 | patcher.attribute_name = 'f' |
| 1510 | |
| 1511 | good = patch.object(Foo, 'g', 1) |
| 1512 | good.attribute_name = 'g' |
| 1513 | |
| 1514 | bad = patch.object(Foo, 'foo', new_callable=crasher) |
| 1515 | bad.attribute_name = 'foo' |
| 1516 | |
| 1517 | for additionals in [good, bad], [bad, good]: |
| 1518 | patcher.additional_patchers = additionals |
| 1519 | |
| 1520 | @patcher |
| 1521 | def func(): |
| 1522 | pass |
| 1523 | |
| 1524 | self.assertRaises(NameError, func) |
| 1525 | self.assertEqual(Foo.f, original_f) |
| 1526 | self.assertEqual(Foo.g, original_g) |
| 1527 | self.assertEqual(Foo.foo, original_foo) |
| 1528 | |
| 1529 | |
| 1530 | def test_patch_multiple_string_subclasses(self): |
| 1531 | for base in (str, unicode): |
| 1532 | Foo = type('Foo', (base,), {'fish': 'tasty'}) |
| 1533 | foo = Foo() |
| 1534 | @patch.multiple(foo, fish='nearly gone') |
| 1535 | def test(): |
| 1536 | self.assertEqual(foo.fish, 'nearly gone') |
| 1537 | |
| 1538 | test() |
| 1539 | self.assertEqual(foo.fish, 'tasty') |
| 1540 | |
| 1541 | |
| 1542 | @patch('mock.patch.TEST_PREFIX', 'foo') |
| 1543 | def test_patch_test_prefix(self): |
| 1544 | class Foo(object): |
| 1545 | thing = 'original' |
| 1546 | |
| 1547 | def foo_one(self): |
| 1548 | return self.thing |
| 1549 | def foo_two(self): |
| 1550 | return self.thing |
| 1551 | def test_one(self): |
| 1552 | return self.thing |
| 1553 | def test_two(self): |
| 1554 | return self.thing |
| 1555 | |
| 1556 | Foo = patch.object(Foo, 'thing', 'changed')(Foo) |
| 1557 | |
| 1558 | foo = Foo() |
| 1559 | self.assertEqual(foo.foo_one(), 'changed') |
| 1560 | self.assertEqual(foo.foo_two(), 'changed') |
| 1561 | self.assertEqual(foo.test_one(), 'original') |
| 1562 | self.assertEqual(foo.test_two(), 'original') |
| 1563 | |
| 1564 | |
| 1565 | @patch('mock.patch.TEST_PREFIX', 'bar') |
| 1566 | def test_patch_dict_test_prefix(self): |
| 1567 | class Foo(object): |
| 1568 | def bar_one(self): |
| 1569 | return dict(the_dict) |
| 1570 | def bar_two(self): |
| 1571 | return dict(the_dict) |
| 1572 | def test_one(self): |
| 1573 | return dict(the_dict) |
| 1574 | def test_two(self): |
| 1575 | return dict(the_dict) |
| 1576 | |
| 1577 | the_dict = {'key': 'original'} |
| 1578 | Foo = patch.dict(the_dict, key='changed')(Foo) |
| 1579 | |
| 1580 | foo =Foo() |
| 1581 | self.assertEqual(foo.bar_one(), {'key': 'changed'}) |
| 1582 | self.assertEqual(foo.bar_two(), {'key': 'changed'}) |
| 1583 | self.assertEqual(foo.test_one(), {'key': 'original'}) |
| 1584 | self.assertEqual(foo.test_two(), {'key': 'original'}) |
| 1585 | |
| 1586 | |
| 1587 | def test_patch_with_spec_mock_repr(self): |
| 1588 | for arg in ('spec', 'autospec', 'spec_set'): |
| 1589 | p = patch('%s.SomeClass' % __name__, **{arg: True}) |
| 1590 | m = p.start() |
| 1591 | try: |
| 1592 | self.assertIn(" name='SomeClass'", repr(m)) |
| 1593 | self.assertIn(" name='SomeClass.class_attribute'", |
| 1594 | repr(m.class_attribute)) |
| 1595 | self.assertIn(" name='SomeClass()'", repr(m())) |
| 1596 | self.assertIn(" name='SomeClass().class_attribute'", |
| 1597 | repr(m().class_attribute)) |
| 1598 | finally: |
| 1599 | p.stop() |
| 1600 | |
| 1601 | |
| 1602 | def test_patch_nested_autospec_repr(self): |
| 1603 | p = patch('tests.support', autospec=True) |
| 1604 | m = p.start() |
| 1605 | try: |
| 1606 | self.assertIn(" name='support.SomeClass.wibble()'", |
| 1607 | repr(m.SomeClass.wibble())) |
| 1608 | self.assertIn(" name='support.SomeClass().wibble()'", |
| 1609 | repr(m.SomeClass().wibble())) |
| 1610 | finally: |
| 1611 | p.stop() |
| 1612 | |
| 1613 | |
| 1614 | def test_mock_calls_with_patch(self): |
| 1615 | for arg in ('spec', 'autospec', 'spec_set'): |
| 1616 | p = patch('%s.SomeClass' % __name__, **{arg: True}) |
| 1617 | m = p.start() |
| 1618 | try: |
| 1619 | m.wibble() |
| 1620 | |
| 1621 | kalls = [call.wibble()] |
| 1622 | self.assertEqual(m.mock_calls, kalls) |
| 1623 | self.assertEqual(m.method_calls, kalls) |
| 1624 | self.assertEqual(m.wibble.mock_calls, [call()]) |
| 1625 | |
| 1626 | result = m() |
| 1627 | kalls.append(call()) |
| 1628 | self.assertEqual(m.mock_calls, kalls) |
| 1629 | |
| 1630 | result.wibble() |
| 1631 | kalls.append(call().wibble()) |
| 1632 | self.assertEqual(m.mock_calls, kalls) |
| 1633 | |
| 1634 | self.assertEqual(result.mock_calls, [call.wibble()]) |
| 1635 | self.assertEqual(result.wibble.mock_calls, [call()]) |
| 1636 | self.assertEqual(result.method_calls, [call.wibble()]) |
| 1637 | finally: |
| 1638 | p.stop() |
| 1639 | |
| 1640 | |
| 1641 | def test_patch_imports_lazily(self): |
| 1642 | sys.modules.pop('squizz', None) |
| 1643 | |
| 1644 | p1 = patch('squizz.squozz') |
| 1645 | self.assertRaises(ImportError, p1.start) |
| 1646 | |
| 1647 | squizz = Mock() |
| 1648 | squizz.squozz = 6 |
| 1649 | sys.modules['squizz'] = squizz |
| 1650 | p1 = patch('squizz.squozz') |
| 1651 | squizz.squozz = 3 |
| 1652 | p1.start() |
| 1653 | p1.stop() |
| 1654 | self.assertEqual(squizz.squozz, 3) |
| 1655 | |
| 1656 | |
Kumar McMillan | 5b522f0 | 2012-03-14 23:28:31 -0500 | [diff] [blame] | 1657 | def test_patch_propogrates_exc_on_exit(self): |
Kumar McMillan | 5b522f0 | 2012-03-14 23:28:31 -0500 | [diff] [blame] | 1658 | class holder: |
| 1659 | exc_info = None, None, None |
| 1660 | |
| 1661 | class custom_patch(_patch): |
| 1662 | def __exit__(self, etype=None, val=None, tb=None): |
| 1663 | _patch.__exit__(self, etype, val, tb) |
| 1664 | holder.exc_info = etype, val, tb |
| 1665 | stop = __exit__ |
| 1666 | |
| 1667 | def with_custom_patch(target): |
| 1668 | getter, attribute = _get_target(target) |
| 1669 | return custom_patch( |
Michael Foord | 08f4755 | 2012-03-25 17:39:04 +0100 | [diff] [blame] | 1670 | getter, attribute, DEFAULT, None, False, None, |
| 1671 | None, None, {} |
Kumar McMillan | 5b522f0 | 2012-03-14 23:28:31 -0500 | [diff] [blame] | 1672 | ) |
| 1673 | |
Michael Foord | 7c2570e | 2012-03-20 00:49:43 +0000 | [diff] [blame] | 1674 | @with_custom_patch('squizz.squozz') |
Kumar McMillan | 5b522f0 | 2012-03-14 23:28:31 -0500 | [diff] [blame] | 1675 | def test(mock): |
| 1676 | raise RuntimeError |
Kumar McMillan | 5b522f0 | 2012-03-14 23:28:31 -0500 | [diff] [blame] | 1677 | |
| 1678 | self.assertRaises(RuntimeError, test) |
Michael Foord | 7c2570e | 2012-03-20 00:49:43 +0000 | [diff] [blame] | 1679 | self.assertIs(holder.exc_info[0], RuntimeError) |
| 1680 | self.assertIsNotNone(holder.exc_info[1], |
Kumar McMillan | 5b522f0 | 2012-03-14 23:28:31 -0500 | [diff] [blame] | 1681 | 'exception value not propgated') |
Michael Foord | 7c2570e | 2012-03-20 00:49:43 +0000 | [diff] [blame] | 1682 | self.assertIsNotNone(holder.exc_info[2], |
Kumar McMillan | 5b522f0 | 2012-03-14 23:28:31 -0500 | [diff] [blame] | 1683 | 'exception traceback not propgated') |
| 1684 | |
| 1685 | |
Michael Foord | 669048d | 2012-03-25 02:00:31 +0100 | [diff] [blame] | 1686 | def test_create_and_specs(self): |
| 1687 | for kwarg in ('spec', 'spec_set', 'autospec'): |
| 1688 | p = patch('%s.doesnotexist' % __name__, create=True, |
| 1689 | **{kwarg: True}) |
| 1690 | self.assertRaises(TypeError, p.start) |
| 1691 | self.assertRaises(NameError, lambda: doesnotexist) |
| 1692 | |
| 1693 | # check that spec with create is innocuous if the original exists |
Michael Foord | 6e71f17 | 2012-03-25 19:35:52 +0100 | [diff] [blame] | 1694 | p = patch(MODNAME, create=True, **{kwarg: True}) |
| 1695 | p.start() |
| 1696 | p.stop() |
Michael Foord | 669048d | 2012-03-25 02:00:31 +0100 | [diff] [blame] | 1697 | |
Michael Foord | 1e68bec | 2012-03-03 22:24:30 +0000 | [diff] [blame] | 1698 | |
Michael Foord | 08f4755 | 2012-03-25 17:39:04 +0100 | [diff] [blame] | 1699 | def test_multiple_specs(self): |
| 1700 | original = PTModule |
| 1701 | for kwarg in ('spec', 'spec_set'): |
| 1702 | p = patch(MODNAME, autospec=0, **{kwarg: 0}) |
| 1703 | self.assertRaises(TypeError, p.start) |
| 1704 | self.assertIs(PTModule, original) |
| 1705 | |
| 1706 | for kwarg in ('spec', 'autospec'): |
| 1707 | p = patch(MODNAME, spec_set=0, **{kwarg: 0}) |
| 1708 | self.assertRaises(TypeError, p.start) |
| 1709 | self.assertIs(PTModule, original) |
| 1710 | |
| 1711 | for kwarg in ('spec_set', 'autospec'): |
| 1712 | p = patch(MODNAME, spec=0, **{kwarg: 0}) |
| 1713 | self.assertRaises(TypeError, p.start) |
| 1714 | self.assertIs(PTModule, original) |
| 1715 | |
| 1716 | |
| 1717 | def test_specs_false_instead_of_none(self): |
| 1718 | p = patch(MODNAME, spec=False, spec_set=False, autospec=False) |
| 1719 | mock = p.start() |
| 1720 | try: |
| 1721 | # no spec should have been set, so attribute access should not fail |
| 1722 | mock.does_not_exist |
| 1723 | mock.does_not_exist = 3 |
| 1724 | finally: |
| 1725 | p.stop() |
| 1726 | |
| 1727 | |
| 1728 | def test_falsey_spec(self): |
| 1729 | for kwarg in ('spec', 'autospec', 'spec_set'): |
| 1730 | p = patch(MODNAME, **{kwarg: 0}) |
| 1731 | m = p.start() |
| 1732 | try: |
| 1733 | self.assertRaises(AttributeError, getattr, m, 'doesnotexit') |
| 1734 | finally: |
| 1735 | p.stop() |
| 1736 | |
| 1737 | |
| 1738 | def test_spec_set_true(self): |
| 1739 | for kwarg in ('spec', 'autospec'): |
| 1740 | p = patch(MODNAME, spec_set=True, **{kwarg: True}) |
| 1741 | m = p.start() |
| 1742 | try: |
| 1743 | self.assertRaises(AttributeError, setattr, m, |
| 1744 | 'doesnotexist', 'something') |
| 1745 | self.assertRaises(AttributeError, getattr, m, 'doesnotexist') |
| 1746 | finally: |
| 1747 | p.stop() |
| 1748 | |
| 1749 | |
Michael Foord | 5c241d5 | 2012-03-25 19:54:05 +0100 | [diff] [blame] | 1750 | def test_callable_spec_as_list(self): |
| 1751 | spec = ('__call__',) |
| 1752 | p = patch(MODNAME, spec=spec) |
| 1753 | m = p.start() |
| 1754 | try: |
| 1755 | self.assertTrue(callable(m)) |
| 1756 | finally: |
| 1757 | p.stop() |
| 1758 | |
| 1759 | |
| 1760 | def test_not_callable_spec_as_list(self): |
| 1761 | spec = ('foo', 'bar') |
| 1762 | p = patch(MODNAME, spec=spec) |
| 1763 | m = p.start() |
| 1764 | try: |
| 1765 | self.assertFalse(callable(m)) |
| 1766 | finally: |
| 1767 | p.stop() |
| 1768 | |
| 1769 | |
Michael Foord | 99dc7a5 | 2012-06-10 20:29:40 +0100 | [diff] [blame] | 1770 | def test_patch_stopall(self): |
| 1771 | unlink = os.unlink |
| 1772 | chdir = os.chdir |
| 1773 | path = os.path |
| 1774 | patch('os.unlink', something).start() |
| 1775 | patch('os.chdir', something_else).start() |
| 1776 | |
| 1777 | @patch('os.path') |
| 1778 | def patched(mock_path): |
| 1779 | patch.stopall() |
| 1780 | self.assertIs(os.path, mock_path) |
| 1781 | self.assertIs(os.unlink, unlink) |
| 1782 | self.assertIs(os.chdir, chdir) |
| 1783 | |
| 1784 | patched() |
| 1785 | self.assertIs(os.path, path) |
| 1786 | |
| 1787 | |
Michael Foord | 3860ed4 | 2012-11-05 21:38:05 +0000 | [diff] [blame] | 1788 | def test_wrapped_patch(self): |
| 1789 | decorated = patch('sys.modules')(function) |
| 1790 | self.assertIs(decorated.__wrapped__, function) |
| 1791 | |
| 1792 | |
Michael Foord | b107953 | 2012-11-07 17:08:38 +0000 | [diff] [blame] | 1793 | def test_wrapped_several_times_patch(self): |
| 1794 | decorated = patch('sys.modules')(function) |
| 1795 | decorated = patch('sys.modules')(decorated) |
| 1796 | self.assertIs(decorated.__wrapped__, function) |
| 1797 | |
| 1798 | |
Michael Foord | 3860ed4 | 2012-11-05 21:38:05 +0000 | [diff] [blame] | 1799 | def test_wrapped_patch_object(self): |
| 1800 | decorated = patch.object(sys, 'modules')(function) |
| 1801 | self.assertIs(decorated.__wrapped__, function) |
| 1802 | |
| 1803 | |
| 1804 | def test_wrapped_patch_dict(self): |
| 1805 | decorated = patch.dict('sys.modules')(function) |
| 1806 | self.assertIs(decorated.__wrapped__, function) |
| 1807 | |
| 1808 | |
| 1809 | def test_wrapped_patch_multiple(self): |
| 1810 | decorated = patch.multiple('sys', modules={})(function) |
| 1811 | self.assertIs(decorated.__wrapped__, function) |
| 1812 | |
Michael Foord | 99dc7a5 | 2012-06-10 20:29:40 +0100 | [diff] [blame] | 1813 | |
Michael Foord | 1e68bec | 2012-03-03 22:24:30 +0000 | [diff] [blame] | 1814 | if __name__ == '__main__': |
| 1815 | unittest2.main() |