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Diffstat (limited to 'Lib/unittest/test/testmock/testpatch.py')
| -rw-r--r-- | Lib/unittest/test/testmock/testpatch.py | 1953 |
1 files changed, 0 insertions, 1953 deletions
diff --git a/Lib/unittest/test/testmock/testpatch.py b/Lib/unittest/test/testmock/testpatch.py deleted file mode 100644 index 8ab63a1317d..00000000000 --- a/Lib/unittest/test/testmock/testpatch.py +++ /dev/null @@ -1,1953 +0,0 @@ -# Copyright (C) 2007-2012 Michael Foord & the mock team -# E-mail: fuzzyman AT voidspace DOT org DOT uk -# http://www.voidspace.org.uk/python/mock/ - -import os -import sys -from collections import OrderedDict - -import unittest -from unittest.test.testmock import support -from unittest.test.testmock.support import SomeClass, is_instance - -from test.test_importlib.util import uncache -from unittest.mock import ( - NonCallableMock, CallableMixin, sentinel, - MagicMock, Mock, NonCallableMagicMock, patch, _patch, - DEFAULT, call, _get_target -) - - -builtin_string = 'builtins' - -PTModule = sys.modules[__name__] -MODNAME = '%s.PTModule' % __name__ - - -def _get_proxy(obj, get_only=True): - class Proxy(object): - def __getattr__(self, name): - return getattr(obj, name) - if not get_only: - def __setattr__(self, name, value): - setattr(obj, name, value) - def __delattr__(self, name): - delattr(obj, name) - Proxy.__setattr__ = __setattr__ - Proxy.__delattr__ = __delattr__ - return Proxy() - - -# for use in the test -something = sentinel.Something -something_else = sentinel.SomethingElse - - -class Foo(object): - def __init__(self, a): pass - def f(self, a): pass - def g(self): pass - foo = 'bar' - - @staticmethod - def static_method(): pass - - @classmethod - def class_method(cls): pass - - class Bar(object): - def a(self): pass - -foo_name = '%s.Foo' % __name__ - - -def function(a, b=Foo): pass - - -class Container(object): - def __init__(self): - self.values = {} - - def __getitem__(self, name): - return self.values[name] - - def __setitem__(self, name, value): - self.values[name] = value - - def __delitem__(self, name): - del self.values[name] - - def __iter__(self): - return iter(self.values) - - - -class PatchTest(unittest.TestCase): - - def assertNotCallable(self, obj, magic=True): - MockClass = NonCallableMagicMock - if not magic: - MockClass = NonCallableMock - - self.assertRaises(TypeError, obj) - self.assertTrue(is_instance(obj, MockClass)) - self.assertFalse(is_instance(obj, CallableMixin)) - - - def test_single_patchobject(self): - class Something(object): - attribute = sentinel.Original - - @patch.object(Something, 'attribute', sentinel.Patched) - def test(): - self.assertEqual(Something.attribute, sentinel.Patched, "unpatched") - - test() - self.assertEqual(Something.attribute, sentinel.Original, - "patch not restored") - - def test_patchobject_with_string_as_target(self): - msg = "'Something' must be the actual object to be patched, not a str" - with self.assertRaisesRegex(TypeError, msg): - patch.object('Something', 'do_something') - - def test_patchobject_with_none(self): - class Something(object): - attribute = sentinel.Original - - @patch.object(Something, 'attribute', None) - def test(): - self.assertIsNone(Something.attribute, "unpatched") - - test() - self.assertEqual(Something.attribute, sentinel.Original, - "patch not restored") - - - def test_multiple_patchobject(self): - class Something(object): - attribute = sentinel.Original - next_attribute = sentinel.Original2 - - @patch.object(Something, 'attribute', sentinel.Patched) - @patch.object(Something, 'next_attribute', sentinel.Patched2) - def test(): - self.assertEqual(Something.attribute, sentinel.Patched, - "unpatched") - self.assertEqual(Something.next_attribute, sentinel.Patched2, - "unpatched") - - test() - self.assertEqual(Something.attribute, sentinel.Original, - "patch not restored") - self.assertEqual(Something.next_attribute, sentinel.Original2, - "patch not restored") - - - def test_object_lookup_is_quite_lazy(self): - global something - original = something - @patch('%s.something' % __name__, sentinel.Something2) - def test(): - pass - - try: - something = sentinel.replacement_value - test() - self.assertEqual(something, sentinel.replacement_value) - finally: - something = original - - - def test_patch(self): - @patch('%s.something' % __name__, sentinel.Something2) - def test(): - self.assertEqual(PTModule.something, sentinel.Something2, - "unpatched") - - test() - self.assertEqual(PTModule.something, sentinel.Something, - "patch not restored") - - @patch('%s.something' % __name__, sentinel.Something2) - @patch('%s.something_else' % __name__, sentinel.SomethingElse) - def test(): - self.assertEqual(PTModule.something, sentinel.Something2, - "unpatched") - self.assertEqual(PTModule.something_else, sentinel.SomethingElse, - "unpatched") - - self.assertEqual(PTModule.something, sentinel.Something, - "patch not restored") - self.assertEqual(PTModule.something_else, sentinel.SomethingElse, - "patch not restored") - - # Test the patching and restoring works a second time - test() - - self.assertEqual(PTModule.something, sentinel.Something, - "patch not restored") - self.assertEqual(PTModule.something_else, sentinel.SomethingElse, - "patch not restored") - - mock = Mock() - mock.return_value = sentinel.Handle - @patch('%s.open' % builtin_string, mock) - def test(): - self.assertEqual(open('filename', 'r'), sentinel.Handle, - "open not patched") - test() - test() - - self.assertNotEqual(open, mock, "patch not restored") - - - def test_patch_class_attribute(self): - @patch('%s.SomeClass.class_attribute' % __name__, - sentinel.ClassAttribute) - def test(): - self.assertEqual(PTModule.SomeClass.class_attribute, - sentinel.ClassAttribute, "unpatched") - test() - - self.assertIsNone(PTModule.SomeClass.class_attribute, - "patch not restored") - - - def test_patchobject_with_default_mock(self): - class Test(object): - something = sentinel.Original - something2 = sentinel.Original2 - - @patch.object(Test, 'something') - def test(mock): - self.assertEqual(mock, Test.something, - "Mock not passed into test function") - self.assertIsInstance(mock, MagicMock, - "patch with two arguments did not create a mock") - - test() - - @patch.object(Test, 'something') - @patch.object(Test, 'something2') - def test(this1, this2, mock1, mock2): - self.assertEqual(this1, sentinel.this1, - "Patched function didn't receive initial argument") - self.assertEqual(this2, sentinel.this2, - "Patched function didn't receive second argument") - self.assertEqual(mock1, Test.something2, - "Mock not passed into test function") - self.assertEqual(mock2, Test.something, - "Second Mock not passed into test function") - self.assertIsInstance(mock2, MagicMock, - "patch with two arguments did not create a mock") - self.assertIsInstance(mock2, MagicMock, - "patch with two arguments did not create a mock") - - # A hack to test that new mocks are passed the second time - self.assertNotEqual(outerMock1, mock1, "unexpected value for mock1") - self.assertNotEqual(outerMock2, mock2, "unexpected value for mock1") - return mock1, mock2 - - outerMock1 = outerMock2 = None - outerMock1, outerMock2 = test(sentinel.this1, sentinel.this2) - - # Test that executing a second time creates new mocks - test(sentinel.this1, sentinel.this2) - - - def test_patch_with_spec(self): - @patch('%s.SomeClass' % __name__, spec=SomeClass) - def test(MockSomeClass): - self.assertEqual(SomeClass, MockSomeClass) - self.assertTrue(is_instance(SomeClass.wibble, MagicMock)) - self.assertRaises(AttributeError, lambda: SomeClass.not_wibble) - - test() - - - def test_patchobject_with_spec(self): - @patch.object(SomeClass, 'class_attribute', spec=SomeClass) - def test(MockAttribute): - self.assertEqual(SomeClass.class_attribute, MockAttribute) - self.assertTrue(is_instance(SomeClass.class_attribute.wibble, - MagicMock)) - self.assertRaises(AttributeError, - lambda: SomeClass.class_attribute.not_wibble) - - test() - - - def test_patch_with_spec_as_list(self): - @patch('%s.SomeClass' % __name__, spec=['wibble']) - def test(MockSomeClass): - self.assertEqual(SomeClass, MockSomeClass) - self.assertTrue(is_instance(SomeClass.wibble, MagicMock)) - self.assertRaises(AttributeError, lambda: SomeClass.not_wibble) - - test() - - - def test_patchobject_with_spec_as_list(self): - @patch.object(SomeClass, 'class_attribute', spec=['wibble']) - def test(MockAttribute): - self.assertEqual(SomeClass.class_attribute, MockAttribute) - self.assertTrue(is_instance(SomeClass.class_attribute.wibble, - MagicMock)) - self.assertRaises(AttributeError, - lambda: SomeClass.class_attribute.not_wibble) - - test() - - - def test_nested_patch_with_spec_as_list(self): - # regression test for nested decorators - @patch('%s.open' % builtin_string) - @patch('%s.SomeClass' % __name__, spec=['wibble']) - def test(MockSomeClass, MockOpen): - self.assertEqual(SomeClass, MockSomeClass) - self.assertTrue(is_instance(SomeClass.wibble, MagicMock)) - self.assertRaises(AttributeError, lambda: SomeClass.not_wibble) - test() - - - def test_patch_with_spec_as_boolean(self): - @patch('%s.SomeClass' % __name__, spec=True) - def test(MockSomeClass): - self.assertEqual(SomeClass, MockSomeClass) - # Should not raise attribute error - MockSomeClass.wibble - - self.assertRaises(AttributeError, lambda: MockSomeClass.not_wibble) - - test() - - - def test_patch_object_with_spec_as_boolean(self): - @patch.object(PTModule, 'SomeClass', spec=True) - def test(MockSomeClass): - self.assertEqual(SomeClass, MockSomeClass) - # Should not raise attribute error - MockSomeClass.wibble - - self.assertRaises(AttributeError, lambda: MockSomeClass.not_wibble) - - test() - - - def test_patch_class_acts_with_spec_is_inherited(self): - @patch('%s.SomeClass' % __name__, spec=True) - def test(MockSomeClass): - self.assertTrue(is_instance(MockSomeClass, MagicMock)) - instance = MockSomeClass() - self.assertNotCallable(instance) - # Should not raise attribute error - instance.wibble - - self.assertRaises(AttributeError, lambda: instance.not_wibble) - - test() - - - def test_patch_with_create_mocks_non_existent_attributes(self): - @patch('%s.frooble' % builtin_string, sentinel.Frooble, create=True) - def test(): - self.assertEqual(frooble, sentinel.Frooble) - - test() - self.assertRaises(NameError, lambda: frooble) - - - def test_patchobject_with_create_mocks_non_existent_attributes(self): - @patch.object(SomeClass, 'frooble', sentinel.Frooble, create=True) - def test(): - self.assertEqual(SomeClass.frooble, sentinel.Frooble) - - test() - self.assertFalse(hasattr(SomeClass, 'frooble')) - - - def test_patch_wont_create_by_default(self): - with self.assertRaises(AttributeError): - @patch('%s.frooble' % builtin_string, sentinel.Frooble) - def test(): pass - - test() - self.assertRaises(NameError, lambda: frooble) - - - def test_patchobject_wont_create_by_default(self): - with self.assertRaises(AttributeError): - @patch.object(SomeClass, 'ord', sentinel.Frooble) - def test(): pass - test() - self.assertFalse(hasattr(SomeClass, 'ord')) - - - def test_patch_builtins_without_create(self): - @patch(__name__+'.ord') - def test_ord(mock_ord): - mock_ord.return_value = 101 - return ord('c') - - @patch(__name__+'.open') - def test_open(mock_open): - m = mock_open.return_value - m.read.return_value = 'abcd' - - fobj = open('doesnotexists.txt') - data = fobj.read() - fobj.close() - return data - - self.assertEqual(test_ord(), 101) - self.assertEqual(test_open(), 'abcd') - - - def test_patch_with_static_methods(self): - class Foo(object): - @staticmethod - def woot(): - return sentinel.Static - - @patch.object(Foo, 'woot', staticmethod(lambda: sentinel.Patched)) - def anonymous(): - self.assertEqual(Foo.woot(), sentinel.Patched) - anonymous() - - self.assertEqual(Foo.woot(), sentinel.Static) - - - def test_patch_local(self): - foo = sentinel.Foo - @patch.object(sentinel, 'Foo', 'Foo') - def anonymous(): - self.assertEqual(sentinel.Foo, 'Foo') - anonymous() - - self.assertEqual(sentinel.Foo, foo) - - - def test_patch_slots(self): - class Foo(object): - __slots__ = ('Foo',) - - foo = Foo() - foo.Foo = sentinel.Foo - - @patch.object(foo, 'Foo', 'Foo') - def anonymous(): - self.assertEqual(foo.Foo, 'Foo') - anonymous() - - self.assertEqual(foo.Foo, sentinel.Foo) - - - def test_patchobject_class_decorator(self): - class Something(object): - attribute = sentinel.Original - - class Foo(object): - def test_method(other_self): - self.assertEqual(Something.attribute, sentinel.Patched, - "unpatched") - def not_test_method(other_self): - self.assertEqual(Something.attribute, sentinel.Original, - "non-test method patched") - - Foo = patch.object(Something, 'attribute', sentinel.Patched)(Foo) - - f = Foo() - f.test_method() - f.not_test_method() - - self.assertEqual(Something.attribute, sentinel.Original, - "patch not restored") - - - def test_patch_class_decorator(self): - class Something(object): - attribute = sentinel.Original - - class Foo(object): - - test_class_attr = 'whatever' - - def test_method(other_self, mock_something): - self.assertEqual(PTModule.something, mock_something, - "unpatched") - def not_test_method(other_self): - self.assertEqual(PTModule.something, sentinel.Something, - "non-test method patched") - Foo = patch('%s.something' % __name__)(Foo) - - f = Foo() - f.test_method() - f.not_test_method() - - self.assertEqual(Something.attribute, sentinel.Original, - "patch not restored") - self.assertEqual(PTModule.something, sentinel.Something, - "patch not restored") - - - def test_patchobject_twice(self): - class Something(object): - attribute = sentinel.Original - next_attribute = sentinel.Original2 - - @patch.object(Something, 'attribute', sentinel.Patched) - @patch.object(Something, 'attribute', sentinel.Patched) - def test(): - self.assertEqual(Something.attribute, sentinel.Patched, "unpatched") - - test() - - self.assertEqual(Something.attribute, sentinel.Original, - "patch not restored") - - - def test_patch_dict(self): - foo = {'initial': object(), 'other': 'something'} - original = foo.copy() - - @patch.dict(foo) - def test(): - foo['a'] = 3 - del foo['initial'] - foo['other'] = 'something else' - - test() - - self.assertEqual(foo, original) - - @patch.dict(foo, {'a': 'b'}) - def test(): - self.assertEqual(len(foo), 3) - self.assertEqual(foo['a'], 'b') - - test() - - self.assertEqual(foo, original) - - @patch.dict(foo, [('a', 'b')]) - def test(): - self.assertEqual(len(foo), 3) - self.assertEqual(foo['a'], 'b') - - test() - - self.assertEqual(foo, original) - - - def test_patch_dict_with_container_object(self): - foo = Container() - foo['initial'] = object() - foo['other'] = 'something' - - original = foo.values.copy() - - @patch.dict(foo) - def test(): - foo['a'] = 3 - del foo['initial'] - foo['other'] = 'something else' - - test() - - self.assertEqual(foo.values, original) - - @patch.dict(foo, {'a': 'b'}) - def test(): - self.assertEqual(len(foo.values), 3) - self.assertEqual(foo['a'], 'b') - - test() - - self.assertEqual(foo.values, original) - - - def test_patch_dict_with_clear(self): - foo = {'initial': object(), 'other': 'something'} - original = foo.copy() - - @patch.dict(foo, clear=True) - def test(): - self.assertEqual(foo, {}) - foo['a'] = 3 - foo['other'] = 'something else' - - test() - - self.assertEqual(foo, original) - - @patch.dict(foo, {'a': 'b'}, clear=True) - def test(): - self.assertEqual(foo, {'a': 'b'}) - - test() - - self.assertEqual(foo, original) - - @patch.dict(foo, [('a', 'b')], clear=True) - def test(): - self.assertEqual(foo, {'a': 'b'}) - - test() - - self.assertEqual(foo, original) - - - def test_patch_dict_with_container_object_and_clear(self): - foo = Container() - foo['initial'] = object() - foo['other'] = 'something' - - original = foo.values.copy() - - @patch.dict(foo, clear=True) - def test(): - self.assertEqual(foo.values, {}) - foo['a'] = 3 - foo['other'] = 'something else' - - test() - - self.assertEqual(foo.values, original) - - @patch.dict(foo, {'a': 'b'}, clear=True) - def test(): - self.assertEqual(foo.values, {'a': 'b'}) - - test() - - self.assertEqual(foo.values, original) - - - def test_patch_dict_as_context_manager(self): - foo = {'a': 'b'} - with patch.dict(foo, a='c') as patched: - self.assertEqual(patched, {'a': 'c'}) - self.assertEqual(foo, {'a': 'b'}) - - - def test_name_preserved(self): - foo = {} - - @patch('%s.SomeClass' % __name__, object()) - @patch('%s.SomeClass' % __name__, object(), autospec=True) - @patch.object(SomeClass, object()) - @patch.dict(foo) - def some_name(): pass - - self.assertEqual(some_name.__name__, 'some_name') - - - def test_patch_with_exception(self): - foo = {} - - @patch.dict(foo, {'a': 'b'}) - def test(): - raise NameError('Konrad') - - with self.assertRaises(NameError): - test() - - self.assertEqual(foo, {}) - - - def test_patch_dict_with_string(self): - @patch.dict('os.environ', {'konrad_delong': 'some value'}) - def test(): - self.assertIn('konrad_delong', os.environ) - - test() - - - def test_patch_dict_decorator_resolution(self): - # bpo-35512: Ensure that patch with a string target resolves to - # the new dictionary during function call - original = support.target.copy() - - @patch.dict('unittest.test.testmock.support.target', {'bar': 'BAR'}) - def test(): - self.assertEqual(support.target, {'foo': 'BAZ', 'bar': 'BAR'}) - - try: - support.target = {'foo': 'BAZ'} - test() - self.assertEqual(support.target, {'foo': 'BAZ'}) - finally: - support.target = original - - - def test_patch_spec_set(self): - @patch('%s.SomeClass' % __name__, spec=SomeClass, spec_set=True) - def test(MockClass): - MockClass.z = 'foo' - - self.assertRaises(AttributeError, test) - - @patch.object(support, 'SomeClass', spec=SomeClass, spec_set=True) - def test(MockClass): - MockClass.z = 'foo' - - self.assertRaises(AttributeError, test) - @patch('%s.SomeClass' % __name__, spec_set=True) - def test(MockClass): - MockClass.z = 'foo' - - self.assertRaises(AttributeError, test) - - @patch.object(support, 'SomeClass', spec_set=True) - def test(MockClass): - MockClass.z = 'foo' - - self.assertRaises(AttributeError, test) - - - def test_spec_set_inherit(self): - @patch('%s.SomeClass' % __name__, spec_set=True) - def test(MockClass): - instance = MockClass() - instance.z = 'foo' - - self.assertRaises(AttributeError, test) - - - def test_patch_start_stop(self): - original = something - patcher = patch('%s.something' % __name__) - self.assertIs(something, original) - mock = patcher.start() - try: - self.assertIsNot(mock, original) - self.assertIs(something, mock) - finally: - patcher.stop() - self.assertIs(something, original) - - - def test_stop_without_start(self): - # bpo-36366: calling stop without start will return None. - patcher = patch(foo_name, 'bar', 3) - self.assertIsNone(patcher.stop()) - - - def test_stop_idempotent(self): - # bpo-36366: calling stop on an already stopped patch will return None. - patcher = patch(foo_name, 'bar', 3) - - patcher.start() - patcher.stop() - self.assertIsNone(patcher.stop()) - - - def test_patchobject_start_stop(self): - original = something - patcher = patch.object(PTModule, 'something', 'foo') - self.assertIs(something, original) - replaced = patcher.start() - try: - self.assertEqual(replaced, 'foo') - self.assertIs(something, replaced) - finally: - patcher.stop() - self.assertIs(something, original) - - - def test_patch_dict_start_stop(self): - d = {'foo': 'bar'} - original = d.copy() - patcher = patch.dict(d, [('spam', 'eggs')], clear=True) - self.assertEqual(d, original) - - patcher.start() - try: - self.assertEqual(d, {'spam': 'eggs'}) - finally: - patcher.stop() - self.assertEqual(d, original) - - - def test_patch_dict_stop_without_start(self): - d = {'foo': 'bar'} - original = d.copy() - patcher = patch.dict(d, [('spam', 'eggs')], clear=True) - self.assertFalse(patcher.stop()) - self.assertEqual(d, original) - - - def test_patch_dict_class_decorator(self): - this = self - d = {'spam': 'eggs'} - original = d.copy() - - class Test(object): - def test_first(self): - this.assertEqual(d, {'foo': 'bar'}) - def test_second(self): - this.assertEqual(d, {'foo': 'bar'}) - - Test = patch.dict(d, {'foo': 'bar'}, clear=True)(Test) - self.assertEqual(d, original) - - test = Test() - - test.test_first() - self.assertEqual(d, original) - - test.test_second() - self.assertEqual(d, original) - - test = Test() - - test.test_first() - self.assertEqual(d, original) - - test.test_second() - self.assertEqual(d, original) - - - def test_get_only_proxy(self): - class Something(object): - foo = 'foo' - class SomethingElse: - foo = 'foo' - - for thing in Something, SomethingElse, Something(), SomethingElse: - proxy = _get_proxy(thing) - - @patch.object(proxy, 'foo', 'bar') - def test(): - self.assertEqual(proxy.foo, 'bar') - test() - self.assertEqual(proxy.foo, 'foo') - self.assertEqual(thing.foo, 'foo') - self.assertNotIn('foo', proxy.__dict__) - - - def test_get_set_delete_proxy(self): - class Something(object): - foo = 'foo' - class SomethingElse: - foo = 'foo' - - for thing in Something, SomethingElse, Something(), SomethingElse: - proxy = _get_proxy(Something, get_only=False) - - @patch.object(proxy, 'foo', 'bar') - def test(): - self.assertEqual(proxy.foo, 'bar') - test() - self.assertEqual(proxy.foo, 'foo') - self.assertEqual(thing.foo, 'foo') - self.assertNotIn('foo', proxy.__dict__) - - - def test_patch_keyword_args(self): - kwargs = {'side_effect': KeyError, 'foo.bar.return_value': 33, - 'foo': MagicMock()} - - patcher = patch(foo_name, **kwargs) - mock = patcher.start() - patcher.stop() - - self.assertRaises(KeyError, mock) - self.assertEqual(mock.foo.bar(), 33) - self.assertIsInstance(mock.foo, MagicMock) - - - def test_patch_object_keyword_args(self): - kwargs = {'side_effect': KeyError, 'foo.bar.return_value': 33, - 'foo': MagicMock()} - - patcher = patch.object(Foo, 'f', **kwargs) - mock = patcher.start() - patcher.stop() - - self.assertRaises(KeyError, mock) - self.assertEqual(mock.foo.bar(), 33) - self.assertIsInstance(mock.foo, MagicMock) - - - def test_patch_dict_keyword_args(self): - original = {'foo': 'bar'} - copy = original.copy() - - patcher = patch.dict(original, foo=3, bar=4, baz=5) - patcher.start() - - try: - self.assertEqual(original, dict(foo=3, bar=4, baz=5)) - finally: - patcher.stop() - - self.assertEqual(original, copy) - - - def test_autospec(self): - class Boo(object): - def __init__(self, a): pass - def f(self, a): pass - def g(self): pass - foo = 'bar' - - class Bar(object): - def a(self): pass - - def _test(mock): - mock(1) - mock.assert_called_with(1) - self.assertRaises(TypeError, mock) - - def _test2(mock): - mock.f(1) - mock.f.assert_called_with(1) - self.assertRaises(TypeError, mock.f) - - mock.g() - mock.g.assert_called_with() - self.assertRaises(TypeError, mock.g, 1) - - self.assertRaises(AttributeError, getattr, mock, 'h') - - mock.foo.lower() - mock.foo.lower.assert_called_with() - self.assertRaises(AttributeError, getattr, mock.foo, 'bar') - - mock.Bar() - mock.Bar.assert_called_with() - - mock.Bar.a() - mock.Bar.a.assert_called_with() - self.assertRaises(TypeError, mock.Bar.a, 1) - - mock.Bar().a() - mock.Bar().a.assert_called_with() - self.assertRaises(TypeError, mock.Bar().a, 1) - - self.assertRaises(AttributeError, getattr, mock.Bar, 'b') - self.assertRaises(AttributeError, getattr, mock.Bar(), 'b') - - def function(mock): - _test(mock) - _test2(mock) - _test2(mock(1)) - self.assertIs(mock, Foo) - return mock - - test = patch(foo_name, autospec=True)(function) - - mock = test() - self.assertIsNot(Foo, mock) - # test patching a second time works - test() - - module = sys.modules[__name__] - test = patch.object(module, 'Foo', autospec=True)(function) - - mock = test() - self.assertIsNot(Foo, mock) - # test patching a second time works - test() - - - def test_autospec_function(self): - @patch('%s.function' % __name__, autospec=True) - def test(mock): - function.assert_not_called() - self.assertRaises(AssertionError, function.assert_called) - self.assertRaises(AssertionError, function.assert_called_once) - function(1) - self.assertRaises(AssertionError, function.assert_not_called) - function.assert_called_with(1) - function.assert_called() - function.assert_called_once() - function(2, 3) - function.assert_called_with(2, 3) - - self.assertRaises(TypeError, function) - self.assertRaises(AttributeError, getattr, function, 'foo') - - test() - - - def test_autospec_keywords(self): - @patch('%s.function' % __name__, autospec=True, - return_value=3) - def test(mock_function): - #self.assertEqual(function.abc, 'foo') - return function(1, 2) - - result = test() - self.assertEqual(result, 3) - - - def test_autospec_staticmethod(self): - with patch('%s.Foo.static_method' % __name__, autospec=True) as method: - Foo.static_method() - method.assert_called_once_with() - - - def test_autospec_classmethod(self): - with patch('%s.Foo.class_method' % __name__, autospec=True) as method: - Foo.class_method() - method.assert_called_once_with() - - - def test_autospec_with_new(self): - patcher = patch('%s.function' % __name__, new=3, autospec=True) - self.assertRaises(TypeError, patcher.start) - - module = sys.modules[__name__] - patcher = patch.object(module, 'function', new=3, autospec=True) - self.assertRaises(TypeError, patcher.start) - - - def test_autospec_with_object(self): - class Bar(Foo): - extra = [] - - patcher = patch(foo_name, autospec=Bar) - mock = patcher.start() - try: - self.assertIsInstance(mock, Bar) - self.assertIsInstance(mock.extra, list) - finally: - patcher.stop() - - - def test_autospec_inherits(self): - FooClass = Foo - patcher = patch(foo_name, autospec=True) - mock = patcher.start() - try: - self.assertIsInstance(mock, FooClass) - self.assertIsInstance(mock(3), FooClass) - finally: - patcher.stop() - - - def test_autospec_name(self): - patcher = patch(foo_name, autospec=True) - mock = patcher.start() - - try: - self.assertIn(" name='Foo'", repr(mock)) - self.assertIn(" name='Foo.f'", repr(mock.f)) - self.assertIn(" name='Foo()'", repr(mock(None))) - self.assertIn(" name='Foo().f'", repr(mock(None).f)) - finally: - patcher.stop() - - - def test_tracebacks(self): - @patch.object(Foo, 'f', object()) - def test(): - raise AssertionError - try: - test() - except: - err = sys.exc_info() - - result = unittest.TextTestResult(None, None, 0) - traceback = result._exc_info_to_string(err, self) - self.assertIn('raise AssertionError', traceback) - - - def test_new_callable_patch(self): - patcher = patch(foo_name, new_callable=NonCallableMagicMock) - - m1 = patcher.start() - patcher.stop() - m2 = patcher.start() - patcher.stop() - - self.assertIsNot(m1, m2) - for mock in m1, m2: - self.assertNotCallable(m1) - - - def test_new_callable_patch_object(self): - patcher = patch.object(Foo, 'f', new_callable=NonCallableMagicMock) - - m1 = patcher.start() - patcher.stop() - m2 = patcher.start() - patcher.stop() - - self.assertIsNot(m1, m2) - for mock in m1, m2: - self.assertNotCallable(m1) - - - def test_new_callable_keyword_arguments(self): - class Bar(object): - kwargs = None - def __init__(self, **kwargs): - Bar.kwargs = kwargs - - patcher = patch(foo_name, new_callable=Bar, arg1=1, arg2=2) - m = patcher.start() - try: - self.assertIs(type(m), Bar) - self.assertEqual(Bar.kwargs, dict(arg1=1, arg2=2)) - finally: - patcher.stop() - - - def test_new_callable_spec(self): - class Bar(object): - kwargs = None - def __init__(self, **kwargs): - Bar.kwargs = kwargs - - patcher = patch(foo_name, new_callable=Bar, spec=Bar) - patcher.start() - try: - self.assertEqual(Bar.kwargs, dict(spec=Bar)) - finally: - patcher.stop() - - patcher = patch(foo_name, new_callable=Bar, spec_set=Bar) - patcher.start() - try: - self.assertEqual(Bar.kwargs, dict(spec_set=Bar)) - finally: - patcher.stop() - - - def test_new_callable_create(self): - non_existent_attr = '%s.weeeee' % foo_name - p = patch(non_existent_attr, new_callable=NonCallableMock) - self.assertRaises(AttributeError, p.start) - - p = patch(non_existent_attr, new_callable=NonCallableMock, - create=True) - m = p.start() - try: - self.assertNotCallable(m, magic=False) - finally: - p.stop() - - - def test_new_callable_incompatible_with_new(self): - self.assertRaises( - ValueError, patch, foo_name, new=object(), new_callable=MagicMock - ) - self.assertRaises( - ValueError, patch.object, Foo, 'f', new=object(), - new_callable=MagicMock - ) - - - def test_new_callable_incompatible_with_autospec(self): - self.assertRaises( - ValueError, patch, foo_name, new_callable=MagicMock, - autospec=True - ) - self.assertRaises( - ValueError, patch.object, Foo, 'f', new_callable=MagicMock, - autospec=True - ) - - - def test_new_callable_inherit_for_mocks(self): - class MockSub(Mock): - pass - - MockClasses = ( - NonCallableMock, NonCallableMagicMock, MagicMock, Mock, MockSub - ) - for Klass in MockClasses: - for arg in 'spec', 'spec_set': - kwargs = {arg: True} - p = patch(foo_name, new_callable=Klass, **kwargs) - m = p.start() - try: - instance = m.return_value - self.assertRaises(AttributeError, getattr, instance, 'x') - finally: - p.stop() - - - def test_new_callable_inherit_non_mock(self): - class NotAMock(object): - def __init__(self, spec): - self.spec = spec - - p = patch(foo_name, new_callable=NotAMock, spec=True) - m = p.start() - try: - self.assertTrue(is_instance(m, NotAMock)) - self.assertRaises(AttributeError, getattr, m, 'return_value') - finally: - p.stop() - - self.assertEqual(m.spec, Foo) - - - def test_new_callable_class_decorating(self): - test = self - original = Foo - class SomeTest(object): - - def _test(self, mock_foo): - test.assertIsNot(Foo, original) - test.assertIs(Foo, mock_foo) - test.assertIsInstance(Foo, SomeClass) - - def test_two(self, mock_foo): - self._test(mock_foo) - def test_one(self, mock_foo): - self._test(mock_foo) - - SomeTest = patch(foo_name, new_callable=SomeClass)(SomeTest) - SomeTest().test_one() - SomeTest().test_two() - self.assertIs(Foo, original) - - - def test_patch_multiple(self): - original_foo = Foo - original_f = Foo.f - original_g = Foo.g - - patcher1 = patch.multiple(foo_name, f=1, g=2) - patcher2 = patch.multiple(Foo, f=1, g=2) - - for patcher in patcher1, patcher2: - patcher.start() - try: - self.assertIs(Foo, original_foo) - self.assertEqual(Foo.f, 1) - self.assertEqual(Foo.g, 2) - finally: - patcher.stop() - - self.assertIs(Foo, original_foo) - self.assertEqual(Foo.f, original_f) - self.assertEqual(Foo.g, original_g) - - - @patch.multiple(foo_name, f=3, g=4) - def test(): - self.assertIs(Foo, original_foo) - self.assertEqual(Foo.f, 3) - self.assertEqual(Foo.g, 4) - - test() - - - def test_patch_multiple_no_kwargs(self): - self.assertRaises(ValueError, patch.multiple, foo_name) - self.assertRaises(ValueError, patch.multiple, Foo) - - - def test_patch_multiple_create_mocks(self): - original_foo = Foo - original_f = Foo.f - original_g = Foo.g - - @patch.multiple(foo_name, f=DEFAULT, g=3, foo=DEFAULT) - def test(f, foo): - self.assertIs(Foo, original_foo) - self.assertIs(Foo.f, f) - self.assertEqual(Foo.g, 3) - self.assertIs(Foo.foo, foo) - self.assertTrue(is_instance(f, MagicMock)) - self.assertTrue(is_instance(foo, MagicMock)) - - test() - self.assertEqual(Foo.f, original_f) - self.assertEqual(Foo.g, original_g) - - - def test_patch_multiple_create_mocks_different_order(self): - original_f = Foo.f - original_g = Foo.g - - patcher = patch.object(Foo, 'f', 3) - patcher.attribute_name = 'f' - - other = patch.object(Foo, 'g', DEFAULT) - other.attribute_name = 'g' - patcher.additional_patchers = [other] - - @patcher - def test(g): - self.assertIs(Foo.g, g) - self.assertEqual(Foo.f, 3) - - test() - self.assertEqual(Foo.f, original_f) - self.assertEqual(Foo.g, original_g) - - - def test_patch_multiple_stacked_decorators(self): - original_foo = Foo - original_f = Foo.f - original_g = Foo.g - - @patch.multiple(foo_name, f=DEFAULT) - @patch.multiple(foo_name, foo=DEFAULT) - @patch(foo_name + '.g') - def test1(g, **kwargs): - _test(g, **kwargs) - - @patch.multiple(foo_name, f=DEFAULT) - @patch(foo_name + '.g') - @patch.multiple(foo_name, foo=DEFAULT) - def test2(g, **kwargs): - _test(g, **kwargs) - - @patch(foo_name + '.g') - @patch.multiple(foo_name, f=DEFAULT) - @patch.multiple(foo_name, foo=DEFAULT) - def test3(g, **kwargs): - _test(g, **kwargs) - - def _test(g, **kwargs): - f = kwargs.pop('f') - foo = kwargs.pop('foo') - self.assertFalse(kwargs) - - self.assertIs(Foo, original_foo) - self.assertIs(Foo.f, f) - self.assertIs(Foo.g, g) - self.assertIs(Foo.foo, foo) - self.assertTrue(is_instance(f, MagicMock)) - self.assertTrue(is_instance(g, MagicMock)) - self.assertTrue(is_instance(foo, MagicMock)) - - test1() - test2() - test3() - self.assertEqual(Foo.f, original_f) - self.assertEqual(Foo.g, original_g) - - - def test_patch_multiple_create_mocks_patcher(self): - original_foo = Foo - original_f = Foo.f - original_g = Foo.g - - patcher = patch.multiple(foo_name, f=DEFAULT, g=3, foo=DEFAULT) - - result = patcher.start() - try: - f = result['f'] - foo = result['foo'] - self.assertEqual(set(result), set(['f', 'foo'])) - - self.assertIs(Foo, original_foo) - self.assertIs(Foo.f, f) - self.assertIs(Foo.foo, foo) - self.assertTrue(is_instance(f, MagicMock)) - self.assertTrue(is_instance(foo, MagicMock)) - finally: - patcher.stop() - - self.assertEqual(Foo.f, original_f) - self.assertEqual(Foo.g, original_g) - - - def test_patch_multiple_decorating_class(self): - test = self - original_foo = Foo - original_f = Foo.f - original_g = Foo.g - - class SomeTest(object): - - def _test(self, f, foo): - test.assertIs(Foo, original_foo) - test.assertIs(Foo.f, f) - test.assertEqual(Foo.g, 3) - test.assertIs(Foo.foo, foo) - test.assertTrue(is_instance(f, MagicMock)) - test.assertTrue(is_instance(foo, MagicMock)) - - def test_two(self, f, foo): - self._test(f, foo) - def test_one(self, f, foo): - self._test(f, foo) - - SomeTest = patch.multiple( - foo_name, f=DEFAULT, g=3, foo=DEFAULT - )(SomeTest) - - thing = SomeTest() - thing.test_one() - thing.test_two() - - self.assertEqual(Foo.f, original_f) - self.assertEqual(Foo.g, original_g) - - - def test_patch_multiple_create(self): - patcher = patch.multiple(Foo, blam='blam') - self.assertRaises(AttributeError, patcher.start) - - patcher = patch.multiple(Foo, blam='blam', create=True) - patcher.start() - try: - self.assertEqual(Foo.blam, 'blam') - finally: - patcher.stop() - - self.assertFalse(hasattr(Foo, 'blam')) - - - def test_patch_multiple_spec_set(self): - # if spec_set works then we can assume that spec and autospec also - # work as the underlying machinery is the same - patcher = patch.multiple(Foo, foo=DEFAULT, spec_set=['a', 'b']) - result = patcher.start() - try: - self.assertEqual(Foo.foo, result['foo']) - Foo.foo.a(1) - Foo.foo.b(2) - Foo.foo.a.assert_called_with(1) - Foo.foo.b.assert_called_with(2) - self.assertRaises(AttributeError, setattr, Foo.foo, 'c', None) - finally: - patcher.stop() - - - def test_patch_multiple_new_callable(self): - class Thing(object): - pass - - patcher = patch.multiple( - Foo, f=DEFAULT, g=DEFAULT, new_callable=Thing - ) - result = patcher.start() - try: - self.assertIs(Foo.f, result['f']) - self.assertIs(Foo.g, result['g']) - self.assertIsInstance(Foo.f, Thing) - self.assertIsInstance(Foo.g, Thing) - self.assertIsNot(Foo.f, Foo.g) - finally: - patcher.stop() - - - def test_nested_patch_failure(self): - original_f = Foo.f - original_g = Foo.g - - @patch.object(Foo, 'g', 1) - @patch.object(Foo, 'missing', 1) - @patch.object(Foo, 'f', 1) - def thing1(): pass - - @patch.object(Foo, 'missing', 1) - @patch.object(Foo, 'g', 1) - @patch.object(Foo, 'f', 1) - def thing2(): pass - - @patch.object(Foo, 'g', 1) - @patch.object(Foo, 'f', 1) - @patch.object(Foo, 'missing', 1) - def thing3(): pass - - for func in thing1, thing2, thing3: - self.assertRaises(AttributeError, func) - self.assertEqual(Foo.f, original_f) - self.assertEqual(Foo.g, original_g) - - - def test_new_callable_failure(self): - original_f = Foo.f - original_g = Foo.g - original_foo = Foo.foo - - def crasher(): - raise NameError('crasher') - - @patch.object(Foo, 'g', 1) - @patch.object(Foo, 'foo', new_callable=crasher) - @patch.object(Foo, 'f', 1) - def thing1(): pass - - @patch.object(Foo, 'foo', new_callable=crasher) - @patch.object(Foo, 'g', 1) - @patch.object(Foo, 'f', 1) - def thing2(): pass - - @patch.object(Foo, 'g', 1) - @patch.object(Foo, 'f', 1) - @patch.object(Foo, 'foo', new_callable=crasher) - def thing3(): pass - - for func in thing1, thing2, thing3: - self.assertRaises(NameError, func) - self.assertEqual(Foo.f, original_f) - self.assertEqual(Foo.g, original_g) - self.assertEqual(Foo.foo, original_foo) - - - def test_patch_multiple_failure(self): - original_f = Foo.f - original_g = Foo.g - - patcher = patch.object(Foo, 'f', 1) - patcher.attribute_name = 'f' - - good = patch.object(Foo, 'g', 1) - good.attribute_name = 'g' - - bad = patch.object(Foo, 'missing', 1) - bad.attribute_name = 'missing' - - for additionals in [good, bad], [bad, good]: - patcher.additional_patchers = additionals - - @patcher - def func(): pass - - self.assertRaises(AttributeError, func) - self.assertEqual(Foo.f, original_f) - self.assertEqual(Foo.g, original_g) - - - def test_patch_multiple_new_callable_failure(self): - original_f = Foo.f - original_g = Foo.g - original_foo = Foo.foo - - def crasher(): - raise NameError('crasher') - - patcher = patch.object(Foo, 'f', 1) - patcher.attribute_name = 'f' - - good = patch.object(Foo, 'g', 1) - good.attribute_name = 'g' - - bad = patch.object(Foo, 'foo', new_callable=crasher) - bad.attribute_name = 'foo' - - for additionals in [good, bad], [bad, good]: - patcher.additional_patchers = additionals - - @patcher - def func(): pass - - self.assertRaises(NameError, func) - self.assertEqual(Foo.f, original_f) - self.assertEqual(Foo.g, original_g) - self.assertEqual(Foo.foo, original_foo) - - - def test_patch_multiple_string_subclasses(self): - Foo = type('Foo', (str,), {'fish': 'tasty'}) - foo = Foo() - @patch.multiple(foo, fish='nearly gone') - def test(): - self.assertEqual(foo.fish, 'nearly gone') - - test() - self.assertEqual(foo.fish, 'tasty') - - - @patch('unittest.mock.patch.TEST_PREFIX', 'foo') - def test_patch_test_prefix(self): - class Foo(object): - thing = 'original' - - def foo_one(self): - return self.thing - def foo_two(self): - return self.thing - def test_one(self): - return self.thing - def test_two(self): - return self.thing - - Foo = patch.object(Foo, 'thing', 'changed')(Foo) - - foo = Foo() - self.assertEqual(foo.foo_one(), 'changed') - self.assertEqual(foo.foo_two(), 'changed') - self.assertEqual(foo.test_one(), 'original') - self.assertEqual(foo.test_two(), 'original') - - - @patch('unittest.mock.patch.TEST_PREFIX', 'bar') - def test_patch_dict_test_prefix(self): - class Foo(object): - def bar_one(self): - return dict(the_dict) - def bar_two(self): - return dict(the_dict) - def test_one(self): - return dict(the_dict) - def test_two(self): - return dict(the_dict) - - the_dict = {'key': 'original'} - Foo = patch.dict(the_dict, key='changed')(Foo) - - foo =Foo() - self.assertEqual(foo.bar_one(), {'key': 'changed'}) - self.assertEqual(foo.bar_two(), {'key': 'changed'}) - self.assertEqual(foo.test_one(), {'key': 'original'}) - self.assertEqual(foo.test_two(), {'key': 'original'}) - - - def test_patch_with_spec_mock_repr(self): - for arg in ('spec', 'autospec', 'spec_set'): - p = patch('%s.SomeClass' % __name__, **{arg: True}) - m = p.start() - try: - self.assertIn(" name='SomeClass'", repr(m)) - self.assertIn(" name='SomeClass.class_attribute'", - repr(m.class_attribute)) - self.assertIn(" name='SomeClass()'", repr(m())) - self.assertIn(" name='SomeClass().class_attribute'", - repr(m().class_attribute)) - finally: - p.stop() - - - def test_patch_nested_autospec_repr(self): - with patch('unittest.test.testmock.support', autospec=True) as m: - self.assertIn(" name='support.SomeClass.wibble()'", - repr(m.SomeClass.wibble())) - self.assertIn(" name='support.SomeClass().wibble()'", - repr(m.SomeClass().wibble())) - - - - def test_mock_calls_with_patch(self): - for arg in ('spec', 'autospec', 'spec_set'): - p = patch('%s.SomeClass' % __name__, **{arg: True}) - m = p.start() - try: - m.wibble() - - kalls = [call.wibble()] - self.assertEqual(m.mock_calls, kalls) - self.assertEqual(m.method_calls, kalls) - self.assertEqual(m.wibble.mock_calls, [call()]) - - result = m() - kalls.append(call()) - self.assertEqual(m.mock_calls, kalls) - - result.wibble() - kalls.append(call().wibble()) - self.assertEqual(m.mock_calls, kalls) - - self.assertEqual(result.mock_calls, [call.wibble()]) - self.assertEqual(result.wibble.mock_calls, [call()]) - self.assertEqual(result.method_calls, [call.wibble()]) - finally: - p.stop() - - - def test_patch_imports_lazily(self): - p1 = patch('squizz.squozz') - self.assertRaises(ImportError, p1.start) - - with uncache('squizz'): - squizz = Mock() - sys.modules['squizz'] = squizz - - squizz.squozz = 6 - p1 = patch('squizz.squozz') - squizz.squozz = 3 - p1.start() - p1.stop() - self.assertEqual(squizz.squozz, 3) - - def test_patch_propagates_exc_on_exit(self): - class holder: - exc_info = None, None, None - - class custom_patch(_patch): - def __exit__(self, etype=None, val=None, tb=None): - _patch.__exit__(self, etype, val, tb) - holder.exc_info = etype, val, tb - stop = __exit__ - - def with_custom_patch(target): - getter, attribute = _get_target(target) - return custom_patch( - getter, attribute, DEFAULT, None, False, None, - None, None, {} - ) - - @with_custom_patch('squizz.squozz') - def test(mock): - raise RuntimeError - - with uncache('squizz'): - squizz = Mock() - sys.modules['squizz'] = squizz - - self.assertRaises(RuntimeError, test) - - self.assertIs(holder.exc_info[0], RuntimeError) - self.assertIsNotNone(holder.exc_info[1], - 'exception value not propagated') - self.assertIsNotNone(holder.exc_info[2], - 'exception traceback not propagated') - - - def test_create_and_specs(self): - for kwarg in ('spec', 'spec_set', 'autospec'): - p = patch('%s.doesnotexist' % __name__, create=True, - **{kwarg: True}) - self.assertRaises(TypeError, p.start) - self.assertRaises(NameError, lambda: doesnotexist) - - # check that spec with create is innocuous if the original exists - p = patch(MODNAME, create=True, **{kwarg: True}) - p.start() - p.stop() - - - def test_multiple_specs(self): - original = PTModule - for kwarg in ('spec', 'spec_set'): - p = patch(MODNAME, autospec=0, **{kwarg: 0}) - self.assertRaises(TypeError, p.start) - self.assertIs(PTModule, original) - - for kwarg in ('spec', 'autospec'): - p = patch(MODNAME, spec_set=0, **{kwarg: 0}) - self.assertRaises(TypeError, p.start) - self.assertIs(PTModule, original) - - for kwarg in ('spec_set', 'autospec'): - p = patch(MODNAME, spec=0, **{kwarg: 0}) - self.assertRaises(TypeError, p.start) - self.assertIs(PTModule, original) - - - def test_specs_false_instead_of_none(self): - p = patch(MODNAME, spec=False, spec_set=False, autospec=False) - mock = p.start() - try: - # no spec should have been set, so attribute access should not fail - mock.does_not_exist - mock.does_not_exist = 3 - finally: - p.stop() - - - def test_falsey_spec(self): - for kwarg in ('spec', 'autospec', 'spec_set'): - p = patch(MODNAME, **{kwarg: 0}) - m = p.start() - try: - self.assertRaises(AttributeError, getattr, m, 'doesnotexit') - finally: - p.stop() - - - def test_spec_set_true(self): - for kwarg in ('spec', 'autospec'): - p = patch(MODNAME, spec_set=True, **{kwarg: True}) - m = p.start() - try: - self.assertRaises(AttributeError, setattr, m, - 'doesnotexist', 'something') - self.assertRaises(AttributeError, getattr, m, 'doesnotexist') - finally: - p.stop() - - - def test_callable_spec_as_list(self): - spec = ('__call__',) - p = patch(MODNAME, spec=spec) - m = p.start() - try: - self.assertTrue(callable(m)) - finally: - p.stop() - - - def test_not_callable_spec_as_list(self): - spec = ('foo', 'bar') - p = patch(MODNAME, spec=spec) - m = p.start() - try: - self.assertFalse(callable(m)) - finally: - p.stop() - - - def test_patch_stopall(self): - unlink = os.unlink - chdir = os.chdir - path = os.path - patch('os.unlink', something).start() - patch('os.chdir', something_else).start() - - @patch('os.path') - def patched(mock_path): - patch.stopall() - self.assertIs(os.path, mock_path) - self.assertIs(os.unlink, unlink) - self.assertIs(os.chdir, chdir) - - patched() - self.assertIs(os.path, path) - - def test_stopall_lifo(self): - stopped = [] - class thing(object): - one = two = three = None - - def get_patch(attribute): - class mypatch(_patch): - def stop(self): - stopped.append(attribute) - return super(mypatch, self).stop() - return mypatch(lambda: thing, attribute, None, None, - False, None, None, None, {}) - [get_patch(val).start() for val in ("one", "two", "three")] - patch.stopall() - - self.assertEqual(stopped, ["three", "two", "one"]) - - def test_patch_dict_stopall(self): - dic1 = {} - dic2 = {1: 'a'} - dic3 = {1: 'A', 2: 'B'} - origdic1 = dic1.copy() - origdic2 = dic2.copy() - origdic3 = dic3.copy() - patch.dict(dic1, {1: 'I', 2: 'II'}).start() - patch.dict(dic2, {2: 'b'}).start() - - @patch.dict(dic3) - def patched(): - del dic3[1] - - patched() - self.assertNotEqual(dic1, origdic1) - self.assertNotEqual(dic2, origdic2) - self.assertEqual(dic3, origdic3) - - patch.stopall() - - self.assertEqual(dic1, origdic1) - self.assertEqual(dic2, origdic2) - self.assertEqual(dic3, origdic3) - - - def test_patch_and_patch_dict_stopall(self): - original_unlink = os.unlink - original_chdir = os.chdir - dic1 = {} - dic2 = {1: 'A', 2: 'B'} - origdic1 = dic1.copy() - origdic2 = dic2.copy() - - patch('os.unlink', something).start() - patch('os.chdir', something_else).start() - patch.dict(dic1, {1: 'I', 2: 'II'}).start() - patch.dict(dic2).start() - del dic2[1] - - self.assertIsNot(os.unlink, original_unlink) - self.assertIsNot(os.chdir, original_chdir) - self.assertNotEqual(dic1, origdic1) - self.assertNotEqual(dic2, origdic2) - patch.stopall() - self.assertIs(os.unlink, original_unlink) - self.assertIs(os.chdir, original_chdir) - self.assertEqual(dic1, origdic1) - self.assertEqual(dic2, origdic2) - - - def test_special_attrs(self): - def foo(x=0): - """TEST""" - return x - with patch.object(foo, '__defaults__', (1, )): - self.assertEqual(foo(), 1) - self.assertEqual(foo(), 0) - - orig_doc = foo.__doc__ - with patch.object(foo, '__doc__', "FUN"): - self.assertEqual(foo.__doc__, "FUN") - self.assertEqual(foo.__doc__, orig_doc) - - with patch.object(foo, '__module__', "testpatch2"): - self.assertEqual(foo.__module__, "testpatch2") - self.assertEqual(foo.__module__, 'unittest.test.testmock.testpatch') - - with patch.object(foo, '__annotations__', dict([('s', 1, )])): - self.assertEqual(foo.__annotations__, dict([('s', 1, )])) - self.assertEqual(foo.__annotations__, dict()) - - def foo(*a, x=0): - return x - with patch.object(foo, '__kwdefaults__', dict([('x', 1, )])): - self.assertEqual(foo(), 1) - self.assertEqual(foo(), 0) - - def test_patch_orderdict(self): - foo = OrderedDict() - foo['a'] = object() - foo['b'] = 'python' - - original = foo.copy() - update_values = list(zip('cdefghijklmnopqrstuvwxyz', range(26))) - patched_values = list(foo.items()) + update_values - - with patch.dict(foo, OrderedDict(update_values)): - self.assertEqual(list(foo.items()), patched_values) - - self.assertEqual(foo, original) - - with patch.dict(foo, update_values): - self.assertEqual(list(foo.items()), patched_values) - - self.assertEqual(foo, original) - - def test_dotted_but_module_not_loaded(self): - # This exercises the AttributeError branch of _dot_lookup. - - # make sure it's there - import unittest.test.testmock.support - # now make sure it's not: - with patch.dict('sys.modules'): - del sys.modules['unittest.test.testmock.support'] - del sys.modules['unittest.test.testmock'] - del sys.modules['unittest.test'] - del sys.modules['unittest'] - - # now make sure we can patch based on a dotted path: - @patch('unittest.test.testmock.support.X') - def test(mock): - pass - test() - - - def test_invalid_target(self): - class Foo: - pass - - for target in ['', 12, Foo()]: - with self.subTest(target=target): - with self.assertRaises(TypeError): - patch(target) - - - def test_cant_set_kwargs_when_passing_a_mock(self): - @patch('unittest.test.testmock.support.X', new=object(), x=1) - def test(): pass - with self.assertRaises(TypeError): - test() - - -if __name__ == '__main__': - unittest.main() |