1854 lines
54 KiB
Python
1854 lines
54 KiB
Python
# Copyright (C) 2007-2012 Michael Foord & the mock team
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# E-mail: fuzzyman AT voidspace DOT org DOT uk
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# http://www.voidspace.org.uk/python/mock/
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import os
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import sys
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import unittest
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from unittest.test.testmock import support
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from unittest.test.testmock.support import SomeClass, is_instance
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from unittest.mock import (
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NonCallableMock, CallableMixin, sentinel,
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MagicMock, Mock, NonCallableMagicMock, patch, _patch,
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DEFAULT, call, _get_target
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)
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builtin_string = 'builtins'
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PTModule = sys.modules[__name__]
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MODNAME = '%s.PTModule' % __name__
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def _get_proxy(obj, get_only=True):
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class Proxy(object):
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def __getattr__(self, name):
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return getattr(obj, name)
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if not get_only:
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def __setattr__(self, name, value):
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setattr(obj, name, value)
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def __delattr__(self, name):
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delattr(obj, name)
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Proxy.__setattr__ = __setattr__
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Proxy.__delattr__ = __delattr__
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return Proxy()
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# for use in the test
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something = sentinel.Something
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something_else = sentinel.SomethingElse
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class Foo(object):
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def __init__(self, a):
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pass
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def f(self, a):
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pass
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def g(self):
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pass
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foo = 'bar'
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class Bar(object):
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def a(self):
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pass
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foo_name = '%s.Foo' % __name__
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def function(a, b=Foo):
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pass
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class Container(object):
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def __init__(self):
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self.values = {}
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def __getitem__(self, name):
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return self.values[name]
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def __setitem__(self, name, value):
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self.values[name] = value
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def __delitem__(self, name):
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del self.values[name]
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def __iter__(self):
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return iter(self.values)
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class PatchTest(unittest.TestCase):
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def assertNotCallable(self, obj, magic=True):
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MockClass = NonCallableMagicMock
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if not magic:
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MockClass = NonCallableMock
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self.assertRaises(TypeError, obj)
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self.assertTrue(is_instance(obj, MockClass))
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self.assertFalse(is_instance(obj, CallableMixin))
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def test_single_patchobject(self):
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class Something(object):
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attribute = sentinel.Original
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@patch.object(Something, 'attribute', sentinel.Patched)
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def test():
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self.assertEqual(Something.attribute, sentinel.Patched, "unpatched")
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test()
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self.assertEqual(Something.attribute, sentinel.Original,
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"patch not restored")
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def test_patchobject_with_none(self):
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class Something(object):
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attribute = sentinel.Original
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@patch.object(Something, 'attribute', None)
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def test():
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self.assertIsNone(Something.attribute, "unpatched")
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test()
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self.assertEqual(Something.attribute, sentinel.Original,
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"patch not restored")
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def test_multiple_patchobject(self):
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class Something(object):
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attribute = sentinel.Original
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next_attribute = sentinel.Original2
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@patch.object(Something, 'attribute', sentinel.Patched)
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@patch.object(Something, 'next_attribute', sentinel.Patched2)
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def test():
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self.assertEqual(Something.attribute, sentinel.Patched,
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"unpatched")
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self.assertEqual(Something.next_attribute, sentinel.Patched2,
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"unpatched")
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test()
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self.assertEqual(Something.attribute, sentinel.Original,
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"patch not restored")
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self.assertEqual(Something.next_attribute, sentinel.Original2,
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"patch not restored")
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def test_object_lookup_is_quite_lazy(self):
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global something
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original = something
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@patch('%s.something' % __name__, sentinel.Something2)
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def test():
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pass
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try:
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something = sentinel.replacement_value
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test()
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self.assertEqual(something, sentinel.replacement_value)
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finally:
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something = original
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def test_patch(self):
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@patch('%s.something' % __name__, sentinel.Something2)
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def test():
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self.assertEqual(PTModule.something, sentinel.Something2,
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"unpatched")
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test()
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self.assertEqual(PTModule.something, sentinel.Something,
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"patch not restored")
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@patch('%s.something' % __name__, sentinel.Something2)
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@patch('%s.something_else' % __name__, sentinel.SomethingElse)
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def test():
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self.assertEqual(PTModule.something, sentinel.Something2,
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"unpatched")
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self.assertEqual(PTModule.something_else, sentinel.SomethingElse,
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"unpatched")
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self.assertEqual(PTModule.something, sentinel.Something,
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"patch not restored")
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self.assertEqual(PTModule.something_else, sentinel.SomethingElse,
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"patch not restored")
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# Test the patching and restoring works a second time
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test()
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self.assertEqual(PTModule.something, sentinel.Something,
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"patch not restored")
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self.assertEqual(PTModule.something_else, sentinel.SomethingElse,
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"patch not restored")
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mock = Mock()
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mock.return_value = sentinel.Handle
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@patch('%s.open' % builtin_string, mock)
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def test():
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self.assertEqual(open('filename', 'r'), sentinel.Handle,
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"open not patched")
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test()
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test()
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self.assertNotEqual(open, mock, "patch not restored")
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def test_patch_class_attribute(self):
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@patch('%s.SomeClass.class_attribute' % __name__,
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sentinel.ClassAttribute)
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def test():
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self.assertEqual(PTModule.SomeClass.class_attribute,
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sentinel.ClassAttribute, "unpatched")
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test()
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self.assertIsNone(PTModule.SomeClass.class_attribute,
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"patch not restored")
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def test_patchobject_with_default_mock(self):
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class Test(object):
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something = sentinel.Original
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something2 = sentinel.Original2
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@patch.object(Test, 'something')
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def test(mock):
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self.assertEqual(mock, Test.something,
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"Mock not passed into test function")
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self.assertIsInstance(mock, MagicMock,
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"patch with two arguments did not create a mock")
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test()
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@patch.object(Test, 'something')
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@patch.object(Test, 'something2')
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def test(this1, this2, mock1, mock2):
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self.assertEqual(this1, sentinel.this1,
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"Patched function didn't receive initial argument")
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self.assertEqual(this2, sentinel.this2,
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"Patched function didn't receive second argument")
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self.assertEqual(mock1, Test.something2,
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"Mock not passed into test function")
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self.assertEqual(mock2, Test.something,
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"Second Mock not passed into test function")
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self.assertIsInstance(mock2, MagicMock,
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"patch with two arguments did not create a mock")
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self.assertIsInstance(mock2, MagicMock,
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"patch with two arguments did not create a mock")
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# A hack to test that new mocks are passed the second time
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self.assertNotEqual(outerMock1, mock1, "unexpected value for mock1")
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self.assertNotEqual(outerMock2, mock2, "unexpected value for mock1")
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return mock1, mock2
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outerMock1 = outerMock2 = None
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outerMock1, outerMock2 = test(sentinel.this1, sentinel.this2)
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# Test that executing a second time creates new mocks
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test(sentinel.this1, sentinel.this2)
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def test_patch_with_spec(self):
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@patch('%s.SomeClass' % __name__, spec=SomeClass)
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def test(MockSomeClass):
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self.assertEqual(SomeClass, MockSomeClass)
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self.assertTrue(is_instance(SomeClass.wibble, MagicMock))
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self.assertRaises(AttributeError, lambda: SomeClass.not_wibble)
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test()
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def test_patchobject_with_spec(self):
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@patch.object(SomeClass, 'class_attribute', spec=SomeClass)
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def test(MockAttribute):
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self.assertEqual(SomeClass.class_attribute, MockAttribute)
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self.assertTrue(is_instance(SomeClass.class_attribute.wibble,
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MagicMock))
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self.assertRaises(AttributeError,
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lambda: SomeClass.class_attribute.not_wibble)
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test()
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def test_patch_with_spec_as_list(self):
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@patch('%s.SomeClass' % __name__, spec=['wibble'])
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def test(MockSomeClass):
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self.assertEqual(SomeClass, MockSomeClass)
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self.assertTrue(is_instance(SomeClass.wibble, MagicMock))
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self.assertRaises(AttributeError, lambda: SomeClass.not_wibble)
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test()
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def test_patchobject_with_spec_as_list(self):
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@patch.object(SomeClass, 'class_attribute', spec=['wibble'])
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def test(MockAttribute):
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self.assertEqual(SomeClass.class_attribute, MockAttribute)
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self.assertTrue(is_instance(SomeClass.class_attribute.wibble,
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MagicMock))
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self.assertRaises(AttributeError,
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lambda: SomeClass.class_attribute.not_wibble)
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test()
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def test_nested_patch_with_spec_as_list(self):
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# regression test for nested decorators
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@patch('%s.open' % builtin_string)
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@patch('%s.SomeClass' % __name__, spec=['wibble'])
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def test(MockSomeClass, MockOpen):
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self.assertEqual(SomeClass, MockSomeClass)
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self.assertTrue(is_instance(SomeClass.wibble, MagicMock))
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self.assertRaises(AttributeError, lambda: SomeClass.not_wibble)
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test()
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def test_patch_with_spec_as_boolean(self):
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@patch('%s.SomeClass' % __name__, spec=True)
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def test(MockSomeClass):
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self.assertEqual(SomeClass, MockSomeClass)
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# Should not raise attribute error
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MockSomeClass.wibble
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self.assertRaises(AttributeError, lambda: MockSomeClass.not_wibble)
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test()
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def test_patch_object_with_spec_as_boolean(self):
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@patch.object(PTModule, 'SomeClass', spec=True)
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def test(MockSomeClass):
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self.assertEqual(SomeClass, MockSomeClass)
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# Should not raise attribute error
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MockSomeClass.wibble
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self.assertRaises(AttributeError, lambda: MockSomeClass.not_wibble)
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test()
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def test_patch_class_acts_with_spec_is_inherited(self):
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@patch('%s.SomeClass' % __name__, spec=True)
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def test(MockSomeClass):
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self.assertTrue(is_instance(MockSomeClass, MagicMock))
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instance = MockSomeClass()
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self.assertNotCallable(instance)
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# Should not raise attribute error
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instance.wibble
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self.assertRaises(AttributeError, lambda: instance.not_wibble)
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test()
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def test_patch_with_create_mocks_non_existent_attributes(self):
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@patch('%s.frooble' % builtin_string, sentinel.Frooble, create=True)
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def test():
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self.assertEqual(frooble, sentinel.Frooble)
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test()
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self.assertRaises(NameError, lambda: frooble)
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def test_patchobject_with_create_mocks_non_existent_attributes(self):
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@patch.object(SomeClass, 'frooble', sentinel.Frooble, create=True)
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def test():
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self.assertEqual(SomeClass.frooble, sentinel.Frooble)
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test()
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self.assertFalse(hasattr(SomeClass, 'frooble'))
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def test_patch_wont_create_by_default(self):
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try:
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@patch('%s.frooble' % builtin_string, sentinel.Frooble)
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def test():
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self.assertEqual(frooble, sentinel.Frooble)
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test()
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except AttributeError:
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pass
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else:
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self.fail('Patching non existent attributes should fail')
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self.assertRaises(NameError, lambda: frooble)
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def test_patchobject_wont_create_by_default(self):
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try:
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@patch.object(SomeClass, 'ord', sentinel.Frooble)
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def test():
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self.fail('Patching non existent attributes should fail')
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test()
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except AttributeError:
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pass
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else:
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self.fail('Patching non existent attributes should fail')
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self.assertFalse(hasattr(SomeClass, 'ord'))
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def test_patch_builtins_without_create(self):
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@patch(__name__+'.ord')
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def test_ord(mock_ord):
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mock_ord.return_value = 101
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return ord('c')
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@patch(__name__+'.open')
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def test_open(mock_open):
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m = mock_open.return_value
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m.read.return_value = 'abcd'
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fobj = open('doesnotexists.txt')
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data = fobj.read()
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fobj.close()
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return data
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self.assertEqual(test_ord(), 101)
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self.assertEqual(test_open(), 'abcd')
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def test_patch_with_static_methods(self):
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class Foo(object):
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@staticmethod
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def woot():
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return sentinel.Static
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@patch.object(Foo, 'woot', staticmethod(lambda: sentinel.Patched))
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def anonymous():
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self.assertEqual(Foo.woot(), sentinel.Patched)
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anonymous()
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self.assertEqual(Foo.woot(), sentinel.Static)
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def test_patch_local(self):
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foo = sentinel.Foo
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@patch.object(sentinel, 'Foo', 'Foo')
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def anonymous():
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self.assertEqual(sentinel.Foo, 'Foo')
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anonymous()
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self.assertEqual(sentinel.Foo, foo)
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def test_patch_slots(self):
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class Foo(object):
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__slots__ = ('Foo',)
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foo = Foo()
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foo.Foo = sentinel.Foo
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@patch.object(foo, 'Foo', 'Foo')
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def anonymous():
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self.assertEqual(foo.Foo, 'Foo')
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anonymous()
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self.assertEqual(foo.Foo, sentinel.Foo)
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def test_patchobject_class_decorator(self):
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class Something(object):
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attribute = sentinel.Original
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class Foo(object):
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def test_method(other_self):
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self.assertEqual(Something.attribute, sentinel.Patched,
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"unpatched")
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def not_test_method(other_self):
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self.assertEqual(Something.attribute, sentinel.Original,
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"non-test method patched")
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Foo = patch.object(Something, 'attribute', sentinel.Patched)(Foo)
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f = Foo()
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f.test_method()
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f.not_test_method()
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self.assertEqual(Something.attribute, sentinel.Original,
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"patch not restored")
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def test_patch_class_decorator(self):
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class Something(object):
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attribute = sentinel.Original
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class Foo(object):
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def test_method(other_self, mock_something):
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self.assertEqual(PTModule.something, mock_something,
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"unpatched")
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def not_test_method(other_self):
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self.assertEqual(PTModule.something, sentinel.Something,
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"non-test method patched")
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Foo = patch('%s.something' % __name__)(Foo)
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f = Foo()
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f.test_method()
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f.not_test_method()
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self.assertEqual(Something.attribute, sentinel.Original,
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"patch not restored")
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self.assertEqual(PTModule.something, sentinel.Something,
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"patch not restored")
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def test_patchobject_twice(self):
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class Something(object):
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attribute = sentinel.Original
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next_attribute = sentinel.Original2
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@patch.object(Something, 'attribute', sentinel.Patched)
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@patch.object(Something, 'attribute', sentinel.Patched)
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def test():
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self.assertEqual(Something.attribute, sentinel.Patched, "unpatched")
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test()
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self.assertEqual(Something.attribute, sentinel.Original,
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"patch not restored")
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def test_patch_dict(self):
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foo = {'initial': object(), 'other': 'something'}
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original = foo.copy()
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@patch.dict(foo)
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def test():
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foo['a'] = 3
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del foo['initial']
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foo['other'] = 'something else'
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test()
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self.assertEqual(foo, original)
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@patch.dict(foo, {'a': 'b'})
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def test():
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self.assertEqual(len(foo), 3)
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self.assertEqual(foo['a'], 'b')
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test()
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self.assertEqual(foo, original)
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@patch.dict(foo, [('a', 'b')])
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def test():
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self.assertEqual(len(foo), 3)
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self.assertEqual(foo['a'], 'b')
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test()
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self.assertEqual(foo, original)
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def test_patch_dict_with_container_object(self):
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foo = Container()
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foo['initial'] = object()
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foo['other'] = 'something'
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original = foo.values.copy()
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@patch.dict(foo)
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def test():
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foo['a'] = 3
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del foo['initial']
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foo['other'] = 'something else'
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test()
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self.assertEqual(foo.values, original)
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@patch.dict(foo, {'a': 'b'})
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def test():
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self.assertEqual(len(foo.values), 3)
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self.assertEqual(foo['a'], 'b')
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test()
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self.assertEqual(foo.values, original)
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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_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')
|
|
try:
|
|
test()
|
|
except NameError:
|
|
pass
|
|
else:
|
|
self.fail('NameError not raised by 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_descriptor(self):
|
|
# would be some effort to fix this - we could special case the
|
|
# builtin descriptors: classmethod, property, staticmethod
|
|
return
|
|
class Nothing(object):
|
|
foo = None
|
|
|
|
class Something(object):
|
|
foo = {}
|
|
|
|
@patch.object(Nothing, 'foo', 2)
|
|
@classmethod
|
|
def klass(cls):
|
|
self.assertIs(cls, Something)
|
|
|
|
@patch.object(Nothing, 'foo', 2)
|
|
@staticmethod
|
|
def static(arg):
|
|
return arg
|
|
|
|
@patch.dict(foo)
|
|
@classmethod
|
|
def klass_dict(cls):
|
|
self.assertIs(cls, Something)
|
|
|
|
@patch.dict(foo)
|
|
@staticmethod
|
|
def static_dict(arg):
|
|
return arg
|
|
|
|
# these will raise exceptions if patching descriptors is broken
|
|
self.assertEqual(Something.static('f00'), 'f00')
|
|
Something.klass()
|
|
self.assertEqual(Something.static_dict('f00'), 'f00')
|
|
Something.klass_dict()
|
|
|
|
something = Something()
|
|
self.assertEqual(something.static('f00'), 'f00')
|
|
something.klass()
|
|
self.assertEqual(something.static_dict('f00'), 'f00')
|
|
something.klass_dict()
|
|
|
|
|
|
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):
|
|
patcher = patch(foo_name, 'bar', 3)
|
|
|
|
# calling stop without start used to produce a very obscure error
|
|
self.assertRaises(RuntimeError, 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_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_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):
|
|
# bug revealed by Jython!
|
|
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):
|
|
sys.modules.pop('squizz', None)
|
|
|
|
p1 = patch('squizz.squozz')
|
|
self.assertRaises(ImportError, p1.start)
|
|
|
|
squizz = Mock()
|
|
squizz.squozz = 6
|
|
sys.modules['squizz'] = squizz
|
|
p1 = patch('squizz.squozz')
|
|
squizz.squozz = 3
|
|
p1.start()
|
|
p1.stop()
|
|
self.assertEqual(squizz.squozz, 3)
|
|
|
|
|
|
def test_patch_propogrates_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
|
|
|
|
self.assertRaises(RuntimeError, test)
|
|
self.assertIs(holder.exc_info[0], RuntimeError)
|
|
self.assertIsNotNone(holder.exc_info[1],
|
|
'exception value not propgated')
|
|
self.assertIsNotNone(holder.exc_info[2],
|
|
'exception traceback not propgated')
|
|
|
|
|
|
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_special_attrs(self):
|
|
def foo(x=0):
|
|
"""TEST"""
|
|
return x
|
|
with patch.object(foo, '__defaults__', (1, )):
|
|
self.assertEqual(foo(), 1)
|
|
self.assertEqual(foo(), 0)
|
|
|
|
with patch.object(foo, '__doc__', "FUN"):
|
|
self.assertEqual(foo.__doc__, "FUN")
|
|
self.assertEqual(foo.__doc__, "TEST")
|
|
|
|
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)
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|