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📁 ..	-	2016-06-08 10:18
📄 __init__.py # 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/	146 B	2016-06-08 10:18
📄 __main__.py import os import unittest def load_tests(loader, standard_tests, pattern): # top level directory cached on loader instance this_dir = os.path.dirname(__file__) pattern = pattern or "test*.py" # We are inside unittest.test.testmock, so the top-level is three notches up top_level_dir = os.path.dirname(os.path.dirname(os.path.dirname(this_dir))) package_tests = loader.discover(start_dir=this_dir, pattern=pattern, top_level_dir=top_level_dir) standard_tests.addTests(package_tests) return standard_tests if __name__ == '__main__': unittest.main()	623 B	2016-06-08 10:18
📄 support.py import sys info = sys.version_info import unittest2 try: callable = callable except NameError: def callable(obj): return hasattr(obj, '__call__') with_available = sys.version_info[:2] >= (2, 5) def is_instance(obj, klass): """Version of is_instance that doesn't access __class__""" return issubclass(type(obj), klass) class SomeClass(object): class_attribute = None def wibble(self): pass class X(object): pass try: next = next except NameError: def next(obj): return obj.next()	552 B	2016-06-08 10:18
📄 testcallable.py # 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 unittest2 as unittest from mock.tests.support import is_instance, X, SomeClass from mock import ( Mock, MagicMock, NonCallableMagicMock, NonCallableMock, patch, create_autospec, CallableMixin ) class TestCallable(unittest.TestCase): def assertNotCallable(self, mock): self.assertTrue(is_instance(mock, NonCallableMagicMock)) self.assertFalse(is_instance(mock, CallableMixin)) def test_non_callable(self): for mock in NonCallableMagicMock(), NonCallableMock(): self.assertRaises(TypeError, mock) self.assertFalse(hasattr(mock, '__call__')) self.assertIn(mock.__class__.__name__, repr(mock)) def test_heirarchy(self): self.assertTrue(issubclass(MagicMock, Mock)) self.assertTrue(issubclass(NonCallableMagicMock, NonCallableMock)) def test_attributes(self): one = NonCallableMock() self.assertTrue(issubclass(type(one.one), Mock)) two = NonCallableMagicMock() self.assertTrue(issubclass(type(two.two), MagicMock)) def test_subclasses(self): class MockSub(Mock): pass one = MockSub() self.assertTrue(issubclass(type(one.one), MockSub)) class MagicSub(MagicMock): pass two = MagicSub() self.assertTrue(issubclass(type(two.two), MagicSub)) def test_patch_spec(self): patcher = patch('%s.X' % __name__, spec=True) mock = patcher.start() self.addCleanup(patcher.stop) instance = mock() mock.assert_called_once_with() self.assertNotCallable(instance) self.assertRaises(TypeError, instance) def test_patch_spec_set(self): patcher = patch('%s.X' % __name__, spec_set=True) mock = patcher.start() self.addCleanup(patcher.stop) instance = mock() mock.assert_called_once_with() self.assertNotCallable(instance) self.assertRaises(TypeError, instance) def test_patch_spec_instance(self): patcher = patch('%s.X' % __name__, spec=X()) mock = patcher.start() self.addCleanup(patcher.stop) self.assertNotCallable(mock) self.assertRaises(TypeError, mock) def test_patch_spec_set_instance(self): patcher = patch('%s.X' % __name__, spec_set=X()) mock = patcher.start() self.addCleanup(patcher.stop) self.assertNotCallable(mock) self.assertRaises(TypeError, mock) def test_patch_spec_callable_class(self): class CallableX(X): def __call__(self): pass class Sub(CallableX): pass class Multi(SomeClass, Sub): pass class OldStyle: def __call__(self): pass class OldStyleSub(OldStyle): pass for arg in 'spec', 'spec_set': for Klass in CallableX, Sub, Multi, OldStyle, OldStyleSub: with patch('%s.X' % __name__, **{arg: Klass}) as mock: instance = mock() mock.assert_called_once_with() self.assertTrue(is_instance(instance, MagicMock)) # inherited spec self.assertRaises(AttributeError, getattr, instance, 'foobarbaz') result = instance() # instance is callable, result has no spec instance.assert_called_once_with() result(3, 2, 1) result.assert_called_once_with(3, 2, 1) result.foo(3, 2, 1) result.foo.assert_called_once_with(3, 2, 1) def test_create_autospec(self): mock = create_autospec(X) instance = mock() self.assertRaises(TypeError, instance) mock = create_autospec(X()) self.assertRaises(TypeError, mock) def test_create_autospec_instance(self): mock = create_autospec(SomeClass, instance=True) self.assertRaises(TypeError, mock) mock.wibble() mock.wibble.assert_called_once_with() self.assertRaises(TypeError, mock.wibble, 'some', 'args') if __name__ == "__main__": unittest.main()	4.33 KB	2016-06-08 10:18
📄 testhelpers.py # 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 six import unittest2 as unittest from mock import ( call, create_autospec, MagicMock, Mock, ANY, patch, PropertyMock ) from mock.mock import _Call, _CallList from datetime import datetime class SomeClass(object): def one(self, a, b): pass def two(self): pass def three(self, a=None): pass class AnyTest(unittest.TestCase): def test_any(self): self.assertEqual(ANY, object()) mock = Mock() mock(ANY) mock.assert_called_with(ANY) mock = Mock() mock(foo=ANY) mock.assert_called_with(foo=ANY) def test_repr(self): self.assertEqual(repr(ANY), '<ANY>') self.assertEqual(str(ANY), '<ANY>') def test_any_and_datetime(self): mock = Mock() mock(datetime.now(), foo=datetime.now()) mock.assert_called_with(ANY, foo=ANY) def test_any_mock_calls_comparison_order(self): mock = Mock() d = datetime.now() class Foo(object): def __eq__(self, other): return False def __ne__(self, other): return True for d in datetime.now(), Foo(): mock.reset_mock() mock(d, foo=d, bar=d) mock.method(d, zinga=d, alpha=d) mock().method(a1=d, z99=d) expected = [ call(ANY, foo=ANY, bar=ANY), call.method(ANY, zinga=ANY, alpha=ANY), call(), call().method(a1=ANY, z99=ANY) ] self.assertEqual(expected, mock.mock_calls) self.assertEqual(mock.mock_calls, expected) class CallTest(unittest.TestCase): def test_call_with_call(self): kall = _Call() self.assertEqual(kall, _Call()) self.assertEqual(kall, _Call(('',))) self.assertEqual(kall, _Call(((),))) self.assertEqual(kall, _Call(({},))) self.assertEqual(kall, _Call(('', ()))) self.assertEqual(kall, _Call(('', {}))) self.assertEqual(kall, _Call(('', (), {}))) self.assertEqual(kall, _Call(('foo',))) self.assertEqual(kall, _Call(('bar', ()))) self.assertEqual(kall, _Call(('baz', {}))) self.assertEqual(kall, _Call(('spam', (), {}))) kall = _Call(((1, 2, 3),)) self.assertEqual(kall, _Call(((1, 2, 3),))) self.assertEqual(kall, _Call(('', (1, 2, 3)))) self.assertEqual(kall, _Call(((1, 2, 3), {}))) self.assertEqual(kall, _Call(('', (1, 2, 3), {}))) kall = _Call(((1, 2, 4),)) self.assertNotEqual(kall, _Call(('', (1, 2, 3)))) self.assertNotEqual(kall, _Call(('', (1, 2, 3), {}))) kall = _Call(('foo', (1, 2, 4),)) self.assertNotEqual(kall, _Call(('', (1, 2, 4)))) self.assertNotEqual(kall, _Call(('', (1, 2, 4), {}))) self.assertNotEqual(kall, _Call(('bar', (1, 2, 4)))) self.assertNotEqual(kall, _Call(('bar', (1, 2, 4), {}))) kall = _Call(({'a': 3},)) self.assertEqual(kall, _Call(('', (), {'a': 3}))) self.assertEqual(kall, _Call(('', {'a': 3}))) self.assertEqual(kall, _Call(((), {'a': 3}))) self.assertEqual(kall, _Call(({'a': 3},))) def test_empty__Call(self): args = _Call() self.assertEqual(args, ()) self.assertEqual(args, ('foo',)) self.assertEqual(args, ((),)) self.assertEqual(args, ('foo', ())) self.assertEqual(args, ('foo',(), {})) self.assertEqual(args, ('foo', {})) self.assertEqual(args, ({},)) def test_named_empty_call(self): args = _Call(('foo', (), {})) self.assertEqual(args, ('foo',)) self.assertEqual(args, ('foo', ())) self.assertEqual(args, ('foo',(), {})) self.assertEqual(args, ('foo', {})) self.assertNotEqual(args, ((),)) self.assertNotEqual(args, ()) self.assertNotEqual(args, ({},)) self.assertNotEqual(args, ('bar',)) self.assertNotEqual(args, ('bar', ())) self.assertNotEqual(args, ('bar', {})) def test_call_with_args(self): args = _Call(((1, 2, 3), {})) self.assertEqual(args, ((1, 2, 3),)) self.assertEqual(args, ('foo', (1, 2, 3))) self.assertEqual(args, ('foo', (1, 2, 3), {})) self.assertEqual(args, ((1, 2, 3), {})) def test_named_call_with_args(self): args = _Call(('foo', (1, 2, 3), {})) self.assertEqual(args, ('foo', (1, 2, 3))) self.assertEqual(args, ('foo', (1, 2, 3), {})) self.assertNotEqual(args, ((1, 2, 3),)) self.assertNotEqual(args, ((1, 2, 3), {})) def test_call_with_kwargs(self): args = _Call(((), dict(a=3, b=4))) self.assertEqual(args, (dict(a=3, b=4),)) self.assertEqual(args, ('foo', dict(a=3, b=4))) self.assertEqual(args, ('foo', (), dict(a=3, b=4))) self.assertEqual(args, ((), dict(a=3, b=4))) def test_named_call_with_kwargs(self): args = _Call(('foo', (), dict(a=3, b=4))) self.assertEqual(args, ('foo', dict(a=3, b=4))) self.assertEqual(args, ('foo', (), dict(a=3, b=4))) self.assertNotEqual(args, (dict(a=3, b=4),)) self.assertNotEqual(args, ((), dict(a=3, b=4))) def test_call_with_args_call_empty_name(self): args = _Call(((1, 2, 3), {})) self.assertEqual(args, call(1, 2, 3)) self.assertEqual(call(1, 2, 3), args) self.assertIn(call(1, 2, 3), [args]) def test_call_ne(self): self.assertNotEqual(_Call(((1, 2, 3),)), call(1, 2)) self.assertFalse(_Call(((1, 2, 3),)) != call(1, 2, 3)) self.assertTrue(_Call(((1, 2), {})) != call(1, 2, 3)) def test_call_non_tuples(self): kall = _Call(((1, 2, 3),)) for value in 1, None, self, int: self.assertNotEqual(kall, value) self.assertFalse(kall == value) def test_repr(self): self.assertEqual(repr(_Call()), 'call()') self.assertEqual(repr(_Call(('foo',))), 'call.foo()') self.assertEqual(repr(_Call(((1, 2, 3), {'a': 'b'}))), "call(1, 2, 3, a='b')") self.assertEqual(repr(_Call(('bar', (1, 2, 3), {'a': 'b'}))), "call.bar(1, 2, 3, a='b')") self.assertEqual(repr(call), 'call') self.assertEqual(str(call), 'call') self.assertEqual(repr(call()), 'call()') self.assertEqual(repr(call(1)), 'call(1)') self.assertEqual(repr(call(zz='thing')), "call(zz='thing')") self.assertEqual(repr(call().foo), 'call().foo') self.assertEqual(repr(call(1).foo.bar(a=3).bing), 'call().foo.bar().bing') self.assertEqual( repr(call().foo(1, 2, a=3)), "call().foo(1, 2, a=3)" ) self.assertEqual(repr(call()()), "call()()") self.assertEqual(repr(call(1)(2)), "call()(2)") self.assertEqual( repr(call()().bar().baz.beep(1)), "call()().bar().baz.beep(1)" ) def test_call(self): self.assertEqual(call(), ('', (), {})) self.assertEqual(call('foo', 'bar', one=3, two=4), ('', ('foo', 'bar'), {'one': 3, 'two': 4})) mock = Mock() mock(1, 2, 3) mock(a=3, b=6) self.assertEqual(mock.call_args_list, [call(1, 2, 3), call(a=3, b=6)]) def test_attribute_call(self): self.assertEqual(call.foo(1), ('foo', (1,), {})) self.assertEqual(call.bar.baz(fish='eggs'), ('bar.baz', (), {'fish': 'eggs'})) mock = Mock() mock.foo(1, 2 ,3) mock.bar.baz(a=3, b=6) self.assertEqual(mock.method_calls, [call.foo(1, 2, 3), call.bar.baz(a=3, b=6)]) def test_extended_call(self): result = call(1).foo(2).bar(3, a=4) self.assertEqual(result, ('().foo().bar', (3,), dict(a=4))) mock = MagicMock() mock(1, 2, a=3, b=4) self.assertEqual(mock.call_args, call(1, 2, a=3, b=4)) self.assertNotEqual(mock.call_args, call(1, 2, 3)) self.assertEqual(mock.call_args_list, [call(1, 2, a=3, b=4)]) self.assertEqual(mock.mock_calls, [call(1, 2, a=3, b=4)]) mock = MagicMock() mock.foo(1).bar()().baz.beep(a=6) last_call = call.foo(1).bar()().baz.beep(a=6) self.assertEqual(mock.mock_calls[-1], last_call) self.assertEqual(mock.mock_calls, last_call.call_list()) def test_call_list(self): mock = MagicMock() mock(1) self.assertEqual(call(1).call_list(), mock.mock_calls) mock = MagicMock() mock(1).method(2) self.assertEqual(call(1).method(2).call_list(), mock.mock_calls) mock = MagicMock() mock(1).method(2)(3) self.assertEqual(call(1).method(2)(3).call_list(), mock.mock_calls) mock = MagicMock() int(mock(1).method(2)(3).foo.bar.baz(4)(5)) kall = call(1).method(2)(3).foo.bar.baz(4)(5).__int__() self.assertEqual(kall.call_list(), mock.mock_calls) def test_call_any(self): self.assertEqual(call, ANY) m = MagicMock() int(m) self.assertEqual(m.mock_calls, [ANY]) self.assertEqual([ANY], m.mock_calls) def test_two_args_call(self): args = _Call(((1, 2), {'a': 3}), two=True) self.assertEqual(len(args), 2) self.assertEqual(args[0], (1, 2)) self.assertEqual(args[1], {'a': 3}) other_args = _Call(((1, 2), {'a': 3})) self.assertEqual(args, other_args) class SpecSignatureTest(unittest.TestCase): def _check_someclass_mock(self, mock): self.assertRaises(AttributeError, getattr, mock, 'foo') mock.one(1, 2) mock.one.assert_called_with(1, 2) self.assertRaises(AssertionError, mock.one.assert_called_with, 3, 4) self.assertRaises(TypeError, mock.one, 1) mock.two() mock.two.assert_called_with() self.assertRaises(AssertionError, mock.two.assert_called_with, 3) self.assertRaises(TypeError, mock.two, 1) mock.three() mock.three.assert_called_with() self.assertRaises(AssertionError, mock.three.assert_called_with, 3) self.assertRaises(TypeError, mock.three, 3, 2) mock.three(1) mock.three.assert_called_with(1) mock.three(a=1) mock.three.assert_called_with(a=1) def test_basic(self): mock = create_autospec(SomeClass) self._check_someclass_mock(mock) mock = create_autospec(SomeClass()) self._check_someclass_mock(mock) def test_create_autospec_return_value(self): def f(): pass mock = create_autospec(f, return_value='foo') self.assertEqual(mock(), 'foo') class Foo(object): pass mock = create_autospec(Foo, return_value='foo') self.assertEqual(mock(), 'foo') def test_autospec_reset_mock(self): m = create_autospec(int) int(m) m.reset_mock() self.assertEqual(m.__int__.call_count, 0) def test_mocking_unbound_methods(self): class Foo(object): def foo(self, foo): pass p = patch.object(Foo, 'foo') mock_foo = p.start() Foo().foo(1) mock_foo.assert_called_with(1) @unittest.expectedFailure def test_create_autospec_unbound_methods(self): # see mock issue 128 class Foo(object): def foo(self): pass klass = create_autospec(Foo) instance = klass() self.assertRaises(TypeError, instance.foo, 1) # Note: no type checking on the "self" parameter klass.foo(1) klass.foo.assert_called_with(1) self.assertRaises(TypeError, klass.foo) def test_create_autospec_keyword_arguments(self): class Foo(object): a = 3 m = create_autospec(Foo, a='3') self.assertEqual(m.a, '3') @unittest.skipUnless(six.PY3, "Keyword only arguments Python 3 specific") def test_create_autospec_keyword_only_arguments(self): func_def = "def foo(a, , b=None):\n pass\n" namespace = {} exec (func_def, namespace) foo = namespace['foo'] m = create_autospec(foo) m(1) m.assert_called_with(1) self.assertRaises(TypeError, m, 1, 2) m(2, b=3) m.assert_called_with(2, b=3) def test_function_as_instance_attribute(self): obj = SomeClass() def f(a): pass obj.f = f mock = create_autospec(obj) mock.f('bing') mock.f.assert_called_with('bing') def test_spec_as_list(self): # because spec as a list of strings in the mock constructor means # something very different we treat a list instance as the type. mock = create_autospec([]) mock.append('foo') mock.append.assert_called_with('foo') self.assertRaises(AttributeError, getattr, mock, 'foo') class Foo(object): foo = [] mock = create_autospec(Foo) mock.foo.append(3) mock.foo.append.assert_called_with(3) self.assertRaises(AttributeError, getattr, mock.foo, 'foo') def test_attributes(self): class Sub(SomeClass): attr = SomeClass() sub_mock = create_autospec(Sub) for mock in (sub_mock, sub_mock.attr): self._check_someclass_mock(mock) def test_builtin_functions_types(self): # we could replace builtin functions / methods with a function # with args / kwargs signature. Using the builtin method type # as a spec seems to work fairly well though. class BuiltinSubclass(list): def bar(self, arg): pass sorted = sorted attr = {} mock = create_autospec(BuiltinSubclass) mock.append(3) mock.append.assert_called_with(3) self.assertRaises(AttributeError, getattr, mock.append, 'foo') mock.bar('foo') mock.bar.assert_called_with('foo') self.assertRaises(TypeError, mock.bar, 'foo', 'bar') self.assertRaises(AttributeError, getattr, mock.bar, 'foo') mock.sorted([1, 2]) mock.sorted.assert_called_with([1, 2]) self.assertRaises(AttributeError, getattr, mock.sorted, 'foo') mock.attr.pop(3) mock.attr.pop.assert_called_with(3) self.assertRaises(AttributeError, getattr, mock.attr, 'foo') def test_method_calls(self): class Sub(SomeClass): attr = SomeClass() mock = create_autospec(Sub) mock.one(1, 2) mock.two() mock.three(3) expected = [call.one(1, 2), call.two(), call.three(3)] self.assertEqual(mock.method_calls, expected) mock.attr.one(1, 2) mock.attr.two() mock.attr.three(3) expected.extend( [call.attr.one(1, 2), call.attr.two(), call.attr.three(3)] ) self.assertEqual(mock.method_calls, expected) def test_magic_methods(self): class BuiltinSubclass(list): attr = {} mock = create_autospec(BuiltinSubclass) self.assertEqual(list(mock), []) self.assertRaises(TypeError, int, mock) self.assertRaises(TypeError, int, mock.attr) self.assertEqual(list(mock), []) self.assertIsInstance(mock['foo'], MagicMock) self.assertIsInstance(mock.attr['foo'], MagicMock) def test_spec_set(self): class Sub(SomeClass): attr = SomeClass() for spec in (Sub, Sub()): mock = create_autospec(spec, spec_set=True) self._check_someclass_mock(mock) self.assertRaises(AttributeError, setattr, mock, 'foo', 'bar') self.assertRaises(AttributeError, setattr, mock.attr, 'foo', 'bar') def test_descriptors(self): class Foo(object): @classmethod def f(cls, a, b): pass @staticmethod def g(a, b): pass class Bar(Foo): pass class Baz(SomeClass, Bar): pass for spec in (Foo, Foo(), Bar, Bar(), Baz, Baz()): mock = create_autospec(spec) mock.f(1, 2) mock.f.assert_called_once_with(1, 2) mock.g(3, 4) mock.g.assert_called_once_with(3, 4) @unittest.skipIf(six.PY3, "No old style classes in Python 3") def test_old_style_classes(self): class Foo: def f(self, a, b): pass class Bar(Foo): g = Foo() for spec in (Foo, Foo(), Bar, Bar()): mock = create_autospec(spec) mock.f(1, 2) mock.f.assert_called_once_with(1, 2) self.assertRaises(AttributeError, getattr, mock, 'foo') self.assertRaises(AttributeError, getattr, mock.f, 'foo') mock.g.f(1, 2) mock.g.f.assert_called_once_with(1, 2) self.assertRaises(AttributeError, getattr, mock.g, 'foo') def test_recursive(self): class A(object): def a(self): pass foo = 'foo bar baz' bar = foo A.B = A mock = create_autospec(A) mock() self.assertFalse(mock.B.called) mock.a() mock.B.a() self.assertEqual(mock.method_calls, [call.a(), call.B.a()]) self.assertIs(A.foo, A.bar) self.assertIsNot(mock.foo, mock.bar) mock.foo.lower() self.assertRaises(AssertionError, mock.bar.lower.assert_called_with) def test_spec_inheritance_for_classes(self): class Foo(object): def a(self, x): pass class Bar(object): def f(self, y): pass class_mock = create_autospec(Foo) self.assertIsNot(class_mock, class_mock()) for this_mock in class_mock, class_mock(): this_mock.a(x=5) this_mock.a.assert_called_with(x=5) this_mock.a.assert_called_with(5) self.assertRaises(TypeError, this_mock.a, 'foo', 'bar') self.assertRaises(AttributeError, getattr, this_mock, 'b') instance_mock = create_autospec(Foo()) instance_mock.a(5) instance_mock.a.assert_called_with(5) instance_mock.a.assert_called_with(x=5) self.assertRaises(TypeError, instance_mock.a, 'foo', 'bar') self.assertRaises(AttributeError, getattr, instance_mock, 'b') # The return value isn't isn't callable self.assertRaises(TypeError, instance_mock) instance_mock.Bar.f(6) instance_mock.Bar.f.assert_called_with(6) instance_mock.Bar.f.assert_called_with(y=6) self.assertRaises(AttributeError, getattr, instance_mock.Bar, 'g') instance_mock.Bar().f(6) instance_mock.Bar().f.assert_called_with(6) instance_mock.Bar().f.assert_called_with(y=6) self.assertRaises(AttributeError, getattr, instance_mock.Bar(), 'g') def test_inherit(self): class Foo(object): a = 3 Foo.Foo = Foo # class mock = create_autospec(Foo) instance = mock() self.assertRaises(AttributeError, getattr, instance, 'b') attr_instance = mock.Foo() self.assertRaises(AttributeError, getattr, attr_instance, 'b') # instance mock = create_autospec(Foo()) self.assertRaises(AttributeError, getattr, mock, 'b') self.assertRaises(TypeError, mock) # attribute instance call_result = mock.Foo() self.assertRaises(AttributeError, getattr, call_result, 'b') def test_builtins(self): # used to fail with infinite recursion create_autospec(1) create_autospec(int) create_autospec('foo') create_autospec(str) create_autospec({}) create_autospec(dict) create_autospec([]) create_autospec(list) create_autospec(set()) create_autospec(set) create_autospec(1.0) create_autospec(float) create_autospec(1j) create_autospec(complex) create_autospec(False) create_autospec(True) def test_function(self): def f(a, b): pass mock = create_autospec(f) self.assertRaises(TypeError, mock) mock(1, 2) mock.assert_called_with(1, 2) mock.assert_called_with(1, b=2) mock.assert_called_with(a=1, b=2) f.f = f mock = create_autospec(f) self.assertRaises(TypeError, mock.f) mock.f(3, 4) mock.f.assert_called_with(3, 4) mock.f.assert_called_with(a=3, b=4) def test_skip_attributeerrors(self): class Raiser(object): def __get__(self, obj, type=None): if obj is None: raise AttributeError('Can only be accessed via an instance') class RaiserClass(object): raiser = Raiser() @staticmethod def existing(a, b): return a + b s = create_autospec(RaiserClass) self.assertRaises(TypeError, lambda x: s.existing(1, 2, 3)) s.existing(1, 2) self.assertRaises(AttributeError, lambda: s.nonexisting) # check we can fetch the raiser attribute and it has no spec obj = s.raiser obj.foo, obj.bar def test_signature_class(self): class Foo(object): def __init__(self, a, b=3): pass mock = create_autospec(Foo) self.assertRaises(TypeError, mock) mock(1) mock.assert_called_once_with(1) mock(4, 5) mock.assert_called_with(4, 5) @unittest.skipIf(six.PY3, 'no old style classes in Python 3') def test_signature_old_style_class(self): class Foo: def __init__(self, a, b=3): pass mock = create_autospec(Foo) self.assertRaises(TypeError, mock) mock(1) mock.assert_called_once_with(1) mock.assert_called_once_with(a=1) self.assertRaises(AssertionError, mock.assert_called_once_with, 2) mock(4, 5) mock.assert_called_with(4, 5) mock.assert_called_with(a=4, b=5) self.assertRaises(AssertionError, mock.assert_called_with, a=5, b=4) def test_class_with_no_init(self): # this used to raise an exception # due to trying to get a signature from object.__init__ class Foo(object): pass create_autospec(Foo) @unittest.skipIf(six.PY3, 'no old style classes in Python 3') def test_old_style_class_with_no_init(self): # this used to raise an exception # due to Foo.__init__ raising an AttributeError class Foo: pass create_autospec(Foo) def test_signature_callable(self): class Callable(object): def __init__(self, x, y): pass def __call__(self, a): pass mock = create_autospec(Callable) mock(1, 2) mock.assert_called_once_with(1, 2) mock.assert_called_once_with(x=1, y=2) self.assertRaises(TypeError, mock, 'a') instance = mock(1, 2) self.assertRaises(TypeError, instance) instance(a='a') instance.assert_called_once_with('a') instance.assert_called_once_with(a='a') instance('a') instance.assert_called_with('a') instance.assert_called_with(a='a') mock = create_autospec(Callable(1, 2)) mock(a='a') mock.assert_called_once_with(a='a') self.assertRaises(TypeError, mock) mock('a') mock.assert_called_with('a') def test_signature_noncallable(self): class NonCallable(object): def __init__(self): pass mock = create_autospec(NonCallable) instance = mock() mock.assert_called_once_with() self.assertRaises(TypeError, mock, 'a') self.assertRaises(TypeError, instance) self.assertRaises(TypeError, instance, 'a') mock = create_autospec(NonCallable()) self.assertRaises(TypeError, mock) self.assertRaises(TypeError, mock, 'a') def test_create_autospec_none(self): class Foo(object): bar = None mock = create_autospec(Foo) none = mock.bar self.assertNotIsInstance(none, type(None)) none.foo() none.foo.assert_called_once_with() def test_autospec_functions_with_self_in_odd_place(self): class Foo(object): def f(a, self): pass a = create_autospec(Foo) a.f(10) a.f.assert_called_with(10) a.f.assert_called_with(self=10) a.f(self=10) a.f.assert_called_with(10) a.f.assert_called_with(self=10) def test_autospec_property(self): class Foo(object): @property def foo(self): return 3 foo = create_autospec(Foo) mock_property = foo.foo # no spec on properties self.assertIsInstance(mock_property, MagicMock) mock_property(1, 2, 3) mock_property.abc(4, 5, 6) mock_property.assert_called_once_with(1, 2, 3) mock_property.abc.assert_called_once_with(4, 5, 6) def test_autospec_slots(self): class Foo(object): __slots__ = ['a'] foo = create_autospec(Foo) mock_slot = foo.a # no spec on slots mock_slot(1, 2, 3) mock_slot.abc(4, 5, 6) mock_slot.assert_called_once_with(1, 2, 3) mock_slot.abc.assert_called_once_with(4, 5, 6) class TestCallList(unittest.TestCase): def test_args_list_contains_call_list(self): mock = Mock() self.assertIsInstance(mock.call_args_list, _CallList) mock(1, 2) mock(a=3) mock(3, 4) mock(b=6) for kall in call(1, 2), call(a=3), call(3, 4), call(b=6): self.assertIn(kall, mock.call_args_list) calls = [call(a=3), call(3, 4)] self.assertIn(calls, mock.call_args_list) calls = [call(1, 2), call(a=3)] self.assertIn(calls, mock.call_args_list) calls = [call(3, 4), call(b=6)] self.assertIn(calls, mock.call_args_list) calls = [call(3, 4)] self.assertIn(calls, mock.call_args_list) self.assertNotIn(call('fish'), mock.call_args_list) self.assertNotIn([call('fish')], mock.call_args_list) def test_call_list_str(self): mock = Mock() mock(1, 2) mock.foo(a=3) mock.foo.bar().baz('fish', cat='dog') expected = ( "[call(1, 2),\n" " call.foo(a=3),\n" " call.foo.bar(),\n" " call.foo.bar().baz('fish', cat='dog')]" ) self.assertEqual(str(mock.mock_calls), expected) @unittest.skipIf(six.PY3, "Unicode is properly handled with Python 3") def test_call_list_unicode(self): # See github issue #328 mock = Mock() class NonAsciiRepr(object): def __repr__(self): return "\xe9" mock({unicode("a"): NonAsciiRepr()}) self.assertEqual(str(mock.mock_calls), "[call(a=\xe9)]") def test_propertymock(self): p = patch('%s.SomeClass.one' % __name__, new_callable=PropertyMock) mock = p.start() try: SomeClass.one mock.assert_called_once_with() s = SomeClass() s.one mock.assert_called_with() self.assertEqual(mock.mock_calls, [call(), call()]) s.one = 3 self.assertEqual(mock.mock_calls, [call(), call(), call(3)]) finally: p.stop() def test_propertymock_returnvalue(self): m = MagicMock() p = PropertyMock() type(m).foo = p returned = m.foo p.assert_called_once_with() self.assertIsInstance(returned, MagicMock) self.assertNotIsInstance(returned, PropertyMock) if __name__ == '__main__': unittest.main()	28.02 KB	2016-06-08 10:18
📄 testmagicmethods.py # 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/ from __future__ import division try: unicode except NameError: # Python 3 unicode = str long = int import inspect import sys import textwrap import six import unittest2 as unittest from mock import Mock, MagicMock from mock.mock import _magics class TestMockingMagicMethods(unittest.TestCase): def test_deleting_magic_methods(self): mock = Mock() self.assertFalse(hasattr(mock, '__getitem__')) mock.__getitem__ = Mock() self.assertTrue(hasattr(mock, '__getitem__')) del mock.__getitem__ self.assertFalse(hasattr(mock, '__getitem__')) def test_magicmock_del(self): mock = MagicMock() # before using getitem del mock.__getitem__ self.assertRaises(TypeError, lambda: mock['foo']) mock = MagicMock() # this time use it first mock['foo'] del mock.__getitem__ self.assertRaises(TypeError, lambda: mock['foo']) def test_magic_method_wrapping(self): mock = Mock() def f(self, name): return self, 'fish' mock.__getitem__ = f self.assertIsNot(mock.__getitem__, f) self.assertEqual(mock['foo'], (mock, 'fish')) self.assertEqual(mock.__getitem__('foo'), (mock, 'fish')) mock.__getitem__ = mock self.assertIs(mock.__getitem__, mock) def test_magic_methods_isolated_between_mocks(self): mock1 = Mock() mock2 = Mock() mock1.__iter__ = Mock(return_value=iter([])) self.assertEqual(list(mock1), []) self.assertRaises(TypeError, lambda: list(mock2)) def test_repr(self): mock = Mock() self.assertEqual(repr(mock), "<Mock id='%s'>" % id(mock)) mock.__repr__ = lambda s: 'foo' self.assertEqual(repr(mock), 'foo') def test_str(self): mock = Mock() self.assertEqual(str(mock), object.__str__(mock)) mock.__str__ = lambda s: 'foo' self.assertEqual(str(mock), 'foo') @unittest.skipIf(six.PY3, "no unicode in Python 3") def test_unicode(self): mock = Mock() self.assertEqual(unicode(mock), unicode(str(mock))) mock.__unicode__ = lambda s: unicode('foo') self.assertEqual(unicode(mock), unicode('foo')) def test_dict_methods(self): mock = Mock() self.assertRaises(TypeError, lambda: mock['foo']) def _del(): del mock['foo'] def _set(): mock['foo'] = 3 self.assertRaises(TypeError, _del) self.assertRaises(TypeError, _set) _dict = {} def getitem(s, name): return _dict[name] def setitem(s, name, value): _dict[name] = value def delitem(s, name): del _dict[name] mock.__setitem__ = setitem mock.__getitem__ = getitem mock.__delitem__ = delitem self.assertRaises(KeyError, lambda: mock['foo']) mock['foo'] = 'bar' self.assertEqual(_dict, {'foo': 'bar'}) self.assertEqual(mock['foo'], 'bar') del mock['foo'] self.assertEqual(_dict, {}) def test_numeric(self): original = mock = Mock() mock.value = 0 self.assertRaises(TypeError, lambda: mock + 3) def add(self, other): mock.value += other return self mock.__add__ = add self.assertEqual(mock + 3, mock) self.assertEqual(mock.value, 3) del mock.__add__ def iadd(mock): mock += 3 self.assertRaises(TypeError, iadd, mock) mock.__iadd__ = add mock += 6 self.assertEqual(mock, original) self.assertEqual(mock.value, 9) self.assertRaises(TypeError, lambda: 3 + mock) mock.__radd__ = add self.assertEqual(7 + mock, mock) self.assertEqual(mock.value, 16) def test_division(self): original = mock = Mock() mock.value = 32 self.assertRaises(TypeError, lambda: mock / 2) def truediv(self, other): mock.value /= other return self mock.__truediv__ = truediv self.assertEqual(mock / 2, mock) self.assertEqual(mock.value, 16) del mock.__truediv__ if six.PY3: def itruediv(mock): mock /= 4 self.assertRaises(TypeError, itruediv, mock) mock.__itruediv__ = truediv mock /= 8 self.assertEqual(mock, original) self.assertEqual(mock.value, 2) else: mock.value = 2 self.assertRaises(TypeError, lambda: 8 / mock) mock.__rtruediv__ = truediv self.assertEqual(0.5 / mock, mock) self.assertEqual(mock.value, 4) def test_hash(self): mock = Mock() # test delegation self.assertEqual(hash(mock), Mock.__hash__(mock)) def _hash(s): return 3 mock.__hash__ = _hash self.assertEqual(hash(mock), 3) def test_nonzero(self): m = Mock() self.assertTrue(bool(m)) nonzero = lambda s: False if six.PY2: m.__nonzero__ = nonzero else: m.__bool__ = nonzero self.assertFalse(bool(m)) def test_comparison(self): mock = Mock() def comp(s, o): return True mock.__lt__ = mock.__gt__ = mock.__le__ = mock.__ge__ = comp self. assertTrue(mock < 3) self. assertTrue(mock > 3) self. assertTrue(mock <= 3) self. assertTrue(mock >= 3) if six.PY2: # incomparable in Python 3 self.assertEqual(Mock() < 3, object() < 3) self.assertEqual(Mock() > 3, object() > 3) self.assertEqual(Mock() <= 3, object() <= 3) self.assertEqual(Mock() >= 3, object() >= 3) else: self.assertRaises(TypeError, lambda: MagicMock() < object()) self.assertRaises(TypeError, lambda: object() < MagicMock()) self.assertRaises(TypeError, lambda: MagicMock() < MagicMock()) self.assertRaises(TypeError, lambda: MagicMock() > object()) self.assertRaises(TypeError, lambda: object() > MagicMock()) self.assertRaises(TypeError, lambda: MagicMock() > MagicMock()) self.assertRaises(TypeError, lambda: MagicMock() <= object()) self.assertRaises(TypeError, lambda: object() <= MagicMock()) self.assertRaises(TypeError, lambda: MagicMock() <= MagicMock()) self.assertRaises(TypeError, lambda: MagicMock() >= object()) self.assertRaises(TypeError, lambda: object() >= MagicMock()) self.assertRaises(TypeError, lambda: MagicMock() >= MagicMock()) def test_equality(self): for mock in Mock(), MagicMock(): self.assertEqual(mock == mock, True) self.assertIsInstance(mock == mock, bool) self.assertEqual(mock != mock, False) self.assertIsInstance(mock != mock, bool) self.assertEqual(mock == object(), False) self.assertEqual(mock != object(), True) def eq(self, other): return other == 3 mock.__eq__ = eq self.assertTrue(mock == 3) self.assertFalse(mock == 4) def ne(self, other): return other == 3 mock.__ne__ = ne self.assertTrue(mock != 3) self.assertFalse(mock != 4) mock = MagicMock() mock.__eq__.return_value = True self.assertIsInstance(mock == 3, bool) self.assertEqual(mock == 3, True) mock.__ne__.return_value = False self.assertIsInstance(mock != 3, bool) self.assertEqual(mock != 3, False) def test_len_contains_iter(self): mock = Mock() self.assertRaises(TypeError, len, mock) self.assertRaises(TypeError, iter, mock) self.assertRaises(TypeError, lambda: 'foo' in mock) mock.__len__ = lambda s: 6 self.assertEqual(len(mock), 6) mock.__contains__ = lambda s, o: o == 3 self.assertIn(3, mock) self.assertNotIn(6, mock) mock.__iter__ = lambda s: iter('foobarbaz') self.assertEqual(list(mock), list('foobarbaz')) def test_magicmock(self): mock = MagicMock() mock.__iter__.return_value = iter([1, 2, 3]) self.assertEqual(list(mock), [1, 2, 3]) name = '__nonzero__' other = '__bool__' if six.PY3: name, other = other, name getattr(mock, name).return_value = False self.assertFalse(hasattr(mock, other)) self.assertFalse(bool(mock)) for entry in _magics: self.assertTrue(hasattr(mock, entry)) self.assertFalse(hasattr(mock, '__imaginery__')) def test_magic_mock_equality(self): mock = MagicMock() self.assertIsInstance(mock == object(), bool) self.assertIsInstance(mock != object(), bool) self.assertEqual(mock == object(), False) self.assertEqual(mock != object(), True) self.assertEqual(mock == mock, True) self.assertEqual(mock != mock, False) def test_magicmock_defaults(self): mock = MagicMock() self.assertEqual(int(mock), 1) self.assertEqual(complex(mock), 1j) self.assertEqual(float(mock), 1.0) self.assertEqual(long(mock), long(1)) self.assertNotIn(object(), mock) self.assertEqual(len(mock), 0) self.assertEqual(list(mock), []) self.assertEqual(hash(mock), object.__hash__(mock)) self.assertEqual(str(mock), object.__str__(mock)) self.assertEqual(unicode(mock), object.__str__(mock)) self.assertIsInstance(unicode(mock), unicode) self.assertTrue(bool(mock)) if six.PY2: self.assertEqual(oct(mock), '1') else: # in Python 3 oct and hex use __index__ # so these tests are for __index__ in py3k self.assertEqual(oct(mock), '0o1') self.assertEqual(hex(mock), '0x1') # how to test __sizeof__ ? @unittest.skipIf(six.PY3, "no __cmp__ in Python 3") def test_non_default_magic_methods(self): mock = MagicMock() self.assertRaises(AttributeError, lambda: mock.__cmp__) mock = Mock() mock.__cmp__ = lambda s, o: 0 self.assertEqual(mock, object()) def test_magic_methods_and_spec(self): class Iterable(object): def __iter__(self): pass mock = Mock(spec=Iterable) self.assertRaises(AttributeError, lambda: mock.__iter__) mock.__iter__ = Mock(return_value=iter([])) self.assertEqual(list(mock), []) class NonIterable(object): pass mock = Mock(spec=NonIterable) self.assertRaises(AttributeError, lambda: mock.__iter__) def set_int(): mock.__int__ = Mock(return_value=iter([])) self.assertRaises(AttributeError, set_int) mock = MagicMock(spec=Iterable) self.assertEqual(list(mock), []) self.assertRaises(AttributeError, set_int) def test_magic_methods_and_spec_set(self): class Iterable(object): def __iter__(self): pass mock = Mock(spec_set=Iterable) self.assertRaises(AttributeError, lambda: mock.__iter__) mock.__iter__ = Mock(return_value=iter([])) self.assertEqual(list(mock), []) class NonIterable(object): pass mock = Mock(spec_set=NonIterable) self.assertRaises(AttributeError, lambda: mock.__iter__) def set_int(): mock.__int__ = Mock(return_value=iter([])) self.assertRaises(AttributeError, set_int) mock = MagicMock(spec_set=Iterable) self.assertEqual(list(mock), []) self.assertRaises(AttributeError, set_int) def test_setting_unsupported_magic_method(self): mock = MagicMock() def set_setattr(): mock.__setattr__ = lambda self, name: None self.assertRaisesRegex(AttributeError, "Attempting to set unsupported magic method '__setattr__'.", set_setattr ) def test_attributes_and_return_value(self): mock = MagicMock() attr = mock.foo def _get_type(obj): # the type of every mock (or magicmock) is a custom subclass # so the real type is the second in the mro return type(obj).__mro__[1] self.assertEqual(_get_type(attr), MagicMock) returned = mock() self.assertEqual(_get_type(returned), MagicMock) def test_magic_methods_are_magic_mocks(self): mock = MagicMock() self.assertIsInstance(mock.__getitem__, MagicMock) mock[1][2].__getitem__.return_value = 3 self.assertEqual(mock[1][2][3], 3) def test_magic_method_reset_mock(self): mock = MagicMock() str(mock) self.assertTrue(mock.__str__.called) mock.reset_mock() self.assertFalse(mock.__str__.called) def test_dir(self): # overriding the default implementation for mock in Mock(), MagicMock(): def _dir(self): return ['foo'] mock.__dir__ = _dir self.assertEqual(dir(mock), ['foo']) @unittest.skipIf('PyPy' in sys.version, "This fails differently on pypy") def test_bound_methods(self): m = Mock() # XXXX should this be an expected failure instead? # this seems like it should work, but is hard to do without introducing # other api inconsistencies. Failure message could be better though. m.__iter__ = [3].__iter__ self.assertRaises(TypeError, iter, m) def test_magic_method_type(self): class Foo(MagicMock): pass foo = Foo() self.assertIsInstance(foo.__int__, Foo) def test_descriptor_from_class(self): m = MagicMock() type(m).__str__.return_value = 'foo' self.assertEqual(str(m), 'foo') def test_iterable_as_iter_return_value(self): m = MagicMock() m.__iter__.return_value = [1, 2, 3] self.assertEqual(list(m), [1, 2, 3]) self.assertEqual(list(m), [1, 2, 3]) m.__iter__.return_value = iter([4, 5, 6]) self.assertEqual(list(m), [4, 5, 6]) self.assertEqual(list(m), []) @unittest.skipIf(sys.version_info < (3, 5), "@ added in Python 3.5") def test_matmul(self): src = textwrap.dedent("""\ m = MagicMock() self.assertIsInstance(m @ 1, MagicMock) m.__matmul__.return_value = 42 m.__rmatmul__.return_value = 666 m.__imatmul__.return_value = 24 self.assertEqual(m @ 1, 42) self.assertEqual(1 @ m, 666) m @= 24 self.assertEqual(m, 24) """) exec(src) def test_divmod_and_rdivmod(self): m = MagicMock() self.assertIsInstance(divmod(5, m), MagicMock) m.__divmod__.return_value = (2, 1) self.assertEqual(divmod(m, 2), (2, 1)) m = MagicMock() foo = divmod(2, m) self.assertIsInstance(foo, MagicMock) foo_direct = m.__divmod__(2) self.assertIsInstance(foo_direct, MagicMock) bar = divmod(m, 2) self.assertIsInstance(bar, MagicMock) bar_direct = m.__rdivmod__(2) self.assertIsInstance(bar_direct, MagicMock) # http://bugs.python.org/issue23310 # Check if you can change behaviour of magic methds in MagicMock init def test_magic_in_initialization(self): m = MagicMock({'__str__.return_value': "12"}) self.assertEqual(str(m), "12") def test_changing_magic_set_in_initialization(self): m = MagicMock({'__str__.return_value': "12"}) m.__str__.return_value = "13" self.assertEqual(str(m), "13") m = MagicMock({'__str__.return_value': "12"}) m.configure_mock({'__str__.return_value': "14"}) self.assertEqual(str(m), "14") if __name__ == '__main__': unittest.main()	16 KB	2016-06-08 10:18
📄 testmock.py # 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 copy import pickle import sys import tempfile import six import unittest2 as unittest import mock from mock import ( call, DEFAULT, patch, sentinel, MagicMock, Mock, NonCallableMock, NonCallableMagicMock, create_autospec ) from mock.mock import _CallList from mock.tests.support import ( callable, is_instance, next ) try: unicode except NameError: unicode = str class Iter(object): def __init__(self): self.thing = iter(['this', 'is', 'an', 'iter']) def __iter__(self): return self def next(self): return next(self.thing) __next__ = next class Something(object): def meth(self, a, b, c, d=None): pass @classmethod def cmeth(cls, a, b, c, d=None): pass @staticmethod def smeth(a, b, c, d=None): pass class Subclass(MagicMock): pass class Thing(object): attribute = 6 foo = 'bar' class MockTest(unittest.TestCase): def test_all(self): # if __all__ is badly defined then import * will raise an error # We have to exec it because you can't import * inside a method # in Python 3 exec("from mock import ") def test_constructor(self): mock = Mock() self.assertFalse(mock.called, "called not initialised correctly") self.assertEqual(mock.call_count, 0, "call_count not initialised correctly") self.assertTrue(is_instance(mock.return_value, Mock), "return_value not initialised correctly") self.assertEqual(mock.call_args, None, "call_args not initialised correctly") self.assertEqual(mock.call_args_list, [], "call_args_list not initialised correctly") self.assertEqual(mock.method_calls, [], "method_calls not initialised correctly") # Can't use hasattr for this test as it always returns True on a mock self.assertNotIn('_items', mock.__dict__, "default mock should not have '_items' attribute") self.assertIsNone(mock._mock_parent, "parent not initialised correctly") self.assertIsNone(mock._mock_methods, "methods not initialised correctly") self.assertEqual(mock._mock_children, {}, "children not initialised incorrectly") def test_return_value_in_constructor(self): mock = Mock(return_value=None) self.assertIsNone(mock.return_value, "return value in constructor not honoured") def test_repr(self): mock = Mock(name='foo') self.assertIn('foo', repr(mock)) self.assertIn("'%s'" % id(mock), repr(mock)) mocks = [(Mock(), 'mock'), (Mock(name='bar'), 'bar')] for mock, name in mocks: self.assertIn('%s.bar' % name, repr(mock.bar)) self.assertIn('%s.foo()' % name, repr(mock.foo())) self.assertIn('%s.foo().bing' % name, repr(mock.foo().bing)) self.assertIn('%s()' % name, repr(mock())) self.assertIn('%s()()' % name, repr(mock()())) self.assertIn('%s()().foo.bar.baz().bing' % name, repr(mock()().foo.bar.baz().bing)) def test_repr_with_spec(self): class X(object): pass mock = Mock(spec=X) self.assertIn(" spec='X' ", repr(mock)) mock = Mock(spec=X()) self.assertIn(" spec='X' ", repr(mock)) mock = Mock(spec_set=X) self.assertIn(" spec_set='X' ", repr(mock)) mock = Mock(spec_set=X()) self.assertIn(" spec_set='X' ", repr(mock)) mock = Mock(spec=X, name='foo') self.assertIn(" spec='X' ", repr(mock)) self.assertIn(" name='foo' ", repr(mock)) mock = Mock(name='foo') self.assertNotIn("spec", repr(mock)) mock = Mock() self.assertNotIn("spec", repr(mock)) mock = Mock(spec=['foo']) self.assertNotIn("spec", repr(mock)) def test_side_effect(self): mock = Mock() def effect(args, kwargs): raise SystemError('kablooie') mock.side_effect = effect self.assertRaises(SystemError, mock, 1, 2, fish=3) mock.assert_called_with(1, 2, fish=3) results = [1, 2, 3] def effect(): return results.pop() mock.side_effect = effect self.assertEqual([mock(), mock(), mock()], [3, 2, 1], "side effect not used correctly") mock = Mock(side_effect=sentinel.SideEffect) self.assertEqual(mock.side_effect, sentinel.SideEffect, "side effect in constructor not used") def side_effect(): return DEFAULT mock = Mock(side_effect=side_effect, return_value=sentinel.RETURN) self.assertEqual(mock(), sentinel.RETURN) def test_autospec_side_effect(self): # Test for issue17826 results = [1, 2, 3] def effect(): return results.pop() def f(): pass mock = create_autospec(f) mock.side_effect = [1, 2, 3] self.assertEqual([mock(), mock(), mock()], [1, 2, 3], "side effect not used correctly in create_autospec") # Test where side effect is a callable results = [1, 2, 3] mock = create_autospec(f) mock.side_effect = effect self.assertEqual([mock(), mock(), mock()], [3, 2, 1], "callable side effect not used correctly") def test_autospec_side_effect_exception(self): # Test for issue 23661 def f(): pass mock = create_autospec(f) mock.side_effect = ValueError('Bazinga!') self.assertRaisesRegex(ValueError, 'Bazinga!', mock) @unittest.skipUnless('java' in sys.platform, 'This test only applies to Jython') def test_java_exception_side_effect(self): import java mock = Mock(side_effect=java.lang.RuntimeException("Boom!")) # can't use assertRaises with java exceptions try: mock(1, 2, fish=3) except java.lang.RuntimeException: pass else: self.fail('java exception not raised') mock.assert_called_with(1,2, fish=3) def test_reset_mock(self): parent = Mock() spec = ["something"] mock = Mock(name="child", parent=parent, spec=spec) mock(sentinel.Something, something=sentinel.SomethingElse) something = mock.something mock.something() mock.side_effect = sentinel.SideEffect return_value = mock.return_value return_value() mock.reset_mock() self.assertEqual(mock._mock_name, "child", "name incorrectly reset") self.assertEqual(mock._mock_parent, parent, "parent incorrectly reset") self.assertEqual(mock._mock_methods, spec, "methods incorrectly reset") self.assertFalse(mock.called, "called not reset") self.assertEqual(mock.call_count, 0, "call_count not reset") self.assertEqual(mock.call_args, None, "call_args not reset") self.assertEqual(mock.call_args_list, [], "call_args_list not reset") self.assertEqual(mock.method_calls, [], "method_calls not initialised correctly: %r != %r" % (mock.method_calls, [])) self.assertEqual(mock.mock_calls, []) self.assertEqual(mock.side_effect, sentinel.SideEffect, "side_effect incorrectly reset") self.assertEqual(mock.return_value, return_value, "return_value incorrectly reset") self.assertFalse(return_value.called, "return value mock not reset") self.assertEqual(mock._mock_children, {'something': something}, "children reset incorrectly") self.assertEqual(mock.something, something, "children incorrectly cleared") self.assertFalse(mock.something.called, "child not reset") def test_reset_mock_recursion(self): mock = Mock() mock.return_value = mock # used to cause recursion mock.reset_mock() def test_reset_mock_on_mock_open_issue_18622(self): a = mock.mock_open() a.reset_mock() def test_call(self): mock = Mock() self.assertTrue(is_instance(mock.return_value, Mock), "Default return_value should be a Mock") result = mock() self.assertEqual(mock(), result, "different result from consecutive calls") mock.reset_mock() ret_val = mock(sentinel.Arg) self.assertTrue(mock.called, "called not set") self.assertEqual(mock.call_count, 1, "call_count incoreect") self.assertEqual(mock.call_args, ((sentinel.Arg,), {}), "call_args not set") self.assertEqual(mock.call_args_list, [((sentinel.Arg,), {})], "call_args_list not initialised correctly") mock.return_value = sentinel.ReturnValue ret_val = mock(sentinel.Arg, key=sentinel.KeyArg) self.assertEqual(ret_val, sentinel.ReturnValue, "incorrect return value") self.assertEqual(mock.call_count, 2, "call_count incorrect") self.assertEqual(mock.call_args, ((sentinel.Arg,), {'key': sentinel.KeyArg}), "call_args not set") self.assertEqual(mock.call_args_list, [ ((sentinel.Arg,), {}), ((sentinel.Arg,), {'key': sentinel.KeyArg}) ], "call_args_list not set") def test_call_args_comparison(self): mock = Mock() mock() mock(sentinel.Arg) mock(kw=sentinel.Kwarg) mock(sentinel.Arg, kw=sentinel.Kwarg) self.assertEqual(mock.call_args_list, [ (), ((sentinel.Arg,),), ({"kw": sentinel.Kwarg},), ((sentinel.Arg,), {"kw": sentinel.Kwarg}) ]) self.assertEqual(mock.call_args, ((sentinel.Arg,), {"kw": sentinel.Kwarg})) # Comparing call_args to a long sequence should not raise # an exception. See issue 24857. self.assertFalse(mock.call_args == "a long sequence") def test_assert_called_with(self): mock = Mock() mock() # Will raise an exception if it fails mock.assert_called_with() self.assertRaises(AssertionError, mock.assert_called_with, 1) mock.reset_mock() self.assertRaises(AssertionError, mock.assert_called_with) mock(1, 2, 3, a='fish', b='nothing') mock.assert_called_with(1, 2, 3, a='fish', b='nothing') def test_assert_called_with_function_spec(self): def f(a, b, c, d=None): pass mock = Mock(spec=f) mock(1, b=2, c=3) mock.assert_called_with(1, 2, 3) mock.assert_called_with(a=1, b=2, c=3) self.assertRaises(AssertionError, mock.assert_called_with, 1, b=3, c=2) # Expected call doesn't match the spec's signature with self.assertRaises(AssertionError) as cm: mock.assert_called_with(e=8) if hasattr(cm.exception, '__cause__'): self.assertIsInstance(cm.exception.__cause__, TypeError) def test_assert_called_with_method_spec(self): def _check(mock): mock(1, b=2, c=3) mock.assert_called_with(1, 2, 3) mock.assert_called_with(a=1, b=2, c=3) self.assertRaises(AssertionError, mock.assert_called_with, 1, b=3, c=2) mock = Mock(spec=Something().meth) _check(mock) mock = Mock(spec=Something.cmeth) _check(mock) mock = Mock(spec=Something().cmeth) _check(mock) mock = Mock(spec=Something.smeth) _check(mock) mock = Mock(spec=Something().smeth) _check(mock) def test_assert_called_once_with(self): mock = Mock() mock() # Will raise an exception if it fails mock.assert_called_once_with() mock() self.assertRaises(AssertionError, mock.assert_called_once_with) mock.reset_mock() self.assertRaises(AssertionError, mock.assert_called_once_with) mock('foo', 'bar', baz=2) mock.assert_called_once_with('foo', 'bar', baz=2) mock.reset_mock() mock('foo', 'bar', baz=2) self.assertRaises( AssertionError, lambda: mock.assert_called_once_with('bob', 'bar', baz=2) ) def test_assert_called_once_with_function_spec(self): def f(a, b, c, d=None): pass mock = Mock(spec=f) mock(1, b=2, c=3) mock.assert_called_once_with(1, 2, 3) mock.assert_called_once_with(a=1, b=2, c=3) self.assertRaises(AssertionError, mock.assert_called_once_with, 1, b=3, c=2) # Expected call doesn't match the spec's signature with self.assertRaises(AssertionError) as cm: mock.assert_called_once_with(e=8) if hasattr(cm.exception, '__cause__'): self.assertIsInstance(cm.exception.__cause__, TypeError) # Mock called more than once => always fails mock(4, 5, 6) self.assertRaises(AssertionError, mock.assert_called_once_with, 1, 2, 3) self.assertRaises(AssertionError, mock.assert_called_once_with, 4, 5, 6) def test_attribute_access_returns_mocks(self): mock = Mock() something = mock.something self.assertTrue(is_instance(something, Mock), "attribute isn't a mock") self.assertEqual(mock.something, something, "different attributes returned for same name") # Usage example mock = Mock() mock.something.return_value = 3 self.assertEqual(mock.something(), 3, "method returned wrong value") self.assertTrue(mock.something.called, "method didn't record being called") def test_attributes_have_name_and_parent_set(self): mock = Mock() something = mock.something self.assertEqual(something._mock_name, "something", "attribute name not set correctly") self.assertEqual(something._mock_parent, mock, "attribute parent not set correctly") def test_method_calls_recorded(self): mock = Mock() mock.something(3, fish=None) mock.something_else.something(6, cake=sentinel.Cake) self.assertEqual(mock.something_else.method_calls, [("something", (6,), {'cake': sentinel.Cake})], "method calls not recorded correctly") self.assertEqual(mock.method_calls, [ ("something", (3,), {'fish': None}), ("something_else.something", (6,), {'cake': sentinel.Cake}) ], "method calls not recorded correctly") def test_method_calls_compare_easily(self): mock = Mock() mock.something() self.assertEqual(mock.method_calls, [('something',)]) self.assertEqual(mock.method_calls, [('something', (), {})]) mock = Mock() mock.something('different') self.assertEqual(mock.method_calls, [('something', ('different',))]) self.assertEqual(mock.method_calls, [('something', ('different',), {})]) mock = Mock() mock.something(x=1) self.assertEqual(mock.method_calls, [('something', {'x': 1})]) self.assertEqual(mock.method_calls, [('something', (), {'x': 1})]) mock = Mock() mock.something('different', some='more') self.assertEqual(mock.method_calls, [ ('something', ('different',), {'some': 'more'}) ]) def test_only_allowed_methods_exist(self): for spec in ['something'], ('something',): for arg in 'spec', 'spec_set': mock = Mock({arg: spec}) # this should be allowed mock.something self.assertRaisesRegex( AttributeError, "Mock object has no attribute 'something_else'", getattr, mock, 'something_else' ) def test_from_spec(self): class Something(object): x = 3 __something__ = None def y(self): pass def test_attributes(mock): # should work mock.x mock.y mock.__something__ self.assertRaisesRegex( AttributeError, "Mock object has no attribute 'z'", getattr, mock, 'z' ) self.assertRaisesRegex( AttributeError, "Mock object has no attribute '__foobar__'", getattr, mock, '__foobar__' ) test_attributes(Mock(spec=Something)) test_attributes(Mock(spec=Something())) def test_wraps_calls(self): real = Mock() mock = Mock(wraps=real) self.assertEqual(mock(), real()) real.reset_mock() mock(1, 2, fish=3) real.assert_called_with(1, 2, fish=3) def test_wraps_call_with_nondefault_return_value(self): real = Mock() mock = Mock(wraps=real) mock.return_value = 3 self.assertEqual(mock(), 3) self.assertFalse(real.called) def test_wraps_attributes(self): class Real(object): attribute = Mock() real = Real() mock = Mock(wraps=real) self.assertEqual(mock.attribute(), real.attribute()) self.assertRaises(AttributeError, lambda: mock.fish) self.assertNotEqual(mock.attribute, real.attribute) result = mock.attribute.frog(1, 2, fish=3) Real.attribute.frog.assert_called_with(1, 2, fish=3) self.assertEqual(result, Real.attribute.frog()) def test_exceptional_side_effect(self): mock = Mock(side_effect=AttributeError) self.assertRaises(AttributeError, mock) mock = Mock(side_effect=AttributeError('foo')) self.assertRaises(AttributeError, mock) def test_baseexceptional_side_effect(self): mock = Mock(side_effect=KeyboardInterrupt) self.assertRaises(KeyboardInterrupt, mock) mock = Mock(side_effect=KeyboardInterrupt('foo')) self.assertRaises(KeyboardInterrupt, mock) def test_assert_called_with_message(self): mock = Mock() self.assertRaisesRegex(AssertionError, 'Not called', mock.assert_called_with) def test_assert_called_once_with_message(self): mock = Mock(name='geoffrey') self.assertRaisesRegex(AssertionError, r"Expected 'geoffrey' to be called once\.", mock.assert_called_once_with) def test__name__(self): mock = Mock() self.assertRaises(AttributeError, lambda: mock.__name__) mock.__name__ = 'foo' self.assertEqual(mock.__name__, 'foo') def test_spec_list_subclass(self): class Sub(list): pass mock = Mock(spec=Sub(['foo'])) mock.append(3) mock.append.assert_called_with(3) self.assertRaises(AttributeError, getattr, mock, 'foo') def test_spec_class(self): class X(object): pass mock = Mock(spec=X) self.assertIsInstance(mock, X) mock = Mock(spec=X()) self.assertIsInstance(mock, X) self.assertIs(mock.__class__, X) self.assertEqual(Mock().__class__.__name__, 'Mock') mock = Mock(spec_set=X) self.assertIsInstance(mock, X) mock = Mock(spec_set=X()) self.assertIsInstance(mock, X) def test_setting_attribute_with_spec_set(self): class X(object): y = 3 mock = Mock(spec=X) mock.x = 'foo' mock = Mock(spec_set=X) def set_attr(): mock.x = 'foo' mock.y = 'foo' self.assertRaises(AttributeError, set_attr) def test_copy(self): current = sys.getrecursionlimit() self.addCleanup(sys.setrecursionlimit, current) # can't use sys.maxint as this doesn't exist in Python 3 sys.setrecursionlimit(int(10e8)) # this segfaults without the fix in place copy.copy(Mock()) @unittest.skipIf(six.PY3, "no old style classes in Python 3") def test_spec_old_style_classes(self): class Foo: bar = 7 mock = Mock(spec=Foo) mock.bar = 6 self.assertRaises(AttributeError, lambda: mock.foo) mock = Mock(spec=Foo()) mock.bar = 6 self.assertRaises(AttributeError, lambda: mock.foo) @unittest.skipIf(six.PY3, "no old style classes in Python 3") def test_spec_set_old_style_classes(self): class Foo: bar = 7 mock = Mock(spec_set=Foo) mock.bar = 6 self.assertRaises(AttributeError, lambda: mock.foo) def _set(): mock.foo = 3 self.assertRaises(AttributeError, _set) mock = Mock(spec_set=Foo()) mock.bar = 6 self.assertRaises(AttributeError, lambda: mock.foo) def _set(): mock.foo = 3 self.assertRaises(AttributeError, _set) def test_subclass_with_properties(self): class SubClass(Mock): def _get(self): return 3 def _set(self, value): raise NameError('strange error') some_attribute = property(_get, _set) s = SubClass(spec_set=SubClass) self.assertEqual(s.some_attribute, 3) def test(): s.some_attribute = 3 self.assertRaises(NameError, test) def test(): s.foo = 'bar' self.assertRaises(AttributeError, test) def test_setting_call(self): mock = Mock() def __call__(self, a): return self._mock_call(a) type(mock).__call__ = __call__ mock('one') mock.assert_called_with('one') self.assertRaises(TypeError, mock, 'one', 'two') def test_dir(self): mock = Mock() attrs = set(dir(mock)) type_attrs = set([m for m in dir(Mock) if not m.startswith('_')]) # all public attributes from the type are included self.assertEqual(set(), type_attrs - attrs) # creates these attributes mock.a, mock.b self.assertIn('a', dir(mock)) self.assertIn('b', dir(mock)) # instance attributes mock.c = mock.d = None self.assertIn('c', dir(mock)) self.assertIn('d', dir(mock)) # magic methods mock.__iter__ = lambda s: iter([]) self.assertIn('__iter__', dir(mock)) def test_dir_from_spec(self): mock = Mock(spec=unittest.TestCase) testcase_attrs = set(dir(unittest.TestCase)) attrs = set(dir(mock)) # all attributes from the spec are included self.assertEqual(set(), testcase_attrs - attrs) # shadow a sys attribute mock.version = 3 self.assertEqual(dir(mock).count('version'), 1) def test_filter_dir(self): patcher = patch.object(mock, 'FILTER_DIR', False) patcher.start() try: attrs = set(dir(Mock())) type_attrs = set(dir(Mock)) # ALL attributes from the type are included self.assertEqual(set(), type_attrs - attrs) finally: patcher.stop() def test_configure_mock(self): mock = Mock(foo='bar') self.assertEqual(mock.foo, 'bar') mock = MagicMock(foo='bar') self.assertEqual(mock.foo, 'bar') kwargs = {'side_effect': KeyError, 'foo.bar.return_value': 33, 'foo': MagicMock()} mock = Mock(kwargs) self.assertRaises(KeyError, mock) self.assertEqual(mock.foo.bar(), 33) self.assertIsInstance(mock.foo, MagicMock) mock = Mock() mock.configure_mock(kwargs) self.assertRaises(KeyError, mock) self.assertEqual(mock.foo.bar(), 33) self.assertIsInstance(mock.foo, MagicMock) def assertRaisesWithMsg(self, exception, message, func, args, kwargs): # needed because assertRaisesRegex doesn't work easily with newlines try: func(args, kwargs) except: instance = sys.exc_info()[1] self.assertIsInstance(instance, exception) else: self.fail('Exception %r not raised' % (exception,)) msg = str(instance) self.assertEqual(msg, message) def test_assert_called_with_failure_message(self): mock = NonCallableMock() expected = "mock(1, '2', 3, bar='foo')" message = 'Expected call: %s\nNot called' self.assertRaisesWithMsg( AssertionError, message % (expected,), mock.assert_called_with, 1, '2', 3, bar='foo' ) mock.foo(1, '2', 3, foo='foo') asserters = [ mock.foo.assert_called_with, mock.foo.assert_called_once_with ] for meth in asserters: actual = "foo(1, '2', 3, foo='foo')" expected = "foo(1, '2', 3, bar='foo')" message = 'Expected call: %s\nActual call: %s' self.assertRaisesWithMsg( AssertionError, message % (expected, actual), meth, 1, '2', 3, bar='foo' ) # just kwargs for meth in asserters: actual = "foo(1, '2', 3, foo='foo')" expected = "foo(bar='foo')" message = 'Expected call: %s\nActual call: %s' self.assertRaisesWithMsg( AssertionError, message % (expected, actual), meth, bar='foo' ) # just args for meth in asserters: actual = "foo(1, '2', 3, foo='foo')" expected = "foo(1, 2, 3)" message = 'Expected call: %s\nActual call: %s' self.assertRaisesWithMsg( AssertionError, message % (expected, actual), meth, 1, 2, 3 ) # empty for meth in asserters: actual = "foo(1, '2', 3, foo='foo')" expected = "foo()" message = 'Expected call: %s\nActual call: %s' self.assertRaisesWithMsg( AssertionError, message % (expected, actual), meth ) def test_mock_calls(self): mock = MagicMock() # need to do this because MagicMock.mock_calls used to just return # a MagicMock which also returned a MagicMock when __eq__ was called self.assertIs(mock.mock_calls == [], True) mock = MagicMock() mock() expected = [('', (), {})] self.assertEqual(mock.mock_calls, expected) mock.foo() expected.append(call.foo()) self.assertEqual(mock.mock_calls, expected) # intermediate mock_calls work too self.assertEqual(mock.foo.mock_calls, [('', (), {})]) mock = MagicMock() mock().foo(1, 2, 3, a=4, b=5) expected = [ ('', (), {}), ('().foo', (1, 2, 3), dict(a=4, b=5)) ] self.assertEqual(mock.mock_calls, expected) self.assertEqual(mock.return_value.foo.mock_calls, [('', (1, 2, 3), dict(a=4, b=5))]) self.assertEqual(mock.return_value.mock_calls, [('foo', (1, 2, 3), dict(a=4, b=5))]) mock = MagicMock() mock().foo.bar().baz() expected = [ ('', (), {}), ('().foo.bar', (), {}), ('().foo.bar().baz', (), {}) ] self.assertEqual(mock.mock_calls, expected) self.assertEqual(mock().mock_calls, call.foo.bar().baz().call_list()) for kwargs in dict(), dict(name='bar'): mock = MagicMock(kwargs) int(mock.foo) expected = [('foo.__int__', (), {})] self.assertEqual(mock.mock_calls, expected) mock = MagicMock(kwargs) mock.a()() expected = [('a', (), {}), ('a()', (), {})] self.assertEqual(mock.mock_calls, expected) self.assertEqual(mock.a().mock_calls, [call()]) mock = MagicMock(kwargs) mock(1)(2)(3) self.assertEqual(mock.mock_calls, call(1)(2)(3).call_list()) self.assertEqual(mock().mock_calls, call(2)(3).call_list()) self.assertEqual(mock()().mock_calls, call(3).call_list()) mock = MagicMock(kwargs) mock(1)(2)(3).a.b.c(4) self.assertEqual(mock.mock_calls, call(1)(2)(3).a.b.c(4).call_list()) self.assertEqual(mock().mock_calls, call(2)(3).a.b.c(4).call_list()) self.assertEqual(mock()().mock_calls, call(3).a.b.c(4).call_list()) mock = MagicMock(kwargs) int(mock().foo.bar().baz()) last_call = ('().foo.bar().baz().__int__', (), {}) self.assertEqual(mock.mock_calls[-1], last_call) self.assertEqual(mock().mock_calls, call.foo.bar().baz().__int__().call_list()) self.assertEqual(mock().foo.bar().mock_calls, call.baz().__int__().call_list()) self.assertEqual(mock().foo.bar().baz.mock_calls, call().__int__().call_list()) def test_subclassing(self): class Subclass(Mock): pass mock = Subclass() self.assertIsInstance(mock.foo, Subclass) self.assertIsInstance(mock(), Subclass) class Subclass(Mock): def _get_child_mock(self, kwargs): return Mock(kwargs) mock = Subclass() self.assertNotIsInstance(mock.foo, Subclass) self.assertNotIsInstance(mock(), Subclass) def test_arg_lists(self): mocks = [ Mock(), MagicMock(), NonCallableMock(), NonCallableMagicMock() ] def assert_attrs(mock): names = 'call_args_list', 'method_calls', 'mock_calls' for name in names: attr = getattr(mock, name) self.assertIsInstance(attr, _CallList) self.assertIsInstance(attr, list) self.assertEqual(attr, []) for mock in mocks: assert_attrs(mock) if callable(mock): mock() mock(1, 2) mock(a=3) mock.reset_mock() assert_attrs(mock) mock.foo() mock.foo.bar(1, a=3) mock.foo(1).bar().baz(3) mock.reset_mock() assert_attrs(mock) def test_call_args_two_tuple(self): mock = Mock() mock(1, a=3) mock(2, b=4) self.assertEqual(len(mock.call_args), 2) args, kwargs = mock.call_args self.assertEqual(args, (2,)) self.assertEqual(kwargs, dict(b=4)) expected_list = [((1,), dict(a=3)), ((2,), dict(b=4))] for expected, call_args in zip(expected_list, mock.call_args_list): self.assertEqual(len(call_args), 2) self.assertEqual(expected[0], call_args[0]) self.assertEqual(expected[1], call_args[1]) def test_side_effect_iterator(self): mock = Mock(side_effect=iter([1, 2, 3])) self.assertEqual([mock(), mock(), mock()], [1, 2, 3]) self.assertRaises(StopIteration, mock) mock = MagicMock(side_effect=['a', 'b', 'c']) self.assertEqual([mock(), mock(), mock()], ['a', 'b', 'c']) self.assertRaises(StopIteration, mock) mock = Mock(side_effect='ghi') self.assertEqual([mock(), mock(), mock()], ['g', 'h', 'i']) self.assertRaises(StopIteration, mock) class Foo(object): pass mock = MagicMock(side_effect=Foo) self.assertIsInstance(mock(), Foo) mock = Mock(side_effect=Iter()) self.assertEqual([mock(), mock(), mock(), mock()], ['this', 'is', 'an', 'iter']) self.assertRaises(StopIteration, mock) def test_side_effect_setting_iterator(self): mock = Mock() mock.side_effect = iter([1, 2, 3]) self.assertEqual([mock(), mock(), mock()], [1, 2, 3]) self.assertRaises(StopIteration, mock) side_effect = mock.side_effect self.assertIsInstance(side_effect, type(iter([]))) mock.side_effect = ['a', 'b', 'c'] self.assertEqual([mock(), mock(), mock()], ['a', 'b', 'c']) self.assertRaises(StopIteration, mock) side_effect = mock.side_effect self.assertIsInstance(side_effect, type(iter([]))) this_iter = Iter() mock.side_effect = this_iter self.assertEqual([mock(), mock(), mock(), mock()], ['this', 'is', 'an', 'iter']) self.assertRaises(StopIteration, mock) self.assertIs(mock.side_effect, this_iter) def test_side_effect_iterator_exceptions(self): for Klass in Mock, MagicMock: iterable = (ValueError, 3, KeyError, 6) m = Klass(side_effect=iterable) self.assertRaises(ValueError, m) self.assertEqual(m(), 3) self.assertRaises(KeyError, m) self.assertEqual(m(), 6) def test_side_effect_iterator_default(self): mock = Mock(return_value=2) mock.side_effect = iter([1, DEFAULT]) self.assertEqual([mock(), mock()], [1, 2]) def test_assert_has_calls_any_order(self): mock = Mock() mock(1, 2) mock(a=3) mock(3, 4) mock(b=6) mock(b=6) kalls = [ call(1, 2), ({'a': 3},), ((3, 4),), ((), {'a': 3}), ('', (1, 2)), ('', {'a': 3}), ('', (1, 2), {}), ('', (), {'a': 3}) ] for kall in kalls: mock.assert_has_calls([kall], any_order=True) for kall in call(1, '2'), call(b=3), call(), 3, None, 'foo': self.assertRaises( AssertionError, mock.assert_has_calls, [kall], any_order=True ) kall_lists = [ [call(1, 2), call(b=6)], [call(3, 4), call(1, 2)], [call(b=6), call(b=6)], ] for kall_list in kall_lists: mock.assert_has_calls(kall_list, any_order=True) kall_lists = [ [call(b=6), call(b=6), call(b=6)], [call(1, 2), call(1, 2)], [call(3, 4), call(1, 2), call(5, 7)], [call(b=6), call(3, 4), call(b=6), call(1, 2), call(b=6)], ] for kall_list in kall_lists: self.assertRaises( AssertionError, mock.assert_has_calls, kall_list, any_order=True ) def test_assert_has_calls(self): kalls1 = [ call(1, 2), ({'a': 3},), ((3, 4),), call(b=6), ('', (1,), {'b': 6}), ] kalls2 = [call.foo(), call.bar(1)] kalls2.extend(call.spam().baz(a=3).call_list()) kalls2.extend(call.bam(set(), foo={}).fish([1]).call_list()) mocks = [] for mock in Mock(), MagicMock(): mock(1, 2) mock(a=3) mock(3, 4) mock(b=6) mock(1, b=6) mocks.append((mock, kalls1)) mock = Mock() mock.foo() mock.bar(1) mock.spam().baz(a=3) mock.bam(set(), foo={}).fish([1]) mocks.append((mock, kalls2)) for mock, kalls in mocks: for i in range(len(kalls)): for step in 1, 2, 3: these = kalls[i:i+step] mock.assert_has_calls(these) if len(these) > 1: self.assertRaises( AssertionError, mock.assert_has_calls, list(reversed(these)) ) def test_assert_has_calls_with_function_spec(self): def f(a, b, c, d=None): pass mock = Mock(spec=f) mock(1, b=2, c=3) mock(4, 5, c=6, d=7) mock(10, 11, c=12) calls = [ ('', (1, 2, 3), {}), ('', (4, 5, 6), {'d': 7}), ((10, 11, 12), {}), ] mock.assert_has_calls(calls) mock.assert_has_calls(calls, any_order=True) mock.assert_has_calls(calls[1:]) mock.assert_has_calls(calls[1:], any_order=True) mock.assert_has_calls(calls[:-1]) mock.assert_has_calls(calls[:-1], any_order=True) # Reversed order calls = list(reversed(calls)) with self.assertRaises(AssertionError): mock.assert_has_calls(calls) mock.assert_has_calls(calls, any_order=True) with self.assertRaises(AssertionError): mock.assert_has_calls(calls[1:]) mock.assert_has_calls(calls[1:], any_order=True) with self.assertRaises(AssertionError): mock.assert_has_calls(calls[:-1]) mock.assert_has_calls(calls[:-1], any_order=True) def test_assert_any_call(self): mock = Mock() mock(1, 2) mock(a=3) mock(1, b=6) mock.assert_any_call(1, 2) mock.assert_any_call(a=3) mock.assert_any_call(1, b=6) self.assertRaises( AssertionError, mock.assert_any_call ) self.assertRaises( AssertionError, mock.assert_any_call, 1, 3 ) self.assertRaises( AssertionError, mock.assert_any_call, a=4 ) def test_assert_any_call_with_function_spec(self): def f(a, b, c, d=None): pass mock = Mock(spec=f) mock(1, b=2, c=3) mock(4, 5, c=6, d=7) mock.assert_any_call(1, 2, 3) mock.assert_any_call(a=1, b=2, c=3) mock.assert_any_call(4, 5, 6, 7) mock.assert_any_call(a=4, b=5, c=6, d=7) self.assertRaises(AssertionError, mock.assert_any_call, 1, b=3, c=2) # Expected call doesn't match the spec's signature with self.assertRaises(AssertionError) as cm: mock.assert_any_call(e=8) if hasattr(cm.exception, '__cause__'): self.assertIsInstance(cm.exception.__cause__, TypeError) def test_mock_calls_create_autospec(self): def f(a, b): pass obj = Iter() obj.f = f funcs = [ create_autospec(f), create_autospec(obj).f ] for func in funcs: func(1, 2) func(3, 4) self.assertEqual( func.mock_calls, [call(1, 2), call(3, 4)] ) #Issue21222 def test_create_autospec_with_name(self): m = mock.create_autospec(object(), name='sweet_func') self.assertIn('sweet_func', repr(m)) #Issue21238 def test_mock_unsafe(self): m = Mock() with self.assertRaises(AttributeError): m.assert_foo_call() with self.assertRaises(AttributeError): m.assret_foo_call() m = Mock(unsafe=True) m.assert_foo_call() m.assret_foo_call() #Issue21262 def test_assert_not_called(self): m = Mock() m.hello.assert_not_called() m.hello() with self.assertRaises(AssertionError): m.hello.assert_not_called() def test_assert_called(self): m = Mock() with self.assertRaises(AssertionError): m.hello.assert_called() m.hello() m.hello.assert_called() m.hello() m.hello.assert_called() def test_assert_called_once(self): m = Mock() with self.assertRaises(AssertionError): m.hello.assert_called_once() m.hello() m.hello.assert_called_once() m.hello() with self.assertRaises(AssertionError): m.hello.assert_called_once() #Issue21256 printout of keyword args should be in deterministic order def test_sorted_call_signature(self): m = Mock() m.hello(name='hello', daddy='hero') text = "call(daddy='hero', name='hello')" self.assertEqual(repr(m.hello.call_args), text) #Issue21270 overrides tuple methods for mock.call objects def test_override_tuple_methods(self): c = call.count() i = call.index(132,'hello') m = Mock() m.count() m.index(132,"hello") self.assertEqual(m.method_calls[0], c) self.assertEqual(m.method_calls[1], i) def test_mock_add_spec(self): class _One(object): one = 1 class _Two(object): two = 2 class Anything(object): one = two = three = 'four' klasses = [ Mock, MagicMock, NonCallableMock, NonCallableMagicMock ] for Klass in list(klasses): klasses.append(lambda K=Klass: K(spec=Anything)) klasses.append(lambda K=Klass: K(spec_set=Anything)) for Klass in klasses: for kwargs in dict(), dict(spec_set=True): mock = Klass() #no error mock.one, mock.two, mock.three for One, Two in [(_One, _Two), (['one'], ['two'])]: for kwargs in dict(), dict(spec_set=True): mock.mock_add_spec(One, kwargs) mock.one self.assertRaises( AttributeError, getattr, mock, 'two' ) self.assertRaises( AttributeError, getattr, mock, 'three' ) if 'spec_set' in kwargs: self.assertRaises( AttributeError, setattr, mock, 'three', None ) mock.mock_add_spec(Two, kwargs) self.assertRaises( AttributeError, getattr, mock, 'one' ) mock.two self.assertRaises( AttributeError, getattr, mock, 'three' ) if 'spec_set' in kwargs: self.assertRaises( AttributeError, setattr, mock, 'three', None ) # note that creating a mock, setting an instance attribute, and # then setting a spec doesn't work. Not the intended use case def test_mock_add_spec_magic_methods(self): for Klass in MagicMock, NonCallableMagicMock: mock = Klass() int(mock) mock.mock_add_spec(object) self.assertRaises(TypeError, int, mock) mock = Klass() mock['foo'] mock.__int__.return_value =4 mock.mock_add_spec(int) self.assertEqual(int(mock), 4) self.assertRaises(TypeError, lambda: mock['foo']) def test_adding_child_mock(self): for Klass in NonCallableMock, Mock, MagicMock, NonCallableMagicMock: mock = Klass() mock.foo = Mock() mock.foo() self.assertEqual(mock.method_calls, [call.foo()]) self.assertEqual(mock.mock_calls, [call.foo()]) mock = Klass() mock.bar = Mock(name='name') mock.bar() self.assertEqual(mock.method_calls, []) self.assertEqual(mock.mock_calls, []) # mock with an existing _new_parent but no name mock = Klass() mock.baz = MagicMock()() mock.baz() self.assertEqual(mock.method_calls, []) self.assertEqual(mock.mock_calls, []) def test_adding_return_value_mock(self): for Klass in Mock, MagicMock: mock = Klass() mock.return_value = MagicMock() mock()() self.assertEqual(mock.mock_calls, [call(), call()()]) def test_manager_mock(self): class Foo(object): one = 'one' two = 'two' manager = Mock() p1 = patch.object(Foo, 'one') p2 = patch.object(Foo, 'two') mock_one = p1.start() self.addCleanup(p1.stop) mock_two = p2.start() self.addCleanup(p2.stop) manager.attach_mock(mock_one, 'one') manager.attach_mock(mock_two, 'two') Foo.two() Foo.one() self.assertEqual(manager.mock_calls, [call.two(), call.one()]) def test_magic_methods_mock_calls(self): for Klass in Mock, MagicMock: m = Klass() m.__int__ = Mock(return_value=3) m.__float__ = MagicMock(return_value=3.0) int(m) float(m) self.assertEqual(m.mock_calls, [call.__int__(), call.__float__()]) self.assertEqual(m.method_calls, []) def test_mock_open_reuse_issue_21750(self): mocked_open = mock.mock_open(read_data='data') f1 = mocked_open('a-name') f1_data = f1.read() f2 = mocked_open('another-name') f2_data = f2.read() self.assertEqual(f1_data, f2_data) def test_mock_open_write(self): # Test exception in file writing write() mock_namedtemp = mock.mock_open(mock.MagicMock(name='JLV')) with mock.patch('tempfile.NamedTemporaryFile', mock_namedtemp): mock_filehandle = mock_namedtemp.return_value mock_write = mock_filehandle.write mock_write.side_effect = OSError('Test 2 Error') def attempt(): tempfile.NamedTemporaryFile().write('asd') self.assertRaises(OSError, attempt) def test_mock_open_alter_readline(self): mopen = mock.mock_open(read_data='foo\nbarn') mopen.return_value.readline.side_effect = lambda *args:'abc' first = mopen().readline() second = mopen().readline() self.assertEqual('abc', first) self.assertEqual('abc', second) def test_mock_parents(self): for Klass in Mock, MagicMock: m = Klass() original_repr = repr(m) m.return_value = m self.assertIs(m(), m) self.assertEqual(repr(m), original_repr) m.reset_mock() self.assertIs(m(), m) self.assertEqual(repr(m), original_repr) m = Klass() m.b = m.a self.assertIn("name='mock.a'", repr(m.b)) self.assertIn("name='mock.a'", repr(m.a)) m.reset_mock() self.assertIn("name='mock.a'", repr(m.b)) self.assertIn("name='mock.a'", repr(m.a)) m = Klass() original_repr = repr(m) m.a = m() m.a.return_value = m self.assertEqual(repr(m), original_repr) self.assertEqual(repr(m.a()), original_repr) def test_attach_mock(self): classes = Mock, MagicMock, NonCallableMagicMock, NonCallableMock for Klass in classes: for Klass2 in classes: m = Klass() m2 = Klass2(name='foo') m.attach_mock(m2, 'bar') self.assertIs(m.bar, m2) self.assertIn("name='mock.bar'", repr(m2)) m.bar.baz(1) self.assertEqual(m.mock_calls, [call.bar.baz(1)]) self.assertEqual(m.method_calls, [call.bar.baz(1)]) def test_attach_mock_return_value(self): classes = Mock, MagicMock, NonCallableMagicMock, NonCallableMock for Klass in Mock, MagicMock: for Klass2 in classes: m = Klass() m2 = Klass2(name='foo') m.attach_mock(m2, 'return_value') self.assertIs(m(), m2) self.assertIn("name='mock()'", repr(m2)) m2.foo() self.assertEqual(m.mock_calls, call().foo().call_list()) def test_attribute_deletion(self): for mock in (Mock(), MagicMock(), NonCallableMagicMock(), NonCallableMock()): self.assertTrue(hasattr(mock, 'm')) del mock.m self.assertFalse(hasattr(mock, 'm')) del mock.f self.assertFalse(hasattr(mock, 'f')) self.assertRaises(AttributeError, getattr, mock, 'f') def test_class_assignable(self): for mock in Mock(), MagicMock(): self.assertNotIsInstance(mock, int) mock.__class__ = int self.assertIsInstance(mock, int) mock.foo @unittest.expectedFailure def test_pickle(self): for Klass in (MagicMock, Mock, Subclass, NonCallableMagicMock): mock = Klass(name='foo', attribute=3) mock.foo(1, 2, 3) data = pickle.dumps(mock) new = pickle.loads(data) new.foo.assert_called_once_with(1, 2, 3) self.assertFalse(new.called) self.assertTrue(is_instance(new, Klass)) self.assertIsInstance(new, Thing) self.assertIn('name="foo"', repr(new)) self.assertEqual(new.attribute, 3) if __name__ == '__main__': unittest.main()	49.29 KB	2016-06-08 10:18
📄 testpatch.py # 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 import six import unittest2 as unittest from mock.tests import support from mock.tests.support import SomeClass, is_instance, callable from mock import ( NonCallableMock, CallableMixin, patch, sentinel, MagicMock, Mock, NonCallableMagicMock, patch, DEFAULT, call ) from mock.mock import _patch, _get_target builtin_string = '__builtin__' if six.PY3: builtin_string = 'builtins' unicode = str 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' 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_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): try: @patch('%s.frooble' % builtin_string, sentinel.Frooble) def test(): self.assertEqual(frooble, sentinel.Frooble) test() except AttributeError: pass else: self.fail('Patching non existent attributes should fail') self.assertRaises(NameError, lambda: frooble) def test_patchobject_wont_create_by_default(self): try: @patch.object(SomeClass, 'ord', sentinel.Frooble) def test(): self.fail('Patching non existent attributes should fail') test() except AttributeError: pass else: self.fail('Patching non existent attributes should fail') 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): 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_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() @unittest.expectedFailure def test_patch_descriptor(self): # would be some effort to fix this - we could special case the # builtin descriptors: classmethod, property, staticmethod 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_set=SomeClass) def test(MockClass): MockClass.z = 'foo' self.assertRaises(AttributeError, test) @patch.object(support, 'SomeClass', spec_set=SomeClass) 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(1) function.assert_called_with(1) 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): for base in (str, unicode): Foo = type('Foo', (base,), {'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('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('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): p = patch('mock.tests.support', autospec=True) m = p.start() try: self.assertIn(" name='support.SomeClass.wibble()'", repr(m.SomeClass.wibble())) self.assertIn(" name='support.SomeClass().wibble()'", repr(m.SomeClass().wibble())) finally: p.stop() 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_wrapped_patch(self): decorated = patch('sys.modules')(function) self.assertIs(decorated.__wrapped__, function) def test_wrapped_several_times_patch(self): decorated = patch('sys.modules')(function) decorated = patch('sys.modules')(decorated) self.assertIs(decorated.__wrapped__, function) def test_wrapped_patch_object(self): decorated = patch.object(sys, 'modules')(function) self.assertIs(decorated.__wrapped__, function) def test_wrapped_patch_dict(self): decorated = patch.dict('sys.modules')(function) self.assertIs(decorated.__wrapped__, function) def test_wrapped_patch_multiple(self): decorated = patch.multiple('sys', modules={})(function) self.assertIs(decorated.__wrapped__, function) 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__, __name__) if hasattr(self.test_special_attrs, '__annotations__'): with patch.object(foo, '__annotations__', dict([('s', 1, )])): self.assertEqual(foo.__annotations__, dict([('s', 1, )])) self.assertEqual(foo.__annotations__, dict()) if hasattr(self.test_special_attrs, '__kwdefaults__'): foo = eval("lambda a, x=0: x") with patch.object(foo, '__kwdefaults__', dict([('x', 1, )])): self.assertEqual(foo(), 1) self.assertEqual(foo(), 0) if __name__ == '__main__': unittest.main()	55.03 KB	2016-06-08 10:18
📄 testsentinel.py # 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 unittest2 as unittest from mock import sentinel, DEFAULT class SentinelTest(unittest.TestCase): def testSentinels(self): self.assertEqual(sentinel.whatever, sentinel.whatever, 'sentinel not stored') self.assertNotEqual(sentinel.whatever, sentinel.whateverelse, 'sentinel should be unique') def testSentinelName(self): self.assertEqual(str(sentinel.whatever), 'sentinel.whatever', 'sentinel name incorrect') def testDEFAULT(self): self.assertIs(DEFAULT, sentinel.DEFAULT) def testBases(self): # If this doesn't raise an AttributeError then help(mock) is broken self.assertRaises(AttributeError, lambda: sentinel.__bases__) if __name__ == '__main__': unittest.main()	976 B	2016-06-08 10:18
📄 testwith.py # 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/ from warnings import catch_warnings import unittest2 as unittest from mock.tests.support import is_instance from mock import MagicMock, Mock, patch, sentinel, mock_open, call something = sentinel.Something something_else = sentinel.SomethingElse class WithTest(unittest.TestCase): def test_with_statement(self): with patch('%s.something' % __name__, sentinel.Something2): self.assertEqual(something, sentinel.Something2, "unpatched") self.assertEqual(something, sentinel.Something) def test_with_statement_exception(self): try: with patch('%s.something' % __name__, sentinel.Something2): self.assertEqual(something, sentinel.Something2, "unpatched") raise Exception('pow') except Exception: pass else: self.fail("patch swallowed exception") self.assertEqual(something, sentinel.Something) def test_with_statement_as(self): with patch('%s.something' % __name__) as mock_something: self.assertEqual(something, mock_something, "unpatched") self.assertTrue(is_instance(mock_something, MagicMock), "patching wrong type") self.assertEqual(something, sentinel.Something) def test_patch_object_with_statement(self): class Foo(object): something = 'foo' original = Foo.something with patch.object(Foo, 'something'): self.assertNotEqual(Foo.something, original, "unpatched") self.assertEqual(Foo.something, original) def test_with_statement_nested(self): with catch_warnings(record=True): with patch('%s.something' % __name__) as mock_something: with patch('%s.something_else' % __name__) as mock_something_else: self.assertEqual(something, mock_something, "unpatched") self.assertEqual(something_else, mock_something_else, "unpatched") self.assertEqual(something, sentinel.Something) self.assertEqual(something_else, sentinel.SomethingElse) def test_with_statement_specified(self): with patch('%s.something' % __name__, sentinel.Patched) as mock_something: self.assertEqual(something, mock_something, "unpatched") self.assertEqual(mock_something, sentinel.Patched, "wrong patch") self.assertEqual(something, sentinel.Something) def testContextManagerMocking(self): mock = Mock() mock.__enter__ = Mock() mock.__exit__ = Mock() mock.__exit__.return_value = False with mock as m: self.assertEqual(m, mock.__enter__.return_value) mock.__enter__.assert_called_with() mock.__exit__.assert_called_with(None, None, None) def test_context_manager_with_magic_mock(self): mock = MagicMock() with self.assertRaises(TypeError): with mock: 'foo' + 3 mock.__enter__.assert_called_with() self.assertTrue(mock.__exit__.called) def test_with_statement_same_attribute(self): with patch('%s.something' % __name__, sentinel.Patched) as mock_something: self.assertEqual(something, mock_something, "unpatched") with patch('%s.something' % __name__) as mock_again: self.assertEqual(something, mock_again, "unpatched") self.assertEqual(something, mock_something, "restored with wrong instance") self.assertEqual(something, sentinel.Something, "not restored") def test_with_statement_imbricated(self): with patch('%s.something' % __name__) as mock_something: self.assertEqual(something, mock_something, "unpatched") with patch('%s.something_else' % __name__) as mock_something_else: self.assertEqual(something_else, mock_something_else, "unpatched") self.assertEqual(something, sentinel.Something) self.assertEqual(something_else, sentinel.SomethingElse) def test_dict_context_manager(self): foo = {} with patch.dict(foo, {'a': 'b'}): self.assertEqual(foo, {'a': 'b'}) self.assertEqual(foo, {}) with self.assertRaises(NameError): with patch.dict(foo, {'a': 'b'}): self.assertEqual(foo, {'a': 'b'}) raise NameError('Konrad') self.assertEqual(foo, {}) class TestMockOpen(unittest.TestCase): def test_mock_open(self): mock = mock_open() with patch('%s.open' % __name__, mock, create=True) as patched: self.assertIs(patched, mock) open('foo') mock.assert_called_once_with('foo') def test_mock_open_context_manager(self): mock = mock_open() handle = mock.return_value with patch('%s.open' % __name__, mock, create=True): with open('foo') as f: f.read() expected_calls = [call('foo'), call().__enter__(), call().read(), call().__exit__(None, None, None)] self.assertEqual(mock.mock_calls, expected_calls) self.assertIs(f, handle) def test_mock_open_context_manager_multiple_times(self): mock = mock_open() with patch('%s.open' % __name__, mock, create=True): with open('foo') as f: f.read() with open('bar') as f: f.read() expected_calls = [ call('foo'), call().__enter__(), call().read(), call().__exit__(None, None, None), call('bar'), call().__enter__(), call().read(), call().__exit__(None, None, None)] self.assertEqual(mock.mock_calls, expected_calls) def test_explicit_mock(self): mock = MagicMock() mock_open(mock) with patch('%s.open' % __name__, mock, create=True) as patched: self.assertIs(patched, mock) open('foo') mock.assert_called_once_with('foo') def test_read_data(self): mock = mock_open(read_data='foo') with patch('%s.open' % __name__, mock, create=True): h = open('bar') result = h.read() self.assertEqual(result, 'foo') def test_readline_data(self): # Check that readline will return all the lines from the fake file mock = mock_open(read_data='foo\nbar\nbaz\n') with patch('%s.open' % __name__, mock, create=True): h = open('bar') line1 = h.readline() line2 = h.readline() line3 = h.readline() self.assertEqual(line1, 'foo\n') self.assertEqual(line2, 'bar\n') self.assertEqual(line3, 'baz\n') # Check that we properly emulate a file that doesn't end in a newline mock = mock_open(read_data='foo') with patch('%s.open' % __name__, mock, create=True): h = open('bar') result = h.readline() self.assertEqual(result, 'foo') def test_readlines_data(self): # Test that emulating a file that ends in a newline character works mock = mock_open(read_data='foo\nbar\nbaz\n') with patch('%s.open' % __name__, mock, create=True): h = open('bar') result = h.readlines() self.assertEqual(result, ['foo\n', 'bar\n', 'baz\n']) # Test that files without a final newline will also be correctly # emulated mock = mock_open(read_data='foo\nbar\nbaz') with patch('%s.open' % __name__, mock, create=True): h = open('bar') result = h.readlines() self.assertEqual(result, ['foo\n', 'bar\n', 'baz']) def test_read_bytes(self): mock = mock_open(read_data=b'\xc6') with patch('%s.open' % __name__, mock, create=True): with open('abc', 'rb') as f: result = f.read() self.assertEqual(result, b'\xc6') def test_readline_bytes(self): m = mock_open(read_data=b'abc\ndef\nghi\n') with patch('%s.open' % __name__, m, create=True): with open('abc', 'rb') as f: line1 = f.readline() line2 = f.readline() line3 = f.readline() self.assertEqual(line1, b'abc\n') self.assertEqual(line2, b'def\n') self.assertEqual(line3, b'ghi\n') def test_readlines_bytes(self): m = mock_open(read_data=b'abc\ndef\nghi\n') with patch('%s.open' % __name__, m, create=True): with open('abc', 'rb') as f: result = f.readlines() self.assertEqual(result, [b'abc\n', b'def\n', b'ghi\n']) def test_mock_open_read_with_argument(self): # At one point calling read with an argument was broken # for mocks returned by mock_open some_data = 'foo\nbar\nbaz' mock = mock_open(read_data=some_data) self.assertEqual(mock().read(10), some_data) def test_interleaved_reads(self): # Test that calling read, readline, and readlines pulls data # sequentially from the data we preload with mock = mock_open(read_data='foo\nbar\nbaz\n') with patch('%s.open' % __name__, mock, create=True): h = open('bar') line1 = h.readline() rest = h.readlines() self.assertEqual(line1, 'foo\n') self.assertEqual(rest, ['bar\n', 'baz\n']) mock = mock_open(read_data='foo\nbar\nbaz\n') with patch('%s.open' % __name__, mock, create=True): h = open('bar') line1 = h.readline() rest = h.read() self.assertEqual(line1, 'foo\n') self.assertEqual(rest, 'bar\nbaz\n') def test_overriding_return_values(self): mock = mock_open(read_data='foo') handle = mock() handle.read.return_value = 'bar' handle.readline.return_value = 'bar' handle.readlines.return_value = ['bar'] self.assertEqual(handle.read(), 'bar') self.assertEqual(handle.readline(), 'bar') self.assertEqual(handle.readlines(), ['bar']) # call repeatedly to check that a StopIteration is not propagated self.assertEqual(handle.readline(), 'bar') self.assertEqual(handle.readline(), 'bar') if __name__ == '__main__': unittest.main()	10.34 KB	2016-06-08 10:18

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