def test_fails_when_called_once(self): subject = InstanceDouble('doubles.testing.User') expect(subject).instance_method.twice() subject.instance_method() with raises(MockExpectationError) as e: verify() teardown() assert re.match( r"Expected 'instance_method' to be called 2 times instead of 1 time on " r"<InstanceDouble of <class 'doubles.testing.User'> object at .+> " r"with any args, but was not." r" \(.*doubles/test/expect_test.py:\d+\)", str(e.value))
def test_raises_if_an_expected_method_call_with_args_is_not_made(self): subject = InstanceDouble('doubles.testing.User') expect(subject).method_with_varargs.with_args('bar') with raises(MockExpectationError) as e: verify() teardown() assert re.match( r"Expected 'method_with_varargs' to be called on " r"<InstanceDouble of <class '?doubles.testing.User'?" r"(?: at 0x[0-9a-f]{9})?> object at .+> " r"with \('bar'\), but was not." r" \(.*doubles/test/expect_test.py:\d+\)", str(e.value))
def test_fails_when_called_more_than_at_most_times(self): subject = InstanceDouble('doubles.testing.User') expect(subject).instance_method.at_most(1).times subject.instance_method() with raises(MockExpectationError) as e: subject.instance_method() teardown() assert re.match( r"Expected 'instance_method' to be called at most 1 time instead of 2 times on " r"<InstanceDouble of <class 'doubles.testing.User'> object at .+> " r"with any args, but was not." r" \(.*doubles/test/expect_test.py:\d+\)", str(e.value))
def test_raises_if_arguments_were_specified_but_wrong_kwarg_used_when_called( self): subject = InstanceDouble('doubles.testing.User') allow(subject).method_with_default_args.with_args('one', bar='two') with raises(UnallowedMethodCallError) as e: subject.method_with_default_args('one', bob='barker') assert re.match( r"Received unexpected call to 'method_with_default_args' on " r"<InstanceDouble of <class '?doubles.testing.User'?" r"(?: at 0x[0-9a-f]{9})?> object at .+>\." r" The supplied arguments \('one', bob='barker'\)" r" do not match any available allowances.", str(e.value))
def test_fails_when_called_two_times(self): subject = InstanceDouble('doubles.testing.User') allow(subject).instance_method.once() subject.instance_method() with raises(MockExpectationError) as e: subject.instance_method() teardown() assert re.match( r"Allowed 'instance_method' to be called 1 time instead of 2 times on " r"<InstanceDouble of <class 'doubles.testing.User'> object at .+> " r"with any args, but was not." r" \(.*doubles/test/allow_test.py:\d+\)", str(e.value))
def test_unsatisfied_expectation(self): subject = InstanceDouble('doubles.testing.User') expect(subject).__exit__.once() with raises(MockExpectationError) as e: verify() teardown() assert re.match( r"Expected '__exit__' to be called 1 time instead of 0 times on " r"<InstanceDouble of <class 'doubles.testing.User'> object at .+> " r"with any args, but was not." r" \(.*doubles/test/expect_test.py:\d+\)", str(e.value) )
def test_with_args_validator_not_called(self): subject = InstanceDouble('doubles.testing.User') def arg_matcher(*args): return True expect(subject).method_with_varargs.with_args_validator(arg_matcher) with raises(MockExpectationError) as e: verify() teardown() assert re.match( r"Expected 'method_with_varargs' to be called on " r"<InstanceDouble of <class '?doubles.testing.User'?" r"(?: at 0x[0-9a-f]{9})?> object at .+> " r"with custom matcher: 'arg_matcher', but was not." r" \(.*doubles/test/expect_test.py:\d+\)", str(e.value))
def test_proxies_can_be_inspected(self): subject = InstanceDouble("doubles.testing.User") allow(subject).instance_method parameters = inspect.signature(subject.instance_method).parameters assert len(parameters) == 1
def test__call__is_short_hand_for_with_args(self): subject = InstanceDouble('doubles.testing.User') allow(subject).method_with_positional_arguments('Bob').and_return( 'Barker') assert subject.method_with_positional_arguments('Bob') == 'Barker'
def test_objects_with_custom__eq__method_two(self): subject = InstanceDouble('doubles.testing.User') allow(subject).method_with_positional_arguments.with_args( AlwaysEquals()) subject.method_with_positional_arguments(NeverEquals())
def test_proxies_name(self): subject = InstanceDouble('doubles.testing.User') allow(subject).method_with_doc assert subject.method_with_doc.__name__ == "method_with_doc"
def test_passes_if_method_is_called_with_specified_arguments(self): subject = InstanceDouble('doubles.testing.User') expect(subject).method_with_default_args.with_args('one', bar='two') assert subject.method_with_default_args('one', bar='two') is None
def test_returns_specified_value(self, stubber): subject = InstanceDouble('doubles.testing.User') stubber(subject).instance_method.and_return('bar') assert subject.instance_method() == 'bar'
def test_passes_when_called_less_than_at_most_times(self): subject = InstanceDouble('doubles.testing.User') expect(subject).instance_method.at_most(2).times subject.instance_method()
def test_allows_specification_of_arguments(self): subject = InstanceDouble('doubles.testing.User') allow(subject).method_with_positional_arguments.with_args('foo') assert subject.method_with_positional_arguments('foo') is None
def test_passes_when_called_exactly_expected_times(self): subject = InstanceDouble('doubles.testing.User') expect(subject).instance_method.exactly(1).times subject.instance_method()
def test_passes_when_called_once(self): subject = InstanceDouble('doubles.testing.User') expect(subject).instance_method.once() subject.instance_method()
def test_allows_method_calls_on_doubles(self): subject = InstanceDouble('doubles.testing.User') allow(subject).instance_method assert subject.instance_method() is None
def test_chains_with_return_values(self): subject = InstanceDouble('doubles.testing.User') allow(subject).instance_method.with_no_args().and_return('bar') assert subject.instance_method() == 'bar'
def test_allows_call_with_no_arguments(self): subject = InstanceDouble('doubles.testing.User') allow(subject).instance_method.with_no_args() assert subject.instance_method() is None
def test_passes_when_called_never(self): subject = InstanceDouble('doubles.testing.User') expect(subject).instance_method.never()
def test_raises_on_undefined_attribute_access(self): subject = InstanceDouble('doubles.testing.User') with raises(AttributeError): subject.instance_method
def test_calls_are_chainable(self): subject = InstanceDouble('doubles.testing.User') expect(subject).instance_method.at_least(2).times.at_least(1).times subject.instance_method()
def test_raises_if_called_with_args_that_do_not_match_signature(self): subject = InstanceDouble('doubles.testing.User') allow(subject).instance_method with raises(VerifyingDoubleArgumentError): subject.instance_method('bar')
def test_satisfied_expectation(self): subject = InstanceDouble('doubles.testing.User') expect(subject).__call__.once() subject()
def test_called_with_zero(self): subject = InstanceDouble('doubles.testing.User') allow(subject).instance_method.at_most(0).times
def test_passes_if_an_expected_method_call_is_made(self): subject = InstanceDouble('doubles.testing.User') expect(subject).instance_method subject.instance_method()
def test_passes_when_called_exactly_at_most_times(self): subject = InstanceDouble('doubles.testing.User') allow(subject).instance_method.at_most(1).times subject.instance_method()
def runTest(self): subject = InstanceDouble('doubles.testing.User') expect(subject).instance_method
def setup(self): self.subject = InstanceDouble('doubles.testing.User')