def validate(self, request):
validated_data = request
for validator in self.validators:
validation_result = validator(
request=validated_data, dependencies=get_attribute_dependencies(self)
)
# validator is eligible to alter input data for the decorated function
# but doesnt have to; if it returns no result, his input will be used
validated_data = validated_data if validation_result is None else validation_result
return validated_data
def test_interactor_error_not_caught(self, interactor, request_data,
validators, teams):
error_instance = ValueError()
teams.find.side_effect = error_instance
with pytest.raises(ValueError):
interactor(request_data)
dependencies = get_attribute_dependencies(interactor)
validators[0].assert_called_once_with(request=request_data,
dependencies=dependencies)
validators[1].assert_called_once_with(request=request_data,
dependencies=dependencies)
teams.find.assert_called_once_with(request_data['team_id'])
interactor.error_handler.assert_not_called()
def test_late_validation_error_caught(self, interactor, request_data,
error_result, validators):
error_instance = LogicError('foo')
validators[1].side_effect = error_instance
response = interactor(request_data)
dependencies = get_attribute_dependencies(interactor)
assert response == error_result
validators[0].assert_called_once_with(request=request_data,
dependencies=dependencies)
validators[1].assert_called_once_with(request=request_data,
dependencies=dependencies)
interactor.error_handler.assert_called_once_with(error=error_instance,
request=request_data)
def test_multiple_error_class(self, interactor, request_data, validators,
error_result, teams):
error_instance = ValueError()
interactor.error_class = (LogicError, ValueError)
teams.find.side_effect = error_instance
response = interactor(request_data)
dependencies = get_attribute_dependencies(interactor)
assert response == error_result
validators[0].assert_called_once_with(request=request_data,
dependencies=dependencies)
validators[1].assert_called_once_with(request=request_data,
dependencies=dependencies)
teams.find.assert_called_once_with(request_data['team_id'])
interactor.error_handler.assert_called_once_with(error=error_instance,
request=request_data)
def test_get_dependencies_no_description(self):
# instance is an non-DI-aware object
instance = object()
assert get_attribute_dependencies(instance) == {}
def test_get_dependencies_successful(self, instance):
dependencies = get_attribute_dependencies(instance)
assert {k: v.name
for k, v in dependencies.items()} == instance.components