def test_does_not_allow_attribute_to_not_exist(self):
obj = Namespace()
with assert_raises(AttributeError) as context:
utils.verify_attribute(obj, "number", int)
self.assert_error_message_contains(
context.exception,
["Namespace", "number", "should have"]
)
def test_does_not_allow_attribute_to_be_of_wrong_type(self):
obj = Namespace()
obj.number = "I'm not a number!"
with assert_raises(TypeError) as context:
utils.verify_attribute(obj, "number", int)
self.assert_error_message_contains(
context.exception,
["Namespace", "number", "should be", "instance", "int"]
)
def __init__(self, *args, **kwargs):
super(Node, self).__init__()
verify_attribute(self, "_fields", collections.Iterable)
self.check_modifiers()
if len(args) not in [0, len(self._fields)]:
raise InvalidInitializationError(_invalid_arg_count_err_msg(self))
# Setup from arguments
for field, value in zip(self._fields, args):
setattr(self, field[0], value)
for key, value in kwargs.items():
setattr(self, key, value)
def test_verifies_valid_case(self):
obj = Namespace()
obj.number = 1
# If we see an error, it's a failed test.
utils.verify_attribute(obj, "number", int)
def __init__(self):
super().__init__()
verify_attribute(self, "options", dict)