def test_dataclass_with_xs_caches_class(self):
json_dataclass_with_xs = '{"xs": [{"x": 1}]}'
_ = DataClassXs.from_json(json_dataclass_with_xs)
# type hints for class and DataClassX cached
assert _get_type_hints_cache._Cache__currsize == 2
# supported generic called for List[DataClassX] and int
assert _is_supported_generic_cache._Cache__currsize == 2
# for the dataclasses
assert _user_overrides_cache._Cache__currsize == 2
# force cache hits
_ = DataClassXs.from_json(json_dataclass_with_xs)
assert _get_type_hints_cache._Cache__currsize == 2
assert _is_supported_generic_cache._Cache__currsize == 2
assert _user_overrides_cache._Cache__currsize == 2
def test_wrong_nested_list_of_dataclasses(self):
try:
_ = DataClassX.from_json('{"a": "incorrect_field"}')
x_error = None
except Exception as e:
x_error = e
assert x_error is not None
try:
_ = DataClassXs.from_json('{"xs": [{"a": "incorrect_field"}]}')
xs_error = None
except Exception as e:
xs_error = e
assert xs_error is not None
assert x_error.__class__ == xs_error.__class__
assert x_error.args == xs_error.args
def test_nested_list_of_dataclasses(self):
assert (DataClassXs.from_json('{"xs": [{"x": 0}, {"x": 1}]}') ==
DataClassXs([DataClassX(0), DataClassX(1)]))