def test_generate_shallow_copier_with_no_attributes():
@attr.s(init=True)
class StubModel:
...
old_model = StubModel()
copier = attr_extensions.generate_shallow_copier(StubModel)
new_model = copier(old_model)
assert new_model is not old_model
assert isinstance(new_model, StubModel)
def test_generate_shallow_copier_with_init_only_arguments():
@attr.s(init=True)
class StubModel:
_gfd: int = attr.ib(init=True)
baaaa: str = attr.ib(init=True)
_blambat: bool = attr.ib(init=True)
no: bytes = attr.ib(init=True)
old_model = StubModel(gfd=42, baaaa="sheep", blambat=True, no=b"okokokok")
copier = attr_extensions.generate_shallow_copier(StubModel)
new_model = copier(old_model)
assert new_model is not old_model
assert new_model._gfd is old_model._gfd
assert new_model.baaaa is old_model.baaaa
assert new_model._blambat is old_model._blambat
assert new_model.no is old_model.no
def test_generate_shallow_copier():
@attr.s(init=True)
class StubModel:
_foo: int = attr.ib(init=True)
baaaa: str = attr.ib(init=True)
_blam: bool = attr.ib(init=True)
not_init: int = attr.ib(init=False)
no: bytes = attr.ib(init=True)
old_model = StubModel(foo=42, baaaa="sheep", blam=True, no=b"okokokok")
old_model.not_init = 54234
copier = attr_extensions.generate_shallow_copier(StubModel)
new_model = copier(old_model)
assert new_model is not old_model
assert new_model._foo is old_model._foo
assert new_model.baaaa is old_model.baaaa
assert new_model._blam is old_model._blam
assert new_model.not_init is old_model.not_init
assert new_model.no is old_model.no
def test_generate_shallow_copier_with_only_non_init_attrs():
@attr.define()
class StubModel:
_gfd: int = attr.field(init=False)
baaaa: str = attr.field(init=False)
_blambat: bool = attr.field(init=False)
no: bytes = attr.field(init=False)
old_model = StubModel()
old_model._gfd = 42
old_model.baaaa = "sheep"
old_model._blambat = True
old_model.no = b"okokokok"
copier = attr_extensions.generate_shallow_copier(StubModel)
new_model = copier(old_model)
assert new_model is not old_model
assert new_model._gfd is old_model._gfd
assert new_model.baaaa is old_model.baaaa
assert new_model._blambat is old_model._blambat
assert new_model.no is old_model.no