def test_attrdel_unset_error() -> None:
obj = SimpleNamespace(foo=42)
with pytest.raises(RuntimeError, match="Catch this!"):
with attrdel(obj, "bar"):
assert not hasattr(obj, "bar")
raise RuntimeError("Catch this!")
assert not hasattr(obj, "bar")
def test_attrdel_not_copied_error() -> None:
x = object()
obj = SimpleNamespace(foo=x)
with pytest.raises(RuntimeError, match="Catch this!"):
with attrdel(obj, "foo"):
assert not hasattr(obj, "foo")
raise RuntimeError("Catch this!")
assert obj.foo is x
def test_attrdel_modified_error() -> None:
obj = SimpleNamespace(foo=42)
with pytest.raises(RuntimeError, match="Catch this!"):
with attrdel(obj, "foo"):
assert not hasattr(obj, "foo")
obj.foo = [3.14]
raise RuntimeError("Catch this!")
assert obj.foo == 42
def test_attrdel_not_copied() -> None:
x = object()
obj = SimpleNamespace(foo=x)
with attrdel(obj, "foo"):
assert not hasattr(obj, "foo")
assert obj.foo is x
def test_attrdel_unset_modified() -> None:
obj = SimpleNamespace(foo=42)
with attrdel(obj, "bar"):
assert not hasattr(obj, "bar")
obj.bar = [3.14]
assert not hasattr(obj, "bar")
def test_attrdel() -> None:
obj = SimpleNamespace(foo=42)
with attrdel(obj, "foo"):
assert not hasattr(obj, "foo")
assert obj.foo == 42
def test_attrdel_unset() -> None:
obj = SimpleNamespace(foo=42)
with attrdel(obj, "bar"):
assert not hasattr(obj, "bar")
assert not hasattr(obj, "bar")
def test_attrdel_modified() -> None:
obj = SimpleNamespace(foo=42)
with attrdel(obj, "foo"):
assert not hasattr(obj, "foo")
obj.foo = [3.14]
assert obj.foo == 42 # type: ignore[comparison-overlap]