Function test_all_attribute

tests/test_traitlets.py:3151–3162

Verify all trait types are added to `traitlets.__all__`

()

def test_all_attribute():
    """Verify all trait types are added to `traitlets.__all__`"""
    names = dir(traitlets)
    for name in names:
        value = getattr(traitlets, name)
        if not name.startswith("_") and isinstance(value, type) and issubclass(value, TraitType):
            if name not in traitlets.__all__:
                raise ValueError(f"{name} not in __all__")

    for name in traitlets.__all__:
        if name not in names:
            raise ValueError(f"{name} should be removed from __all__")