Function test_default_value

tests/test_traitlets.py:1834–1841

(Trait, default_value)

    ((List, []), (Tuple, ()), (Set, set()), (Dict, {}), (Integer, 0), (Unicode, "")),  # noqa: PT007
)
def test_default_value(Trait, default_value):
    class C(HasTraits):
        t = Trait()

    # test default value
    c = C()
    assert type(c.t) is type(default_value)
    assert c.t == default_value


@pytest.mark.parametrize(