Function test_enum_no_default

tests/test_traitlets.py:2603–2617

()

def test_enum_no_default():
    class C(HasTraits):
        t = Enum(["a", "b"])

    c = C()
    c.t = "a"
    assert c.t == "a"

    c = C()

    with pytest.raises(TraitError):
        t = c.t

    c = C(t="b")
    assert c.t == "b"


def test_default_value_repr():