Class FixedValue

tests/test_traitlets.py:2011–2016

        """Verify that the validate value is being used"""

        class FixedValue(HasTraits):
            value = Int(0)

            @validate("value")
            def _value_validate(self, proposal):
                return -1

        u = FixedValue(value=2)
        assert u.value == -1