Method test_allow_null

tests/test_fields.py:160–166

If `allow_null=True` then `None` is a valid input.

(self)

        assert exc_info.value.detail == ['This field may not be null.']

    def test_allow_null(self):
        """
        If `allow_null=True` then `None` is a valid input.
        """
        field = serializers.IntegerField(allow_null=True)
        output = field.run_validation(None)
        assert output is None

    def test_disallow_blank(self):
        """