def test_filter_cannot_be_applied_to_non_constant_choices(self):
dummy_choices = DummyChoices()
message = "`filter_by` cannot be applied on non constant choices."
with self.assertRaises(TypeError, msg=message):
ChoiceField(choices={1: "One"},
filter_by=lambda c: c != dummy_choices.c3)
class Serializer(serializers.Serializer):
foo = ChoiceField(choices=dummy_choices,
filter_by=lambda c: c != dummy_choices.c3)
class Serializer(serializers.Serializer):
foo = ChoiceField(choices={1: "One"})
class Serializer(serializers.Serializer):
foo = ChoiceField(choices=dummy_choices)
class Serializer(serializers.Serializer):
foo = ChoiceField(choices=dummy_choices, label_indexed=True)