def test_formfield_custom_encoder_decoder(self):
model_field = JSONField(encoder=DjangoJSONEncoder,
decoder=CustomJSONDecoder)
form_field = model_field.formfield()
self.assertIs(form_field.encoder, DjangoJSONEncoder)
self.assertIs(form_field.decoder, CustomJSONDecoder)
def test_formfield(self):
model_field = JSONField()
form_field = model_field.formfield()
self.assertIsInstance(form_field, forms.JSONField)
