def test_prepare_value(self):
field = JSONField()
self.assertEqual(field.prepare_value({"a": "b"}), '{"a": "b"}')
self.assertEqual(field.prepare_value(None), "null")
self.assertEqual(field.prepare_value("foo"), '"foo"')
self.assertEqual(field.prepare_value("你好，世界"), '"你好，世界"')
self.assertEqual(field.prepare_value({"a": "😀🐱"}), '{"a": "😀🐱"}')
self.assertEqual(field.prepare_value(["你好，世界", "jaźń"]),
'["你好，世界", "jaźń"]')
def test_custom_encoder_decoder(self):
class CustomDecoder(json.JSONDecoder):
def __init__(self, object_hook=None, *args, **kwargs):
return super().__init__(object_hook=self.as_uuid,
*args,
**kwargs)
def as_uuid(self, dct):
if "uuid" in dct:
dct["uuid"] = uuid.UUID(dct["uuid"])
return dct
value = {"uuid": uuid.UUID("{c141e152-6550-4172-a784-05448d98204b}")}
encoded_value = '{"uuid": "c141e152-6550-4172-a784-05448d98204b"}'
field = JSONField(encoder=DjangoJSONEncoder, decoder=CustomDecoder)
self.assertEqual(field.prepare_value(value), encoded_value)
self.assertEqual(field.clean(encoded_value), value)
def test_prepare_value(self):
field = JSONField()
self.assertEqual(field.prepare_value({"a": "b"}), '{"a": "b"}')
self.assertEqual(field.prepare_value(None), "null")
self.assertEqual(field.prepare_value("foo"), '"foo"')