Test serialize/deserialize

tests/test_jsonfield.py

@@ -155,6 +155,17 @@ class JSONFieldTest(TestCase):
             pulled = self.json_model.objects.get(id=obj.pk)
             self.assertEqual(obj.json, pulled.json)
 
+    def test_serialize_deserialize(self):
+        self.json_model.objects.create(json={'foo': 'bar'})
+
+        for f in ['python', 'json', 'xml']:
+            with self.subTest(format=f):
+                data = serialize(f, self.json_model.objects.all())
+                instance, = deserialize(f, data)
+
+                # The actual model instance is accessed as `object`.
+                self.assertEqual(instance.object.json, {'foo': 'bar'})
+
     def test_default_parameters(self):
         """Test providing a default value to the model"""
         model = JSONModel()