fix unit tests

Author: WaVEV

tests/model_fields_/models.py

@@ -103,7 +103,7 @@ class Data(EmbeddedModel):
     integer = models.IntegerField(db_column="custom_column")
     auto_now = models.DateTimeField(auto_now=True)
     auto_now_add = models.DateTimeField(auto_now_add=True)
-    json_value = models.JSONField(default=dict)
+    json_value = models.JSONField(default=None)
 
 
 class Address(EmbeddedModel):

tests/model_fields_/test_embedded_model.py

@@ -146,9 +146,6 @@ def test_embedded_with_json_field(self):
                 data=Data(json_value={"field1": i * 5, "field2": {"0": {"value": list(range(i))}}})
             )
             models.append(m)
-
-        all_models = Holder.objects.all()
-
         self.assertCountEqual(
             Holder.objects.filter(data__json_value__field2__0__value__0=0),
             models[1:],
@@ -158,8 +155,7 @@ def test_embedded_with_json_field(self):
             models[2:],
         )
         self.assertCountEqual(Holder.objects.filter(data__json_value__field2__0__value__1=5), [])
-
-        self.assertCountEqual(Holder.objects.filter(data__json_value__field1__lt=100), all_models)
+        self.assertCountEqual(Holder.objects.filter(data__json_value__field1__lt=100), models)
         self.assertCountEqual(Holder.objects.filter(data__json_value__field1__gt=100), [])
         self.assertCountEqual(
             Holder.objects.filter(