Benchmarking nested serialization with many objects.

tests/test_serializers_benchmarks.py

@@ -28,10 +28,35 @@ data = {
     'url_field': 'https://overtherainbow.com'
 }
 
+nested_data = {
+    'big_integer_field': 100000,
+    'char_field': 'a',
+    'comma_separated_integer_field': '1,2',
+    'date_field': datetime.now().date(),
+    'datetime_field': datetime.now(),
+    'decimal_field': Decimal('1.5'),
+    'email_field': 'somewhere@overtherainbow.com',
+    'float_field': 0.443,
+    'integer_field': 55,
+    'null_boolean_field': True,
+    'positive_integer_field': 1,
+    'positive_small_integer_field': 1,
+    'slug_field': 'slug-friendly-text',
+    'small_integer_field': 1,
+    'text_field': 'lorem ipsum',
+    'time_field': datetime.now().time(),
+    'url_field': 'https://overtherainbow.com',
+    'fk': data
+}
+
 data_list = [data for _ in range(100)]
 
+data_list_with_nesting = [nested_data for _ in range(100)]
+
 instances_list = [RegularFieldsModel(**data) for _ in range(100)]
 
+instances_with_nesting = [RegularFieldsAndFKModel(fk=nested_instance, **data) for nested_instance in instances_list]
+
 
 class TestSerializer(serializers.ModelSerializer):
     class Meta:
@@ -88,6 +113,13 @@ def test_object_list_serialization():
     assert serializer.data, serializer.errors
 
 
+@mark.bench('serializers.ListSerializer.to_representation', iterations=1000)
+def test_nested_object_list_serialization():
+    serializer = TestSerializer(instance=instances_with_nesting, many=True)
+
+    assert serializer.data, serializer.errors
+
+
 @mark.bench('serializers.ModelSerializer.to_representation', iterations=10000)
 def test_object_serialization_with_partial_update():
     instance = RegularFieldsModel(**data)
@@ -122,6 +154,13 @@ def test_object_list_deserialization():
     assert serializer.is_valid(), serializer.errors
 
 
+@mark.bench('serializers.ListSerializer.to_internal_value', iterations=1000)
+def test_nested_object_list_deserialization():
+    serializer = TestSerializer(data=data_list_with_nesting, many=True)
+
+    assert serializer.is_valid(), serializer.errors
+
+
 @mark.bench('serializers.ModelSerializer.__init__', iterations=10000)
 def test_serializer_initialization():
     TestSerializer(data=data)