black, add additional tests with combined fields and exclude_fields, add aliases for column names to tests with fields and exclude_fields

tests/test_excluding_subset_of_columns.py

@@ -34,7 +34,7 @@ class Car(ormar.Model):
     name: str = ormar.String(max_length=100)
     year: int = ormar.Integer(nullable=True)
     gearbox_type: str = ormar.String(max_length=20, nullable=True)
-    gears: int = ormar.Integer(nullable=True)
+    gears: int = ormar.Integer(nullable=True, name="gears_number")
     aircon_type: str = ormar.String(max_length=20, nullable=True)
 
 
@@ -79,7 +79,9 @@ async def test_selecting_subset():
 
             all_cars = (
                 await Car.objects.select_related("manufacturer")
-                .exclude_fields(["gearbox_type", "gears", "aircon_type", "year", "company__founded"])
+                .exclude_fields(
+                    ["gearbox_type", "gears", "aircon_type", "year", "company__founded"]
+                )
                 .all()
             )
             for car in all_cars:
@@ -114,6 +116,20 @@ async def test_selecting_subset():
                 assert car.manufacturer.name == "Toyota"
                 assert car.manufacturer.founded == 1937
 
+            all_cars_check2 = (
+                await Car.objects.select_related("manufacturer")
+                .fields(["id", "name", "manufacturer"])
+                .exclude_fields("company__founded")
+                .all()
+            )
+            for car in all_cars_check2:
+                assert all(
+                    getattr(car, x) is None
+                    for x in ["year", "gearbox_type", "gears", "aircon_type"]
+                )
+                assert car.manufacturer.name == "Toyota"
+                assert car.manufacturer.founded is None
+
             with pytest.raises(pydantic.error_wrappers.ValidationError):
                 # cannot exclude mandatory model columns - company__name in this example
                 await Car.objects.select_related("manufacturer").exclude_fields(