Add tests to repositories base

app/repositories/tests/test_base.py

@@ -0,0 +1,14 @@
+from app.repositories.models import Character
+
+
+class TestBase:
+    character = Character(id=1)
+
+    def test_to_dict_should_return_dict_with_id_when_id_provided(self):
+        assert self.character.to_dict() == {"id": 1}
+
+    def test_to_dict_should_return_empty_dict_when_id_provided_and_id_excluded(self):
+        assert self.character.to_dict(exclude=["id"]) == {}
+
+    def test_to_dict_should_not_return__sa_instance_state_in_dict_when_requested(self):
+        assert "_sa_instance_state" not in self.character.to_dict()