diff --git a/datagateway_api/common/backends.py b/datagateway_api/common/backends.py
index 1cb92aa0..84993b5f 100644
--- a/datagateway_api/common/backends.py
+++ b/datagateway_api/common/backends.py
@@ -24,7 +24,6 @@ def create_backend(backend_type):
     elif backend_type == "python_icat":
         backend = PythonICATBackend()
     else:
-        # Might turn to a warning so the abstract class can be tested?
         sys.exit(f"Invalid config value '{backend_type}' for config option backend")
 
     return backend
diff --git a/test/test_backends.py b/test/test_backends.py
index dc79e7c9..358ada68 100644
--- a/test/test_backends.py
+++ b/test/test_backends.py
@@ -20,7 +20,9 @@ def test_backend_creation(self, backend_name, backend_type):
         assert type(test_backend) == backend_type
 
     def test_abstract_class(self):
-        """Test the `Backend` abstract class has all the required classes for the API"""
+        """
+        Test the `Backend` abstract class has all required abstract methods for the API
+        """
         Backend.__abstractmethods__ = set()
 
         class DummyBackend(Backend):