Better docstring for auth no-op unit test

Author: tisnik

tests/unit/auth/test_noop_with_token.py

@@ -55,7 +55,11 @@ async def test_noop_with_token_auth_dependency_custom_user_id():
 
 
 async def test_noop_with_token_auth_dependency_no_token():
-    """Test the NoopWithTokenAuthDependency class with no token."""
+    """
+    Test that NoopWithTokenAuthDependency raises an HTTPException when no Authorization header is present in the request.
+
+    Asserts that the exception has a status code of 400 and the detail message "No Authorization header found".
+    """
     dependency = NoopWithTokenAuthDependency()
 
     # Create a mock request without token