diff --git a/src/parsing.rs b/src/parsing.rs
index 73c45e4..4974556 100644
--- a/src/parsing.rs
+++ b/src/parsing.rs
@@ -283,6 +283,7 @@ mod tests {
 	}
 
 	/// Tests to make sure my cursed function works as intended
+	// TODO: use hashmap for input and expected values
 	#[test]
 	fn func_process_test() {
 		test_process_helper("2x", "2*x");