From 10314a2debc2a670a8cde01836da5fda2a53437e Mon Sep 17 00:00:00 2001
From: Mark <mark@betalupi.com>
Date: Thu, 3 Aug 2023 22:13:45 -0700
Subject: [PATCH] Added a test

---
 src/tests.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/tests.rs b/src/tests.rs
index faddad1..4078fb8 100644
--- a/src/tests.rs
+++ b/src/tests.rs
@@ -203,6 +203,7 @@ fn basic_units() {
 
 	bad_expr("m + s");
 	bad_expr("m ^ s");
+	bad_expr("m - s");
 	//bad_expr("m ^ pi");
 }