Provoke testbench fail to ensure the CI notices errors

src/tests.rs

@@ -1,5 +1,5 @@
 #[cfg(test)]
-use crate::tcl::commands;
+use crate::tcl::{commands, words};
 
 #[test]
 fn test_commands_working() {
@@ -38,3 +38,17 @@ fn test_commands_quotes() {
     assert_eq!(case_2, verify_2);
     assert_eq!(case_3, verify_3);
 }
+
+#[test]
+fn test_words_simple() {
+    let testcase: &str = "routine argument 1234 0x123 abcd";
+    let verify: Vec<String> = vec![
+        String::from("routine"),
+        String::from("argument"),
+        String::from("1234"),
+        String::from("0x123"),
+        String::from("abcd"),
+    ];
+    let case: Vec<String> = words(testcase);
+    assert_eq!(case, verify);
+}