title abbreviations: add semantic tests

crates/livesplit-title-abbreviations/src/lib.rs

@@ -227,6 +227,12 @@ mod tests {
     use alloc::boxed::Box;
     use alloc::vec;
 
+    // The tests using actual game titles can be thrown out or edited if any
+    // major changes need to be made to the abbreviation algorithm. Do not
+    // hesitate to remove them if they are getting in the way of actual
+    // improvements.
+    //
+    // They exist purely as another measure to prevent accidental breakage.
     #[test]
     fn burnout_3() {
         let abbreviations = abbreviate("Burnout 3: Takedown");
@@ -276,15 +282,37 @@ mod tests {
 
         assert_eq!(abbreviations, expected);
     }
+
     #[test]
+    #[rustfmt::skip]
     fn sm64() {
         let abbreviations = abbreviate("Super Mario 64");
 
         let expected = vec![
             Box::from("SM64"),
-            Box::from("Super Mario 64")
+            Box::from("Super Mario 64"),
         ];
 
         assert_eq!(abbreviations, expected);
     }
+
+    #[test]
+    fn contains_original_title() {
+        let abbreviations = abbreviate("test title: the game");
+        assert!(abbreviations.contains(&Box::from("test title: the game")));
+    }
+
+    #[test]
+    fn removes_parens() {
+        let abbreviations = abbreviate("test title (the game)");
+        assert!(abbreviations.contains(&Box::from("test title")));
+    }
+
+    #[test]
+    fn original_title_is_last() {
+        let abbreviations = abbreviate("test title: the game");
+        let last = abbreviations.last().unwrap();
+
+        assert_eq!("test title: the game", last.as_ref())
+    }
 }