Refactor tests.

tests/unit.rs

@@ -1,25 +1,22 @@
-use rhai::Engine;
+use rhai::{Engine, EvalAltResult};
 
 #[test]
-fn test_unit() {
+fn test_unit() -> Result<(), EvalAltResult> {
     let mut engine = Engine::new();
-
-    assert_eq!(engine.eval::<()>("let x = (); x"), Ok(()));
+    assert_eq!(engine.eval::<()>("let x = (); x")?, ());
+    Ok(())
 }
 
 #[test]
-fn test_unit_eq() {
+fn test_unit_eq() -> Result<(), EvalAltResult> {
     let mut engine = Engine::new();
-
-    assert_eq!(
-        engine.eval::<bool>("let x = (); let y = (); x == y"),
-        Ok(true)
-    );
+    assert_eq!(engine.eval::<bool>("let x = (); let y = (); x == y")?, true);
+    Ok(())
 }
 
 #[test]
-fn test_unit_with_spaces() {
+fn test_unit_with_spaces() -> Result<(), EvalAltResult> {
     let mut engine = Engine::new();
-
-    assert_eq!(engine.eval::<()>("let x = ( ); x"), Ok(()));
+    assert_eq!(engine.eval::<()>("let x = ( ); x")?, ());
+    Ok(())
 }