test: add quote test

src/builtins/quote.rs

@@ -44,3 +44,13 @@ impl Builtin for Quote {
         Ok(())
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_quote() {
+        assert_eq!(Quote.execute(&mut BuiltinConfig::new(), vec![]), Ok(()))
+    }
+}