Added backslash to the quoted string test

src/parser/parser.rs

@@ -614,10 +614,10 @@ mod tests {
     }
 
     #[test]
-    fn test_temp_string() {
+    fn test_quoted_string() {
         assert_eq!(
-            quoted_string(r#""foo\"bar""#),
-            Ok(("", r#"foo"bar"#.to_owned()))
+            quoted_string(r#""foo\"bar\\baz""#),
+            Ok(("", r#"foo"bar\baz"#.to_owned()))
         );
     }
 }