138   assert_eq!(string("\"\""), Ok(("", "".to_string())));  in json_string()
139   assert_eq!(string("\"abc\""), Ok(("", "abc".to_string())));  in json_string()
142     Ok(("", "abc\"\\/\x08\x0C\n\r\t\x01——def".to_string())),  in json_string()
144   assert_eq!(string("\"\\uD83D\\uDE10\""), Ok(("", "��".to_string())));  in json_string()
163       ("a".to_string(), Num(42.0)),  in json_object()
164       ("b".to_string(), Str("x".to_string())),  in json_object()
179   let expected = Array(vec![Num(42.0), Str("x".to_string())]);  in json_array()
208           ("null".to_string(), Null),  in json_whitespace()
209           ("true".to_string(), Bool(true)),  in json_whitespace()
210           ("false".to_string(), Bool(false)),  in json_whitespace()
211           ("number".to_string(), Num(123e4)),  in json_whitespace()
212           ("string".to_string(), Str(" abc 123 ".to_string())),  in json_whitespace()
214             "array".to_string(),  in json_whitespace()
215             Array(vec![Bool(false), Num(1.0), Str("two".to_string())])  in json_whitespace()
218             "object".to_string(),  in json_whitespace()
221                 ("a".to_string(), Num(1.0)),  in json_whitespace()
222                 ("b".to_string(), Str("c".to_string())),  in json_whitespace()
228           ("empty_array".to_string(), Array(vec![]),),  in json_whitespace()
229           ("empty_object".to_string(), Object(HashMap::new()),),  in json_whitespace()