// run-pass use std::collections::HashMap; fn check_strs(actual: &str, expected: &str) -> bool { if actual != expected { println!("Found {}, but expected {}", actual, expected); return false; } return true; } pub fn main() { let mut table = HashMap::new(); table.insert("one".to_string(), 1); table.insert("two".to_string(), 2); assert!(check_strs(&format!("{:?}", table), "{\"one\": 1, \"two\": 2}") || check_strs(&format!("{:?}", table), "{\"two\": 2, \"one\": 1}")); }