// use evaluate library #[cfg(test)] mod tests { use expression_eval::parsemath::evaluate::evaluate; #[test] fn test_expression_one() { let value = evaluate("2*3+(4-5)+2^3/4".to_string()); assert_eq!(value.unwrap(), 7.0); } #[test] fn test_expression_two() { let value = evaluate("5^7+8-33".to_string()); assert_eq!(value.unwrap(), 78100.00); } #[test] fn test_expression_three() { let value = evaluate("2+2/4+10^2".to_string()); assert_eq!(value.unwrap(), 102.5); } #[test] fn test_expression_four() { let value = evaluate("7^2+4*7".to_string()); assert_eq!(value.unwrap(), 77.0); } #[test] fn test_expression_five() { let value = evaluate("5*2+(5/2)+5".to_string()); assert_eq!(value.unwrap(), 17.5); } }