pub struct Guess { value: i32, } impl Guess { pub fn new(value: i32) -> Guess { // ANCHOR: here if value < 1 { panic!( "Guess value must be less than or equal to 100, got {}.", value ); } else if value > 100 { panic!( "Guess value must be greater than or equal to 1, got {}.", value ); } // ANCHOR_END: here Guess { value } } } #[cfg(test)] mod tests { use super::*; #[test] #[should_panic(expected = "Guess value must be less than or equal to 100")] fn greater_than_100() { Guess::new(200); } }