// result1.rs // Make this test pass! Execute `rustlings hint result1` for hints :) #[derive(PartialEq, Debug)] struct PositiveNonzeroInteger(u64); #[derive(PartialEq, Debug)] enum CreationError { Negative, Zero, } impl PositiveNonzeroInteger { fn new(value: i64) -> Result<PositiveNonzeroInteger, CreationError> { match value { value if value < 0 => Err(CreationError::Negative), 0 => Err(CreationError::Zero), _ => Ok(PositiveNonzeroInteger(value as u64)), } /*if value < 0 {*/ //return Err(CreationError::Negative); //} else if value == 0 { //return Err(CreationError::Zero); //} /*Ok(PositiveNonzeroInteger(value as u64))*/ } } #[test] fn test_creation() { assert!(PositiveNonzeroInteger::new(10).is_ok()); assert_eq!( Err(CreationError::Negative), PositiveNonzeroInteger::new(-10) ); assert_eq!(Err(CreationError::Zero), PositiveNonzeroInteger::new(0)); }