From a4091ade5cde7602acef0601cb7f69984fcad009 Mon Sep 17 00:00:00 2001 From: mo8it Date: Mon, 8 Jul 2024 14:40:35 +0200 Subject: iterators3: Add `IntegerOverflow` error variant --- exercises/18_iterators/iterators3.rs | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'exercises') diff --git a/exercises/18_iterators/iterators3.rs b/exercises/18_iterators/iterators3.rs index 65a0573..6b1eca1 100644 --- a/exercises/18_iterators/iterators3.rs +++ b/exercises/18_iterators/iterators3.rs @@ -1,12 +1,16 @@ #[derive(Debug, PartialEq, Eq)] enum DivisionError { + // Example: 42 / 0 DivideByZero, + // Only case for `i64`: `i64::MIN / -1` because the result is `i64::MAX + 1` + IntegerOverflow, + // Example: 5 / 2 = 2.5 NotDivisible, } // TODO: Calculate `a` divided by `b` if `a` is evenly divisible by `b`. // Otherwise, return a suitable error. -fn divide(a: i32, b: i32) -> Result { +fn divide(a: i64, b: i64) -> Result { todo!(); } @@ -42,6 +46,11 @@ mod tests { assert_eq!(divide(81, 0), Err(DivisionError::DivideByZero)); } + #[test] + fn test_integer_overflow() { + assert_eq!(divide(i64::MIN, -1), Err(DivisionError::IntegerOverflow)); + } + #[test] fn test_not_divisible() { assert_eq!(divide(81, 6), Err(DivisionError::NotDivisible)); -- cgit v1.2.3