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Add quiz3 solution

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This commit is contained in:
David Bailey 2021-01-16 20:45:18 +00:00
parent fa6f013a27
commit fed35d4a68
1 changed files with 2 additions and 4 deletions

6
exercises/quiz3.rs
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@ -7,8 +7,6 @@
// we expect to get when we call `times_two` with a negative number. // we expect to get when we call `times_two` with a negative number.
// No hints, you can do this :) // No hints, you can do this :)
// I AM NOT DONE
pub fn times_two(num: i32) -> i32 { pub fn times_two(num: i32) -> i32 {
num * 2 num * 2
} }
@ -19,11 +17,11 @@ mod tests {
#[test] #[test]
fn returns_twice_of_positive_numbers() { fn returns_twice_of_positive_numbers() {
assert_eq!(times_two(4), ???); assert_eq!(times_two(4), 8);
} }
#[test] #[test]
fn returns_twice_of_negative_numbers() { fn returns_twice_of_negative_numbers() {
// TODO write an assert for `times_two(-4)` assert_eq!(times_two(-4), -8);
} }
} }