44 lines
714 B
Rust
44 lines
714 B
Rust
// tests3.rs
|
|
// This test isn't testing our function -- make it do that in such a way that
|
|
// the test passes. Then write a second test that tests that we get the result
|
|
// we expect to get when we call `is_even(5)`. Scroll down for hints!
|
|
|
|
pub fn is_even(num: i32) -> bool {
|
|
num % 2 == 0
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
|
|
#[test]
|
|
fn is_true_when_even() {
|
|
assert!(false);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// You can call a function right where you're passing arguments to `assert!` -- so you could do
|
|
// something like `assert!(having_fun())`. If you want to check that you indeed get false, you
|
|
// can negate the result of what you're doing using `!`, like `assert!(!having_fun())`.
|