// 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 whether we get the result
// we expect to get when we call `is_even(5)`.
// Execute `rustlings hint tests3` 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!(!is_even(5));
    }
    #[test]
    fn is_even_works() ->Result<(), String> {
        if !is_even(1<<10) {
            Err(String::from("1<<10"))
        } else {
            Ok(())
        }
    }
}