rustlings/solutions/17_tests/tests2.rs
2024-06-27 16:40:26 +02:00

23 lines
447 B
Rust

// Calculates the power of 2 using a bit shift.
// `1 << n` is equivalent to "2 to the power of n".
fn power_of_2(n: u8) -> u64 {
1 << n
}
fn main() {
// You can optionally experiment here.
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn you_can_assert_eq() {
assert_eq!(power_of_2(0), 1);
assert_eq!(power_of_2(1), 2);
assert_eq!(power_of_2(2), 4);
assert_eq!(power_of_2(3), 8);
}
}