rustlings/exercises/generics/generics2.rs

30 lines
540 B
Rust
Raw Normal View History

2020-02-28 00:09:08 +00:00
// This powerful wrapper provides the ability to store a positive integer value.
// Rewrite it using generics so that it supports wrapping ANY type.
2020-02-28 00:31:55 +00:00
// I AM NOT DONE
2020-04-21 13:34:25 +01:00
struct Wrapper {
2020-08-10 15:24:21 +01:00
value: u32,
2020-02-28 00:09:08 +00:00
}
2020-04-21 13:34:25 +01:00
impl Wrapper {
2020-02-28 00:09:08 +00:00
pub fn new(value: u32) -> Self {
Wrapper { value }
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn store_u32_in_wrapper() {
assert_eq!(Wrapper::new(42).value, 42);
2020-02-28 00:09:08 +00:00
}
#[test]
fn store_str_in_wrapper() {
2020-04-21 13:34:25 +01:00
assert_eq!(Wrapper::new("Foo").value, "Foo");
2020-02-28 00:09:08 +00:00
}
}