1
0
mirror of https://github.com/rust-lang/rustlings.git synced 2024-12-14 11:22:55 +02:00
rustlings/exercises/generics/generics2.rs

32 lines
590 B
Rust
Raw Normal View History

2020-02-28 02:09:08 +02:00
// 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 02:31:55 +02:00
// Execute `rustlings hint generics2` for hints!
2020-02-28 02:31:55 +02:00
// I AM NOT DONE
2020-04-21 14:34:25 +02:00
struct Wrapper {
2020-08-10 16:24:21 +02:00
value: u32,
2020-02-28 02:09:08 +02:00
}
2020-04-21 14:34:25 +02:00
impl Wrapper {
2020-02-28 02:09:08 +02:00
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 02:09:08 +02:00
}
#[test]
fn store_str_in_wrapper() {
2020-04-21 14:34:25 +02:00
assert_eq!(Wrapper::new("Foo").value, "Foo");
2020-02-28 02:09:08 +02:00
}
}