enum Fruit {
Apple,
Bramble(BrambleFruit),
Pear,
}
trait NameOf {
fn name_of(&self) -> &str;
}
impl NameOf for Fruit {
fn name_of(&self) -> &str {
match self {
Fruit::Apple => "apple",
Fruit::Bramble(fruit) => fruit.name_of(),
Fruit::Pear => "pear",
}
}
}
enum BrambleFruit {
Blackberry,
}
impl NameOf for BrambleFruit {
fn name_of(&self) -> &str {
match self {
BrambleFruit::Blackberry => "blackberry",
}
}
}
#[cfg(test)]
mod tests {
use super::*;
use faraday::parameterized;
#[parameterized(
apple = { Fruit::Apple, "apple" },
pear = { Fruit::Pear, "pear" },
blackberry = { Fruit::Bramble(BrambleFruit::Blackberry), "blackberry" },
)]
fn a_fruity_test(fruit: Fruit, name: &str) {
assert_eq!(fruit.name_of(), name)
}
}