From 64d95837e9813541cf5b357de13865ce687ae98d Mon Sep 17 00:00:00 2001 From: Adam Brewer Date: Mon, 16 Oct 2023 07:37:12 -0400 Subject: Update Exercises Directory Names to Reflect Order --- exercises/15_traits/traits1.rs | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 exercises/15_traits/traits1.rs (limited to 'exercises/15_traits/traits1.rs') diff --git a/exercises/15_traits/traits1.rs b/exercises/15_traits/traits1.rs new file mode 100644 index 0000000..37dfcbf --- /dev/null +++ b/exercises/15_traits/traits1.rs @@ -0,0 +1,42 @@ +// traits1.rs +// +// Time to implement some traits! Your task is to implement the trait +// `AppendBar` for the type `String`. The trait AppendBar has only one function, +// which appends "Bar" to any object implementing this trait. +// +// Execute `rustlings hint traits1` or use the `hint` watch subcommand for a +// hint. + +// I AM NOT DONE + +trait AppendBar { + fn append_bar(self) -> Self; +} + +impl AppendBar for String { + // TODO: Implement `AppendBar` for type `String`. +} + +fn main() { + let s = String::from("Foo"); + let s = s.append_bar(); + println!("s: {}", s); +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn is_foo_bar() { + assert_eq!(String::from("Foo").append_bar(), String::from("FooBar")); + } + + #[test] + fn is_bar_bar() { + assert_eq!( + String::from("").append_bar().append_bar(), + String::from("BarBar") + ); + } +} -- cgit v1.2.3