From c1ed6b10fe0725846fef8328b328159b6302fe3b Mon Sep 17 00:00:00 2001 From: mokou Date: Thu, 14 Jul 2022 12:31:28 +0200 Subject: feat(strings): add strings3 --- exercises/strings/strings3.rs | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 exercises/strings/strings3.rs (limited to 'exercises') diff --git a/exercises/strings/strings3.rs b/exercises/strings/strings3.rs new file mode 100644 index 0000000..bb0a259 --- /dev/null +++ b/exercises/strings/strings3.rs @@ -0,0 +1,41 @@ +// strings3.rs +// Execute `rustlings hint strings3` or use the `hint` watch subcommand for a hint. + +fn trim_me(input: &str) -> String { + // TODO: Remove whitespace from the end of a string! + ??? +} + +fn compose_me(input: &str) -> String { + // TODO: Add " world!" to the string! There's multiple ways to do this! + ??? +} + +fn replace_me(input: &str) -> String { + // TODO: Replace "cars" in the string with "balloons"! + ??? +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn trim_a_string() { + assert_eq!(trim_me("Hello! "), "Hello!"); + assert_eq!(trim_me(" What's up!"), "What's up!"); + assert_eq!(trim_me(" Hola! "), "Hola!"); + } + + #[test] + fn compose_a_string() { + assert_eq!(compose_me("Hello"), "Hello world!"); + assert_eq!(compose_me("Goodbye"), "Goodbye world!"); + } + + #[test] + fn replace_a_string() { + assert_eq!(replace_me("I think cars are cool"), "I think balloons are cool"); + assert_eq!(replace_me("I love to look at cars"), "I love to look at balloons"); + } +} -- cgit v1.2.3