rustlings/exercises/09_strings/strings3.rs

46 lines
1.1 KiB
Rust
Raw Normal View History

2022-07-14 13:31:28 +03:00
// strings3.rs
//
// Execute `rustlings hint strings3` or use the `hint` watch subcommand for a
// hint.
2022-07-14 13:31:28 +03:00
2022-07-15 14:24:11 +03:00
// I AM NOT DONE
2022-07-14 13:31:28 +03:00
fn trim_me(input: &str) -> String {
// TODO: Remove whitespace from both ends of a string!
2022-07-14 13:31:28 +03:00
???
}
fn compose_me(input: &str) -> String {
2023-12-04 23:35:53 +03:00
// TODO: Add " world!" to the string! There are multiple ways to do this!
2022-07-14 13:31:28 +03:00
???
}
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");
}
}