From 287172698aea106723682542e011b64f3d6d218a Mon Sep 17 00:00:00 2001 From: Joshua Carlson Date: Mon, 3 Jul 2023 14:52:13 -0400 Subject: [PATCH] added if3 based on: `Using if in a let Statement` --- exercises/if/if3.rs | 55 +++++++++++++++++++++++++++++++++++++++++++++ info.toml | 7 ++++++ 2 files changed, 62 insertions(+) create mode 100644 exercises/if/if3.rs diff --git a/exercises/if/if3.rs b/exercises/if/if3.rs new file mode 100644 index 0000000..73a7025 --- /dev/null +++ b/exercises/if/if3.rs @@ -0,0 +1,55 @@ +// if3.rs +// +// Execute `rustlings hint if3` or use the `hint` watch subcommand for a hint. + +// I AM NOT DONE + +pub fn animal_habitat(animal: &str) -> &'static str { + let identifier = if animal == "crab" { + 1 + } else if animal == "gopher" { + 2.0 + } else if animal == "snake" { + 3 + } else { + "Unknown" + }; + + // DO NOT CHANGE THIS STATEMENT BELOW + let habitat = if identifier == 1 { + "Beach" + } else if identifier == 2 { + "Burrow" + } else if identifier == 3 { + "Desert" + } else { + "Unknown" + }; + + habitat +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn gopher_lives_in_burrow() { + assert_eq!(animal_habitat("gopher"), "Burrow") + } + + #[test] + fn snake_lives_in_desert() { + assert_eq!(animal_habitat("snake"), "Desert") + } + + #[test] + fn crab_lives_on_beach() { + assert_eq!(animal_habitat("crab"), "Beach") + } + + #[test] + fn unknown_animal() { + assert_eq!(animal_habitat("dinosaur"), "Unknown") + } +} diff --git a/info.toml b/info.toml index e4863cb..e8a28cb 100644 --- a/info.toml +++ b/info.toml @@ -167,6 +167,13 @@ For that first compiler error, it's important in Rust that each conditional block returns the same type! To get the tests passing, you will need a couple conditions checking different input values.""" +[[exercises]] +name = "if3" +path = "exercises/if/if3.rs" +mode = "test" +hint = """ +In Rust, every arm of an `if` expression has to return the same type of value. Make sure the type is consistent across all arms.""" + # QUIZ 1 [[exercises]]