rustlings/exercises/structs/structs1.rs

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// structs1.rs
//
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// Address all the TODOs to make the tests pass!
//
// Execute `rustlings hint structs1` or use the `hint` watch subcommand for a
// hint.
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struct ColorClassicStruct {
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red: i32,
green: i32,
blue: i32,
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}
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struct ColorTupleStruct(i32, i32, i32);
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#[derive(Debug)]
struct UnitLikeStruct;
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#[cfg(test)]
mod tests {
use super::*;
#[test]
fn classic_c_structs() {
// TODO: Instantiate a classic c struct!
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let green = ColorClassicStruct{
red: 0,
green: 255,
blue: 0};
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assert_eq!(green.red, 0);
assert_eq!(green.green, 255);
assert_eq!(green.blue, 0);
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}
#[test]
fn tuple_structs() {
// TODO: Instantiate a tuple struct!
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let green = ColorTupleStruct(0, 255, 0);
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assert_eq!(green.0, 0);
assert_eq!(green.1, 255);
assert_eq!(green.2, 0);
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}
#[test]
fn unit_structs() {
// TODO: Instantiate a unit-like struct!
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let unit_like_struct = UnitLikeStruct;
let message = format!("{:?}s are fun!", unit_like_struct);
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assert_eq!(message, "UnitLikeStructs are fun!");
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}
}