rustlings/exercises/hashmaps/hashmaps1.rs

45 lines
1.2 KiB
Rust

// hashmaps1.rs
//
// A basket of fruits in the form of a hash map needs to be defined. The key
// represents the name of the fruit and the value represents how many of that
// particular fruit is in the basket. You have to put at least three different
// types of fruits (e.g apple, banana, mango) in the basket and the total count
// of all the fruits should be at least five.
//
// Make me compile and pass the tests!
//
// Execute `rustlings hint hashmaps1` or use the `hint` watch subcommand for a
// hint.
use std::collections::HashMap;
fn fruit_basket() -> HashMap<String, u32> {
let mut basket: HashMap<String, u32> = HashMap::new();
// Two bananas are already given for you :)
basket.insert(String::from("banana"), 2);
// TODO: Put more fruits in your basket here.
basket.insert("apple".to_string(), 3);
basket.insert("mango".to_string(), 4);
basket.insert("orange".to_string(), 4);
basket
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn at_least_three_types_of_fruits() {
let basket = fruit_basket();
assert!(basket.len() >= 3);
}
#[test]
fn at_least_five_fruits() {
let basket = fruit_basket();
assert!(basket.values().sum::<u32>() >= 5);
}
}