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authormo8it <mo8it@proton.me>2024-07-05 13:39:50 +0200
committermo8it <mo8it@proton.me>2024-07-05 13:39:50 +0200
commit7123c7ae3a9605fbe962e4ef0a0f1424cd16fef8 (patch)
treec67f7e62bb9a179ae4fdbab492501cb6847e64c7 /exercises/11_hashmaps/hashmaps2.rs
parent77b687d501771c24bd83294d97b8e6f9ffa92d6b (diff)
parent4d9c346a173bb722b929f3ea3c00f84954483e24 (diff)
Merge remote-tracking branch 'upstream/main' into fix-enum-variant-inconsistency
Diffstat (limited to 'exercises/11_hashmaps/hashmaps2.rs')
-rw-r--r--exercises/11_hashmaps/hashmaps2.rs43
1 files changed, 23 insertions, 20 deletions
diff --git a/exercises/11_hashmaps/hashmaps2.rs b/exercises/11_hashmaps/hashmaps2.rs
index a592569..b3691b6 100644
--- a/exercises/11_hashmaps/hashmaps2.rs
+++ b/exercises/11_hashmaps/hashmaps2.rs
@@ -1,5 +1,3 @@
-// hashmaps2.rs
-//
// We're collecting different fruits to bake a delicious fruit cake. For this,
// we have a basket, which we'll represent in the form of a hash map. The key
// represents the name of each fruit we collect and the value represents how
@@ -8,17 +6,10 @@
// must add fruit to the basket so that there is at least one of each kind and
// more than 11 in total - we have a lot of mouths to feed. You are not allowed
// to insert any more of these fruits!
-//
-// Make me pass the tests!
-//
-// Execute `rustlings hint hashmaps2` or use the `hint` watch subcommand for a
-// hint.
-
-// I AM NOT DONE
use std::collections::HashMap;
-#[derive(Hash, PartialEq, Eq)]
+#[derive(Hash, PartialEq, Eq, Debug)]
enum Fruit {
Apple,
Banana,
@@ -28,7 +19,7 @@ enum Fruit {
}
fn fruit_basket(basket: &mut HashMap<Fruit, u32>) {
- let fruit_kinds = vec![
+ let fruit_kinds = [
Fruit::Apple,
Fruit::Banana,
Fruit::Mango,
@@ -43,18 +34,18 @@ fn fruit_basket(basket: &mut HashMap<Fruit, u32>) {
}
}
+fn main() {
+ // You can optionally experiment here.
+}
+
#[cfg(test)]
mod tests {
use super::*;
// Don't modify this function!
fn get_fruit_basket() -> HashMap<Fruit, u32> {
- let mut basket = HashMap::<Fruit, u32>::new();
- basket.insert(Fruit::Apple, 4);
- basket.insert(Fruit::Mango, 2);
- basket.insert(Fruit::Lychee, 5);
-
- basket
+ let content = [(Fruit::Apple, 4), (Fruit::Mango, 2), (Fruit::Lychee, 5)];
+ HashMap::from_iter(content)
}
#[test]
@@ -81,13 +72,25 @@ mod tests {
let count = basket.values().sum::<u32>();
assert!(count > 11);
}
-
+
#[test]
fn all_fruit_types_in_basket() {
+ let fruit_kinds = [
+ Fruit::Apple,
+ Fruit::Banana,
+ Fruit::Mango,
+ Fruit::Lychee,
+ Fruit::Pineapple,
+ ];
+
let mut basket = get_fruit_basket();
fruit_basket(&mut basket);
- for amount in basket.values() {
- assert_ne!(amount, &0);
+
+ for fruit_kind in fruit_kinds {
+ let Some(amount) = basket.get(&fruit_kind) else {
+ panic!("Fruit kind {fruit_kind:?} was not found in basket");
+ };
+ assert!(*amount > 0);
}
}
}