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+// hashmaps2.rs
+
+// A basket of fruits in the form of a hash map is given. 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 *MORE
+// THAN 11* fruits in the basket. Three types of fruits - Apple (4),
+// Mango (2) and Lychee (5) are already given in the basket. 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)]
+enum Fruit {
+ Apple,
+ Banana,
+ Mango,
+ Lychee,
+ Pineapple,
+}
+
+fn fruit_basket(basket: &mut HashMap<Fruit, u32>) {
+ let fruit_kinds = vec![
+ Fruit::Apple,
+ Fruit::Banana,
+ Fruit::Mango,
+ Fruit::Lychee,
+ Fruit::Pineapple,
+ ];
+
+ for fruit in fruit_kinds {
+ // TODO: Put new fruits if not already present. Note that you
+ // are not allowed to put any type of fruit that's already
+ // present!
+ }
+}
+
+#[cfg(test)]
+mod tests {
+ use super::*;
+
+ 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
+ }
+
+ #[test]
+ fn test_given_fruits_are_not_modified() {
+ let mut basket = get_fruit_basket();
+ fruit_basket(&mut basket);
+ assert_eq!(*basket.get(&Fruit::Apple).unwrap(), 4);
+ assert_eq!(*basket.get(&Fruit::Mango).unwrap(), 2);
+ assert_eq!(*basket.get(&Fruit::Lychee).unwrap(), 5);
+ }
+
+ #[test]
+ fn at_least_five_types_of_fruits() {
+ let mut basket = get_fruit_basket();
+ fruit_basket(&mut basket);
+ let count_fruit_kinds = basket.len();
+ assert!(count_fruit_kinds >= 5);
+ }
+
+ #[test]
+ fn greater_than_eleven_fruits() {
+ let mut basket = get_fruit_basket();
+ fruit_basket(&mut basket);
+ let count = basket.values().sum::<u32>();
+ assert!(count > 11);
+ }
+}