Add unequip tests

common/src/comp/inventory/slot.rs

@@ -249,9 +249,71 @@ pub fn equip(slot: usize, inventory: &mut Inventory, loadout: &mut Loadout) {
     }
 }
 
+/// Unequip an item from slot and place into inventory. Will fail if if
+/// inventory has no slots available.
+///
+/// ```
+/// use veloren_common::{
+///     comp::{
+///         slot::{unequip, EquipSlot},
+///         Inventory,
+///     },
+///     LoadoutBuilder,
+/// };
+///
+/// let mut inv = Inventory {
+///     slots: vec![None],
+///     amount: 0,
+/// };
+///
+/// let mut loadout = LoadoutBuilder::new()
+///     .defaults()
+///     .active_item(LoadoutBuilder::default_item_config_from_str(Some(
+///         "common.items.weapons.sword.zweihander_sword_0",
+///     )))
+///     .build();
+///
+/// let slot = EquipSlot::Mainhand;
+///
+/// unequip(slot, &mut inv, &mut loadout);
+/// assert_eq!(None, loadout.active_item);
+/// ```
 pub fn unequip(slot: EquipSlot, inventory: &mut Inventory, loadout: &mut Loadout) {
     loadout_remove(slot, loadout) // Remove item from loadout
         .and_then(|i| inventory.push(i)) // Insert into inventory
         .and_then(|i| loadout_insert(slot, i, loadout)) // If that fails put back in loadout
         .unwrap_none(); // Never fails
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::LoadoutBuilder;
+
+    #[test]
+    fn test_unequip() {
+        let mut inv = Inventory {
+            slots: vec![None],
+            amount: 0,
+        };
+
+        let sword = LoadoutBuilder::default_item_config_from_str(Some(
+            "common.items.weapons.sword.zweihander_sword_0",
+        ));
+
+        let mut loadout = LoadoutBuilder::new()
+            .defaults()
+            .active_item(sword.clone())
+            .second_item(sword.clone())
+            .build();
+
+        assert_eq!(sword, loadout.active_item);
+        unequip(EquipSlot::Mainhand, &mut inv, &mut loadout);
+        // We have space in the inventory, so this should have unequipped
+        assert_eq!(None, loadout.active_item);
+
+        unequip(EquipSlot::Offhand, &mut inv, &mut loadout);
+        // There is no more space in the inventory, so this should still be equipped
+        assert_eq!(sword, loadout.second_item);
+    }
+}

common/src/comp/inventory/test.rs

@@ -6,9 +6,6 @@ lazy_static! {
         assets::load_expect_cloned("common.items.debug.possess")
     ];
 }
-/// The `Default` inventory should contain 3 items: cheese, apple, lantern
-#[test]
-fn create_default_count() { assert_eq!(Inventory::default().count(), 2) }
 
 /// Attempting to push into a full inventory should return the same item.
 #[test]

common/src/loadout_builder.rs

@@ -110,7 +110,7 @@ impl LoadoutBuilder {
     }
 
     pub fn second_item(mut self, item: Option<ItemConfig>) -> Self {
-        self.0.active_item = item;
+        self.0.second_item = item;
 
         self
     }