[ta-edu-course-survival-game] Chapter 4 — EditMode Tests

Instructions_00.md

#TODO

Inventory_01.cs

using System.Collections.Generic;
using UnityEngine;

namespace Items
{
    public class Inventory : MonoBehaviour
    {
        public const int MaxCapacity = 99;

        public Dictionary<ItemType, int> Items;

        public void Add(ItemType item)
        {    
            if (Items.ContainsKey(item))
            {
                Items[item] += 1;
            }
            else
            {
                Items.Add(item, 1);
            }
        }

    }
}

Inventory_02.cs

using System.Collections.Generic;
using UnityEngine;

namespace Items
{
    public class Inventory : MonoBehaviour
    {
        public const int MaxCapacity = 99;

        public Dictionary<ItemType, int> Items;

        public void Add(ItemType item)
        {    
            if (Items.ContainsKey(item))
            {
                Items[item] = Mathf.Min(Items[item] + 1, MaxCapacity);
            }
            else
            {
                Items.Add(item, 1);
            }
        }

    }
}

InventoryTests.cs

using UnityEngine;
using NUnit.Framework;
using System.Collections.Generic;
using Items;


public class InventoryTests
{
    [Test]
    public void Can_Add_New_Item()
    {
        var itemType = ScriptableObject.CreateInstance<ItemType>();
        var gameObject = new GameObject();
        var inventory = gameObject.AddComponent<Inventory>();
        inventory.Items = new Dictionary<ItemType, int>();
       
        inventory.Add(itemType);

        Assert.AreEqual(inventory.Items[itemType], 1);
    }

    [Test]
    public void Can_Add_To_Existing_Item()
    {
        var itemType = ScriptableObject.CreateInstance<ItemType>();
        var gameObject = new GameObject();
        var inventory = gameObject.AddComponent<Inventory>();
        inventory.Items = new Dictionary<ItemType, int> { { itemType, 1 } };
        
        inventory.Add(itemType);

        Assert.AreEqual(inventory.Items[itemType], 2);
    }

    [Test]
    public void Cannot_Exceed_Max_Capacity()
    {
        var itemType = ScriptableObject.CreateInstance<ItemType>();
        var gameObject = new GameObject();
        var inventory = gameObject.AddComponent<Inventory>();
        inventory.Items = new Dictionary<ItemType, int> { { itemType, Inventory.MaxCapacity } };

        inventory.Add(itemType);

        Assert.AreEqual(inventory.Items[itemType], Inventory.MaxCapacity);
    }
}