John Ferdie Abueg

domain-model.md

@@ -1 +1,24 @@
-#Domain Models In Here
+#Domain Models In Here
+
+========================================================================
+USER STORY:
+As a supermarket shopper,
+So that I can pay for products at checkout,
+I'd like to be able to know the total cost of items in my basket.
+
+DOMAIN MODEL:
+Classes                       Methods                                               Scenario                               Outputs
+Checkout      CalculateTotalSum(List<Items> itemsScanned)	     Calculate total sum of items scanned on checkout		float/double
+
+=================================================================================================================================================
+USER STORY:
+As an organised individual,
+So that I can evaluate my shopping habits,
+I'd like to see an itemised receipt that includes the name and price of the products
+I bought as well as the quantity, and a total cost of my basket.
+
+DOMAIN MODEL:
+Classes                    Methods                                                                      Scenario                                               Outputs
+Checkout     Receipt(List<Items> itemsBought, List<Items> itemsScanned)         Display information about bought items and items currently in basket        Items (Object)
+
+========================================================================

tdd-domain-modelling.CSharp.Main/Basket.cs

@@ -0,0 +1,49 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace tdd_domain_modelling.CSharp.Main
+{
+    public class Basket
+    {
+        private Dictionary<string, int> _items = new Dictionary<string, int>();
+
+        public Basket()
+        {
+
+        }
+
+        public bool Add(string product, int price)
+        {
+            // Check if item is already in basket/items hashmap
+            if (!_items.ContainsKey(product)) 
+            {
+                _items.Add(product, price);
+                return true;
+            }
+
+            return false;
+        }
+
+        public int Total()
+        {
+            int total = 0;
+
+            if (_items.Count == 0) 
+            {
+                return total;
+            }
+
+            // Calculate total sum of basket/items hashmap
+            foreach (var item in _items) {
+                total += item.Value;
+            }
+
+            return total;
+        }
+
+        public Dictionary<string, int> Items { get { return _items; } }
+    }
+}

tdd-domain-modelling.CSharp.Main/CohortManager.cs

@@ -8,5 +8,9 @@ namespace tdd_domain_modelling.CSharp.Main
 {
     public class CohortManager
     {
+        public CohortManager() 
+        {
+
+        }
     }
 }

tdd-domain-modelling.CSharp.Test/BasketTests.cs

@@ -0,0 +1,56 @@
+using NUnit.Framework;
+using System.Reflection;
+using tdd_domain_modelling.CSharp.Main;
+
+namespace tdd_domain_modelling.CSharp.Test
+{
+    [TestFixture]
+    public class BasketTests
+    {
+        [TestCase("Banana", 50)]
+        public void AddNewItemToBasket(string productName, int productPrice)
+        {
+            // 1. Set up
+            Basket basket = new Basket();
+
+            // 2. Execute
+            basket.Add(productName, productPrice);
+
+            // 3. Verify
+            Assert.IsTrue(basket.Items.ContainsKey(productName));
+
+        }
+
+        [Test]
+        public void TryAddingExistingItemToBasket()
+        {
+            // 1. Set up
+            Basket basket = new Basket();
+            basket.Add("Banana", 50);
+
+            // 2. Execute
+            bool result = basket.Add("Banana", 50);
+
+            // 3. Verify
+            Assert.IsFalse(result);
+
+        }
+
+        [Test]
+        public void CalculateCostOfItemsInBasket()
+        {
+            // 1. Set up
+            Basket basket = new Basket();
+
+            // 2. Execute
+            basket.Add("Banana", 50);
+            basket.Add("Pear", 40);
+            basket.Add("Grape", 30);
+
+            int result = basket.Total();
+
+            // 3. Verify
+            Assert.IsTrue(result == 120);
+        }
+    }
+}