Martin S. Johannessen C#3

domain-model.md

@@ -1 +1,36 @@
-#Domain Models In Here
+```
+As a user,
+So I can find a specific cohort,
+I want to search a list of all cohorts by a cohort name.
+```
+
+
+Class: CohortManager
+Method: FindCohort(string name)
+Scenario: name is a substring of cohort name. Return: list of cohort names that name is a substing of
+Scenario: name is not a substring of any cohort. Return: Empty list
+
+```
+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.
+```
+
+Class: ShoppingCart. Method: double CalculateTotal()
+Class: Item. Method: double GetPrice()
+Scenario: There are a number of items in the cartList. Out: CalculateTotal()
+
+```
+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.
+```
+
+Class: Checkout. Method: GetReceipt()
+Class: Item. Method: GetName()
+Class: Shopper. Method: AddReceit(receit). Method: GetReceits()
+Scenario: The shopper buys something. Void: Shopper.AddReceit(Checkout.GetReceit())
+Scenario: The shopper wants to look at their reciets. Out: Shopper.GetReceits()
+
+

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

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+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,double> _items;
+
+        public Basket()
+        {
+            _items = new Dictionary<string,double>();
+        }
+
+        public void Add(string product, double price)
+        {
+            if (_items.ContainsKey(product))
+            {
+                _items[product] += price;
+            }
+            else
+            {
+                _items.Add(product, price);
+            }
+        }
+
+        public bool Contains(string product)
+        {
+            return _items.ContainsKey(product);
+        }
+
+        public double Sum()
+        {
+            return _items.Values.Sum();
+        }
+    }
+}

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

@@ -0,0 +1,47 @@
+using NUnit.Framework;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using tdd_domain_modelling.CSharp.Main;
+
+namespace tdd_domain_modelling.CSharp.Test
+{
+    [TestFixture]
+    public class BasketTests
+    {
+        [Test]
+        public void BasketAddItem()
+        {
+            //arrange
+            Basket basket = new Basket();
+            string product = "Deodorant";
+            int price = 100;
+
+            //act
+            basket.Add(product, price);
+
+            //assert
+            Assert.That(basket.Contains(product), Is.True);
+
+        }
+
+        [Test]
+        public void BasketSumItems() 
+        {
+            //arrange
+            Basket basket = new Basket();
+            basket.Add("Deodorant", 100);
+            basket.Add("Deodorant", 100);
+            basket.Add("Cat", 50.50);
+
+            //act
+            double sum = basket.Sum();
+
+            //assert
+            Assert.That(sum, Is.EqualTo(250.50));
+        }
+    }
+}