Fredrik Haupt

src/main/java/com/booleanuk/core/Basket.java

@@ -0,0 +1,24 @@
+package com.booleanuk.core;
+
+import java.util.HashMap;
+
+public class Basket {
+
+    HashMap<String, Integer> items = new HashMap<>();
+
+    public boolean add(String product, int price){
+        if(items.containsKey(product)){
+            return false;
+        }
+        items.put(product, price);
+        return true;
+    }
+
+    public int total(){
+        int result = 0;
+        for(int price : items.values()){
+            result += price;
+        }
+        return result;
+    }
+}

src/test/java/com/booleanuk/core/BasketTest.java

@@ -0,0 +1,35 @@
+package com.booleanuk.core;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+public class BasketTest {
+
+    @Test
+    public void testAddExists(){
+        Basket basket = new Basket();
+        Assertions.assertTrue(basket.add("string", 1));
+    }
+
+    @Test
+    public void testAddActuallyAdds(){
+        Basket basket = new Basket();
+        Assertions.assertTrue(basket.add("productOne", 5));
+        Assertions.assertFalse(basket.add("productOne", 5));
+    }
+
+    @Test
+    public void testTotalExists(){
+        Basket basket = new Basket();
+        Assertions.assertEquals(0, basket.total());
+    }
+
+    @Test
+    public void testTotalFunction(){
+        Basket basket = new Basket();
+        basket.add("productOne", 5);
+        basket.add("productTwon", 4);
+        Assertions.assertEquals(9, basket.total());
+    }
+
+}