public void CustomerFirstName_IsReturned_WhenOrderAdded()
{
//Arrange
OrderFunctionality o9 = new OrderFunctionality();
Order o3 = new Order("REF-000-001", "test", "name", "1 High St", "town", "county", "12345", "01/03/2020");
o9.NewOrder(o3);
//Act
int i = o9.OrderInformation("REF-000-001");
//Assert
Assert.AreEqual(o9.OrderFirstName(i), "test");
}