public void AddNullBabyToBabyListShouldThrowArgumentNullException()
{
Baby b = null;
BabyList babies = new BabyList();
babies.AddBaby(b);
}
public void AddBabyUpdatesList()
{
DateTime endDate = new DateTime(2017, 9, 19);
DateTime startDate = new DateTime(2016, 10, 19);
Baby b = new Baby(5, "joe", "bloggs", startDate, endDate, "main street", "001243235", "ann bloggs");
BabyList babyList = new BabyList();
babyList.AddBaby(b);
CollectionAssert.Contains(babyList.Babies, b);
}