public void WhenListIsEmpty_ShouldInsertItemAtStart()
{
var sut = new ChainedList <int>();
sut.AddAtStart(10);
Assert.AreEqual(10, sut.Head.Value);
Assert.IsNull(sut.Head.Next);
}
public void WhenCalled_ShouldInsertItemAtStart()
{
var sut = new ChainedList <int>(new List <int> {
1, 2, 4
});
sut.AddAtStart(10);
var first = sut.Head;
var second = first.Next;
var third = second.Next;
var fourth = third.Next;
Assert.AreEqual(10, first.Value);
Assert.AreEqual(1, second.Value);
Assert.AreEqual(2, third.Value);
Assert.AreEqual(4, fourth.Value);
Assert.IsNull(fourth.Next);
}
