public void WhenCalledAndEmptyList_ShouldReturn()
{
var sut = new ChainedList <int>();
sut.RemoveTail();
Assert.IsNull(sut.Head);
}
public void WhenCalledListHasOneNode_ListShouldBeEmpty()
{
var sut = new ChainedList <int>(new List <int> {
1
});
sut.RemoveTail();
Assert.IsTrue(sut.IsEmpty);
}
public void WhenCalled_ShouldRemoveLastNode()
{
var sut = new ChainedList <int>(new List <int> {
1, 2, 4, 10
});
sut.RemoveTail();
var first = sut.Head;
var second = first.Next;
var third = second.Next;
Assert.AreEqual(1, first.Value);
Assert.AreEqual(2, second.Value);
Assert.AreEqual(4, third.Value);
Assert.IsNull(third.Next);
}
