public void WhenIsEmptyList_ReturnsEmptyList()
{
var sut = new ChainedList <int>();
sut.Reverse();
Assert.IsTrue(sut.IsEmpty);
}
public void WhenHasOneNode_ReturnsListWithOneNode()
{
var sut = new ChainedList <int>(new List <int> {
1
});
sut.Reverse();
Assert.AreEqual(1, sut.Head.Value);
Assert.AreEqual(1, sut.Tail.Value);
Assert.IsNull(sut.Head.Next);
Assert.IsFalse(sut.IsEmpty);
}
public void WhenCalled_ReturnsFlatList()
{
var sut = new ChainedList <int>(new List <int> {
1, 2, 3, 4
});
sut.Reverse();
Assert.AreEqual(sut.Count, 4);
var first = sut.Head;
var second = first.Next;
var third = second.Next;
var fourth = third.Next;
Assert.AreEqual(4, first.Value);
Assert.AreEqual(3, second.Value);
Assert.AreEqual(2, third.Value);
Assert.AreEqual(1, fourth.Value);
Assert.AreEqual(1, sut.Tail.Value);
Assert.IsNull(fourth.Next);
}
