public void ArrayInitializers()
{
var tl1 = new TripleList<int>() { 5, 10, 15 };
Assert.AreEqual(3, tl1.Count());
var tl2 = new TripleList<int>() { 0, tl1, 20 };
Assert.AreEqual(3, tl1.Count());
Assert.AreEqual(5, tl2.Count());
Assert.AreEqual(tl1.Value, tl2.MiddleElement.Value);
var tl1Sorted = tl1.ToList();
tl1Sorted.Sort();
var tl2Sorted = tl2.ToList();
tl2Sorted.Sort();
Enumerable.SequenceEqual(tl1Sorted, tl2Sorted);
}
public void TestAddingTreeElements()
{
TripleList<int> tripleList = new TripleList<int>();
int value1 = 4;
int value2 = -9;
int value3 = 47;
tripleList.Add(value1);
tripleList.Add(value2);
tripleList.Add(value3);
Assert.AreEqual(3, tripleList.Count());
// checking values
Assert.AreEqual(value1, tripleList.Value);
Assert.AreEqual(value2, tripleList.MiddleElement.Value);
Assert.AreEqual(value3, tripleList.NextElement.Value);
// checking neighbour Nodes of first element
Assert.IsNull(tripleList.PreviousElement);
Assert.IsNotNull(tripleList.MiddleElement);
Assert.IsNotNull(tripleList.NextElement);
// checking neighbour Nodes of second element
Assert.IsNull(tripleList.MiddleElement.PreviousElement);
Assert.IsNotNull(tripleList.MiddleElement.MiddleElement);
Assert.IsNull(tripleList.MiddleElement.NextElement);
// checking neighbour Nodes of third/last element
Assert.IsNotNull(tripleList.NextElement.PreviousElement);
Assert.IsNull(tripleList.NextElement.MiddleElement);
Assert.IsNull(tripleList.NextElement.NextElement);
// checking values
Assert.AreEqual(value1, tripleList.Value);
Assert.AreEqual(value2, tripleList.MiddleElement.Value);
Assert.AreEqual(value3, tripleList.NextElement.Value);
}
public void TestEmptyListCreation()
{
TripleList<int> tripleList = new TripleList<int>();
Assert.AreEqual(0, tripleList.Count());
Assert.IsNull(tripleList.PreviousElement);
Assert.IsNull(tripleList.MiddleElement);
Assert.IsNull(tripleList.NextElement);
}
public void TestAddingSingleElement()
{
TripleList<int> tripleList = new TripleList<int>();
const int value = 4;
tripleList.Add(value);
Assert.AreEqual(1, tripleList.Count());
Assert.AreEqual(value, tripleList.Value);
Assert.IsNull(tripleList.PreviousElement);
Assert.IsNull(tripleList.MiddleElement);
Assert.IsNull(tripleList.NextElement);
}
public void TestAddingFiveElements()
{
TripleList<int> tripleList = new TripleList<int>();
int value1 = 1;
int value2 = 2;
int value3 = 3;
int value4 = 4;
int value5 = 5;
tripleList.Add(value1);
tripleList.Add(value2);
tripleList.Add(value3);
tripleList.Add(value4);
tripleList.Add(value5);
Assert.AreEqual(5, tripleList.Count());
// checking values
Assert.AreEqual(value1, tripleList.Value);
Assert.AreEqual(value2, tripleList.MiddleElement.Value);
Assert.AreEqual(value3, tripleList.NextElement.Value);
Assert.AreEqual(value4, tripleList.NextElement.MiddleElement.Value);
Assert.AreEqual(value5, tripleList.NextElement.NextElement.Value);
}
