public void TestStackOperations()
{
LinkStack <int> stack = new LinkStack <int>();
stack.Push(1);
Assert.AreEqual(1, stack.Peek());
Assert.AreEqual(1, stack.Peek());
stack.Push(2);
Assert.AreEqual(2, stack.Peek());
Assert.AreEqual(2, stack.Peek());
stack.Push(3);
Assert.AreEqual(3, stack.Peek());
Assert.AreEqual(3, stack.Peek());
Assert.AreEqual(3, stack.Pop());
Assert.AreEqual(2, stack.Peek());
Assert.AreEqual(2, stack.Peek());
Assert.AreEqual(2, stack.Pop());
Assert.AreEqual(1, stack.Peek());
Assert.AreEqual(1, stack.Peek());
Assert.AreEqual(1, stack.Pop());
Assert.Catch(() => stack.Peek()); //een lege stack geeft een Exception!
Assert.Catch(() => stack.Peek()); //een lege stack geeft een Exception!
}
public void TestPushPopCheck()
{
LinkStack <int> stack = new LinkStack <int>();
stack.Push(1);
stack.Push(2);
stack.Push(3);
Assert.AreEqual(3, stack.Pop());
Assert.AreEqual(2, stack.Pop());
Assert.AreEqual(1, stack.Pop());
}
public void TestCount()
{
LinkStack <int> stack = new LinkStack <int>();
Assert.AreEqual(0, stack.Count);
stack.Push(1);
stack.Push(2);
stack.Push(3);
Assert.AreEqual(3, stack.Count);
stack.Pop();
Assert.AreEqual(2, stack.Count);
stack.Pop();
stack.Pop();
Assert.AreEqual(0, stack.Count);
}
public void TestPopEmpty()
{
LinkStack <int> stack = new LinkStack <int>();
stack.Push(1);
stack.Push(2);
stack.Push(3);
Assert.AreEqual(3, stack.Pop());
Assert.AreEqual(2, stack.Pop());
Assert.AreEqual(1, stack.Pop());
//Op een lege stack kunnen we geen pop doen
//we controleren op een "fout" (Exception)
Assert.Catch(() => stack.Pop());
}
