public void DoesPeekRetrieveTopWhenStackHasOnlyOneElement()
{
LinkedListTypedStack stack = new LinkedListTypedStack();
stack.Push(1);
int expected = 1;
int actual = ((Node)stack.Peek()).Data;
Assert.AreEqual(expected, actual);
int expected_size = 1;
int actual_size = stack.Size;
Assert.AreEqual(expected_size, actual_size);
}
public void DoesPeekRetrieveTopWhenStackIsNotEmpty()
{
LinkedListTypedStack stack = new LinkedListTypedStack();
stack.Push(1);
stack.Push(2);
int expected = 2;
int actual = ((Node)stack.Peek()).Data;
Assert.AreEqual(expected, actual);
int expected_size = 2;
int actual_size = stack.Size;
Assert.AreEqual(expected_size, actual_size);
}
public void DoesPeekThrowsExcetionWhenStackIsEmpty()
{
LinkedListTypedStack stack = new LinkedListTypedStack();
Node top = (Node)stack.Peek();
}