public void ClearTest()
{
Stack stack = new Stack();
stack.Push(10);
stack.Clear();
Assert.IsTrue(stack.Size() == 0);
}
public void SizeTest()
{
Stack stack = new Stack();
Assert.IsTrue(stack.Size() == 0);
}
public void PushTest()
{
Stack stack = new Stack();
stack.Push(1);
Assert.IsTrue(stack.Size() == 1);
}
