public void Stack_Peek_OnEmptyStack_ThrowException()
{
Stack stack = new Stack();
stack.Peek();
}
public void Stack_PushPopPeek_EmptyStack_ReturnLastString()
{
Stack stack = new Stack();
stack.Push("Testing1");
stack.Push("Testing2");
stack.Push("Testing3");
stack.Pop();
string expected = "Testing2";
string actual = stack.Peek();
Assert.AreEqual(expected, actual);
}
