public void Reverse_PassedEmptyStack_ReturnsEmptyStack()
{
Stack input = new Stack();
Stack output = ReverseStack.Reverse(input);
Stack correct = new Stack();
CollectionAssert.AreEqual(correct, output);
}
public void Reverse_Passed123Stack_Returns321Stack()
{
Stack input = new Stack();
input.Push(1);
input.Push(2);
input.Push(3);
Stack output = ReverseStack.Reverse(input);
Stack correct = new Stack();
correct.Push(3);
correct.Push(2);
correct.Push(1);
CollectionAssert.AreEqual(correct, output);
}