public void peekValue()
{
Problem2 p2 = new Problem2();
p2.Push(3);
int expected = 3;
Object actual = p2.Peek();
Assert.AreEqual(expected, actual, "Wrong output from peeking list");
}
public void peekEmptyList()
{
//arange
Problem2 p2 = new Problem2();
Object expected = null;
//act
Object actual = p2.Peek();
//assert
Assert.AreEqual(expected, actual, "Wrong output from peeking empty list");
}
public void valueStillTopAfterPeek()
{
Problem2 p2 = new Problem2();
p2.Push(3);
p2.Push(2);
int expected = 2;
p2.Peek();
Object actual = p2.Pop();
Assert.AreEqual(expected, actual, "Wrong output from popping list after peek");
}