public void Peek_nonString_ReturnException()
{
Stack testStack = new Stack();
testStack.Peek();
}
public void Peek_PushItemx_Returnsx()
{
Stack testStack = new Stack();
testStack.Push("Bob");
testStack.Push("Fred");
string expected = "Fred";
string actual = testStack.Peek();
Assert.AreEqual(expected, actual);
}
public void Peek_PushManyItems_ReturnLastItemPushed()
{
Stack testStack = new Stack();
testStack.Push("Fred");
testStack.Push("Max");
testStack.Push("Jim");
testStack.Push("Tom");
string expected = "Tom";
string actual = testStack.Peek();
Assert.AreEqual(expected, actual);
}