public void GetLastPairInCollection()
{
var actually = new PairsCollection<string, int>();
actually.Add("Item", 55);
actually.Add("Item2", 56);
Assert.AreEqual(Tuple.Create("Item2", 56), actually.GetLastPair());
}
public void ShouldNotGetLastPairInEmptyCollection()
{
var actually = new PairsCollection<string, int>();
Assert.AreEqual(null, actually.GetLastPair());
}