public void PostChampionTest()
{
var champion = new Champion();
champion.Name = "Akali";
champion.Difficulty = 3;
champion.Class = "Slayer";
var result = controller.PostChampion(champion) as OkNegotiatedContentResult <Champion>;
Assert.IsNotNull(result);
Assert.AreEqual(result.Content.Name, champion.Name);
}