public void ShouldBeAbleToReturnIdWhenAddingReward()
{
RewardModel testReward = new RewardModel
{
Title = "1",
Description = "1"
};
InMemoryStorage storage = new InMemoryStorage();
int expectedId = 6;
int actualId = storage.AddReward(testReward);
Assert.Equal(expectedId, actualId);
}
public void ShouldBeAbleToThrowExeptionWhenRewardIsNull()
{
InMemoryStorage storage = new InMemoryStorage();
Assert.Throws <ArgumentNullException>(() => storage.AddReward(null));
}