public void RepoChallengeTestsGetChallengeByLadderID()
        {
            Ladder ld1 = new Ladder {
                LadderID = 0
            };
            Ladder ld2 = new Ladder {
                LadderID = 1
            };
            List <Challenge> cdb = new List <Challenge>
            {
                new Challenge {
                    ChallengeID = 0, Ladder = ld1
                },
                new Challenge {
                    ChallengeID = 1, Ladder = ld1
                },
                new Challenge {
                    ChallengeID = 2, Ladder = ld2
                }
            };

            _challengeSet.Object.AddRange(cdb);
            ConnectMocksToDataStore(cdb);
            List <Challenge> expected = new List <Challenge>
            {
                new Challenge {
                    ChallengeID = 0, Ladder = ld1
                },
                new Challenge {
                    ChallengeID = 1, Ladder = ld1
                }
            };
            List <Challenge> actual = _repo.GetChallengesByLadderID(0);

            CollectionAssert.AreEqual(expected, actual);
        }