public async void TestLeaderBoardCalculation()
        {
            // Setup
            var totalTimes = new[] { 2.2, 1.1, 3.3, 0.0, 0.0 };

            var runDaoMock = new Mock <IRunDao>();

            runDaoMock.Setup(d => d.GetAllRunsForRace(It.IsAny <Race>(), It.IsAny <int>()))
            .Returns(Task.FromResult(
                         totalTimes.Select(t => new Run {
                TotalTime = t
            })
                         ));

            var daoProvider = DaoProviderHelper.GetPartialDaoProvider(runDao: runDaoMock.Object);
            var runService  = new RunService(daoProvider, new SimulatorRaceClock());

            // Execute
            var leaderBoard = (await runService.GetLeaderBoard(null, 1)).ToArray();

            // Assert
            Assert.Equal(totalTimes.Length, leaderBoard.Length);
            Assert.Equal(1.1, leaderBoard[0].TotalTime);
            Assert.Equal(2.2, leaderBoard[1].TotalTime);
            Assert.Equal(3.3, leaderBoard[2].TotalTime);
            Assert.Equal(0.0, leaderBoard[3].TotalTime);
            Assert.Equal(0.0, leaderBoard[4].TotalTime);
        }