public async void CalculatesPointsPerHour() { pointsCalculator.Start(0); pointsCalculator.UpdatePoints(10); await Task.Delay(100); Assert.That(Math.Abs(360000 - pointsCalculator.CalculatePointsPerHour()) < 50000, "Was actually " + pointsCalculator.CalculatePointsPerHour() + ", expecting " + 360000); }