public void TestRnd() { System.Collections.Generic.List <int> intList = new System.Collections.Generic.List <int>() { 1, 2, 3, 4, 5, 6, 7, 8, 9 }; int[] intArray = new int[9]; int loops = 100; for (int i = 0; i < loops; i++) { int val = intList.Rnd(); intArray[val - 1]++; Assert.AreEqual(true, intList.Contains(val)); } // Weak ass std deviation test float sum1 = 0; foreach (int i in intArray) { sum1 += i; } float mean = sum1 / intArray.Length; Assert.AreEqual(((float)loops) / intList.Count, mean); float sum2 = 0; foreach (int i in intArray) { sum2 += Mathf.Pow(i - mean, 2); } float stdev = Mathf.Sqrt(sum2 / intList.Count); Assert.Less(stdev, mean); Assert.Greater(stdev, 0); }