public void TestUint64()
{
var g = MathRandomGeneratorExtended.NewMathRandomGenerator();
ulong min = 0xFFFFFFFFFFFFFFFF;
ulong max = 0;
for (var i = 0; i < 10000; i++)
{
var r = g.Uint64();
if (r < min)
{
min = r;
}
if (r > max)
{
max = r;
}
}
if (min > 0x1000000000000000)
{
Debug.LogError("Value around lower boundary was not generated");
}
if (max < 0xF000000000000000)
{
Debug.LogError("Value around upper boundary was not generated");
}
}
public void TestMathRandomGenerator()
{
var g = MathRandomGeneratorExtended.NewMathRandomGenerator();
var isLetter = @"^[a-zA-Z]+$";
for (var i = 0; i < 10000; i++)
{
var s = g.GenerateString(10, RandExtended.runesAlpha);
if (s.Length != 10)
{
Debug.LogError("Generator returned invalid length");
}
if (!Regex.IsMatch(s, isLetter))
{
Debug.LogError($"Generator returned unexpected character: {s}");
}
}
}
public void TestIntn()
{
var g = MathRandomGeneratorExtended.NewMathRandomGenerator();
var min = 100;
var max = 0;
for (var i = 0; i < 10000; i++)
{
var r = g.Intn(100);
if (r < 0 || r >= 100)
{
Debug.LogError($"Out of range Intn(100): {r}");
}
if (r < min)
{
min = r;
}
if (r > max)
{
max = r;
}
}
if (min > 1)
{
Debug.LogError("Value around lower boundary was not generated");
}
if (max < 90)
{
Debug.LogError("Value around upper boundary was not generated");
}
}
public void TestRandomGeneratorCollision()
{
var g = MathRandomGeneratorExtended.NewMathRandomGenerator();
var testCases = new Dictionary <string, Func <string> >
{
{ "MathRandom", () => { return(g.GenerateString(10, RandExtended.runesAlpha)); } },
{ "CryptoRandom", () =>
{
var(s, err) = crypto.GenerateCryptoRandomString(10, RandExtended.runesAlpha);
if (err != null)
{
Debug.LogError(err);
}
return(s);
} }
};
const int N = 100;
const int iteration = 100;
foreach (var testCase in testCases)
{
var tc = testCase;
for (var iter = 0; iter < iteration; iter++)
{
var mu = new Mutex();
var rands = new List <string>(N);
for (var i = 0; i < N; i++)
{
Task t1 = Task.Run(() =>
{
var r = tc.Value.Invoke();
mu.WaitOne();
rands.Add(r);
mu.ReleaseMutex();
});
t1.Wait();
}
if (rands.Count != N)
{
Debug.LogError("Failed to generate randoms");
}
for (var i = 0; i < N; i++)
{
for (var j = i + 1; j < N; j++)
{
if (rands[i] == rands[j])
{
Debug.Log($"generateRandString caused collision: {rands[i]} == {rands[j]}");
}
}
}
}
}
}