public void PseudorandomExceptions()
{
Pseudorandom rand = new Pseudorandom(false);
Assert.ThrowsException <ArgumentNullException>(() => rand.NextEnum(null !));
Assert.ThrowsException <ArgumentNullException>(() => rand.NextBytes(null !, 1));
Assert.ThrowsException <ArgumentException>(() => rand.NextInt32SignedRangedUsuallySmall(10, 5));
Assert.ThrowsException <ArgumentException>(() => rand.NextInt64SignedRangedUsuallySmall(10, 5));
Assert.ThrowsException <ArgumentException>(() => rand.NextEnum(typeof(int)));
}
public void PseudorandomSignedAlwaysPositive()
{
int loops = 10000;
Pseudorandom rand;
rand = new Pseudorandom(4387617);
for (int loop = 0; loop < loops; ++loop)
{
int i = rand.NextInt32SignedRangedUsuallySmall(1, int.MaxValue);
Assert.IsTrue(i > 0);
long l = rand.NextInt64SignedRangedUsuallySmall(1, long.MaxValue);
Assert.IsTrue(l > 0);
}
}
public void PseudorandomSignedAlwaysNegative()
{
int loops = 10000;
Pseudorandom rand;
rand = new Pseudorandom(4387617);
for (int loop = 0; loop < loops; ++loop)
{
int i = rand.NextInt32SignedRangedUsuallySmall(int.MinValue, -1);
Assert.IsTrue(i < 0);
long l = rand.NextInt64SignedRangedUsuallySmall(long.MinValue, -1);
Assert.IsTrue(l < 0);
}
}