public void AccurateRandom_Next0()
{
var rng0 = new AccurateRandom(new ConstRandom(0));
Assert.AreEqual(0, rng0.Next());
var rng1 = new AccurateRandom(new ConstRandom(uint.MaxValue - 1));
Assert.AreEqual(int.MaxValue - 1, rng1.Next());
}
public void AccurateRandom_NextDouble()
{
var rng0 = new AccurateRandom(new ConstRandom(0));
Assert.AreEqual(0, rng0.NextDouble());
var rng1 = new AccurateRandom(new ConstRandom(uint.MaxValue));
Assert.AreEqual(BitConverter.Int64BitsToDouble(0x3FEFFFFFFFFFFFFFL), rng1.NextDouble());
}
public void AccurateRandom_Next2()
{
var rng0 = new AccurateRandom(new ConstRandom(0));
Assert.AreEqual(-1, rng0.Next(-1, 1));
Assert.AreEqual(int.MinValue, rng0.Next(int.MinValue, int.MaxValue));
var rng1 = new AccurateRandom(new ConstRandom(uint.MaxValue));
Assert.AreEqual(0, rng1.Next(-1, 1));
Assert.AreEqual(0x3FFFFFFF + int.MinValue, rng1.Next(int.MinValue, (int)(0x40000000L + int.MinValue)));
}
public void AccurateRandom_Next1()
{
var rng0 = new AccurateRandom(new ConstRandom(0));
Assert.AreEqual(0, rng0.Next(1));
Assert.AreEqual(0, rng0.Next(3));
Assert.AreEqual(0, rng0.Next(7));
Assert.AreEqual(0, rng0.Next(17));
var rng1 = new AccurateRandom(new ConstRandom(uint.MaxValue));
Assert.AreEqual(0, rng1.Next(1));
Assert.AreEqual(7, rng1.Next(8));
Assert.AreEqual(31, rng1.Next(32));
Assert.AreEqual(0x3FFFFFFF, rng1.Next(0x40000000));
}
public void AccurateRandom_FullPrecisionDouble_c0o1()
{
Random bits;
bits = new ConstRandom(1, 0, 0, 0);
Assert.AreEqual(BitConverter.Int64BitsToDouble(0x3FE0000000000000L), AccurateRandom.FullPrecisionDouble_c0o1(bits));
bits = new ConstRandom(1, 0, 0xFFFFFFFF, 0xFFFFFFFF);
Assert.IsTrue(1 > AccurateRandom.FullPrecisionDouble_c0o1(bits));
Assert.AreEqual(BitConverter.Int64BitsToDouble(0x3FEFFFFFFFFFFFFFL), AccurateRandom.FullPrecisionDouble_c0o1(bits));
bits = new ConstRandom(Enumerable.Repeat(0U, 30).Append(0U, 0x80000000U, 0U, 0U).ToArray());
Assert.AreEqual(BitConverter.Int64BitsToDouble(0x0000000000000000), AccurateRandom.FullPrecisionDouble_c0o1(bits));
bits = new ConstRandom(Enumerable.Repeat(0U, 30).Append(0U, 0x40000000U, 0U, 0U).ToArray());
Assert.AreEqual(BitConverter.Int64BitsToDouble(0x0000000000000000), AccurateRandom.FullPrecisionDouble_c0o1(bits));
bits = new ConstRandom(Enumerable.Repeat(0U, 30).Append(0U, 0x40000000U, 0xFFFFFFFFU, 0xFFFFFFFFU).ToArray());
Assert.IsTrue(0 < AccurateRandom.FullPrecisionDouble_c0o1(bits));
Assert.AreEqual(BitConverter.Int64BitsToDouble((1L << 52) - 1), AccurateRandom.FullPrecisionDouble_c0o1(bits));
}