public void RandomSmallNumbersTest()
{
Random r = new Random();
for (int i = 0; i < 20; i++)
{
long n = r.Next(1000);
Assert.AreEqual(n ^ (n >> 1), MysteryFunction.Mystery(n), $"mystery({n})");
}
}
public void RandomBigNumbersTest()
{
Random r = new Random();
for (int i = 0; i < 20; i++)
{
long n = (long)(r.NextDouble() * 999999999999999L);
Assert.AreEqual(n ^ (n >> 1), MysteryFunction.Mystery(n), $"mystery({n})");
}
}
public void MysteryTest()
{
Assert.AreEqual(5, MysteryFunction.Mystery(6), "mystery(6) ");
Assert.AreEqual(13, MysteryFunction.Mystery(9), "mystery(9) ");
Assert.AreEqual(26, MysteryFunction.Mystery(19), "mystery(19) ");
int x = 10;
Assert.AreEqual((int)Math.Pow(2, x), MysteryFunction.Mystery((int)Math.Pow(2, x + 1) - 1), string.Format("mystery({0}) ", (int)Math.Pow(2, x + 1) - 1));
Assert.AreEqual(41058636170415, MysteryFunction.Mystery(63337240397621), "mystery(63337240397621) ");
}
public void FunctionNameTest()
{
Random r = new Random();
for (int i = 0; i < 5; i++)
{
long n = r.Next(1000);
Assert.AreEqual((n ^ (n >> 1)), MysteryFunction.Mystery(n), "No,no,no! Find the function before you can see it in the tests ;)");
}
Assert.AreEqual("gray code", MysteryFunction.NameOfMystery().ToLower());
}