public void Pow3Tests()
{
var pow3 = new MathSolution();
Assert.IsFalse(pow3.IsPowerOfThree(2147483647));
Assert.IsTrue(pow3.IsPowerOfThree(27));
Assert.IsTrue(pow3.IsPowerOfThree(9 * 27 * 81 * 81 * 9));
}
public void TestFizzBuzz()
{
var fb = new MathSolution();
var result = fb.FizzBuzz(1);
Assert.AreEqual(1, result.Count);
Assert.AreEqual("1", result[0]);
}
public void ReverseDigitsTest()
{
var sln = new MathSolution();
Assert.AreEqual(123, sln.Reverse(321));
Assert.AreEqual(-1123, sln.Reverse(-3211));
Assert.AreEqual(0, sln.Reverse(int.MaxValue));
}
public void RomanTests()
{
var roman = new MathSolution();
Assert.AreEqual(3, roman.RomanToInt("III"));
Assert.AreEqual(4, roman.RomanToInt("IV"));
Assert.AreEqual(58, roman.RomanToInt("LVIII"));
Assert.AreEqual(1994, roman.RomanToInt("MCMXCIV"));
}
public void Count1s()
{
var ones = new MathSolution();
Assert.AreEqual(1, ones.HammingWeight(128));
Assert.AreEqual(7, ones.HammingWeight(127));
Assert.AreEqual(0, ones.HammingWeight(0));
Assert.AreEqual(1, ones.HammingWeight(8));
Assert.AreEqual(2, ones.HammingWeight(9));
}
public void GetPrimeCount()
{
var prime = new MathSolution();
Assert.AreEqual(8, prime.CountPrimes(20));
Assert.AreEqual(168, prime.CountPrimes(1000));
Assert.AreEqual(1229, prime.CountPrimes(10000));
Assert.AreEqual(41537, prime.CountPrimes(499979));
Assert.AreEqual(1, prime.CountPrimes(3));
Assert.AreEqual(0, prime.CountPrimes(2));
Assert.AreEqual(4, prime.CountPrimes(10));
Assert.AreEqual(2, prime.CountPrimes(5));
Assert.AreEqual(5, prime.CountPrimes(13));
}
public void TestFizzBuzzCompare()
{
var fb = new MathSolution();
for (int i = 1; i < 100000000; i *= 2)
{
var now = DateTime.Now;
fb.FizzBuzz(i);
var ms = DateTime.Now.Subtract(now).TotalMilliseconds;
now = DateTime.Now;
fb.FizzBuzzSimple(i);
var ms2 = DateTime.Now.Subtract(now).TotalMilliseconds;
Console.WriteLine("{0} FizzBuzz: {1}, Simple: {2}", i, ms, ms2);
}
}