public void PrimesTest2()
{
IEnumerable <long> expected = new long[] { 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31 };
IEnumerable <long> actual = SpecializedSets.Primes(31);
Assert.IsTrue(expected.SequenceEqual(actual));
}
public void FactorialsTest()
{
IEnumerable <long> expected = new long[] { 1, 2, 6, 24, 120, 720, 5040, 40320, 362880, 3628800 };
IEnumerable <long> actual = SpecializedSets.Factorials().ToArray().Take(10); //Force calculating all (19) factorials
Assert.IsTrue(expected.SequenceEqual(actual));
}
public void FibsTest()
{
IEnumerable <long> expected = new long[] { 1, 2, 3, 5, 8, 13, 21, 34, 55, 89 };
IEnumerable <long> actual = SpecializedSets.Fibs().ToArray().Take(10); //Force calculating all (90) fibs
Assert.IsTrue(expected.SequenceEqual(actual));
}
public void IsPrimeTest()
{
long input = 1;
bool expected = false;
bool actual = SpecializedSets.IsPrime(input);
Assert.IsTrue(actual == expected);
}
public void ToDigitsTest()
{
long input = 12345678;
IEnumerable <int> expected = new int[] { 1, 2, 3, 4, 5, 6, 7, 8 };
IEnumerable <int> actual = SpecializedSets.ToDigits(input);
Assert.IsTrue(expected.SequenceEqual(actual));
}
public void ToNumberTest()
{
int[] digits = new int[] { 1, 2, 3, 4, 5, 6 };
long expected = 654321;
long actual = SpecializedSets.ToNumber(digits);
Assert.IsTrue(expected == actual);
}
public void SumOfDigitsTest2()
{
long value = 123456;
long expected = 21;
int actual = SpecializedSets.SumOfDigits(value);
Assert.IsTrue(expected == actual);
}
public void IsPromeTest()
{
bool actual;
actual = SpecializedSets.IsPrime(1);
Assert.IsFalse(actual);
actual = SpecializedSets.IsPrime(2);
Assert.IsTrue(actual);
actual = SpecializedSets.IsPrime(3);
Assert.IsTrue(actual);
actual = SpecializedSets.IsPrime(4);
Assert.IsFalse(actual);
}
public void DivisorsTest()
{
IEnumerable <long> expected;
IEnumerable <long> actual;
expected = new long[] { 1, 2, 2823439, 5646878 };
actual = SpecializedSets.Divisors(5646878).OrderBy(x => x);
Assert.IsTrue(expected.SequenceEqual(actual));
expected = new long[] { 1, 3, 7, 9, 21, 63, 89633, 268899, 627431, 806697, 1882293, 5646879 };
actual = SpecializedSets.Divisors(5646879).OrderBy(x => x);
Assert.IsTrue(expected.SequenceEqual(actual));
expected = new long[] { 1, 3, 9, 19, 57, 171, 3829603, 11488809, 34466427, 72762457, 218287371, 654862113 };
actual = SpecializedSets.Divisors(654862113).OrderBy(x => x);
Assert.IsTrue(expected.SequenceEqual(actual));
}
public void PrimeFactorsTest()
{
IEnumerable <long> expected;
IEnumerable <long> actual;
expected = new long[] { 233, 577, 4871 };
actual = SpecializedSets.PrimeFactors(654862111);
Assert.IsTrue(expected.SequenceEqual(actual));
expected = new long[] { 2, 37, 553093 };
actual = SpecializedSets.PrimeFactors(654862112);
Assert.IsTrue(expected.SequenceEqual(actual));
expected = new long[] { 2, 3, 11, 17 };
actual = SpecializedSets.PrimeFactors(57222);
Assert.IsTrue(expected.SequenceEqual(actual));
}
public void PrimeDivisorsTest()
{
IEnumerable <long> expected;
IEnumerable <long> actual;
expected = new long[] { 233, 577, 4871 };
actual = SpecializedSets.PrimeDivisors(654862111);
Assert.IsTrue(expected.SequenceEqual(actual));
expected = new long[] { 2, 2, 2, 2, 2, 37, 553093 };
actual = SpecializedSets.PrimeDivisors(654862112);
Assert.IsTrue(expected.SequenceEqual(actual));
expected = new long[] { 3, 31, 101, 697181 };
actual = SpecializedSets.PrimeDivisors(6548621133);
Assert.IsTrue(expected.SequenceEqual(actual));
expected = new long[] { 2, 1429, 229133 };
actual = SpecializedSets.PrimeDivisors(654862114);
Assert.IsTrue(expected.SequenceEqual(actual));
}
