public void PrimeDeciders_AgreeWithKnownOutput()
{
var sieveDecider = new SieveOfEratosthenesDecider(2);
var sieveProvider = new SieveOfEratosthenesProvider(2);
var sieveFactorizer = new SieveOfEratosthenesFactorizer(2);
var trialDivisionDecider = new TrialDivisionDecider(2);
for (int n = 0; n <= 2; ++n)
{
Assert.AreEqual(_primesUpTo2.Contains(n), sieveDecider.IsPrime(n));
Assert.AreEqual(_primesUpTo2.Contains(n), sieveProvider.IsPrime(n));
Assert.AreEqual(_primesUpTo2.Contains(n), sieveFactorizer.IsPrime(n));
Assert.AreEqual(_primesUpTo2.Contains(n), trialDivisionDecider.IsPrime(n));
Assert.AreEqual(_primesUpTo2.Contains(n), NaivePrimeDeciderProviderFactorizer.IsPrime(n));
}
sieveDecider = new SieveOfEratosthenesDecider(49);
sieveProvider = new SieveOfEratosthenesProvider(49);
sieveFactorizer = new SieveOfEratosthenesFactorizer(49);
trialDivisionDecider = new TrialDivisionDecider(49);
for (int n = 0; n <= 49; ++n)
{
Assert.AreEqual(_primesUpTo49.Contains(n), sieveDecider.IsPrime(n));
Assert.AreEqual(_primesUpTo49.Contains(n), sieveProvider.IsPrime(n));
Assert.AreEqual(_primesUpTo49.Contains(n), sieveFactorizer.IsPrime(n));
Assert.AreEqual(_primesUpTo49.Contains(n), trialDivisionDecider.IsPrime(n));
Assert.AreEqual(_primesUpTo49.Contains(n), NaivePrimeDeciderProviderFactorizer.IsPrime(n));
}
}
public void GetPrimes_AgreesWithNaiveProvider()
{
for (int n = 1000; n <= 10000; n += 1000)
{
var sieveProvider = new SieveOfEratosthenesProvider(n);
Assert.IsTrue(NaivePrimeDeciderProviderFactorizer.GetPrimes(n).SequenceEqual(sieveProvider.Primes));
}
}
public void GetPrimes_AgreesWithKnownOutput()
{
var sieveProvider = new SieveOfEratosthenesProvider(2);
Assert.IsTrue(_primesUpTo2.SequenceEqual(sieveProvider.Primes));
Assert.IsTrue(_primesUpTo2.SequenceEqual(NaivePrimeDeciderProviderFactorizer.GetPrimes(2)));
sieveProvider = new SieveOfEratosthenesProvider(49);
Assert.IsTrue(_primesUpTo49.SequenceEqual(sieveProvider.Primes));
Assert.IsTrue(_primesUpTo49.SequenceEqual(NaivePrimeDeciderProviderFactorizer.GetPrimes(49)));
}
public void GetDistinctPrimeFactors_AgreesWithNaiveFactorizer()
{
var sieveFactorizer = new SieveOfEratosthenesFactorizer(3481);
var trialDivisionFactorizer = new TrialDivisionFactorizer(3481);
for (int n = 0; n <= 3481; ++n)
{
CollectionAssert.AreEquivalent(
NaivePrimeDeciderProviderFactorizer.GetDistinctPrimeFactors(n).ToArray(),
sieveFactorizer.GetDistinctPrimeFactors(n).ToArray());
CollectionAssert.AreEquivalent(
NaivePrimeDeciderProviderFactorizer.GetDistinctPrimeFactors(n).ToArray(),
trialDivisionFactorizer.GetDistinctPrimeFactors(n).ToArray());
}
}
public void GetDistinctPrimeFactors_AgreesWithKnownOutput()
{
var sieveFactorizer = new SieveOfEratosthenesFactorizer(1000);
var trialDivisionFactorizer = new TrialDivisionFactorizer(1000);
foreach (var numberPrimeFactorsPair in _numberPrimeFactorsPairs)
{
int number = numberPrimeFactorsPair.Item1;
int[] distinctPrimeFactors = numberPrimeFactorsPair.Item2.Distinct().ToArray();
CollectionAssert.AreEquivalent(distinctPrimeFactors, sieveFactorizer.GetDistinctPrimeFactors(number).ToArray());
CollectionAssert.AreEquivalent(distinctPrimeFactors, trialDivisionFactorizer.GetDistinctPrimeFactors(number).ToArray());
CollectionAssert.AreEquivalent(distinctPrimeFactors, NaivePrimeDeciderProviderFactorizer.GetDistinctPrimeFactors(number).ToArray());
}
}
public void PrimeDeciders_AgreeWithNaiveDecider()
{
for (int i = 1000; i <= 10000; i += 1000)
{
var sieveDecider = new SieveOfEratosthenesDecider(i);
var sieveProvider = new SieveOfEratosthenesProvider(i);
var sieveFactorizer = new SieveOfEratosthenesFactorizer(i);
var trialDivisionDecider = new TrialDivisionDecider(i);
for (int n = 0; n <= i; ++n)
{
Assert.AreEqual(NaivePrimeDeciderProviderFactorizer.IsPrime(n), sieveDecider.IsPrime(n));
Assert.AreEqual(NaivePrimeDeciderProviderFactorizer.IsPrime(n), sieveProvider.IsPrime(n));
Assert.AreEqual(NaivePrimeDeciderProviderFactorizer.IsPrime(n), sieveFactorizer.IsPrime(n));
Assert.AreEqual(NaivePrimeDeciderProviderFactorizer.IsPrime(n), trialDivisionDecider.IsPrime(n));
}
}
}
