public void FirstPrimeWhichHasDesiredSizeOfFamilyByReplacingSomeDigitsBySameNumber_ReturnsCorrectResult(int desiredSizeOfFamily, long expectedPrime) { PrimeHelper.FirstPrimeWhichHasDesiredSizeOfFamilyByReplacingSomeDigitsBySameNumber(desiredSizeOfFamily).Should().Be(expectedPrime); }