




'''simple docstring'''


def 	snake_case_					(UpperCamelCase :						str   ):





							'''simple docstring'''


							return "".join(chr(ord(UpperCamelCase   ) - 32   ) if '''a''' <= char <= '''z''' else char for char in word   )


if __name__ == "__main__":
				from doctest import testmod

				testmod()







'''simple docstring'''


import math
import unittest
def 	snake_case_					(UpperCamelCase :						int   ):





							'''simple docstring'''


							assert isinstance(UpperCamelCase				,		UpperCamelCase   ) and (
							    number >= 0
							), "'number' must been an int and positive"

							if 1 < number < 4:
														# 2 and 3 are primes
														return True
							elif number < 2 or number % 2 == 0 or number % 3 == 0:
														# Negatives, 0, 1, all even numbers, all multiples of 3 are not primes
														return False

							# All primes number are in format of 6k +/- 1
							for i in range(5				,		int(math.sqrt(UpperCamelCase   ) + 1   )				,		6   ):
														if number % i == 0 or number % (i + 2) == 0:
																					return False
							return True

class     A					(	unittest.TestCase					):







							def      __lowerCAmelCase    (						self :						Union[str, Any]      )    ->							Optional[Any]:


														"""simple docstring"""


														self.assertTrue(is_prime(2      )      )
														self.assertTrue(is_prime(3      )      )
														self.assertTrue(is_prime(5      )      )
														self.assertTrue(is_prime(7      )      )
														self.assertTrue(is_prime(11      )      )
														self.assertTrue(is_prime(13      )      )
														self.assertTrue(is_prime(17      )      )
														self.assertTrue(is_prime(19      )      )
														self.assertTrue(is_prime(23      )      )
														self.assertTrue(is_prime(29      )      )







							def      __lowerCAmelCase    (						self :						Any      )    ->							Dict:


														"""simple docstring"""


														with self.assertRaises(lowerCAmelCase_      ):
																					is_prime(-19      )
														self.assertFalse(
														    is_prime(0      )							,    '''Zero doesn\'t have any positive factors, primes must have exactly two.'''							,    )
														self.assertFalse(
														    is_prime(1      )							,    '''One only has 1 positive factor, primes must have exactly two.'''							,    )
														self.assertFalse(is_prime(2 * 2      )      )
														self.assertFalse(is_prime(2 * 3      )      )
														self.assertFalse(is_prime(3 * 3      )      )
														self.assertFalse(is_prime(3 * 5      )      )
														self.assertFalse(is_prime(3 * 5 * 7      )      )


if __name__ == "__main__":
				unittest.main()

