old_contents: import unittest
  
  from sieve import sieve
  
  
  class SieveTest(unittest.TestCase):
      def test_a_few_primes(self):
          expected = [2, 3, 5, 7]
          self.assertEqual(expected, sieve(10))
  
      def test_prime_limit(self):
          expected = [2, 3, 5, 7]
          self.assertEqual(expected, sieve(7))
  
      def test_primes(self):
          expected = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47,
                      53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109,
                      113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179,
                      181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241,
                      251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313,
                      317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389,
                      397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461,
                      463, 467, 479, 487, 491, 499, 503, 509, 521, 523, 541, 547,
                      557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617,
                      619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691,
                      701, 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773,
                      787, 797, 809, 811, 821, 823, 827, 829, 839, 853, 857, 859,
                      863, 877, 881, 883, 887, 907, 911, 919, 929, 937, 941, 947,
                      953, 967, 971, 977, 983, 991, 997]
          self.assertEqual(expected, sieve(1000))
  
  
  if __name__ == '__main__':
      unittest.main()
  
new_contents: import unittest
  
  from sieve import sieve
  
  
  # test cases adapted from `x-common//canonical-data.json` @ version: 1.0.0
  
  class SieveTest(unittest.TestCase):
      def test_no_primes_under_two(self):
          self.assertEqual(sieve(1), [])
  
      def test_find_first_prime(self):
          self.assertEqual(sieve(2), [2])
  
      def test_find_primes_up_to_10(self):
          self.assertEqual(sieve(10), [2, 3, 5, 7])
  
      def test_limit_is_prime(self):
          self.assertEqual(sieve(13), [2, 3, 5, 7, 11, 13])
  
      def test_find_primes_up_to_1000(self):
          self.assertEqual(
              sieve(1000), [
                  2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59,
                  61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127,
                  131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191,
                  193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257,
                  263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331,
                  337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401,
                  409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467,
                  479, 487, 491, 499, 503, 509, 521, 523, 541, 547, 557, 563,
                  569, 571, 577, 587, 593, 599, 601, 607, 613, 617, 619, 631,
                  641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701, 709,
                  719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797,
                  809, 811, 821, 823, 827, 829, 839, 853, 857, 859, 863, 877,
                  881, 883, 887, 907, 911, 919, 929, 937, 941, 947, 953, 967,
                  971, 977, 983, 991, 997
              ])
  
  
  if __name__ == '__main__':
      unittest.main()
  
subject: Update test cases (#444)