old_contents: import unittest
  
  from ..Utils import build_hex_version
  
  class TestCythonUtils(unittest.TestCase):
      def test_build_hex_version(self):
          self.assertEqual('0x001D00A1', build_hex_version('0.29a1'))
          self.assertEqual('0x001D00A1', build_hex_version('0.29a1'))
          self.assertEqual('0x001D03C4', build_hex_version('0.29.3rc4'))
          self.assertEqual('0x001D00F0', build_hex_version('0.29'))
          self.assertEqual('0x040000F0', build_hex_version('4.0'))
  
new_contents: import unittest
  
  from ..Utils import build_hex_version
  
  class TestCythonUtils(unittest.TestCase):
      def test_build_hex_version(self):
          self.assertEqual('0x001D00A1', build_hex_version('0.29a1'))
          self.assertEqual('0x001D03C4', build_hex_version('0.29.3rc4'))
          self.assertEqual('0x001D00F0', build_hex_version('0.29'))
          self.assertEqual('0x040000F0', build_hex_version('4.0'))
  
subject: Remove accidentally duplicated test code.