runtime/Lib/site-packages/Cython/Tests/TestCythonUtils.py

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'))