code: def test_capi_normalize_path(self):
      if os.name == "nt":
          raise unittest.SkipTest("Windows has its own helper for this")
      else:
          from test.test_posixpath import PosixPathTest as posixdata
  
          tests = posixdata.NORMPATH_CASES
      for filename, expected in tests:
          if not os.path.isabs(filename):
              continue
          with self.subTest(filename):
              result = _testcapi.normalize_path(filename)
              self.assertEqual(
                  result,
                  expected,
                  msg=f"input: {filename!r} expected output: {expected!r}",
              )
  
imports: import os
  import os.path
  import unittest
  from test.support import import_helper
label_desc: Use image node_id 1 for calling the PathTests obj's underlying member method code with example usage: obj.test_capi_normalize_path() without return types