bpo-46425: fix direct invocation of test_fileutils and test_zoneinfo (GH-30792)

Author: sobolevn

Lib/test/test_fileutils.py

@@ -15,7 +15,7 @@ def test_capi_normalize_path(self):
         if os.name == 'nt':
             raise unittest.SkipTest('Windows has its own helper for this')
         else:
-            from .test_posixpath import PosixPathTest as posixdata
+            from test.test_posixpath import PosixPathTest as posixdata
             tests = posixdata.NORMPATH_CASES
         for filename, expected in tests:
             if not os.path.isabs(filename):

Lib/test/test_zoneinfo/test_zoneinfo.py

@@ -17,8 +17,8 @@
 from datetime import date, datetime, time, timedelta, timezone
 from functools import cached_property
 
-from . import _support as test_support
-from ._support import OS_ENV_LOCK, TZPATH_TEST_LOCK, ZoneInfoTestBase
+from test.test_zoneinfo import _support as test_support
+from test.test_zoneinfo._support import OS_ENV_LOCK, TZPATH_TEST_LOCK, ZoneInfoTestBase
 from test.support.import_helper import import_module
 
 lzma = import_module('lzma')
@@ -2107,3 +2107,7 @@ def _Pacific_Kiritimati():
 
     _ZONEDUMP_DATA = None
     _FIXED_OFFSET_ZONES = None
+
+
+if __name__ == '__main__':
+    unittest.main()