bpo-40275: Use new test.support helper submodules in tests (GH-21219)
diff --git a/Lib/test/test_aifc.py b/Lib/test/test_aifc.py
index 5a95099..fb6da41 100644
--- a/Lib/test/test_aifc.py
+++ b/Lib/test/test_aifc.py
@@ -1,4 +1,6 @@
-from test.support import check_no_resource_warning, findfile, TESTFN, unlink
+from test.support import findfile
+from test.support.os_helper import TESTFN, unlink
+from test.support.warnings_helper import check_no_resource_warning
import unittest
from unittest import mock
from test import audiotests