Skip test on WASI

Author: vstinner

Lib/test/test_tracemalloc.py

@@ -7,8 +7,9 @@
 from test.support.script_helper import (assert_python_ok, assert_python_failure,
                                         interpreter_requires_environment)
 from test import support
-from test.support import os_helper
 from test.support import force_not_colorized
+from test.support import os_helper
+from test.support import threading_helper
 
 try:
     import _testcapi
@@ -952,7 +953,6 @@ def check_env_var_invalid(self, nframe):
             return
         self.fail(f"unexpected output: {stderr!a}")
 
-
     def test_env_var_invalid(self):
         for nframe in INVALID_NFRAME:
             with self.subTest(nframe=nframe):
@@ -1102,6 +1102,7 @@ def test_stop_untrack(self):
             self.untrack()
 
     @unittest.skipIf(_testcapi is None, 'need _testcapi')
+    @threading_helper.requires_working_threading()
     def test_tracemalloc_track_race(self):
         # gh-128679: Test fix for tracemalloc.stop() race condition
         _testcapi.tracemalloc_track_race()