gh-116303: Skip test module dependent tests if test modules are unavailable (#117341)

1 files changed, 3 insertions, 1 deletions

diff --git a/Lib/test/test_threading.py b/Lib/test/test_threading.py
index 4414d2b..84a9464 100644
--- a/Lib/test/test_threading.py
+++ b/Lib/test/test_threading.py
@@ -959,6 +959,7 @@ class ThreadTests(BaseTestCase):
 
     @cpython_only
     def test_frame_tstate_tracing(self):
+        _testcapi = import_module("_testcapi")
         # Issue #14432: Crash when a generator is created in a C thread that is
         # destroyed while the generator is still used. The issue was that a
         # generator contains a frame, and the frame kept a reference to the
@@ -986,7 +987,6 @@ class ThreadTests(BaseTestCase):
             threading.settrace(noop_trace)
 
             # Create a generator in a C thread which exits after the call
-            import _testcapi
             _testcapi.call_in_temporary_c_thread(callback)
 
             # Call the generator in a different Python thread, check that the
@@ -1490,6 +1490,7 @@ class SubinterpThreadingTests(BaseTestCase):
 
     @cpython_only
     def test_daemon_threads_fatal_error(self):
+        import_module("_testcapi")
         subinterp_code = f"""if 1:
             import os
             import threading
@@ -1516,6 +1517,7 @@ class SubinterpThreadingTests(BaseTestCase):
                        daemon_allowed=True,
                        daemon=False,
                        ):
+        import_module("_testinternalcapi")
         subinterp_code = textwrap.dedent(f"""
             import test.support
             import threading