From 37bdd2221ce3607a81d5d7fafc4603d95ca3e8cb Mon Sep 17 00:00:00 2001 From: "Miss Islington (bot)" <31488909+miss-islington@users.noreply.github.com> Date: Mon, 19 Jul 2021 04:15:58 -0700 Subject: bpo-44645: Check for interrupts on any potentially backwards edge (GH-27216) (GH-27235) (cherry picked from commit d09c13417890427f829e3df297beb0e27133f8f4) Co-authored-by: Mark Shannon --- Lib/test/test_threading.py | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'Lib/test/test_threading.py') diff --git a/Lib/test/test_threading.py b/Lib/test/test_threading.py index f648a8b2bc..23fe2d3f4d 100644 --- a/Lib/test/test_threading.py +++ b/Lib/test/test_threading.py @@ -1604,6 +1604,31 @@ class InterruptMainTests(unittest.TestCase): self.assertRaises(ValueError, _thread.interrupt_main, signal.NSIG) self.assertRaises(ValueError, _thread.interrupt_main, 1000000) + @threading_helper.reap_threads + def test_can_interrupt_tight_loops(self): + cont = [True] + started = [False] + interrupted = [False] + + def worker(started, cont, interrupted): + iterations = 100_000_000 + started[0] = True + while cont[0]: + if iterations: + iterations -= 1 + else: + return + pass + interrupted[0] = True + + t = threading.Thread(target=worker,args=(started, cont, interrupted)) + t.start() + while not started[0]: + pass + cont[0] = False + t.join() + self.assertTrue(interrupted[0]) + class AtexitTests(unittest.TestCase): -- cgit v1.2.1