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-rw-r--r--Lib/test/test_asyncio/test_base_events.py15
1 files changed, 7 insertions, 8 deletions
diff --git a/Lib/test/test_asyncio/test_base_events.py b/Lib/test/test_asyncio/test_base_events.py
index 1db7723..72f5c8a 100644
--- a/Lib/test/test_asyncio/test_base_events.py
+++ b/Lib/test/test_asyncio/test_base_events.py
@@ -116,18 +116,17 @@ class BaseEventLoopTests(unittest.TestCase):
self.loop.stop()
self.loop._process_events = unittest.mock.Mock()
- delay = 0.1
-
- when = self.loop.time() + delay
+ when = self.loop.time() + 0.1
self.loop.call_at(when, cb)
t0 = self.loop.time()
self.loop.run_forever()
dt = self.loop.time() - t0
-
- self.assertGreaterEqual(dt, delay - self.loop._granularity, dt)
- # tolerate a difference of +800 ms because some Python buildbots
- # are really slow
- self.assertLessEqual(dt, 0.9, dt)
+ self.assertTrue(0.09 <= dt <= 0.9,
+ # Issue #20452: add more info in case of failure,
+ # to try to investigate the bug
+ (dt,
+ self.loop._granularity,
+ time.get_clock_info('monotonic')))
def test_run_once_in_executor_handle(self):
def cb():