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authorAntoine Pitrou <pitrou@free.fr>2017-06-30 08:01:05 (GMT)
committerGitHub <noreply@github.com>2017-06-30 08:01:05 (GMT)
commit729780a810bbcb12b245a1b652302a601fc9f6fd (patch)
tree98182b9933e15696fbf1dc97364f6e048c219600 /Lib/test/test_signal.py
parent42bc8beadd49f60cc52fdc397897b3bd81640406 (diff)
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bpo-30807: signal.setitimer() may disable the timer by mistake (#2493)
* bpo-30807: signal.setitimer() may disable the timer by mistake * Add NEWS blurb
Diffstat (limited to 'Lib/test/test_signal.py')
-rw-r--r--Lib/test/test_signal.py9
1 files changed, 9 insertions, 0 deletions
diff --git a/Lib/test/test_signal.py b/Lib/test/test_signal.py
index 0ddfe36..0e1d067 100644
--- a/Lib/test/test_signal.py
+++ b/Lib/test/test_signal.py
@@ -608,6 +608,15 @@ class ItimerTest(unittest.TestCase):
# and the handler should have been called
self.assertEqual(self.hndl_called, True)
+ def test_setitimer_tiny(self):
+ # bpo-30807: C setitimer() takes a microsecond-resolution interval.
+ # Check that float -> timeval conversion doesn't round
+ # the interval down to zero, which would disable the timer.
+ self.itimer = signal.ITIMER_REAL
+ signal.setitimer(self.itimer, 1e-6)
+ time.sleep(1)
+ self.assertEqual(self.hndl_called, True)
+
class PendingSignalsTests(unittest.TestCase):
"""