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[2.7] bpo-30850: test_bsddb3 tolerates smaller timeout on Windows #2840

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Merged
vstinner merged 1 commit into from
Jul 24, 2017
Merged

[2.7] bpo-30850: test_bsddb3 tolerates smaller timeout on Windows #2840

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11 changes: 9 additions & 2 deletions 11 Lib/bsddb/test/test_lock.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@
TestCases for testing the locking sub-system.
"""

import sys
import time

import unittest
Expand All @@ -10,7 +11,6 @@

if have_threads :
from threading import Thread
import sys
if sys.version_info[0] < 3 :
from threading import currentThread
else :
Expand Down Expand Up @@ -129,7 +129,14 @@ def deadlock_detection() :
end_time=time.time()
deadlock_detection.end=True
# Floating point rounding
self.assertGreaterEqual(end_time-start_time, 0.0999)
if sys.platform == 'win32':
# bpo-30850: On Windows, tolerate 50 ms whereas 100 ms is expected.
# The lock sometimes times out after only 58 ms. Windows clocks
# have a bad resolution and bad accuracy.
min_dt = 0.050
else:
min_dt = 0.0999
self.assertGreaterEqual(end_time-start_time, min_dt)
self.env.lock_put(lock)
t.join()

Expand Down
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