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PYTHON-2218 Fix race in test_last_write_date

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This commit is contained in:
Shane Harvey 2020-04-29 10:21:30 -07:00
parent 7099e1be8b
commit 07c834ea3e
1 changed files with 12 additions and 6 deletions
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18
test/test_max_staleness.py
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@ -122,15 +122,21 @@ class TestMaxStaleness(unittest.TestCase):
# From max-staleness-tests.rst, "Parse lastWriteDate".
client = rs_or_single_client(heartbeatFrequencyMS=500)
client.pymongo_test.test.insert_one({})
time.sleep(2)
# Wait for the server description to be updated.
time.sleep(1)
server = client._topology.select_server(writable_server_selector)
last_write = server.description.last_write_date
self.assertTrue(last_write)
first = server.description.last_write_date
self.assertTrue(first)
# The first last_write_date may correspond to a internal server write,
# sleep so that the next write does not occur within the same second.
time.sleep(1)
client.pymongo_test.test.insert_one({})
time.sleep(2)
# Wait for the server description to be updated.
time.sleep(1)
server = client._topology.select_server(writable_server_selector)
self.assertGreater(server.description.last_write_date, last_write)
self.assertLess(server.description.last_write_date, last_write + 10)
second = server.description.last_write_date
self.assertGreater(second, first)
self.assertLess(second, first + 10)
@client_context.require_version_max(3, 3)
def test_last_write_date_absent(self):