=================================== FAILURES ===================================
_______________ TestPriorityTreeOutput.test_period_of_repetition _______________

self = <test_priority.TestPriorityTreeOutput object at 0x7f697a9ed150>

    @given(STREAMS_AND_WEIGHTS)
>   def test_period_of_repetition(self, streams_and_weights):
        """
        The period of repetition of a priority sequence is given by the sum of
        the weights of the streams. Once that many values have been pulled out
        the sequence repeats identically.

test/test_priority.py:492: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
/usr/lib/python2.7/site-packages/hypothesis/core.py:600: in execute
    % (test.__name__, text_repr[0])
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <hypothesis.core.StateForActualGivenExecution object at 0x7f697a9ed510>
message = 'Hypothesis test_period_of_repetition(self=<test_priority.TestPriorityTreeOutput at 0x7f697a9ed150>, streams_and_weigh... (257, 249),\n (10715, 247)]) produces unreliable results: Falsified on the first call but did not on a subsequent one'

    def __flaky(self, message):
        if len(self.falsifying_examples) <= 1:
>           raise Flaky(message)
E           Flaky: Hypothesis test_period_of_repetition(self=<test_priority.TestPriorityTreeOutput at 0x7f697a9ed150>, streams_and_weights=[(29729, 157),
E            (2627, 16),
E            (17000, 17),
E            (13695, 160),
E            (90876124250409049, 71),
E            (23759, 4),
E            (1, 1),
E            (23041, 162),
E            (104, 81),
E            (80, 201),
E            (257, 249),
E            (10715, 247)]) produces unreliable results: Falsified on the first call but did not on a subsequent one

/usr/lib/python2.7/site-packages/hypothesis/core.py:770: Flaky
---------------------------------- Hypothesis ----------------------------------
Falsifying example: test_period_of_repetition(self=<test_priority.TestPriorityTreeOutput at 0x7f697a9ed150>, streams_and_weights=[(29729, 157),
 (2627, 16),
 (17000, 17),
 (13695, 160),
 (90876124250409049, 71),
 (23759, 4),
 (1, 1),
 (23041, 162),
 (104, 81),
 (80, 201),
 (257, 249),
 (10715, 247)])
Unreliable test timings! On an initial run, this test took 308.50ms, which exceeded the deadline of 200.00ms, but on a subsequent run it took 169.27 ms, which did not. If you expect this sort of variability in your test timings, consider turning deadlines off for this test by setting deadline=None.

You can reproduce this example by temporarily adding @reproduce_failure('4.23.4', 'AIUDVOhAnJ8DExSED9ICAITPEHICAGr9n4ID+QKFtrUBBRCxRrQEN7mcAwEBlQAAAQCSAMQHBIG0AKFtASnOUIMGBwBAnsg0AAECAPg+BwMAU7X2Aw==') as a decorator on your test case
==================== 1 failed, 161 passed in 491.49 seconds ====================

Looks like a flaky test :(

*** This bug has been marked as a duplicate of bug 1709800 ***