[TIP] problems w/ coverage and threads?

[Dirk Pranke]

Hi Ned,

Thanks for the response. I've verified that if I pull the code into a
function called by run(), it works for me as well, which gives me a
pretty good workaround in the meantime.

Would it be helpful for me to file this as a bug?

-- Dirk

On Tue, Aug 24, 2010 at 7:43 PM, Ned Batchelder <ned at nedbatchelder.com> wrote:
>  Hi Dirk,
>
> Indeed I can reproduce this.  I don't understand why yet, but the run()
> method is not recorded by the trace function, but functions it calls are.
>  Odd.  I'll work more on it..
>
> --Ned.
>
> On 8/24/2010 2:36 PM, Dirk Pranke wrote:
>>
>> Hi all,
>>
>> I'm running the following program under coverage on a Mac Pro running
>> Snow Loepard (using "coverage run threads_unittest.py", python 2.5,
>> coverage 3.3.1) and getting no coverage numbers from the
>> TestThread.run()
>> method. Also, if I try to mark it ignored with "# pragma: no cover",
>> that seems to have no effect.
>>
>> I would have thought that both of these things would work. Any ideas?
>>
>> -- Dirk
>>
>> % cat threads_unittest.py
>>
>> import Queue
>> import threading
>> import unittest
>>
>> class TestThread(threading.Thread):
>>     def __init__(self, started_queue, stopping_queue):
>>         threading.Thread.__init__(self)
>>         self._started_queue = started_queue
>>         self._stopping_queue = stopping_queue
>>
>>     def run(self):
>>         print "starting thread"
>>         self._started_queue.put('')
>>         msg = self._stopping_queue.get()
>>         print "exiting thread"
>>
>> class ThreadTest(unittest.TestCase):
>>     def test_threads(self):
>>         starting_queue = Queue.Queue()
>>         stopping_queue = Queue.Queue()
>>         thd = TestThread(starting_queue, stopping_queue)
>>         stopping_queue.put('')
>>         thd.start()
>>         starting_queue.get()
>>         thd.join()
>>         self.assertTrue(True)
>>
>> if __name__ == '__main__':
>>     unittest.main()
>> %
>>
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>