On Sat, Oct 3, 2009 at 1:50 PM, Bjorn Tillenius <[email protected]> wrote:
On Fri, Oct 02, 2009 at 02:06:58PM -0500, Edwin Grubbs wrote:I am in the process of converting the registry windmill tests to use ./bin/test, and I am having problems with sporadic LayerIsolationErrors. I put sleep() calls in the tearDown(), which reduced the frequency of errors from 10 out of 20 to 1 or 2 out of 20. I'm already using a 9 second sleep, so I think there must be a better way to prevent the errors. Error in test lp.registry.windmill.tests.test_timeline_graph.TestTimelineGraph.test_series_timeline_graph Traceback (most recent call last): File "/home/egrubbs/canonical/lp-branches/bug-430708-registry-windmill-layer/lib/canonical/testing/layers.py", line 394, in flagTestIsolationFailure raise LayerIsolationError(message) LayerIsolationError: Test left new live threads: [<Thread(Thread-285, started daemon)>] The above error occurs most of the time after running test_series_timeline_graph, but if I run that test by itself, I never get any LayerIsolationErrors. You can see my changes in this branch: lp:~edwin-grubbs/launchpad/bug-430708-registry-windmill-layerThis is too bad. I'm going to see if I can reproduce it on Monday. You are using version 1.3beta3-lp-r1440, right? (Look in bin/test to see which egg gets added to the sys.path.I had to add some sleep() calls inside a couple of the windmill tests to prevent sporadic failures where it can't find a node. This is odd, since I put a waits.forElement() call directly before the assertNode(), so it should never fail to find a node.Right, this shouldn't happen. I think we've seen this before. Do you have an example where you need to add a sleep()?
This error is raised by our code btw, so we can fix the check if these errors are benign. -- Stuart Bishop <[email protected]> http://www.stuartbishop.net/
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