On 2 Nov 2009, at 07:22, Crispin Wellington wrote:
On Mon, 2009-11-02 at 01:12 -0500, Glyph Lefkowitz wrote:
On Nov 1, 2009, at 11:17 PM, Crispin Wellington wrote:
I tried using LoopingCall, but it does not work. It only calls the scheduler once. I think this has to do with the fact that the stackless scheduler needs to be interwoven with the twisted reactor pump.
What do you mean "does not work"?
OK. Having a closer look, its not that looping call doesn't work, its that there is some unknown number of "reactor pumps" between starting the test, and finishing it. What I need is a way for the reactor to be pumping away while a particular test function of a testcase continues working. [snip] Running this under trial, it just hangs, inside the while task.alive: loop.
So I guess my problem is my approach. How do I test long running "tasklets" that use twisted calls (unlike this contrived example that only sleeps) within the twisted trial framework?
I'm no expert, but I have some tests against objects that use spawnProcess() which has the similar problem that I need to pump the reactor. The key is to return a deferred from the trial test method - then trial does the pump for you. I'm actually using @inlineCallbacks and the sleep() function mentioned in a previous post - you'll probably want task.deferLater() or similar.