I have a class that looks something like this:
|class FooListener(object):
def __init__(self):
pass
@inlineCallbacks
def fooBar():
try:
yield doSomeSetup()
doSomethingThatReturnsADeferred()
returnValue('success!')
except:
returnValue('failure!')
|Note that doSomethingThatReturnsADeferred() has no callbacks.
I also have a unit test that looks something like this:
|def TestFoo(unittest.TestCase):
def setUp(self):
timeout = 1000000
self.listener = FooListener()
@inlineCallbacks
def testFooBar(self):
yield self.listener.fooBar()
|
When I run this, I get this error:
[ERROR]: foo.TestFoo.testFooBar
Traceback (most recent call last):
Failure: twisted.trial.util.DirtyReactorAggregateError: Reactor was unclean.
Selectables:
<twisted.internet.process.ProcessWriter object at 0x3b7b650>
-------------------------------------------------------------------------------
Ran 1 tests in 9.028s
FAILED (errors=1, successes=1)
I'm clever enough to understand that Trial isn't waiting for the
"backgrounded" Deferreds to fire, but I'm not clever enough to figure
how to fix it. :-)
I could hack around this by passing a test_mode parameter to
TestFoo.__init__ and "yield"-ing doSomethingThatReturnsADeferred(), but
I'd rather not introduce special cases for testing.
Is there a way to instruct Trial to "wait" for Deferreds to fire?
thanks
--
Mark Visser, Software Director
Lumière VFX
Email: [email protected]
Phone: +1-514-316-1080 x3030
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