def testCallFolding(self):
events = []
def testfn():
d = defer.Deferred()
def done():
events.append('TM')
d.callback(None)
reactor.callLater(0, done)
return d
si = misc.SerializedInvocation(testfn)
# run three times - the first starts testfn, the second
# requires a second run, and the third is folded.
si()
si()
si()
d = self.waitForQuiet(si)
def check(_):
self.assertEqual(events, ['TM', 'TM'])
d.addCallback(check)
return d
def testCallFolding(self):
events = []
def testfn():
d = defer.Deferred()
def done():
events.append('TM')
d.callback(None)
eventually(done)
return d
si = misc.SerializedInvocation(testfn)
# run three times - the first starts testfn, the second
# requires a second run, and the third is folded.
d1 = si()
d2 = si()
d3 = si()
dq = self.waitForQuiet(si)
d = defer.gatherResults([d1, d2, d3, dq])
def check(_):
self.assertEqual(events, ['TM', 'TM'])
d.addCallback(check)
return d
def testException(self):
def testfn():
d = defer.Deferred()
reactor.callLater(0, d.errback,
failure.Failure(RuntimeError("oh noes")))
return d
si = misc.SerializedInvocation(testfn)
d = si()
def check(_):
self.assertEqual(len(self.flushLoggedErrors(RuntimeError)), 1)
d.addCallback(check)
return d
