'The L{defer.Deferred} by default errbacks with a L{defer.TimeoutError}
if it times out before callbacking or errbacking.'

def test_timedOut(self):

    clock = Clock()
    d = defer.Deferred()
    d.addTimeout(10, clock)
    self.assertNoResult(d)
    clock.advance(15)
    self.failureResultOf(d, defer.TimeoutError)
