def test_vseq_doesnt_track_duration_on_append(self):
        from sebastian.core import VSeq, Point
        s1 = VSeq()
        s1.append(Point(duration=10))
        s1.append(Point(duration=10))
        for point in s1:
            self.assertTrue('offset' not in point)
When passing the C{logfile} option, L{app.AppLogger._getLogObserver}
dataset/ETHPy150Open jtauber/sebastian/tests/test_sequences.py/TestSequences.test_vseq_doesnt_track_duration_on_append--crossover with--dataset/ETHPy150Open twisted/twisted/twisted/test/test_twistd.py/AppLoggerTests.test_getLogObserverFile