def test_answer_duration_zero_when_not_answered(self):
cel_events = [
_new_cel(eventtype='CHAN_START'),
_new_cel(eventtype='HANGUP'),
_new_cel(eventtype='CHAN_END')
]
channel = CELChannel(cel_events)
self.assertEqual(0.0, channel.answer_duration())
def test_answer_duration_when_answered(self):
datetime_gen = _new_incr_datetime_generator()
cel_events = [
_new_cel(eventtype='CHAN_START', eventtime=datetime_gen.next()),
_new_cel(eventtype='ANSWER', eventtime=datetime_gen.next()),
_new_cel(eventtype='HANGUP', eventtime=datetime_gen.next()),
_new_cel(eventtype='CHAN_END', eventtime=datetime_gen.next())
]
channel = CELChannel(cel_events)
self.assertEqual(2.0, channel.answer_duration())
