def METHOD_NAME(self):
    ti = TrackInterval()
    nt.assert_equals(ti.track, 0)
    ti.track = 5
    nt.assert_equals(ti.track, 5)
    ti.track = -12
    nt.assert_equals(ti.track, -12)
    ti.track = 0
    nt.assert_equals(ti.track, 0)
    # Check initial id
    ti = TrackInterval(20, Timestamp(), Timestamp())
    nt.assert_equals(ti.track, 20)
    ti.track = 5
    nt.assert_equals(ti.track, 5)
    ti.track = -12
    nt.assert_equals(ti.track, -12)
    ti.track = 0
    nt.assert_equals(ti.track, 0)