def METHOD_NAME(self):
    ordered_chrono = [self.m3, self.m1, self.m2]
    buf = Buffer(station_id=self.station_id)
    buf.append(self.m1)
    buf.append(self.m2)
    buf.append(self.m3)
    self.assertNotEqual(buf.measurements, ordered_chrono)
    buf.sort_chronologically()
    self.assertEqual(buf.measurements, ordered_chrono)