def test_time_calculated_with_mean_of_all_offsets(self, _,
seconds_counter_mock):
first_time = 1640000003.0
second_time = 16400000010.0
third_time = 1640000016.0
seconds_counter_mock.side_effect = [2, 4, 6, 10, 11, 13, 25]
time_provider = TimeSynchronizer()
for time in [first_time, second_time, third_time]:
self.async_run_with_timeout(
time_provider.update_server_time_offset_with_time_provider(
time_provider=self.configurable_timestamp_provider(time *
1e3)))
synchronized_time = time_provider.time()
first_expected_offset = first_time - (4 + 2) / 2
second_expected_offset = second_time - (10 + 6) / 2
third_expected_offset = third_time - (13 + 11) / 2
expected_offsets = [
first_expected_offset, second_expected_offset,
third_expected_offset
]
seconds_difference_when_calculating_current_time = 25
self.assertEqual(
statistics.median(expected_offsets) +
seconds_difference_when_calculating_current_time,
synchronized_time)
def test_time_with_one_registered_offset(self, _, seconds_counter_mock):
now = 1640000020.0
seconds_counter_mock.side_effect = [10, 30, 31]
time_provider = TimeSynchronizer()
self.async_run_with_timeout(
time_provider.update_server_time_offset_with_time_provider(
time_provider=self.configurable_timestamp_provider(now * 1e3)))
synchronized_time = time_provider.time()
seconds_difference_getting_time = 30 - 10
seconds_difference_when_calculating_current_time = 31
self.assertEqual(
now - seconds_difference_getting_time +
seconds_difference_when_calculating_current_time,
synchronized_time)
