def METHOD_NAME(self):
    def table_generator_function():
        return empty_table(1).update("Timestamp = io.deephaven.base.clock.Clock.system().currentTimeMillis()")
    result_table = function_generated_table(table_generator_function, refresh_interval_ms=2000)
    self.assertEqual(result_table.size, 1)
    initial_time = result_table.j_table.getColumnSource("Timestamp").get(0)
    sleep(5)
    later_time = result_table.j_table.getColumnSource("Timestamp").get(0)
    # Make sure it ticked at least once within 5 seconds. It should have ticked twice,
    # but leaving a wider margin to ensure the test passes -- as long as it ticks at all
    # we can be confident it's working.
    self.assertGreaterEqual(later_time, initial_time + 2000)