# 2.5.26.2. TestReactorMixin

class buildbot.test.reactor.TestReactorMixin

  The class `TestReactorMixin` is used to create a fake `twisted.internet.reactor` in tests. This allows to mock the flow of time in tests. The fake reactor becomes available as `self.reactor` in the test case that mixes in `TestReactorMixin`.

  Call `self.reactor.advance(seconds)` to advance the mocked time by the specified number of seconds.

  Call `self.reactor.pump(seconds_list)` to advance the mocked time multiple times as if by calling `advance`.

  For more information see the documentation of twisted.internet.task.Clock.

  setup_test_reactor(use_asyncio=False, auto_tear_down=True)
    Parameters:

      - use_asyncio (bool) – Whether to enable asyncio integration. This option has been deprecated and has no effect.

      - auto_tear_down (bool) – Whether to automatically tear down the test reactor. Setting it to `False` is deprecated.

    Call this function in the `setUp()` of the test case to setup fake reactor.

  tear_down_test_reactor()

    Call this function in the `tearDown()` of the test case to tear down fake reactor. This function is deprecated. The function returns a `Deferred`.