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Convert MQTT Light tests to async #17754

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merged 1 commit into from Oct 26, 2018

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balloob commented Oct 24, 2018

Description:

To migrate restore_state (PR #17270) to use the storage helper instead of history, we need to migrate all tests for components/platforms that use restore state to async or else the pytest fixtures won't work.

As a test to see how difficult it was, I converted the MQTT light tests. It took ~15-20 min because I had to figure out what things to change, but future ones we should be able to do faster. Things to do per test migration:

  • self.mock_publish should be replaced with fixture mock_mqtt
  • All functions need mock_publish fixture, also if they don't use it. This is because the fixture mocks out the whole MQTT component and we do use that.
  • self.hass should be replaced with fixture hass
  • Calls to common.* should be replaced with common.async_
  • all functions need to be moved outside of the class, have parameter self removed and be marked as async.
  • hass.block_till_done -> await hass.async_block_till_done(). Because async_block_till_done blocks 1 less cycle than block_till_done, you might sometimes have to call it twice 🤷‍♂️
  • calls to setup_component need to be replaced with await async_setup_component
  • fire_mqtt_message -> async_fire_mqtt_message

Checklist:

  • The code change is tested and works locally.
  • Local tests pass with tox. Your PR cannot be merged unless tests pass

If the code does not interact with devices:

  • Tests have been added to verify that the new code works.

@wafflebot wafflebot bot added the in progress label Oct 24, 2018

@balloob balloob merged commit 644c33c into dev Oct 26, 2018

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@balloob balloob deleted the light-mqtt-tests branch Oct 26, 2018

@wafflebot wafflebot bot removed the in progress label Oct 26, 2018

@balloob balloob referenced this pull request Nov 9, 2018

Merged

0.82 #18335

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