Fix fan not checking supported_features

[shenxn]

Proposed change

Fix the problem that FanEntity.capability_attributes and FanEntity.state_attributes do not check supported_features.

Docs update:

home-assistant/developers.home-assistant#496

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Example entry for configuration.yaml:

# Example configuration.yaml

Additional information

• This PR fixes or closes issue: fixes HomeKit Controller does not check supported features when update state #35232
• This PR is related to issue:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• The code has been formatted using Black (black --fast homeassistant tests)
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly.
  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• Untested files have been added to .coveragerc.

The integration reached or maintains the following Integration Quality Scale:

• No score or internal
• 🥈 Silver
• 🥇 Gold
• 🏆 Platinum

[MartinHjelmare]

Thanks! A small change needed below.

Also, have we checked that no other platforms need updating than the demo platform?

Please also update our developer docs and include oscillating, in the properties:
https://developers.home-assistant.io/docs/entity_fan#properties

[shenxn]

@MartinHjelmare I don't have any other fan devices to check. But the tests all passed and I checked all integrations that supports fan. Only dyson, homekit_controller, mqtt, template, and tuya support oscillating and all of them seem to implemented using property which should not need to be fixed. The tuya integration now has unnecessary check but it will not break anything so maybe it can be fixed in another PR.

[MartinHjelmare]

Good!

[Jc2k]

Nice! Thanks for this @shenxn