Fix Tile location accuracy bug

[bachya]

Proposed change

This PR fixes a bug where a missing Tile H or V accuracy parameter could throw an unhandled exception.

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 tile errors on setup with new integration method #37193
• This PR is related to issue: N/A
• Link to documentation pull request: N/A

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
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[bdraco]

Confirmed error

2020-06-29 22:15:33 ERROR (MainThread) [homeassistant.components.device_tracker] Error while setting up tile platform for device_tracker
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 186, in _async_setup_platform
    await asyncio.gather(*pending)
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 292, in async_add_entities
    await asyncio.gather(*tasks)
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 451, in _async_add_entity
    entity.async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 290, in async_write_ha_state
    self._async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 314, in _async_write_ha_state
    sstate = self.state
  File "/usr/src/homeassistant/homeassistant/components/device_tracker/config_entry.py", line 105, in state
    self.hass, self.latitude, self.longitude, self.location_accuracy
  File "/usr/src/homeassistant/homeassistant/components/tile/device_tracker.py", line 90, in location_accuracy
    + self._tile["last_tile_state"]["v_accuracy"]
TypeError: unsupported operand type(s) for +: 'float' and 'NoneType'

[balloob]

Could you extract the variables first before checking. This is pretty unreadable.

[bdraco]

Retested with this code as a custom_components, and the error persists

2020-06-29 22:55:38 ERROR (MainThread) [homeassistant.components.device_tracker] Error while setting up tile platform for device_tracker
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 186, in _async_setup_platform
    await asyncio.gather(*pending)
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 292, in async_add_entities
    await asyncio.gather(*tasks)
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 451, in _async_add_entity
    entity.async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 290, in async_write_ha_state
    self._async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 314, in _async_write_ha_state
    sstate = self.state
  File "/usr/src/homeassistant/homeassistant/components/device_tracker/config_entry.py", line 105, in state
    self.hass, self.latitude, self.longitude, self.location_accuracy
  File "/config/custom_components/tile/device_tracker.py", line 98, in location_accuracy
    + self._tile["last_tile_state"]["v_accuracy"]
TypeError: unsupported operand type(s) for +: 'float' and 'NoneType'

[balloob]

That's my cleanup 🙄 It looks like key exists but it has none values. Will fix.

[bachya]

Thanks for the help, @balloob. 👍

[bdraco]

Error is gone after pulling latest sha