Extract state template functions into a state Jinja2 extension

[frenck]

Proposed change

This PR is part of the ongoing effort to refactor our huge single template monolith into something more maintainable. In previous PRs I've moved many categories of template methods out of the monolith template file into their own Jinja2 extension.

This PR moves the state template functions (closest, distance, expand, has_value, is_state, is_state_attr, state_attr, states, state_translated, state_attr_translated) into their own Jinja2 extension. Moves all tests as well.

The callable class instances (AllStates, StateTranslated, StateAttrTranslated) required a small addition to the base extension: a pass_context flag on TemplateFunction that allows requires_hass=True functions to opt out of _pass_context wrapping. This allows these class instances to go through the standard pipeline (getting automatic limited template handling) without being wrapped as context functions.

With this PR, TemplateEnvironment.__init__ no longer contains any manual self.globals[...] / self.filters[...] / self.tests[...] registrations, it only loads extensions.

There is no functional change in this PR, it is only moving these methods and tests into an extension.

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)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
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• Link to developer documentation pull request:
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Checklist

• I understand the code I am submitting and can explain how it works.
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• Tests have been added to verify that the new code works.
• Any generated code has been carefully reviewed for correctness and compliance with project standards.

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[Copilot]

Pull request overview

Refactors Home Assistant’s template system by extracting state-related template functions into a dedicated Jinja2 extension and moving associated tests into the extensions test suite.

Changes:

• Added StateExtension to provide state template globals/filters/tests (closest, distance, expand, has_value, is_state, is_state_attr, state_attr, states, state_translated, state_attr_translated).
• Extended TemplateFunction with a pass_context flag to support callable class instances that must not be wrapped with pass_context.
• Moved state-function tests from tests/helpers/template/test_init.py into a new tests/helpers/template/extensions/test_state.py.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
tests/helpers/template/test_init.py	Removes most state-function tests and related imports; keeps a couple of closest/group render-info tests.
tests/helpers/template/extensions/test_state.py	New test module covering state template functions now provided by the extension.
homeassistant/helpers/template/extensions/state.py	Implements the new StateExtension and registers state globals/filters/tests.
homeassistant/helpers/template/extensions/base.py	Adds TemplateFunction.pass_context and updates wrapping logic accordingly.
homeassistant/helpers/template/extensions/__init__.py	Exports StateExtension from the extensions package.
homeassistant/helpers/template/__init__.py	Removes inline state-function registrations and loads StateExtension via add_extension.

[Copilot]

Pull request overview

Copilot reviewed 6 out of 6 changed files in this pull request and generated no new comments.

[Copilot]

Pull request overview

Copilot reviewed 6 out of 6 changed files in this pull request and generated no new comments.

[edenhaus]

Thanks @frenck 👍

[frenck]

Thanks 🫶