- Add a `temp_workspace` context manager to simplify writing new tests.
- Add `# pragma: no cover` to unit test code paths used for skipping tests.
These code paths are only covered when tests are skipped.
That makes it impractical to reach full code coverage on the unit test code.
Having full coverage of unit tests is helpful for identifying unused tests.
- Test the `octal-values` rule with a custom tag.
- Test the cli `-d` option with the `default` config.
- Test support for the `XDG_CONFIG_HOME` env var.
- Test warning message output.
- Test support for `.yamllint.yml` config files.
- Test support for `.yamllint.yaml` config files.
- Test error handling of a rule with a non-enable|disable|dict value.
- Test error handling of `ignore` with a non-pattern value.
- Test error handling of a rule `ignore` with a non-pattern value.
- Test error handling of `locale` with a non-string value.
- Test error handling of `yaml-files` with a non-list value.
- Test extending config containing `ignore`.
- Test `LintProblem.__repr__` without a rule.
- Test `LintProblem.__repr__` with a rule.
The `# -*- coding: utf-8 -*-` headers were useful for Python 2, and
aren't needed for Python 3 where UTF-8 is the default.
yamllint support of Python 2 was dropped in early 2021, see commit
a3fc64d "End support for Python 2".
Let's drop these headers.
