Test without Sorbet runtime

[MikeMcQuaid]

This will provide some regression testing for the path that users hit.

CC @dduugg this should hopefully help avoid 💥 in future.

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OpenAI Codex 5.5 xhigh with local review and testing.

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[Copilot]

Pull request overview

This PR aims to add regression coverage for running brew tests with Sorbet runtime checking disabled, adjusting a few runtime guards and updating specs/CI to avoid relying on Sorbet runtime error behavior.

Changes:

• Add a CI matrix entry to run brew tests in a “no Sorbet” configuration and add a corresponding unit test.
• Replace Sorbet-runtime-dependent behaviors (e.g., abstract raising) with explicit runtime exceptions (e.g., NotImplementedError) and add a manual safeguard for Formula#brew overrides.
• Update or remove specs that asserted Sorbet runtime TypeErrors/messages.

Reviewed changes

Copilot reviewed 19 out of 19 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
Library/Homebrew/version/parser.rb	Replace abstract process_spec behavior with explicit NotImplementedError.
Library/Homebrew/test/version/parser_spec.rb	Update expectation to match the new NotImplementedError.
Library/Homebrew/test/version_spec.rb	Remove Sorbet-runtime-dependent TypeError assertions for invalid Version.new inputs.
Library/Homebrew/test/utils/curl_spec.rb	Remove Sorbet-runtime-dependent TypeError assertions for invalid numeric args.
Library/Homebrew/test/resource_spec.rb	Remove Sorbet-runtime-dependent TypeError assertions for non-string resource versions.
Library/Homebrew/test/pkg_version_spec.rb	Remove Sorbet-runtime-dependent TypeError assertions for comparisons to non-PkgVersion.
Library/Homebrew/test/livecheck/strategy/git_spec.rb	Update description/comments to reflect non-string filtering behavior.
Library/Homebrew/test/livecheck/livecheck_spec.rb	Replace Sorbet reflection-based expectation with a hardcoded parameter list.
Library/Homebrew/test/livecheck_spec.rb	Remove Sorbet-runtime-dependent TypeError assertion for non-string formula argument.
Library/Homebrew/test/formula_validation_spec.rb	Relax error message assertion for overriding brew.
Library/Homebrew/test/formula_spec.rb	Update stubs to match Formulary.load_formula_from_path keyword arguments.
Library/Homebrew/test/dev-cmd/tests_spec.rb	Add a spec for disabling Sorbet runtime and call setup_environment! directly.
Library/Homebrew/test/dependency_spec.rb	Remove Sorbet-runtime-dependent TypeError assertion for nil dependency name.
Library/Homebrew/test/dependency_collector_spec.rb	Remove Sorbet-runtime-dependent TypeError assertion for unknown types.
Library/Homebrew/test/bundle/dsl_spec.rb	Remove “bad options” assertions for brew and tap entries.
Library/Homebrew/livecheck/strategy/git.rb	Skip non-string matches instead of rescuing TypeError on Version.new.
Library/Homebrew/formula.rb	Add a runtime guard preventing brew being overridden by subclasses.
Library/Homebrew/dev-cmd/tests.rb	Add env-controlled toggling to delete/enable Sorbet runtime env vars during test setup.
.github/workflows/tests.yml	Add “tests (no Sorbet)” job and set HOMEBREW_TESTS_NO_SORBET_RUNTIME=1.

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