Add tests for `keybindings.dart` (KeyEvent → Keybinding mapping,
parse-error edges, resolver entries view), `toolchain_paths.dart`
(the Flutter-free `ToolchainView.resolved` static view), and several
`widgets/src/` primitives: tooltip hover/overlay, palette filter +
submit, multitab controller `copyWith` + size getters, and additional
markdown branches (h3–h6 headings, tables, strikethrough, default
block fallback, record-link tap).
Unfreezes the pre-push coverage floor that was held at 90 on
2026-05-14 by mistake and ratchets to 93. Tidies eight test files
that had accumulated unused imports flagged by `unnecessary_import`.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
test / unit + widget + golden + a11y (push) Failing after 30s
test / integration_test (xvfb) (push) Has been skipped
test / bundle smoke (xvfb 5s) (push) Has been skipped
test / daemon subprocess + web WASM smoke (push) Has been skipped
test / dart doc (lib API) (push) Failing after 1m2s
10 small tests in test/kernel/src/theme/mop_up_test.dart covering the
scattered last-mile gaps across the theme subsystem:
- ClideTheme.of and ClideTheme.controllerOf inherited-widget lookups
(both happy path + the FlutterError-throw branch when no ancestor).
- contrast._composite alpha-mix branch via a partially-transparent
foreground in contrastRatio.
- ContrastFailure.toString format with embedded pair name / ratio /
minimum.
- ThemeLoader.fromYamlString FormatException on a non-map root.
- ThemeLoader.fromFile happy path with a tempdir YAML.
- Palette.names and SemanticRoles.roles iterables.
Coverage: theme/controller.dart 37/42 -> 42/42; theme/contrast.dart
54/64 -> 62/64 (remaining 2 lines are the failingPairs add-to-list
path, needs a constructed-broken SurfaceTokens to fire);
theme/loader.dart 48/54 -> 53/54 (1 const-ctor phantom);
theme/palette.dart 9/10 -> 10/10; theme/semantic.dart 2/3 -> 3/3.
Total coverage 74.55% -> 74.79%.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>