Dartboard

Flutter and Dart testing in one panel.
See what your tests really cover, why they fail, and what to test next.

Features


Coverage	Line and branch coverage per file, with untested files shown at 0% so the total is honest.
Widgets	Every screen and widget tree, with each child marked rendered or never rendered.
States	Bloc, Cubit, Riverpod and ChangeNotifier events and states your tests reached or missed.
Failures	Each failure as a title, the line to fix, expected vs. actual, and a hint.
In the editor	Gutter marks, coverage above each function, untested cases with one-click test stubs.
Widget tests	Run on 5 screen sizes, check accessibility, and scrub a filmstrip of every frame.
Reports	A PDF audit report, coverage history, and a README badge for your project.

Everything runs on your machine. No account, no server, no internet needed.

Use ⚡ to run only the tests affected by your changes, and … for everything else.

Settings

Setting	Default	Description
`dartboard.testCommand`	`flutter test --coverage`	Command for the full run (▶ in the panel title).
`dartboard.flutterCommand`	`flutter`	Executable for background runs (single file, live, strength, mapping).
`dartboard.lcovGlob`	`**/coverage/lcov.info`	Where to find reports. Several are merged.
`dartboard.exclude`	generated files	Globs left out everywhere.
`dartboard.goal`	`80`	Coverage goal (0 hides it).
`dartboard.showUntestedFiles`	`true`	List files no test imports at 0%.
`dartboard.includeUntestedInTotal`	`true`	Count them in totals (estimated line counts).
`dartboard.viewMode`	`tree`	`tree`, `flat` or `layers`.
`dartboard.sortBy`	`coverageAsc`	`coverageAsc`, `coverageDesc` or `name`.
`dartboard.changedFilesOnly`	`false`	Only files changed on this git branch.
`dartboard.liveCoverage`	`false`	Re-run a file's tests on save.
`dartboard.maxMutations`	`15`	Changes tried per file by Check Test Strength.
`dartboard.lowThreshold` / `highThreshold`	`50` / `80`	Red / amber / green cut-offs.
`dartboard.highlightMode`	`both`	`gutter`, `line` or `both`.
`dartboard.branchCoverage`	`true`	Collect branch coverage (`--branch-coverage`).
`dartboard.codeLens`	`all`	`all`, `uncovered` or `off` for the hints above code.
`dartboard.testPitfalls`	`true`	Warn about common widget test mistakes.
`dartboard.screenMatrix`	5 setups	Screen sizes and themes for Screen sizes.
`dartboard.includeIntegrationCoverage`	`true`	Merge integration test coverage into the totals.

Notes

Git is optional. Without it, the "changed files" filter is hidden and the risk radar uses coverage and complexity only.
Test files are matched by name: lib/src/auth/login.dart ↔ test/auth/login_test.dart.
Check Test Strength edits the file temporarily and always restores it, even after a crash (on next start).
Untested files' line counts are estimates from a lightweight Dart parser.
Widget trees, screens and states are read from your source without running the analyzer. Widgets inside a const subtree or a conditional that coverage can't see into are marked unknown rather than guessed.
Screen sizes and Filmstrip write a temporary test file next to yours and delete it afterwards.

npm install
npm test          # compile and run all checks
npm run package   # build the .vsix

Press F5 in VS Code to try it in a development window.