Add GitHub Actions test workflow with coverage badge#2
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Runs `go test -race` on pushes and PRs. On main, publishes a coverage badge to an orphan `badges` branch via vladopajic/go-test-coverage (built-in GITHUB_TOKEN, no external service). README links the Test status and Coverage badges.
The source action compiles the tool with go run, and v2.18.8 needs Go >= 1.26 while this module pins go 1.23 — the action forces GOTOOLCHAIN=local so it can't upgrade. The root action runs a prebuilt image instead, independent of the runner Go version.
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What
Adds CI that runs the test suite on every push and PR, and publishes a coverage badge on
main..github/workflows/test.yml— atestjob onubuntu-latest: sets up Go fromgo.mod, runsgo test -race -coverprofile=cover.out ./.... Onmain, also publishes the coverage badge.README.md— Test status + Coverage badges under the title.Coverage badge
Uses
vladopajic/go-test-coverage, which writes an SVG to an orphanbadgesbranch using the built-inGITHUB_TOKEN— no external service or secrets. On PRs the token is empty, so it only reports coverage (no push, no gate).Notes
badgesbranch already exists (the action requires it to be pre-created). The coverage badge image renders once the firstmainrun writes.badges/main/coverage.svg— i.e. after this PR merges. Until then the badge 404s; the Test badge works immediately.contents: write(scoped in the workflow). If it 403s, check Settings → Actions → General → Workflow permissions.cmd/pdfdumpandexamples/*have no tests, so total coverage lands ~51%. These can be excluded via a.testcoverage.ymlif preferred.