# Testing signals — gotestyourself/gotestsum

> Canonical page: https://codevetter.com/unpack/gotestsum/testing-signals

# Testing signals — gotestyourself/gotestsum

Scanned commit 3cf14356a16c7931cfeacd7dfee585527618df3d (2026-04-14). Generated by codevetter codevetter 1.15.0 on 2026-10-02.

Source inspection; upstream code and tests were not executed.

Tests and CI were inspected, not executed; no passing result is asserted. The inspected suite uses Go testing with gotest.tools assertions, golden files, filesystem fixtures, subprocess helpers, and go-cmp. It combines event-log regressions with selected real subprocess and filesystem integration tests. Coverage observations are bounded to the files examined, and platform exclusions or short-mode skips materially limit some paths.
- cmd's integration suite uses testing, gotest.tools/v3 assert/env/fs/golden/icmd/poll/skip, while event-state tests additionally use go-cmp; these declarations and assertions were inspected only. — [cmd/main_e2e_test.go#L3-L20](https://github.com/gotestyourself/gotestsum/blob/3cf14356a16c7931cfeacd7dfee585527618df3d/cmd/main_e2e_test.go#L3-L20) [testjson/execution_test.go#L3-L14](https://github.com/gotestyourself/gotestsum/blob/3cf14356a16c7931cfeacd7dfee585527618df3d/testjson/execution_test.go#L3-L14)
- execution_test.go exercises minimal scanning, Stop invocation on handler error, raw-event parsing, synthesized missing failures, non-JSON tolerance, and GODEBUG filtering. — [testjson/execution_test.go#L40-L93](https://github.com/gotestyourself/gotestsum/blob/3cf14356a16c7931cfeacd7dfee585527618df3d/testjson/execution_test.go#L40-L93) [testjson/execution_test.go#L160-L236](https://github.com/gotestyourself/gotestsum/blob/3cf14356a16c7931cfeacd7dfee585527618df3d/testjson/execution_test.go#L160-L236)
- Formatter tests replay stored stdout/stderr through fakeHandler and compare golden output; fixtures are documented as generated from tagged test packages, with coverage, shuffle, panic, and timeout variants. — [testjson/format_test.go#L12-L38](https://github.com/gotestyourself/gotestsum/blob/3cf14356a16c7931cfeacd7dfee585527618df3d/testjson/format_test.go#L12-L38) [testjson/format_test.go#L66-L85](https://github.com/gotestyourself/gotestsum/blob/3cf14356a16c7931cfeacd7dfee585527618df3d/testjson/format_test.go#L66-L85)
- cmd tests cover failure-limit rejection, build-error and panic rerun guards, stdin replay, pre-hook JSON synchronization, and timing-only JSON output; the synchronization test skips Windows. — [cmd/main_test.go#L340-L405](https://github.com/gotestyourself/gotestsum/blob/3cf14356a16c7931cfeacd7dfee585527618df3d/cmd/main_test.go#L340-L405) [cmd/main_test.go#L412-L479](https://github.com/gotestyourself/gotestsum/blob/3cf14356a16c7931cfeacd7dfee585527618df3d/cmd/main_test.go#L412-L479) [cmd/main_test.go#L482-L551](https://github.com/gotestyourself/gotestsum/blob/3cf14356a16c7931cfeacd7dfee585527618df3d/cmd/main_test.go#L482-L551)
- Rerun integration cases exercise eventual success, continued failure, and build-error aborts; short mode skips them, and the interrupt test skips Windows while asserting exit status 130. — [cmd/main_e2e_test.go#L29-L104](https://github.com/gotestyourself/gotestsum/blob/3cf14356a16c7931cfeacd7dfee585527618df3d/cmd/main_e2e_test.go#L29-L104) [cmd/main_e2e_test.go#L150-L191](https://github.com/gotestyourself/gotestsum/blob/3cf14356a16c7931cfeacd7dfee585527618df3d/cmd/main_e2e_test.go#L150-L191)
- JUnit tests use deterministic timestamps and GOVERSION for golden comparisons of ordinary output, empty-package filtering, skipped-test filtering, and test attributes. — [internal/junitxml/report_test.go#L18-L84](https://github.com/gotestyourself/gotestsum/blob/3cf14356a16c7931cfeacd7dfee585527618df3d/internal/junitxml/report_test.go#L18-L84)
- Unix Watch integration checks filesystem-triggered events and a/r/d/u controls without running actual test subprocesses; matrix tests cover percentile/bucketing and serialized output, while the inspected slowest tests cover help and the preset statement rather than end-to-end rewriting. — [internal/filewatcher/watch_unix_test.go#L18-L87](https://github.com/gotestyourself/gotestsum/blob/3cf14356a16c7931cfeacd7dfee585527618df3d/internal/filewatcher/watch_unix_test.go#L18-L87) [cmd/tool/matrix/matrix_test.go#L18-L71](https://github.com/gotestyourself/gotestsum/blob/3cf14356a16c7931cfeacd7dfee585527618df3d/cmd/tool/matrix/matrix_test.go#L18-L71) [cmd/tool/matrix/matrix_test.go#L176-L221](https://github.com/gotestyourself/gotestsum/blob/3cf14356a16c7931cfeacd7dfee585527618df3d/cmd/tool/matrix/matrix_test.go#L176-L221) [cmd/tool/slowest/ast_test.go#L12-L21](https://github.com/gotestyourself/gotestsum/blob/3cf14356a16c7931cfeacd7dfee585527618df3d/cmd/tool/slowest/ast_test.go#L12-L21)
- Inspected GitHub Actions runs build plus race-enabled tests across stable/oldstable Go on Linux, Windows, and macOS; CircleCI defines lint and release builds. Their configuration is evidence of intended checks, not executed CI success. — [.github/workflows/ci.yaml#L7-L28](https://github.com/gotestyourself/gotestsum/blob/3cf14356a16c7931cfeacd7dfee585527618df3d/.github/workflows/ci.yaml#L7-L28) [.circleci/config.yml#L47-L75](https://github.com/gotestyourself/gotestsum/blob/3cf14356a16c7931cfeacd7dfee585527618df3d/.circleci/config.yml#L47-L75) [.circleci/config.yml#L78-L95](https://github.com/gotestyourself/gotestsum/blob/3cf14356a16c7931cfeacd7dfee585527618df3d/.circleci/config.yml#L78-L95)

Every claim links to its cited files at the pinned commit. Citations identify source evidence; they do not establish runtime correctness. Independent CodeVetter scan — not reviewed by upstream maintainers.

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