Function Mark

cmd/testwrapper/flakytest/flakytest.go:48–77

Mark sets the current test as a flaky test, such that if it fails, it will be retried a few times on failure. issue must be a GitHub issue that tracks the status of the flaky test being marked, of the format: https://github.com/tailscale/myRepo-H3re/issues/12345

(t testing.TB, issue string)

//
//	https://github.com/tailscale/myRepo-H3re/issues/12345
func Mark(t testing.TB, issue string) {
	if !issueRegexp.MatchString(issue) {
		t.Fatalf("bad issue format: %q", issue)
	}
	if _, ok := os.LookupEnv(FlakeAttemptEnv); ok {
		// We're being run under cmd/testwrapper so send our sentinel message
		// to stderr. (We avoid doing this when the env is absent to avoid
		// spamming people running tests without the wrapper)
		fmt.Fprintf(os.Stderr, "%s: %s\n", FlakyTestLogMessage, issue)
	}
	t.Attr("flaky-test-issue-url", issue)

	// The Attr method above also emits human-readable output, so this t.Logf
	// is somewhat redundant, but we keep it for compatibility with
	// old test runs, so cmd/testwrapper doesn't need to be modified.
	// TODO(bradfitz): switch testwrapper to look for Action "attr"
	// instead:
	// "Action":"attr","Package":"tailscale.com/cmd/testwrapper/flakytest","Test":"TestMarked_Root","Key":"flaky-test-issue-url","Value":"https://github.com/tailscale/tailscale/issues/0"}
	// And then remove this Logf a month or so after that.
	t.Logf("flakytest: issue tracking this flaky test: %s", issue)

	if boolEnv("TS_SKIP_FLAKY_TESTS") {
		t.Skipf("skipping due to TS_SKIP_FLAKY_TESTS")
	}

	// Record the root test name as flakey.
	rootFlakesMu.Lock()
	defer rootFlakesMu.Unlock()
	mak.Set(&rootFlakes, t.Name(), true)
}

// Marked reports whether the current test or one of its parents was marked flaky.
func Marked(t testing.TB) bool {