func sanitizeFilename()

in internal/testutil/golden.go [109:122]

• 13 lines of code
• 7 McCabe index (conditional complexity)

func sanitizeFilename(s string) string {
	result := strings.Builder{}
	for _, r := range s {
		if (r >= 'a' && r < 'z') || (r >= 'A' && r < 'Z') || r == '_' || r == '.' || (r >= '0' && r <= '9') {
			// The thing is documented as returning a nil error so lets just drop it
			_, _ = result.WriteRune(r)
			continue
		}
		if !strings.HasSuffix(result.String(), "_") {
			result.WriteRune('_')
		}
	}
	return "zz_fixture_" + result.String()
}