Files
headscale/hscontrol/types/testlog.go
Kristoffer Dalby 4cca63155d all: apply godoc [Name] link conventions across comments
Every Go-identifier reference in // and /* */ comments now uses
godoc's [Name] linking syntax so pkg.go.dev and `go doc` render
them as clickable cross-references. No behaviour change.

Pattern applied across the tree:
  In-package         [Foo], [Foo.Bar]
  Cross-package      [pkg.Foo], [pkg.Foo.Bar]
  Stdlib             [netip.Prefix], [errors.Is], [context.Context]
  Tailscale          [tailcfg.MapResponse], [tailcfg.Node.CapMap],
                     [tailcfg.NodeAttrSuggestExitNode]

Skip rules:
  - File:line refs left as plain text
  - HuJSON wire keys inside backtick raw strings untouched
  - ACL/policy syntax tokens (tag:foo, autogroup:self, ...) not Go
    symbols, left as plain text
  - JSON/OIDC wire keys, gorm tags, RFC IPv6 placeholders, markdown
    link tags, decorative dividers — all left as-is
2026-05-19 09:55:22 +02:00

49 lines
1.6 KiB
Go

package types
import (
"os"
"testing"
"github.com/rs/zerolog"
)
// EnvTestLogLevel overrides the default test log level. Accepts any zerolog
// level string: trace, debug, info, warn, error, fatal, panic, disabled.
const EnvTestLogLevel = "HEADSCALE_TEST_LOG_LEVEL"
// init quiets zerolog when this package is loaded inside a test binary.
//
// hscontrol/types is transitively imported by every test in the repo that
// emits zerolog output, so this init() runs once per test binary and is
// the only place that needs to know about test logging configuration.
//
// Default: [zerolog.ErrorLevel] (silent in green-path runs, real errors still surface).
// Override: HEADSCALE_TEST_LOG_LEVEL=debug (or trace, info, warn, disabled).
//
// Production binaries are unaffected because [testing.Testing] returns false
// outside of test execution. The same [testing.Testing] pattern is already
// used in hscontrol/db/users.go and hscontrol/db/node.go, so importing the
// testing package here is consistent with existing project conventions.
//
// Pitfalls:
// - log.Fatal still calls [os.Exit] and log.Panic still panics regardless of
// level — only the rendered message is suppressed.
// - Local buffer loggers ([zerolog.New] with a buffer) are also gated by the global
// level. Tests that assert on log output (currently only
// hscontrol/util/zlog) re-enable trace level via their own init_test.go.
func init() {
if !testing.Testing() {
return
}
if raw := os.Getenv(EnvTestLogLevel); raw != "" {
lvl, err := zerolog.ParseLevel(raw)
if err == nil {
zerolog.SetGlobalLevel(lvl)
return
}
}
zerolog.SetGlobalLevel(zerolog.ErrorLevel)
}