for _, test := range []struct {
		in   string
		want Level
	}{
		{"DEBUG", LevelDebug},
		{"INFO", LevelInfo},
		{"WARN", LevelWarn},
		{"ERROR", LevelError},
		{"debug", LevelDebug},
		{"iNfo", LevelInfo},
		{"INFO+87", LevelInfo + 87},
		{"Error-18", LevelError - 18},
		{"Error-8", LevelInfo},
	} {
		var got Level
		if err := got.parse(test.in); err != nil {
			t.Fatalf("%q: %v", test.in, err)
		}

	logger.Log(ctx, LevelInfo, "")
	check(0)
	logger.LogAttrs(ctx, LevelInfo, "")
	check(1)
	logger.Debug("")
	check(2)
	logger.Info("")
	check(3)
	logger.Warn("")
	check(4)
	logger.Error("")
	check(5)
	Debug("")
	check(6)
	Info("")
	check(7)
	Warn("")
	check(8)
	Error("")
	check(9)
	Log(ctx, LevelInfo, "")
	check(10)
	LogAttrs(ctx, LevelInfo, "")

		LevelDebug     = slog.LevelDebug
		LevelInfo      = slog.LevelInfo
		LevelNotice    = slog.Level(2)
		LevelWarning   = slog.LevelWarn
		LevelError     = slog.LevelError
		LevelEmergency = slog.Level(12)
	)

	th := slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{
		// Set a custom level to show all log output. The default value is
		// LevelInfo, which would drop Debug and Trace logs.
		Level: LevelTrace,

					func() {
						logger.LogAttrs(nil, slog.LevelInfo, testMessage,
							slog.String("string", testString),
							slog.Int("status", testInt),
							slog.Duration("duration", testDuration),
							slog.Time("time", testTime),
							slog.Any("error", testError),
						)
					},
				},
				{
					"5 args ctx",
					func() {
						logger.LogAttrs(ctx, slog.LevelInfo, testMessage,
							slog.String("string", testString),

const (
	LevelDebug Level = -4
	LevelInfo  Level = 0
	LevelWarn  Level = 4
	LevelError Level = 8
)

// String returns a name for the level.
// If the level has a name, then that name
// in uppercase is returned.
// If the level is between named values, then
// an integer is appended to the uppercased name.
// Examples:
//
//	LevelWarn.String() => "WARN"
//	(LevelInfo+2).String() => "INFO+2"

	l.log(ctx, LevelDebug, msg, args...)
}

// Info logs at [LevelInfo].
func (l *Logger) Info(msg string, args ...any) {
	l.log(context.Background(), LevelInfo, msg, args...)
}

// InfoContext logs at [LevelInfo] with the given context.
func (l *Logger) InfoContext(ctx context.Context, msg string, args ...any) {
	l.log(ctx, LevelInfo, msg, args...)
}

// Warn logs at [LevelWarn].

func Infof(logger *slog.Logger, format string, args ...any) {
	if !logger.Enabled(context.Background(), slog.LevelInfo) {
		return
	}
	var pcs [1]uintptr
	runtime.Callers(2, pcs[:]) // skip [Callers, Infof]
	r := slog.NewRecord(time.Now(), slog.LevelInfo, fmt.Sprintf(format, args...), pcs[0])
	_ = logger.Handler().Handle(context.Background(), r)
}

func Example_wrapping() {

	"strings"
	"time"

	"istio.io/istio/tools/bug-report/pkg/config"
	"istio.io/istio/tools/bug-report/pkg/util/match"
)

const (
	levelFatal = "fatal"
	levelError = "error"
	levelWarn  = "warn"
	levelInfo  = "info"
	levelDebug = "debug"
	levelTrace = "trace"
)

var ztunnelLogPattern = regexp.MustCompile(`^(\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d+Z)\s+(?:\w+\s+)?(\w+)\s+([\w\.:]+)(.*)`)

		},
	} {
		t.Run(test.name, func(t *testing.T) {
			var buf bytes.Buffer
			h := NewJSONHandler(&buf, &test.opts)
			r := NewRecord(testTime, LevelInfo, "m", 0)
			r.AddAttrs(Int("a", 1), Any("m", map[string]int{"b": 2}))
			if err := h.Handle(context.Background(), r); err != nil {
				t.Fatal(err)
			}
			got := strings.TrimSuffix(buf.String(), "\n")

					strings.ToUpper,
				},
			} {
				t.Run(opts.name, func(t *testing.T) {
					var buf bytes.Buffer
					h := NewTextHandler(&buf, &opts.opts)
					r := NewRecord(testTime, LevelInfo, "a message", 0)
					r.AddAttrs(test.attr)
					if err := h.Handle(context.Background(), r); err != nil {
						t.Fatal(err)
					}
					got := buf.String()
					// Remove final newline.
					got = got[:len(got)-1]