"bytes"
	"flag"
	"strings"
	"testing"
)

func TestLevelString(t *testing.T) {
	for _, test := range []struct {
		in   Level
		want string
	}{
		{0, "INFO"},
		{LevelError, "ERROR"},
		{LevelError + 2, "ERROR+2"},
		{LevelError - 2, "WARN+2"},
		{LevelWarn, "WARN"},
		{LevelWarn - 1, "INFO+3"},
		{LevelInfo, "INFO"},
		{LevelInfo + 1, "INFO+1"},
		{LevelInfo - 3, "DEBUG+1"},
		{LevelDebug, "DEBUG"},

		_, level, text, valid := parseLog(l)
		if !valid {
			continue
		}
		switch level {
		case levelFatal, levelError, levelWarn:
			if match.MatchesGlobs(text, config.IgnoredErrors) {
				continue
			}
			switch level {
			case levelFatal:
				out.numFatals++
			case levelError:
				out.numErrors++
			case levelWarn:
				out.numWarnings++
			}
		default:
		}
	}
	return out
}

	}

	switch {
	case l < LevelInfo:
		return str("DEBUG", l-LevelDebug)
	case l < LevelWarn:
		return str("INFO", l-LevelInfo)
	case l < LevelError:
		return str("WARN", l-LevelWarn)
	default:
		return str("ERROR", l-LevelError)
	}
}

// MarshalJSON implements [encoding/json.Marshaler]
// by quoting the output of [Level.String].
func (l Level) MarshalJSON() ([]byte, error) {

// of the internal writer that uses the custom handler for log package after
// calling slog.SetDefault.
func ExampleSetLogLoggerLevel_slog() {
	// Set the default logging level to slog.LevelError.
	currentLogLevel := slog.SetLogLoggerLevel(slog.LevelError)
	defer slog.SetLogLoggerLevel(currentLogLevel) // revert changes after the example

	defer slog.SetDefault(slog.Default()) // revert changes after the example

	const (
		LevelTrace     = slog.Level(-8)
		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