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lmittmannlmittmann
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added benchmark
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Lines changed: 148 additions & 3 deletions

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‎README.md‎

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[![Go Report Card](https://goreportcard.com/badge/github.com/lmittmann/tint)](https://goreportcard.com/report/github.com/lmittmann/tint)
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‎handler_test.go‎

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package tint_test
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import (
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"context"
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"errors"
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"io"
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"os"
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"testing"
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"time"
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"github.com/lmittmann/tint"
@@ -21,3 +24,145 @@ func Example() {
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slog.Error("DB connection lost", tint.Err(errors.New("connection reset")), "db", "myapp")
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// Output:
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}
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// See https://github.com/golang/exp/blob/master/slog/benchmarks/benchmarks_test.go#L25
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//
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// Run e.g.:
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//
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// go test -bench=. -count=10 | benchstat -col /h /dev/stdin
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func BenchmarkLogAttrs(b *testing.B) {
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handler := []struct {
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Name string
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H slog.Handler
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}{
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{"tint", tint.NewHandler(io.Discard)},
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{"text", slog.NewTextHandler(io.Discard)},
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{"json", slog.NewJSONHandler(io.Discard)},
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{"discard", new(discarder)},
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}
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benchmarks := []struct {
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Name string
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F func(*slog.Logger)
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}{
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{
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"5 args",
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func(logger *slog.Logger) {
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logger.LogAttrs(nil, slog.LevelInfo, testMessage,
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slog.String("string", testString),
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slog.Int("status", testInt),
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slog.Duration("duration", testDuration),
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slog.Time("time", testTime),
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slog.Any("error", testError),
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)
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},
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},
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{
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"5 args custom level",
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func(logger *slog.Logger) {
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logger.LogAttrs(nil, slog.LevelInfo+1, testMessage,
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slog.String("string", testString),
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slog.Int("status", testInt),
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slog.Duration("duration", testDuration),
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slog.Time("time", testTime),
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slog.Any("error", testError),
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)
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},
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},
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{
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"10 args",
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func(logger *slog.Logger) {
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logger.LogAttrs(nil, slog.LevelInfo, testMessage,
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slog.String("string", testString),
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slog.Int("status", testInt),
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slog.Duration("duration", testDuration),
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slog.Time("time", testTime),
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slog.Any("error", testError),
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slog.String("string", testString),
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slog.Int("status", testInt),
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slog.Duration("duration", testDuration),
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slog.Time("time", testTime),
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slog.Any("error", testError),
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)
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},
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},
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{
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"40 args",
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func(logger *slog.Logger) {
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logger.LogAttrs(nil, slog.LevelInfo, testMessage,
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slog.String("string", testString),
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slog.Int("status", testInt),
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slog.Duration("duration", testDuration),
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slog.Time("time", testTime),
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slog.Any("error", testError),
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slog.String("string", testString),
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slog.Int("status", testInt),
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slog.Duration("duration", testDuration),
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slog.Time("time", testTime),
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slog.Any("error", testError),
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slog.String("string", testString),
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slog.Int("status", testInt),
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slog.Duration("duration", testDuration),
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slog.Time("time", testTime),
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slog.Any("error", testError),
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slog.String("string", testString),
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slog.Int("status", testInt),
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slog.Duration("duration", testDuration),
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slog.Time("time", testTime),
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slog.Any("error", testError),
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slog.String("string", testString),
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slog.Int("status", testInt),
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slog.Duration("duration", testDuration),
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slog.Time("time", testTime),
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slog.Any("error", testError),
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slog.String("string", testString),
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slog.Int("status", testInt),
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slog.Duration("duration", testDuration),
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slog.Time("time", testTime),
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slog.Any("error", testError),
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slog.String("string", testString),
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slog.Int("status", testInt),
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slog.Duration("duration", testDuration),
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slog.Time("time", testTime),
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slog.Any("error", testError),
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slog.String("string", testString),
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slog.Int("status", testInt),
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slog.Duration("duration", testDuration),
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slog.Time("time", testTime),
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slog.Any("error", testError),
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)
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},
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},
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}
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for _, h := range handler {
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b.Run("h="+h.Name, func(b *testing.B) {
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for _, bench := range benchmarks {
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b.Run(bench.Name, func(b *testing.B) {
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b.ReportAllocs()
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logger := slog.New(h.H)
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for i := 0; i < b.N; i++ {
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bench.F(logger)
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}
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})
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}
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})
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}
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}
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// discarder is a slog.Handler that discards all records.
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type discarder struct{}
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func (*discarder) Enabled(context.Context, slog.Level) bool { return true }
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func (*discarder) Handle(context.Context, slog.Record) error { return nil }
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func (d *discarder) WithAttrs(attrs []slog.Attr) slog.Handler { return d }
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func (d *discarder) WithGroup(name string) slog.Handler { return d }
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var (
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testMessage = "Test logging, but use a somewhat realistic message length."
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testTime = time.Date(2022, time.May, 1, 0, 0, 0, 0, time.UTC)
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testString = "7e3b3b2aaeff56a7108fe11e154200dd/7819479873059528190"
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testInt = 32768
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testDuration = 23 * time.Second
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testError = errors.New("fail")
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)

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