package memory import ( "bytes" "context" "fmt" "strings" "testing" "go.unistack.org/micro/v4/logger" "go.unistack.org/micro/v4/logger/slog" "go.unistack.org/micro/v4/tracer" ) func TestLoggerWithTracer(t *testing.T) { ctx := context.TODO() buf := bytes.NewBuffer(nil) logger.DefaultLogger = slog.NewLogger(logger.WithOutput(buf)) if err := logger.Init(); err != nil { t.Fatal(err) } var span tracer.Span tr := NewTracer() ctx, span = tr.Start(ctx, "test1") logger.Error(ctx, "my test error", fmt.Errorf("error")) if !strings.Contains(buf.String(), span.TraceID()) { t.Fatalf("log does not contains tracer id: %s", buf.Bytes()) } _, _ = tr.Start(ctx, "test2") for _, s := range tr.Spans() { t.Logf("span %#+v\n", s) } }