| // Copyright 2020 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| // +build !race |
| |
| package event_test |
| |
| import ( |
| "context" |
| "io/ioutil" |
| "testing" |
| |
| "golang.org/x/exp/event" |
| "golang.org/x/exp/event/adapter/logfmt" |
| ) |
| |
| func TestAllocs(t *testing.T) { |
| anInt := event.Label{Name: "int", Value: event.Int64Of(4)} |
| aString := event.Label{Name: "string", Value: event.StringOf("value")} |
| |
| e := event.NewExporter(logfmt.NewHandler(ioutil.Discard)) |
| ctx := event.WithExporter(context.Background(), e) |
| allocs := int(testing.AllocsPerRun(5, func() { |
| event.To(ctx).With(aString).With(anInt).Log("message") |
| })) |
| if allocs != 0 { |
| t.Errorf("Got %d allocs, expect 0", allocs) |
| } |
| } |