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// 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.
package event_test
import (
"context"
"io"
"testing"
"golang.org/x/exp/event"
"golang.org/x/exp/event/adapter/logfmt"
"golang.org/x/exp/event/eventtest"
"golang.org/x/exp/event/severity"
)
var (
eventLog = eventtest.Hooks{
AStart: func(ctx context.Context, a int) context.Context {
severity.Info.Log(ctx, eventtest.A.Msg, event.Int64(eventtest.A.Name, int64(a)))
return ctx
},
AEnd: func(ctx context.Context) {},
BStart: func(ctx context.Context, b string) context.Context {
severity.Info.Log(ctx, eventtest.B.Msg, event.String(eventtest.B.Name, b))
return ctx
},
BEnd: func(ctx context.Context) {},
}
eventLogf = eventtest.Hooks{
AStart: func(ctx context.Context, a int) context.Context {
severity.Info.Logf(ctx, eventtest.A.Msgf, a)
return ctx
},
AEnd: func(ctx context.Context) {},
BStart: func(ctx context.Context, b string) context.Context {
severity.Info.Logf(ctx, eventtest.B.Msgf, b)
return ctx
},
BEnd: func(ctx context.Context) {},
}
eventTrace = eventtest.Hooks{
AStart: func(ctx context.Context, a int) context.Context {
ctx = event.Start(ctx, eventtest.A.Msg, event.Int64(eventtest.A.Name, int64(a)))
return ctx
},
AEnd: func(ctx context.Context) {
event.End(ctx)
},
BStart: func(ctx context.Context, b string) context.Context {
ctx = event.Start(ctx, eventtest.B.Msg, event.String(eventtest.B.Name, b))
return ctx
},
BEnd: func(ctx context.Context) {
event.End(ctx)
},
}
eventMetric = eventtest.Hooks{
AStart: func(ctx context.Context, a int) context.Context {
gauge.Record(ctx, 1, event.Int64("aValue", int64(a)))
gauge.Record(ctx, 1, event.Int64("aCount", 1))
return ctx
},
AEnd: func(ctx context.Context) {},
BStart: func(ctx context.Context, b string) context.Context {
gauge.Record(ctx, 1, event.Int64("BLen", int64(len(b))))
gauge.Record(ctx, 1, event.Int64("B", 1))
return ctx
},
BEnd: func(ctx context.Context) {},
}
)
func eventNoExporter() context.Context {
return event.WithExporter(context.Background(), nil)
}
func eventNoop() context.Context {
return event.WithExporter(context.Background(), event.NewExporter(nopHandler{}, eventtest.ExporterOptions()))
}
func eventPrint(w io.Writer) context.Context {
return event.WithExporter(context.Background(), event.NewExporter(logfmt.NewHandler(w), eventtest.ExporterOptions()))
}
func eventPrintSource(w io.Writer) context.Context {
opts := eventtest.ExporterOptions()
opts.EnableNamespaces = true
return event.WithExporter(context.Background(), event.NewExporter(logfmt.NewHandler(w), opts))
}
type nopHandler struct{}
func (nopHandler) Event(ctx context.Context, _ *event.Event) context.Context { return ctx }
func BenchmarkEventLogNoExporter(b *testing.B) {
eventtest.RunBenchmark(b, eventNoExporter(), eventLog)
}
func BenchmarkEventLogNoop(b *testing.B) {
eventtest.RunBenchmark(b, eventNoop(), eventLog)
}
func BenchmarkEventLogDiscard(b *testing.B) {
eventtest.RunBenchmark(b, eventPrint(io.Discard), eventLog)
}
func BenchmarkEventLogSourceDiscard(b *testing.B) {
eventtest.RunBenchmark(b, eventPrintSource(io.Discard), eventLog)
}
func BenchmarkEventLogfDiscard(b *testing.B) {
eventtest.RunBenchmark(b, eventPrint(io.Discard), eventLogf)
}
func BenchmarkEventTraceNoop(b *testing.B) {
eventtest.RunBenchmark(b, eventNoop(), eventTrace)
}
func BenchmarkEventTraceDiscard(b *testing.B) {
eventtest.RunBenchmark(b, eventPrint(io.Discard), eventTrace)
}
func BenchmarkEventMetricNoop(b *testing.B) {
eventtest.RunBenchmark(b, eventNoop(), eventMetric)
}
func BenchmarkEventMetricDiscard(b *testing.B) {
eventtest.RunBenchmark(b, eventPrint(io.Discard), eventMetric)
}
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