/
client.go
135 lines (110 loc) · 3.7 KB
/
client.go
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/*
Copyright Agoda Services Co.,Ltd.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package otlplogstest
import (
"context"
"errors"
"sync"
"testing"
"time"
"github.com/agoda-com/opentelemetry-logs-go/exporters/otlp/otlplogs"
)
func RunExporterShutdownTest(t *testing.T, factory func() otlplogs.Client) {
t.Run("testClientStopHonorsTimeout", func(t *testing.T) {
testClientStopHonorsTimeout(t, factory())
})
t.Run("testClientStopHonorsCancel", func(t *testing.T) {
testClientStopHonorsCancel(t, factory())
})
t.Run("testClientStopNoError", func(t *testing.T) {
testClientStopNoError(t, factory())
})
t.Run("testClientStopManyTimes", func(t *testing.T) {
testClientStopManyTimes(t, factory())
})
}
func initializeExporter(t *testing.T, client otlplogs.Client) *otlplogs.Exporter {
ctx, cancel := context.WithTimeout(context.Background(), 1*time.Minute)
defer cancel()
e, err := otlplogs.NewExporter(ctx, otlplogs.WithClient(client))
if err != nil {
t.Fatalf("failed to create exporter")
}
return e
}
func testClientStopHonorsTimeout(t *testing.T, client otlplogs.Client) {
t.Cleanup(func() {
// The test is looking for a failed shut down. Call Stop a second time
// with an un-expired context to give the client a second chance at
// cleaning up. There is not guarantee from the Client interface this
// will succeed, therefore, no need to check the error (just give it a
// best try).
_ = client.Stop(context.Background())
})
e := initializeExporter(t, client)
ctx, cancel := context.WithTimeout(context.Background(), time.Nanosecond)
defer cancel()
<-ctx.Done()
if err := e.Shutdown(ctx); !errors.Is(err, context.DeadlineExceeded) {
t.Errorf("expected context DeadlineExceeded error, got %v", err)
}
}
func testClientStopHonorsCancel(t *testing.T, client otlplogs.Client) {
t.Cleanup(func() {
// The test is looking for a failed shut down. Call Stop a second time
// with an un-expired context to give the client a second chance at
// cleaning up. There is not guarantee from the Client interface this
// will succeed, therefore, no need to check the error (just give it a
// best try).
_ = client.Stop(context.Background())
})
e := initializeExporter(t, client)
ctx, cancel := context.WithCancel(context.Background())
cancel()
if err := e.Shutdown(ctx); !errors.Is(err, context.Canceled) {
t.Errorf("expected context canceled error, got %v", err)
}
}
func testClientStopNoError(t *testing.T, client otlplogs.Client) {
e := initializeExporter(t, client)
ctx, cancel := context.WithTimeout(context.Background(), 1*time.Minute)
defer cancel()
if err := e.Shutdown(ctx); err != nil {
t.Errorf("shutdown errored: expected nil, got %v", err)
}
}
func testClientStopManyTimes(t *testing.T, client otlplogs.Client) {
e := initializeExporter(t, client)
ctx, cancel := context.WithTimeout(context.Background(), 1*time.Minute)
defer cancel()
ch := make(chan struct{})
wg := sync.WaitGroup{}
const num int = 20
wg.Add(num)
errs := make([]error, num)
for i := 0; i < num; i++ {
go func(idx int) {
defer wg.Done()
<-ch
errs[idx] = e.Shutdown(ctx)
}(i)
}
close(ch)
wg.Wait()
for _, err := range errs {
if err != nil {
t.Errorf("failed to shutdown exporter: %v", err)
return
}
}
}