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// Copyright 2012-present Oliver Eilhard. All rights reserved.
// Use of this source code is governed by a MIT-license.
// See http://olivere.mit-license.org/license.txt for details.
package elastic
import (
"context"
"errors"
"net/http"
"sync/atomic"
"testing"
"time"
)
type testRetrier struct {
Retrier
N int64
Err error
}
func (r *testRetrier) Retry(ctx context.Context, retry int, req *http.Request, resp *http.Response, err error) (time.Duration, bool, error) {
atomic.AddInt64(&r.N, 1)
if r.Err != nil {
return 0, false, r.Err
}
return r.Retrier.Retry(ctx, retry, req, resp, err)
}
func TestStopRetrier(t *testing.T) {
r := NewStopRetrier()
wait, ok, err := r.Retry(context.TODO(), 1, nil, nil, nil)
if want, got := 0*time.Second, wait; want != got {
t.Fatalf("expected %v, got %v", want, got)
}
if want, got := false, ok; want != got {
t.Fatalf("expected %v, got %v", want, got)
}
if err != nil {
t.Fatalf("expected nil, got %v", err)
}
}
func TestRetrier(t *testing.T) {
var numFailedReqs int
fail := func(r *http.Request) (*http.Response, error) {
numFailedReqs += 1
//return &http.Response{Request: r, StatusCode: 400}, nil
return nil, errors.New("request failed")
}
tr := &failingTransport{path: "/fail", fail: fail}
httpClient := &http.Client{Transport: tr}
retrier := &testRetrier{
Retrier: NewBackoffRetrier(NewSimpleBackoff(100, 100, 100, 100, 100)),
}
client, err := NewClient(
SetHttpClient(httpClient),
SetMaxRetries(5),
SetHealthcheck(false),
SetRetrier(retrier))
if err != nil {
t.Fatal(err)
}
res, err := client.PerformRequest(context.TODO(), PerformRequestOptions{
Method: "GET",
Path: "/fail",
})
if err == nil {
t.Fatal("expected error")
}
if res != nil {
t.Fatal("expected no response")
}
// Connection should be marked as dead after it failed
if numFailedReqs != 5 {
t.Errorf("expected %d failed requests; got: %d", 5, numFailedReqs)
}
if retrier.N != 5 {
t.Errorf("expected %d Retrier calls; got: %d", 5, retrier.N)
}
}
func TestRetrierWithError(t *testing.T) {
var numFailedReqs int
fail := func(r *http.Request) (*http.Response, error) {
numFailedReqs += 1
//return &http.Response{Request: r, StatusCode: 400}, nil
return nil, errors.New("request failed")
}
tr := &failingTransport{path: "/fail", fail: fail}
httpClient := &http.Client{Transport: tr}
kaboom := errors.New("kaboom")
retrier := &testRetrier{
Err: kaboom,
Retrier: NewBackoffRetrier(NewSimpleBackoff(100, 100, 100, 100, 100)),
}
client, err := NewClient(
SetHttpClient(httpClient),
SetMaxRetries(5),
SetHealthcheck(false),
SetRetrier(retrier))
if err != nil {
t.Fatal(err)
}
res, err := client.PerformRequest(context.TODO(), PerformRequestOptions{
Method: "GET",
Path: "/fail",
})
if err != kaboom {
t.Fatalf("expected %v, got %v", kaboom, err)
}
if res != nil {
t.Fatal("expected no response")
}
if numFailedReqs != 1 {
t.Errorf("expected %d failed requests; got: %d", 1, numFailedReqs)
}
if retrier.N != 1 {
t.Errorf("expected %d Retrier calls; got: %d", 1, retrier.N)
}
}
func TestRetrierOnPerformRequest(t *testing.T) {
var numFailedReqs int
fail := func(r *http.Request) (*http.Response, error) {
numFailedReqs += 1
//return &http.Response{Request: r, StatusCode: 400}, nil
return nil, errors.New("request failed")
}
tr := &failingTransport{path: "/fail", fail: fail}
httpClient := &http.Client{Transport: tr}
defaultRetrier := &testRetrier{
Retrier: NewStopRetrier(),
}
requestRetrier := &testRetrier{
Retrier: NewStopRetrier(),
}
client, err := NewClient(
SetHttpClient(httpClient),
SetHealthcheck(false),
SetRetrier(defaultRetrier))
if err != nil {
t.Fatal(err)
}
res, err := client.PerformRequest(context.TODO(), PerformRequestOptions{
Method: "GET",
Path: "/fail",
Retrier: requestRetrier,
})
if err == nil {
t.Fatal("expected error")
}
if res != nil {
t.Fatal("expected no response")
}
if want, have := int64(0), defaultRetrier.N; want != have {
t.Errorf("defaultRetrier: expected %d calls; got: %d", want, have)
}
if want, have := int64(1), requestRetrier.N; want != have {
t.Errorf("requestRetrier: expected %d calls; got: %d", want, have)
}
}
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