1// Copyright 2012-present Oliver Eilhard. All rights reserved.
2// Use of this source code is governed by a MIT-license.
3// See http://olivere.mit-license.org/license.txt for details.
4
5// This file is based on code that is (c) 2014 Cenk Altı and governed
6// by the MIT license.
7// See https://github.com/cenkalti/backoff for original source.
8
9package elastic
10
11import (
12	"errors"
13	"testing"
14	"time"
15)
16
17func TestRetry(t *testing.T) {
18	const successOn = 3
19	var i = 0
20
21	// This function is successful on "successOn" calls.
22	f := func() error {
23		i++
24		// t.Logf("function is called %d. time\n", i)
25
26		if i == successOn {
27			// t.Log("OK")
28			return nil
29		}
30
31		// t.Log("error")
32		return errors.New("error")
33	}
34
35	min := time.Duration(8) * time.Millisecond
36	max := time.Duration(256) * time.Millisecond
37	err := Retry(f, NewExponentialBackoff(min, max))
38	if err != nil {
39		t.Errorf("unexpected error: %s", err.Error())
40	}
41	if i != successOn {
42		t.Errorf("invalid number of retries: %d", i)
43	}
44}
45