1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/*
Copyright The ocicrypt Authors.
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 utils
import (
"bytes"
"io"
"reflect"
"testing"
)
func makeRangeExp(n int) []int {
var res []int
for i := 0; i < n; i++ {
res = append(res, 1<<uint(i))
}
return res
}
func makeRange(lo, hi int) []int {
var res []int
for i := lo; i < hi; i++ {
res = append(res, i)
}
return res
}
func TestDelayedReader(t *testing.T) {
buf := make([]byte, 10)
for _, buflen := range makeRangeExp(20) {
obuf := make([]byte, buflen)
for _, bufsize := range makeRange(2, 32) {
r := bytes.NewReader(obuf)
dr := NewDelayedReader(r, uint(bufsize))
var ibuf []byte
for {
n, err := dr.Read(buf)
if n == 0 {
t.Fatal("Did not expect n == 0")
}
if err != nil && err != io.EOF {
t.Fatal(err)
}
ibuf = append(ibuf, buf[:n]...)
if err == io.EOF {
break
}
}
if !reflect.DeepEqual(ibuf, obuf) {
t.Fatalf("original buffer (len=%d) != received buffer (len=%d)", len(obuf), len(ibuf))
}
}
}
}
|
