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
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
// Copyright 2020 Northern.tech AS
//
// 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 artifact
import (
"bytes"
"io"
"io/ioutil"
"os"
"testing"
"github.com/stretchr/testify/assert"
)
const (
checksumData = "this is test checksum data"
sumData = "00beab03a67bac97343603854a374671e978a01a8791d1526cb75ae92967fd50"
checksumBigData = `ajkshfdkjahsdfjkahsdfkjhasdfkjhasdkjfaksjdfhakjsdhfaksjdh
asdfasdfjasdlfjaslkdjflkasjdflkasjdflkasjdflkajsdlfkjasldfjalksdjflkasdjflkasd
ajkshfdkjahsdfjkahsdfkjhasdfkjhasdkjfaksjdfhakjsdhfaksjdhfakjsdhfaksdjfhalksjd
asdfasdfjasdlfjaslkdjflkasjdflkasjdflkasjdflkajsdlfkjasldfjalksdjflkasdjflkasd
ajkshfdkjahsdfjkahsdfkjhasdfkjhasdkjfaksjdfhakjsdhfaksjdhfakjsdhfaksdjfhalksjd
asdfasdfjasdlfjaslkdjflkasjdflkasjdflkasjdflkajsdlfkjasldfjalksdjflkasdjflkasd
ajkshfdkjahsdfjkahsdfkjhasdfkjhasdkjfaksjdfhakjsdhfaksjdhfakjsdhfaksdjfhalksjd
asdfasdfjasdlfjaslkdjflkasjdflkasjdflkasjdflkajsdlfkjasldfjalksdjflkasdjflkasd
ajkshfdkjahsdfjkahsdfkjhasdfkjhasdkjfaksjdfhakjsdhfaksjdhfakjsdhfaksdjfhalksjd
asdfasdfjasdlfjaslkdjflkasjdflkasjdflkasjdflkajsdlfkjasldfjalksdjflkasdjflkasd
ajkshfdkjahsdfjkahsdfkjhasdfkjhasdkjfaksjdfhakjsdhfaksjdhfakjsdhfaksdjfhalksjd
asdfasdfjasdlfjaslkdjflkasjdflkasjdflkasjdflkajsdlfkjasldfjalksdjflkasdjflkasd
ajkshfdkjahsdfjkahsdfkjhasdfkjhasdkjfaksjdfhakjsdhfaksjdhfakjsdhfaksdjfhalksjd
asdfasdfjasdlfjaslkdjflkasjdflkasjdflkasjdflkajsdlfkjasldfjalksdjflkasdjflkasd
`
sumBigData = "1a21d16c585551950f516151c5caba996140b2c8f3390dac0d8042d5d96e5216"
)
// Taken from io packege for testing purposes
// copyBuffer is the actual implementation of Copy and CopyBuffer.
// if buf is nil, one is allocated.
func copyBuffer(dst io.Writer, src io.Reader) (written int64, err error) {
buf := make([]byte, 128)
for {
nr, er := src.Read(buf)
if nr > 0 {
nw, ew := dst.Write(buf[0:nr])
if nw > 0 {
written += int64(nw)
}
if ew != nil {
err = ew
break
}
if nr != nw {
err = io.ErrShortWrite
break
}
}
if er == io.EOF {
break
}
if er != nil {
err = er
break
}
}
return written, err
}
func TestChecksumWrite(t *testing.T) {
buf := bytes.NewBuffer(nil)
w := NewWriterChecksum(buf)
data := bytes.NewBuffer([]byte(checksumData))
n, err := io.Copy(w, data)
assert.NoError(t, err)
assert.Equal(t, int64(len(checksumData)), n)
assert.Equal(t, []byte(sumData), w.Checksum())
assert.Equal(t, checksumData, buf.String())
w = NewWriterChecksum(nil)
i, err := w.Write([]byte(checksumData))
assert.Error(t, err)
assert.Equal(t, 0, i)
assert.Nil(t, w.Checksum())
}
func TestChecksumRead(t *testing.T) {
sum := bytes.NewBuffer([]byte(checksumData))
r := NewReaderChecksum(sum, []byte(sumData))
n, err := io.Copy(ioutil.Discard, r)
assert.NoError(t, err)
assert.Equal(t, int64(len(checksumData)), n)
r = NewReaderChecksum(nil, nil)
n, err = io.Copy(ioutil.Discard, r)
assert.Error(t, err)
assert.Zero(t, n)
sum = bytes.NewBuffer([]byte(checksumData))
r = NewReaderChecksum(sum, []byte("12121212"))
_, err = io.Copy(ioutil.Discard, r)
assert.Error(t, err)
}
func TestChecksumReadBigData(t *testing.T) {
sum := bytes.NewBuffer([]byte(checksumBigData))
r := NewReaderChecksum(sum, []byte(sumBigData))
n, err := copyBuffer(ioutil.Discard, r)
assert.NoError(t, err)
assert.Equal(t, int64(len(checksumBigData)), n)
}
func TestStore(t *testing.T) {
s := NewChecksumStore()
err := s.Add("test", []byte("1234567890"))
assert.NoError(t, err)
sum, err := s.Get("test")
assert.NoError(t, err)
assert.Equal(t, []byte("1234567890"), sum)
// can not add the same sum multiple times
err = s.Add("test", []byte("1212121212"))
assert.Equal(t, err, os.ErrExist)
sum, err = s.Get("test")
assert.NoError(t, err)
assert.Equal(t, []byte("1234567890"), sum)
sum, err = s.Get("non-existing")
assert.Error(t, err)
assert.Nil(t, sum)
raw := s.GetRaw()
assert.Equal(t, raw, []byte("1234567890 test\n"))
// already exists
err = s.ReadRaw([]byte("1234567890 test\n"))
assert.Equal(t, err, os.ErrExist)
assert.Equal(t, []byte("1234567890 test\n"), s.GetRaw())
err = s.ReadRaw([]byte("1212121212 version\n"))
assert.NoError(t, err)
assert.Equal(t, []byte("1234567890 test\n1212121212 version\n"), s.GetRaw())
// malformed input
err = s.ReadRaw([]byte("1212121212\n"))
assert.Error(t, err)
assert.Equal(t, []byte("1234567890 test\n1212121212 version\n"), s.GetRaw())
}
|
