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
|
/*-
* Copyright 2014 Square Inc.
*
* 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 jose
import (
"bytes"
"crypto/rand"
"io"
"strings"
"testing"
)
func TestDeflateRoundtrip(t *testing.T) {
original := []byte("Lorem ipsum dolor sit amet")
compressed, err := deflate(original)
if err != nil {
panic(err)
}
output, err := inflate(compressed)
if err != nil {
panic(err)
}
if !bytes.Equal(output, original) {
t.Error("Input and output do not match")
}
}
func TestInvalidCompression(t *testing.T) {
_, err := compress("XYZ", []byte{})
if err == nil {
t.Error("should not accept invalid algorithm")
}
_, err = decompress("XYZ", []byte{})
if err == nil {
t.Error("should not accept invalid algorithm")
}
_, err = decompress(DEFLATE, []byte{1, 2, 3, 4})
if err == nil {
t.Error("should not accept invalid data")
}
}
// TestLargeZip tests that we can decompress a large input, so long as its
// compression ratio is reasonable.
func TestLargeZip(t *testing.T) {
input := new(bytes.Buffer)
_, err := io.CopyN(input, rand.Reader, 251_000)
if err != nil {
t.Fatalf("generating input: %s", err)
}
compressed, err := compress(DEFLATE, input.Bytes())
if err != nil {
t.Errorf("compressing: %s", err)
}
t.Logf("compression ratio: %g", float64(len(input.Bytes()))/float64(len(compressed)))
_, err = decompress(DEFLATE, compressed)
if err != nil {
t.Errorf("decompressing large input with low compression ratio: %s", err)
}
}
func TestZipBomb(t *testing.T) {
input := strings.Repeat("a", 251_000)
compressed, err := compress(DEFLATE, []byte(input))
if err != nil {
t.Errorf("compressing: %s", err)
}
t.Logf("compression ratio: %d %g", len(compressed), float64(len(input))/float64(len(compressed)))
out, err := decompress(DEFLATE, compressed)
if err == nil {
t.Errorf("expected error decompressing zip bomb, got none. output size %d", len(out))
}
}
func TestByteBufferTrim(t *testing.T) {
buf := newBufferFromInt(1)
if !bytes.Equal(buf.data, []byte{1}) {
t.Error("Byte buffer for integer '1' should contain [0x01]")
}
buf = newBufferFromInt(65537)
if !bytes.Equal(buf.data, []byte{1, 0, 1}) {
t.Error("Byte buffer for integer '65537' should contain [0x01, 0x00, 0x01]")
}
}
func TestFixedSizeBuffer(t *testing.T) {
data0 := []byte{}
data1 := []byte{1}
data2 := []byte{1, 2}
data3 := []byte{1, 2, 3}
data4 := []byte{1, 2, 3, 4}
buf0 := newFixedSizeBuffer(data0, 4)
buf1 := newFixedSizeBuffer(data1, 4)
buf2 := newFixedSizeBuffer(data2, 4)
buf3 := newFixedSizeBuffer(data3, 4)
buf4 := newFixedSizeBuffer(data4, 4)
if !bytes.Equal(buf0.data, []byte{0, 0, 0, 0}) {
t.Error("Invalid padded buffer for buf0")
}
if !bytes.Equal(buf1.data, []byte{0, 0, 0, 1}) {
t.Error("Invalid padded buffer for buf1")
}
if !bytes.Equal(buf2.data, []byte{0, 0, 1, 2}) {
t.Error("Invalid padded buffer for buf2")
}
if !bytes.Equal(buf3.data, []byte{0, 1, 2, 3}) {
t.Error("Invalid padded buffer for buf3")
}
if !bytes.Equal(buf4.data, []byte{1, 2, 3, 4}) {
t.Error("Invalid padded buffer for buf4")
}
}
func TestSerializeJSONRejectsNil(t *testing.T) {
defer func() {
r := recover()
if r == nil || !strings.Contains(r.(string), "nil pointer") {
t.Error("serialize function should not accept nil pointer")
}
}()
mustSerializeJSON(nil)
}
func TestFixedSizeBufferTooLarge(t *testing.T) {
defer func() {
r := recover()
if r == nil {
t.Error("should not be able to create fixed size buffer with oversized data")
}
}()
newFixedSizeBuffer(make([]byte, 2), 1)
}
|
