-
Notifications
You must be signed in to change notification settings - Fork 122
/
webp_test.go
224 lines (195 loc) · 6.68 KB
/
webp_test.go
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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
package lilliput
import (
"os"
"reflect"
"testing"
)
const (
destinationBufferSize = 10 * 1024 * 1024
)
func TestNewWebpDecoder(t *testing.T) {
var testWebPImage []byte
var err error
var decoder *webpDecoder
testWebPImage, err = os.ReadFile("testdata/tears_of_steel_no_icc.webp")
if err != nil {
t.Errorf("Unexpected error while reading webp image: %v", err)
}
decoder, err = newWebpDecoder(testWebPImage)
if err != nil {
t.Errorf("Unexpected error while decoding webp image data: %v", err)
}
decoder.Close()
}
func TestWebpDecoder_Header(t *testing.T) {
var testWebPImage []byte
var err error
var decoder *webpDecoder
var header *ImageHeader
if testWebPImage, err = os.ReadFile("testdata/tears_of_steel_no_icc.webp"); err != nil {
t.Errorf("Unexpected error while reading webp image: %v", err)
}
if decoder, err = newWebpDecoder(testWebPImage); err != nil {
t.Errorf("Unexpected error while decoding webp image data: %v", err)
}
if header, err = decoder.Header(); err != nil {
t.Errorf("Unexpected error: %v", err)
}
if reflect.TypeOf(header).String() != "*lilliput.ImageHeader" {
t.Errorf("Expected type *lilliput.ImageHeader, got %v", reflect.TypeOf(header))
}
decoder.Close()
}
func TestNewWebpEncoder(t *testing.T) {
var err error
var testWebPImage []byte
var decoder *webpDecoder
var encoder *webpEncoder
// TEST: no ICC Profile Data
testWebPImage, err = os.ReadFile("testdata/tears_of_steel_no_icc.webp")
if err != nil {
t.Errorf("Unexpected error while reading webp image: %v", err)
}
if decoder, err = newWebpDecoder(testWebPImage); err != nil {
t.Errorf("Unexpected error while decoding webp image data: %v", err)
}
dstBuf := make([]byte, destinationBufferSize)
encoder, err = newWebpEncoder(decoder, dstBuf)
if err != nil {
t.Errorf("Unexpected error: %v", err)
}
decoder.Close()
encoder.Close()
// TEST: with ICC Profile Data
if testWebPImage, err = os.ReadFile("testdata/tears_of_steel_icc.webp"); err != nil {
t.Errorf("Unexpected error while reading webp image: %v", err)
}
if decoder, err = newWebpDecoder(testWebPImage); err != nil {
t.Errorf("Unexpected error while decoding webp image data: %v", err)
}
dstBuf = make([]byte, destinationBufferSize)
if encoder, err = newWebpEncoder(decoder, dstBuf); err != nil {
t.Errorf("Unexpected error: %v", err)
}
decoder.Close()
encoder.Close()
}
func TestWebpDecoder_DecodeTo(t *testing.T) {
var testWebPImage []byte
var err error
var decoder *webpDecoder
var header *ImageHeader
var framebuffer *Framebuffer
// TEST: no ICC profile data
testWebPImage, err = os.ReadFile("testdata/tears_of_steel_no_icc.webp")
if err != nil {
t.Fatalf("Failed to read webp image: %v", err)
}
if decoder, err = newWebpDecoder(testWebPImage); err != nil {
t.Fatalf("Failed to create a new webp decoder: %v", err)
}
defer decoder.Close()
if header, err = decoder.Header(); err != nil {
t.Fatalf("Failed to get the header: %v", err)
}
framebuffer = NewFramebuffer(header.width, header.height)
if err = decoder.DecodeTo(framebuffer); err != nil {
t.Errorf("DecodeTo failed unexpectedly: %v", err)
}
// TEST: with ICC profile data
if testWebPImage, err = os.ReadFile("testdata/tears_of_steel_icc.webp"); err != nil {
t.Fatalf("Failed to read webp image: %v", err)
}
if decoder, err = newWebpDecoder(testWebPImage); err != nil {
t.Fatalf("Failed to create a new webp decoder: %v", err)
}
decoder.Close()
// TEST: an invalid framebuffer
if err = decoder.DecodeTo(nil); err == nil {
t.Error("DecodeTo with nil framebuffer should fail, but it did not")
}
}
func TestWebpEncoder_Encode(t *testing.T) {
var testWebPImage, dstBuf, encodedData []byte
var err error
var decoder *webpDecoder
var framebuffer *Framebuffer
var header *ImageHeader
var options map[int]int
var encoder *webpEncoder
// TEST: no ICC profile data
if testWebPImage, err = os.ReadFile("testdata/tears_of_steel_no_icc.webp"); err != nil {
t.Fatalf("Failed to read webp image: %v", err)
}
if decoder, err = newWebpDecoder(testWebPImage); err != nil {
t.Fatalf("Failed to create a new webp decoder: %v", err)
}
if header, err = decoder.Header(); err != nil {
t.Fatalf("Failed to get the header: %v", err)
}
framebuffer = NewFramebuffer(header.width, header.height)
if err = framebuffer.resizeMat(header.width, header.height, header.pixelType); err != nil {
t.Fatalf("Failed to resize the framebuffer: %v", err)
}
dstBuf = make([]byte, destinationBufferSize)
if encoder, err = newWebpEncoder(decoder, dstBuf); err != nil {
t.Fatalf("Failed to create a new webp encoder: %v", err)
}
options = map[int]int{}
if encodedData, err = encoder.Encode(framebuffer, options); err != nil {
t.Fatalf("Encode failed unexpectedly: %v", err)
}
if len(encodedData) == 0 {
t.Fatalf("Encoded data is empty, but it should not be")
}
decoder.Close()
encoder.Close()
// TEST: with ICC profile data
if testWebPImage, err = os.ReadFile("testdata/tears_of_steel_icc.webp"); err != nil {
t.Fatalf("Failed to read webp image: %v", err)
}
if decoder, err = newWebpDecoder(testWebPImage); err != nil {
t.Fatalf("Failed to create a new webp decoder: %v", err)
}
dstBuf = make([]byte, destinationBufferSize)
if encoder, err = newWebpEncoder(decoder, dstBuf); err != nil {
t.Fatalf("Failed to create a new webp encoder: %v", err)
}
header, _ = decoder.Header()
framebuffer = NewFramebuffer(header.width, header.height)
options = map[int]int{}
if err = framebuffer.resizeMat(header.width, header.height, header.pixelType); err != nil {
t.Fatalf("Failed to resize the framebuffer: %v", err)
}
t.Log("Encoding the framebuffer")
if encodedData, err = encoder.Encode(framebuffer, options); err != nil {
t.Fatalf("Encode failed unexpectedly: %v", err)
}
if len(encodedData) == 0 {
t.Fatalf("Encoded data is empty, but it should not be")
}
decoder.Close()
encoder.Close()
// TEST: nil framebuffer
if testWebPImage, err = os.ReadFile("testdata/tears_of_steel_icc.webp"); err != nil {
t.Fatalf("Failed to read webp image: %v", err)
}
if decoder, err = newWebpDecoder(testWebPImage); err != nil {
t.Fatalf("Failed to create a new webp decoder: %v", err)
}
dstBuf = make([]byte, destinationBufferSize)
if encoder, err = newWebpEncoder(decoder, dstBuf); err != nil {
t.Fatalf("Failed to create a new webp encoder: %v", err)
}
header, _ = decoder.Header()
framebuffer = NewFramebuffer(header.width, header.height)
options = map[int]int{}
if err = framebuffer.resizeMat(header.width, header.height, header.pixelType); err != nil {
t.Fatalf("Failed to resize the framebuffer: %v", err)
}
if _, err = encoder.Encode(nil, options); err == nil {
t.Error("Encoding a nil framebuffer should fail, but it did not")
}
decoder.Close()
encoder.Close()
}