-
Notifications
You must be signed in to change notification settings - Fork 28.2k
/
encodeInto.any.js
157 lines (149 loc) · 4.58 KB
/
encodeInto.any.js
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
[
{
"input": "Hi",
"read": 0,
"destinationLength": 0,
"written": []
},
{
"input": "A",
"read": 1,
"destinationLength": 10,
"written": [0x41]
},
{
"input": "\u{1D306}", // "\uD834\uDF06"
"read": 2,
"destinationLength": 4,
"written": [0xF0, 0x9D, 0x8C, 0x86]
},
{
"input": "\u{1D306}A",
"read": 0,
"destinationLength": 3,
"written": []
},
{
"input": "\uD834A\uDF06A¥Hi",
"read": 5,
"destinationLength": 10,
"written": [0xEF, 0xBF, 0xBD, 0x41, 0xEF, 0xBF, 0xBD, 0x41, 0xC2, 0xA5]
},
{
"input": "A\uDF06",
"read": 2,
"destinationLength": 4,
"written": [0x41, 0xEF, 0xBF, 0xBD]
},
{
"input": "¥¥",
"read": 2,
"destinationLength": 4,
"written": [0xC2, 0xA5, 0xC2, 0xA5]
}
].forEach(testData => {
[
{
"bufferIncrease": 0,
"destinationOffset": 0,
"filler": 0
},
{
"bufferIncrease": 10,
"destinationOffset": 4,
"filler": 0
},
{
"bufferIncrease": 0,
"destinationOffset": 0,
"filler": 0x80
},
{
"bufferIncrease": 10,
"destinationOffset": 4,
"filler": 0x80
},
{
"bufferIncrease": 0,
"destinationOffset": 0,
"filler": "random"
},
{
"bufferIncrease": 10,
"destinationOffset": 4,
"filler": "random"
}
].forEach(destinationData => {
["ArrayBuffer", "SharedArrayBuffer"].forEach(arrayBufferOrSharedArrayBuffer => {
test(() => {
// Setup
const bufferLength = testData.destinationLength + destinationData.bufferIncrease,
destinationOffset = destinationData.destinationOffset,
destinationLength = testData.destinationLength,
destinationFiller = destinationData.filler,
encoder = new TextEncoder(),
buffer = new self[arrayBufferOrSharedArrayBuffer](bufferLength),
view = new Uint8Array(buffer, destinationOffset, destinationLength),
fullView = new Uint8Array(buffer),
control = new Array(bufferLength);
let byte = destinationFiller;
for (let i = 0; i < bufferLength; i++) {
if (destinationFiller === "random") {
byte = Math.floor(Math.random() * 256);
}
control[i] = byte;
fullView[i] = byte;
}
// It's happening
const result = encoder.encodeInto(testData.input, view);
// Basics
assert_equals(view.byteLength, destinationLength);
assert_equals(view.length, destinationLength);
// Remainder
assert_equals(result.read, testData.read);
assert_equals(result.written, testData.written.length);
for (let i = 0; i < bufferLength; i++) {
if (i < destinationOffset || i >= (destinationOffset + testData.written.length)) {
assert_equals(fullView[i], control[i]);
} else {
assert_equals(fullView[i], testData.written[i - destinationOffset]);
}
}
}, "encodeInto() into " + arrayBufferOrSharedArrayBuffer + " with " + testData.input + " and destination length " + testData.destinationLength + ", offset " + destinationData.destinationOffset + ", filler " + destinationData.filler);
})
});
});
[DataView,
Int8Array,
Int16Array,
Int32Array,
Uint16Array,
Uint32Array,
Uint8ClampedArray,
Float32Array,
Float64Array].forEach(view => {
["ArrayBuffer", "SharedArrayBuffer"].forEach((arrayBufferOrSharedArrayBuffer) => {
test(() => {
assert_throws_js(TypeError, () => new TextEncoder().encodeInto("", new view(new self[arrayBufferOrSharedArrayBuffer](0))));
}, "Invalid encodeInto() destination: " + view.name + ", backed by: " + arrayBufferOrSharedArrayBuffer);
});
});
["ArrayBuffer", "SharedArrayBuffer"].forEach((arrayBufferOrSharedArrayBuffer) => {
test(() => {
assert_throws_js(TypeError, () => new TextEncoder().encodeInto("", new self[arrayBufferOrSharedArrayBuffer](10)));
}, "Invalid encodeInto() destination: " + arrayBufferOrSharedArrayBuffer);
});
test(() => {
const buffer = new ArrayBuffer(10),
view = new Uint8Array(buffer);
let { read, written } = new TextEncoder().encodeInto("", view);
assert_equals(read, 0);
assert_equals(written, 0);
new MessageChannel().port1.postMessage(buffer, [buffer]);
({ read, written } = new TextEncoder().encodeInto("", view));
assert_equals(read, 0);
assert_equals(written, 0);
({ read, written } = new TextEncoder().encodeInto("test", view));
assert_equals(read, 0);
assert_equals(written, 0);
}, "encodeInto() and a detached output buffer");