aaac7fed
 liuqimichale
add
|
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
|
var test = require('tape')
var b64 = require('../')
var checks = [
'a',
'aa',
'aaa',
'hi',
'hi!',
'hi!!',
'sup',
'sup?',
'sup?!'
]
test('convert to base64 and back', function (t) {
t.plan(checks.length * 2)
for (var i = 0; i < checks.length; i++) {
var check = checks[i]
var b64Str, arr, str
b64Str = b64.fromByteArray(map(check, function (char) { return char.charCodeAt(0) }))
arr = b64.toByteArray(b64Str)
str = map(arr, function (byte) { return String.fromCharCode(byte) }).join('')
t.equal(check, str, 'Checked ' + check)
t.equal(b64.byteLength(b64Str), arr.length, 'Checked length for ' + check)
}
})
var data = [
[[0, 0, 0], 'AAAA'],
[[0, 0, 1], 'AAAB'],
[[0, 1, -1], 'AAH/'],
[[1, 1, 1], 'AQEB'],
[[0, -73, 23], 'ALcX']
]
test('convert known data to string', function (t) {
for (var i = 0; i < data.length; i++) {
var bytes = data[i][0]
var expected = data[i][1]
var actual = b64.fromByteArray(bytes)
t.equal(actual, expected, 'Ensure that ' + bytes + ' serialise to ' + expected)
}
t.end()
})
test('convert known data from string', function (t) {
for (var i = 0; i < data.length; i++) {
var expected = data[i][0]
var string = data[i][1]
var actual = b64.toByteArray(string)
t.ok(equal(actual, expected), 'Ensure that ' + string + ' deserialise to ' + expected)
var length = b64.byteLength(string)
t.equal(length, expected.length, 'Ensure that ' + string + ' has byte lentgh of ' + expected.length)
}
t.end()
})
function equal (a, b) {
var i
var length = a.length
if (length !== b.length) return false
for (i = 0; i < length; ++i) {
if ((a[i] & 0xFF) !== (b[i] & 0xFF)) return false
}
return true
}
function map (arr, callback) {
var res = []
var kValue, mappedValue
for (var k = 0, len = arr.length; k < len; k++) {
if ((typeof arr === 'string' && !!arr.charAt(k))) {
kValue = arr.charAt(k)
mappedValue = callback(kValue, k, arr)
res[k] = mappedValue
} else if (typeof arr !== 'string' && k in arr) {
kValue = arr[k]
mappedValue = callback(kValue, k, arr)
res[k] = mappedValue
}
}
return res
}
|
