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
|
'use strict';
require('../common');
const buffer = require('buffer');
const assert = require('assert');
const orig = Buffer.from('tést €', 'utf8');
// Test Transcoding
const tests = {
'latin1': [0x74, 0xe9, 0x73, 0x74, 0x20, 0x3f],
'ascii': [0x74, 0x3f, 0x73, 0x74, 0x20, 0x3f],
'ucs2': [0x74, 0x00, 0xe9, 0x00, 0x73,
0x00, 0x74, 0x00, 0x20, 0x00,
0xac, 0x20]
};
for (const test in tests) {
const dest = buffer.transcode(orig, 'utf8', test);
assert.strictEqual(dest.length, tests[test].length);
for (var n = 0; n < tests[test].length; n++)
assert.strictEqual(dest[n], tests[test][n]);
}
{
const dest = buffer.transcode(Buffer.from(tests.ucs2), 'ucs2', 'utf8');
assert.strictEqual(dest.toString(), orig.toString());
}
{
const utf8 = Buffer.from('€'.repeat(4000), 'utf8');
const ucs2 = Buffer.from('€'.repeat(4000), 'ucs2');
const utf8_to_ucs2 = buffer.transcode(utf8, 'utf8', 'ucs2');
const ucs2_to_utf8 = buffer.transcode(ucs2, 'ucs2', 'utf8');
assert.deepStrictEqual(utf8, ucs2_to_utf8);
assert.deepStrictEqual(ucs2, utf8_to_ucs2);
assert.strictEqual(ucs2_to_utf8.toString('utf8'),
utf8_to_ucs2.toString('ucs2'));
}
assert.throws(
() => buffer.transcode(null, 'utf8', 'ascii'),
/^TypeError: "source" argument must be a Buffer or Uint8Array$/
);
assert.throws(
() => buffer.transcode(Buffer.from('a'), 'b', 'utf8'),
/^Error: Unable to transcode Buffer \[U_ILLEGAL_ARGUMENT_ERROR\]/
);
assert.throws(
() => buffer.transcode(Buffer.from('a'), 'uf8', 'b'),
/^Error: Unable to transcode Buffer \[U_ILLEGAL_ARGUMENT_ERROR\]$/
);
assert.deepStrictEqual(
buffer.transcode(Buffer.from('hi', 'ascii'), 'ascii', 'utf16le'),
Buffer.from('hi', 'utf16le'));
assert.deepStrictEqual(
buffer.transcode(Buffer.from('hi', 'latin1'), 'latin1', 'utf16le'),
Buffer.from('hi', 'utf16le'));
assert.deepStrictEqual(
buffer.transcode(Buffer.from('hä', 'latin1'), 'latin1', 'utf16le'),
Buffer.from('hä', 'utf16le'));
// Test that Uint8Array arguments are okay.
{
const uint8array = new Uint8Array([...Buffer.from('hä', 'latin1')]);
assert.deepStrictEqual(
buffer.transcode(uint8array, 'latin1', 'utf16le'),
Buffer.from('hä', 'utf16le'));
}
|
