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1'use strict';
2
3// From: https://github.com/w3c/web-platform-tests/blob/39a67e2fff/encoding/textdecoder-fatal.html
4// With the twist that we specifically test for Node.js error codes
5
6const common = require('../common');
7
8if (!common.hasIntl)
9  common.skip('missing Intl');
10
11const assert = require('assert');
12
13const bad = [
14  { encoding: 'utf-8', input: [0xFF], name: 'invalid code' },
15  { encoding: 'utf-8', input: [0xC0], name: 'ends early' },
16  { encoding: 'utf-8', input: [0xE0], name: 'ends early 2' },
17  { encoding: 'utf-8', input: [0xC0, 0x00], name: 'invalid trail' },
18  { encoding: 'utf-8', input: [0xC0, 0xC0], name: 'invalid trail 2' },
19  { encoding: 'utf-8', input: [0xE0, 0x00], name: 'invalid trail 3' },
20  { encoding: 'utf-8', input: [0xE0, 0xC0], name: 'invalid trail 4' },
21  { encoding: 'utf-8', input: [0xE0, 0x80, 0x00], name: 'invalid trail 5' },
22  { encoding: 'utf-8', input: [0xE0, 0x80, 0xC0], name: 'invalid trail 6' },
23  { encoding: 'utf-8', input: [0xFC, 0x80, 0x80, 0x80, 0x80, 0x80],
24    name: '> 0x10FFFF' },
25  { encoding: 'utf-8', input: [0xFE, 0x80, 0x80, 0x80, 0x80, 0x80],
26    name: 'obsolete lead byte' },
27  // Overlong encodings
28  { encoding: 'utf-8', input: [0xC0, 0x80], name: 'overlong U+0000 - 2 bytes' },
29  { encoding: 'utf-8', input: [0xE0, 0x80, 0x80],
30    name: 'overlong U+0000 - 3 bytes' },
31  { encoding: 'utf-8', input: [0xF0, 0x80, 0x80, 0x80],
32    name: 'overlong U+0000 - 4 bytes' },
33  { encoding: 'utf-8', input: [0xF8, 0x80, 0x80, 0x80, 0x80],
34    name: 'overlong U+0000 - 5 bytes' },
35  { encoding: 'utf-8', input: [0xFC, 0x80, 0x80, 0x80, 0x80, 0x80],
36    name: 'overlong U+0000 - 6 bytes' },
37  { encoding: 'utf-8', input: [0xC1, 0xBF], name: 'overlong U+007F - 2 bytes' },
38  { encoding: 'utf-8', input: [0xE0, 0x81, 0xBF],
39    name: 'overlong U+007F - 3 bytes' },
40  { encoding: 'utf-8', input: [0xF0, 0x80, 0x81, 0xBF],
41    name: 'overlong U+007F - 4 bytes' },
42  { encoding: 'utf-8', input: [0xF8, 0x80, 0x80, 0x81, 0xBF],
43    name: 'overlong U+007F - 5 bytes' },
44  { encoding: 'utf-8', input: [0xFC, 0x80, 0x80, 0x80, 0x81, 0xBF],
45    name: 'overlong U+007F - 6 bytes' },
46  { encoding: 'utf-8', input: [0xE0, 0x9F, 0xBF],
47    name: 'overlong U+07FF - 3 bytes' },
48  { encoding: 'utf-8', input: [0xF0, 0x80, 0x9F, 0xBF],
49    name: 'overlong U+07FF - 4 bytes' },
50  { encoding: 'utf-8', input: [0xF8, 0x80, 0x80, 0x9F, 0xBF],
51    name: 'overlong U+07FF - 5 bytes' },
52  { encoding: 'utf-8', input: [0xFC, 0x80, 0x80, 0x80, 0x9F, 0xBF],
53    name: 'overlong U+07FF - 6 bytes' },
54  { encoding: 'utf-8', input: [0xF0, 0x8F, 0xBF, 0xBF],
55    name: 'overlong U+FFFF - 4 bytes' },
56  { encoding: 'utf-8', input: [0xF8, 0x80, 0x8F, 0xBF, 0xBF],
57    name: 'overlong U+FFFF - 5 bytes' },
58  { encoding: 'utf-8', input: [0xFC, 0x80, 0x80, 0x8F, 0xBF, 0xBF],
59    name: 'overlong U+FFFF - 6 bytes' },
60  { encoding: 'utf-8', input: [0xF8, 0x84, 0x8F, 0xBF, 0xBF],
61    name: 'overlong U+10FFFF - 5 bytes' },
62  { encoding: 'utf-8', input: [0xFC, 0x80, 0x84, 0x8F, 0xBF, 0xBF],
63    name: 'overlong U+10FFFF - 6 bytes' },
64  // UTF-16 surrogates encoded as code points in UTF-8
65  { encoding: 'utf-8', input: [0xED, 0xA0, 0x80], name: 'lead surrogate' },
66  { encoding: 'utf-8', input: [0xED, 0xB0, 0x80], name: 'trail surrogate' },
67  { encoding: 'utf-8', input: [0xED, 0xA0, 0x80, 0xED, 0xB0, 0x80],
68    name: 'surrogate pair' },
69  { encoding: 'utf-16le', input: [0x00], name: 'truncated code unit' },
70  // Mismatched UTF-16 surrogates are exercised in utf16-surrogates.html
71  // FIXME: Add legacy encoding cases
72];
73
74bad.forEach((t) => {
75  assert.throws(
76    () => {
77      new TextDecoder(t.encoding, { fatal: true })
78        .decode(new Uint8Array(t.input));
79    }, {
80      code: 'ERR_ENCODING_INVALID_ENCODED_DATA',
81      name: 'TypeError'
82    }
83  );
84});
85