1
common = require("../common");
4
Buffer = require('buffer').Buffer;
5
StringDecoder = require('string_decoder').StringDecoder;
6
decoder = new StringDecoder('utf8');
10
buffer = new Buffer('$');
11
assert.deepEqual('$', decoder.write(buffer));
13
buffer = new Buffer('¢');
14
assert.deepEqual('', decoder.write(buffer.slice(0, 1)));
15
assert.deepEqual('¢', decoder.write(buffer.slice(1, 2)));
17
buffer = new Buffer('€');
18
assert.deepEqual('', decoder.write(buffer.slice(0, 1)));
19
assert.deepEqual('', decoder.write(buffer.slice(1, 2)));
20
assert.deepEqual('€', decoder.write(buffer.slice(2, 3)));
22
buffer = new Buffer([0xF0, 0xA4, 0xAD, 0xA2]);
24
s += decoder.write(buffer.slice(0, 1));
25
s += decoder.write(buffer.slice(1, 2));
26
s += decoder.write(buffer.slice(2, 3));
27
s += decoder.write(buffer.slice(3, 4));
28
assert.ok(s.length > 0);
30
// A mixed ascii and non-ascii string
31
// Test stolen from deps/v8/test/cctest/test-strings.cc
37
expected = "\u02e4\u0064\u12e4\u0030\u3045";
38
buffer = new Buffer([0xCB, 0xA4, 0x64, 0xE1, 0x8B, 0xA4, 0x30, 0xE3, 0x81, 0x85]);
39
charLengths = [0, 0, 1, 2, 2, 2, 3, 4, 4, 4, 5, 5];
41
// Split the buffer into 3 segments
42
// |----|------|-------|
43
// 0 i j buffer.length
44
// Scan through every possible 3 segment combination
45
// and make sure that the string is always parsed.
46
common.print('scanning ');
47
for (var j = 2; j < buffer.length; j++) {
48
for (var i = 1; i < j; i++) {
49
var decoder = new StringDecoder('utf8');
51
var sum = decoder.write(buffer.slice(0, i));
53
// just check that we've received the right amount
54
// after the first write
55
assert.equal(charLengths[i], sum.length);
57
sum += decoder.write(buffer.slice(i, j));
58
sum += decoder.write(buffer.slice(j, buffer.length));
59
assert.equal(expected, sum);
63
console.log(" crayon!");