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
|
'use strict';
var common = require('../common');
var assert = require('assert');
var zlib = require('zlib');
var path = require('path');
var fs = require('fs');
var file = fs.readFileSync(path.resolve(common.fixturesDir, 'person.jpg')),
chunkSize = 16,
opts = { level: 0 },
deflater = zlib.createDeflate(opts);
var chunk = file.slice(0, chunkSize),
expectedNone = new Buffer([0x78, 0x01]),
blkhdr = new Buffer([0x00, 0x10, 0x00, 0xef, 0xff]),
adler32 = new Buffer([0x00, 0x00, 0x00, 0xff, 0xff]),
expectedFull = Buffer.concat([blkhdr, chunk, adler32]),
actualNone,
actualFull;
deflater.write(chunk, function() {
deflater.flush(zlib.Z_NO_FLUSH, function() {
actualNone = deflater.read();
deflater.flush(function() {
var bufs = [], buf;
while (buf = deflater.read())
bufs.push(buf);
actualFull = Buffer.concat(bufs);
});
});
});
process.once('exit', function() {
assert.deepEqual(actualNone, expectedNone);
assert.deepEqual(actualFull, expectedFull);
});
|
