blob: f673173de5ea57f144148c23614bbbeba369eebb (
plain)
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
|
var common = require('../common');
var assert = require('assert');
var Readable = require('stream').Readable;
var util = require('util');
util.inherits(MyStream, Readable);
function MyStream(options) {
Readable.call(this, options);
this._chunks = 3;
}
MyStream.prototype._read = function(n) {
switch (this._chunks--) {
case 0:
return this.push(null);
case 1:
return setTimeout(function() {
this.push('last chunk');
}.bind(this), 100);
case 2:
return this.push('second to last chunk');
case 3:
return process.nextTick(function() {
this.push('first chunk');
}.bind(this));
default:
throw new Error('?');
}
};
var ms = new MyStream();
var results = [];
ms.on('readable', function() {
var chunk;
while (null !== (chunk = ms.read()))
results.push(chunk + '');
});
var expect = [ 'first chunksecond to last chunk', 'last chunk' ];
process.on('exit', function() {
assert.equal(ms._chunks, -1);
assert.deepEqual(results, expect);
console.log('ok');
});
|