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
73
|
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
require('../common');
const assert = require('assert');
const stream = require('stream');
const chunk = Buffer.from('hallo');
class TestWriter extends stream.Writable {
_write(buffer, encoding, callback) {
callback(null);
}
}
const dest = new TestWriter();
// Set this high so that we'd trigger a nextTick warning
// and/or RangeError if we do maybeReadMore wrong.
class TestReader extends stream.Readable {
constructor() {
super({
highWaterMark: 0x10000
});
}
_read(size) {
this.push(chunk);
}
}
const src = new TestReader();
for (let i = 0; i < 10; i++) {
src.pipe(dest);
src.unpipe(dest);
}
assert.strictEqual(src.listeners('end').length, 0);
assert.strictEqual(src.listeners('readable').length, 0);
assert.strictEqual(dest.listeners('unpipe').length, 0);
assert.strictEqual(dest.listeners('drain').length, 0);
assert.strictEqual(dest.listeners('error').length, 0);
assert.strictEqual(dest.listeners('close').length, 0);
assert.strictEqual(dest.listeners('finish').length, 0);
console.error(src._readableState);
process.on('exit', function() {
src.readableBuffer.length = 0;
console.error(src._readableState);
assert(src.readableLength >= src.readableHighWaterMark);
console.log('ok');
});
|
