1// Copyright Joyent, Inc. and other Node contributors.
2//
3// Permission is hereby granted, free of charge, to any person obtaining a
4// copy of this software and associated documentation files (the
5// "Software"), to deal in the Software without restriction, including
6// without limitation the rights to use, copy, modify, merge, publish,
7// distribute, sublicense, and/or sell copies of the Software, and to permit
8// persons to whom the Software is furnished to do so, subject to the
9// following conditions:
10//
11// The above copyright notice and this permission notice shall be included
12// in all copies or substantial portions of the Software.
13//
14// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
16// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
17// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
18// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
19// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20// USE OR OTHER DEALINGS IN THE SOFTWARE.
21
22'use strict';
23require('../common');
24const { Readable: R, Writable: W } = require('stream');
25const assert = require('assert');
26
27let ondataCalled = 0;
28
29class TestReader extends R {
30  constructor() {
31    super();
32    this._buffer = Buffer.alloc(100, 'x');
33
34    this.on('data', () => {
35      ondataCalled++;
36    });
37  }
38
39  _read(n) {
40    this.push(this._buffer);
41    this._buffer = Buffer.alloc(0);
42  }
43}
44
45const reader = new TestReader();
46setImmediate(function() {
47  assert.strictEqual(ondataCalled, 1);
48  console.log('ok');
49  reader.push(null);
50});
51
52class TestWriter extends W {
53  constructor() {
54    super();
55    this.write('foo');
56    this.end();
57  }
58
59  _write(chunk, enc, cb) {
60    cb();
61  }
62}
63
64const writer = new TestWriter();
65
66process.on('exit', function() {
67  assert.strictEqual(reader.readable, false);
68  assert.strictEqual(writer.writable, false);
69  console.log('ok');
70});
71