deno.land / std@0.166.0 / node / _tools / test / parallel / test-stream2-pipe-error-handling.js

test-stream2-pipe-error-handling.js
نووسراو ببینە
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
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
// deno-fmt-ignore-file// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.// Taken from Node 18.12.0// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
// 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');
{ let count = 1000;
const source = new stream.Readable(); source._read = function(n) { n = Math.min(count, n); count -= n; source.push(Buffer.allocUnsafe(n)); };
let unpipedDest; source.unpipe = function(dest) { unpipedDest = dest; stream.Readable.prototype.unpipe.call(this, dest); };
const dest = new stream.Writable(); dest._write = function(chunk, encoding, cb) { cb(); };
source.pipe(dest);
let gotErr = null; dest.on('error', function(err) { gotErr = err; });
let unpipedSource; dest.on('unpipe', function(src) { unpipedSource = src; });
const err = new Error('This stream turned into bacon.'); dest.emit('error', err); assert.strictEqual(gotErr, err); assert.strictEqual(unpipedSource, source); assert.strictEqual(unpipedDest, dest);}
{ let count = 1000;
const source = new stream.Readable(); source._read = function(n) { n = Math.min(count, n); count -= n; source.push(Buffer.allocUnsafe(n)); };
let unpipedDest; source.unpipe = function(dest) { unpipedDest = dest; stream.Readable.prototype.unpipe.call(this, dest); };
const dest = new stream.Writable({ autoDestroy: false }); dest._write = function(chunk, encoding, cb) { cb(); };
source.pipe(dest);
let unpipedSource; dest.on('unpipe', function(src) { unpipedSource = src; });
const err = new Error('This stream turned into bacon.');
let gotErr = null; try { dest.emit('error', err); } catch (e) { gotErr = e; } assert.strictEqual(gotErr, err); assert.strictEqual(unpipedSource, source); assert.strictEqual(unpipedDest, dest);}
std

Version Info

Tagged at
a year ago