deno.land / std@0.166.0 / node / _tools / test / parallel / test-console-instance.js

test-console-instance.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
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
// deno-fmt-ignore-file// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.// Taken from Node 16.13.0// 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';const common = require('../common');const assert = require('assert');const Stream = require('stream');const requiredConsole = require('console');const Console = requiredConsole.Console;
const out = new Stream();const err = new Stream();
// Ensure the Console instance doesn't write to the// process' "stdout" or "stderr" streams.process.stdout.write = process.stderr.write = common.mustNotCall();
// Make sure that the "Console" function exists.assert.strictEqual(typeof Console, 'function');
// Note: We don't replace global console with node.js console// assert.strictEqual(requiredConsole, global.console);// Make sure the custom instanceof of Console worksassert.ok(global.console instanceof Console);assert.ok(!({} instanceof Console));
// Make sure that the Console constructor throws// when not given a writable stream instance.assert.throws( () => { new Console(); }, { code: 'ERR_CONSOLE_WRITABLE_STREAM', name: 'TypeError', message: /stdout/ });
// Console constructor should throw if stderr exists but is not writable.assert.throws( () => { out.write = () => {}; err.write = undefined; new Console(out, err); }, { code: 'ERR_CONSOLE_WRITABLE_STREAM', name: 'TypeError', message: /stderr/ });
out.write = err.write = (d) => {};
{ const c = new Console(out, err); assert.ok(c instanceof Console);
out.write = err.write = common.mustCall((d) => { assert.strictEqual(d, 'test\n'); }, 2);
c.log('test'); c.error('test');
out.write = common.mustCall((d) => { assert.strictEqual(d, '{ foo: 1 }\n'); });
c.dir({ foo: 1 });
// Ensure that the console functions are bound to the console instance. let called = 0; out.write = common.mustCall((d) => { called++; assert.strictEqual(d, `${called} ${called - 1} [ 1, 2, 3 ]\n`); }, 3);
[1, 2, 3].forEach(c.log);}
// Test calling Console without the `new` keyword.{ const withoutNew = Console(out, err); assert.ok(withoutNew instanceof Console);}
// Test extending Console{ class MyConsole extends Console { hello() {} // See if the methods on Console.prototype are overridable. log() { return 'overridden'; } } const myConsole = new MyConsole(process.stdout); assert.strictEqual(typeof myConsole.hello, 'function'); assert.ok(myConsole instanceof Console); assert.strictEqual(myConsole.log(), 'overridden');
const log = myConsole.log; assert.strictEqual(log(), 'overridden');}
// Instance that does not ignore the stream errors.{ const c2 = new Console(out, err, false);
out.write = () => { throw new Error('out'); }; err.write = () => { throw new Error('err'); };
assert.throws(() => c2.log('foo'), /^Error: out$/); assert.throws(() => c2.warn('foo'), /^Error: err$/); assert.throws(() => c2.dir('foo'), /^Error: out$/);}
// Console constructor throws if inspectOptions is not an object.[null, true, false, 'foo', 5, Symbol()].forEach((inspectOptions) => { assert.throws( () => { new Console({ stdout: out, stderr: err, inspectOptions }); }, { message: 'The "options.inspectOptions" property must be of type object.' + common.invalidArgTypeHelper(inspectOptions), code: 'ERR_INVALID_ARG_TYPE' } );});
std

Version Info

Tagged at
a year ago