This repository has been archived by the owner on Apr 22, 2023. It is now read-only.
/
test-util-inspect.js
139 lines (122 loc) · 4.47 KB
/
test-util-inspect.js
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
// 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.
var common = require('../common');
var assert = require('assert');
var util = require('util');
// test the internal isDate implementation
var Date2 = require('vm').runInNewContext('Date');
var d = new Date2();
var orig = util.inspect(d);
Date2.prototype.foo = 'bar';
var after = util.inspect(d);
assert.equal(orig, after);
// test for sparse array
var a = ['foo', 'bar', 'baz'];
assert.equal(util.inspect(a), '[ \'foo\', \'bar\', \'baz\' ]');
delete a[1];
assert.equal(util.inspect(a), '[ \'foo\', , \'baz\' ]');
assert.equal(util.inspect(a, true), '[ \'foo\', , \'baz\', [length]: 3 ]');
assert.equal(util.inspect(new Array(5)), '[ , , , , ]');
// test for property descriptors
var getter = Object.create(null, {
a: {
get: function() { return 'aaa'; }
}
});
var setter = Object.create(null, {
b: {
set: function() {}
}
});
var getterAndSetter = Object.create(null, {
c: {
get: function() { return 'ccc'; },
set: function() {}
}
});
assert.equal(util.inspect(getter, true), '{ [a]: [Getter] }');
assert.equal(util.inspect(setter, true), '{ [b]: [Setter] }');
assert.equal(util.inspect(getterAndSetter, true), '{ [c]: [Getter/Setter] }');
// exceptions should print the error message, not '{}'
assert.equal(util.inspect(new Error()), '[Error]');
assert.equal(util.inspect(new Error('FAIL')), '[Error: FAIL]');
assert.equal(util.inspect(new TypeError('FAIL')), '[TypeError: FAIL]');
assert.equal(util.inspect(new SyntaxError('FAIL')), '[SyntaxError: FAIL]');
try {
undef();
} catch (e) {
assert.equal(util.inspect(e), '[ReferenceError: undef is not defined]');
}
var ex = util.inspect(new Error('FAIL'), true);
assert.ok(ex.indexOf('[Error: FAIL]') != -1);
assert.ok(ex.indexOf('[stack]') != -1);
assert.ok(ex.indexOf('[message]') != -1);
assert.ok(ex.indexOf('[arguments]') != -1);
assert.ok(ex.indexOf('[type]') != -1);
// GH-1941
// should not throw:
assert.equal(util.inspect(Object.create(Date.prototype)), '{}');
// GH-1944
assert.doesNotThrow(function() {
var d = new Date();
d.toUTCString = null;
util.inspect(d);
});
assert.doesNotThrow(function() {
var r = /regexp/;
r.toString = null;
util.inspect(r);
});
// bug with user-supplied inspect function returns non-string
assert.doesNotThrow(function() {
util.inspect([{
inspect: function() { return 123; }
}]);
});
// GH-2225
var x = { inspect: util.inspect };
assert.ok(util.inspect(x).indexOf('inspect') != -1);
// util.inspect.styles and util.inspect.colors
function test_color_style(style, input, implicit) {
var color_name = util.inspect.styles[style];
var color = ['', ''];
if(util.inspect.colors[color_name])
color = util.inspect.colors[color_name];
var without_color = util.inspect(input, false, 0, false);
var with_color = util.inspect(input, false, 0, true);
var expect = '\u001b[' + color[0] + 'm' + without_color +
'\u001b[' + color[1] + 'm';
assert.equal(with_color, expect, 'util.inspect color for style '+style);
}
test_color_style('special', function(){});
test_color_style('number', 123.456);
test_color_style('boolean', true);
test_color_style('undefined', undefined);
test_color_style('null', null);
test_color_style('string', 'test string');
test_color_style('date', new Date);
test_color_style('regexp', /regexp/);
// an object with "hasOwnProperty" overwritten should not throw
assert.doesNotThrow(function() {
util.inspect({
hasOwnProperty: null
});
});