tst.werror.js
6.09 KB
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
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
/*
* tst.werror.js: tests basic functionality of the WError class.
*/
var mod_assert = require('assert');
var mod_verror = require('../lib/verror');
var VError = mod_verror.VError;
var WError = mod_verror.WError;
var err, suberr, stack, substack;
/*
* Remove full paths and relative line numbers from stack traces so that we can
* compare against "known-good" output.
*/
function cleanStack(stacktxt)
{
var re = new RegExp(__filename + ':\\d+:\\d+', 'gm');
stacktxt = stacktxt.replace(re, 'tst.werror.js');
return (stacktxt);
}
/*
* Save the generic parts of all stack traces so we can avoid hardcoding
* Node-specific implementation details in our testing of stack traces.
*/
var nodestack = new Error().stack.split('\n').slice(2).join('\n');
/* no arguments */
err = new WError();
mod_assert.equal(err.name, 'WError');
mod_assert.ok(err instanceof Error);
mod_assert.ok(err instanceof WError);
mod_assert.equal(err.message, '');
mod_assert.equal(err.toString(), 'WError');
mod_assert.ok(err.cause() === undefined);
stack = cleanStack(err.stack);
mod_assert.equal(stack, [
'WError',
' at Object.<anonymous> (tst.werror.js)'
].join('\n') + '\n' + nodestack);
/* options-argument form */
err = new WError({});
mod_assert.equal(err.message, '');
mod_assert.equal(err.toString(), 'WError');
mod_assert.ok(err.cause() === undefined);
/* simple message */
err = new WError('my error');
mod_assert.equal(err.message, 'my error');
mod_assert.equal(err.toString(), 'WError: my error');
mod_assert.ok(err.cause() === undefined);
stack = cleanStack(err.stack);
mod_assert.equal(stack, [
'WError: my error',
' at Object.<anonymous> (tst.werror.js)'
].join('\n') + '\n' + nodestack);
err = new WError({}, 'my error');
mod_assert.equal(err.message, 'my error');
mod_assert.equal(err.toString(), 'WError: my error');
mod_assert.ok(err.cause() === undefined);
/* printf-style message */
err = new WError('%s error: %3d problems', 'very bad', 15);
mod_assert.equal(err.message, 'very bad error: 15 problems');
mod_assert.equal(err.toString(), 'WError: very bad error: 15 problems');
mod_assert.ok(err.cause() === undefined);
err = new WError({}, '%s error: %3d problems', 'very bad', 15);
mod_assert.equal(err.message, 'very bad error: 15 problems');
mod_assert.equal(err.toString(), 'WError: very bad error: 15 problems');
mod_assert.ok(err.cause() === undefined);
/* caused by another error, with no additional message */
suberr = new Error('root cause');
err = new WError(suberr);
mod_assert.equal(err.message, '');
mod_assert.equal(err.toString(), 'WError; caused by Error: root cause');
mod_assert.ok(err.cause() === suberr);
err = new WError({ 'cause': suberr });
mod_assert.equal(err.message, '');
mod_assert.equal(err.toString(), 'WError; caused by Error: root cause');
mod_assert.ok(err.cause() === suberr);
/* caused by another error, with annotation */
err = new WError(suberr, 'proximate cause: %d issues', 3);
mod_assert.equal(err.message, 'proximate cause: 3 issues');
mod_assert.equal(err.toString(), 'WError: proximate cause: 3 issues; ' +
'caused by Error: root cause');
mod_assert.ok(err.cause() === suberr);
stack = cleanStack(err.stack);
mod_assert.equal(stack, [
'WError: proximate cause: 3 issues; caused by Error: root cause',
' at Object.<anonymous> (tst.werror.js)'
].join('\n') + '\n' + nodestack);
err = new WError({ 'cause': suberr }, 'proximate cause: %d issues', 3);
mod_assert.equal(err.message, 'proximate cause: 3 issues');
mod_assert.equal(err.toString(), 'WError: proximate cause: 3 issues; ' +
'caused by Error: root cause');
mod_assert.ok(err.cause() === suberr);
stack = cleanStack(err.stack);
mod_assert.equal(stack, [
'WError: proximate cause: 3 issues; caused by Error: root cause',
' at Object.<anonymous> (tst.werror.js)'
].join('\n') + '\n' + nodestack);
/* caused by another WError, with annotation. */
suberr = err;
err = new WError(suberr, 'top');
mod_assert.equal(err.message, 'top');
mod_assert.equal(err.toString(), 'WError: top; caused by WError: ' +
'proximate cause: 3 issues; caused by Error: root cause');
mod_assert.ok(err.cause() === suberr);
err = new WError({ 'cause': suberr }, 'top');
mod_assert.equal(err.message, 'top');
mod_assert.equal(err.toString(), 'WError: top; caused by WError: ' +
'proximate cause: 3 issues; caused by Error: root cause');
mod_assert.ok(err.cause() === suberr);
/* caused by a VError */
suberr = new VError(new Error('root cause'), 'mid');
err = new WError(suberr, 'top');
mod_assert.equal(err.message, 'top');
mod_assert.equal(err.toString(),
'WError: top; caused by VError: mid: root cause');
mod_assert.ok(err.cause() === suberr);
/* null cause (for backwards compatibility with older versions) */
err = new WError(null, 'my error');
mod_assert.equal(err.message, 'my error');
mod_assert.equal(err.toString(), 'WError: my error');
mod_assert.ok(err.cause() === undefined);
stack = cleanStack(err.stack);
mod_assert.equal(stack, [
'WError: my error',
' at Object.<anonymous> (tst.werror.js)'
].join('\n') + '\n' + nodestack);
err = new WError({ 'cause': null }, 'my error');
mod_assert.equal(err.message, 'my error');
mod_assert.equal(err.toString(), 'WError: my error');
mod_assert.ok(err.cause() === undefined);
err = new WError(null);
mod_assert.equal(err.message, '');
mod_assert.equal(err.toString(), 'WError');
mod_assert.ok(err.cause() === undefined);
stack = cleanStack(err.stack);
mod_assert.equal(stack, [
'WError',
' at Object.<anonymous> (tst.werror.js)'
].join('\n') + '\n' + nodestack);
/* constructorOpt */
function makeErr(options) {
return (new WError(options, 'test error'));
}
err = makeErr({});
mod_assert.equal(err.toString(), 'WError: test error');
stack = cleanStack(err.stack);
mod_assert.equal(stack, [
'WError: test error',
' at makeErr (tst.werror.js)',
' at Object.<anonymous> (tst.werror.js)'
].join('\n') + '\n' + nodestack);
err = makeErr({ 'constructorOpt': makeErr });
mod_assert.equal(err.toString(), 'WError: test error');
stack = cleanStack(err.stack);
mod_assert.equal(stack, [
'WError: test error',
' at Object.<anonymous> (tst.werror.js)'
].join('\n') + '\n' + nodestack);