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
|
'use strict';
const common = require('../common');
const assert = require('assert');
const path = require('path');
const fs = require('fs');
let watchSeenOne = 0;
let watchSeenTwo = 0;
let watchSeenThree = 0;
let watchSeenFour = 0;
const testDir = common.tmpDir;
const filenameOne = 'watch.txt';
const filepathOne = path.join(testDir, filenameOne);
const filenameTwo = 'hasOwnProperty';
const filepathTwo = filenameTwo;
const filepathTwoAbs = path.join(testDir, filenameTwo);
const filenameThree = 'charm'; // because the third time is
const filenameFour = 'get';
process.on('exit', function() {
fs.unlinkSync(filepathOne);
fs.unlinkSync(filepathTwoAbs);
fs.unlinkSync(filenameThree);
fs.unlinkSync(filenameFour);
assert.strictEqual(1, watchSeenOne);
assert.strictEqual(2, watchSeenTwo);
assert.strictEqual(1, watchSeenThree);
assert.strictEqual(1, watchSeenFour);
});
fs.writeFileSync(filepathOne, 'hello');
assert.throws(
function() {
fs.watchFile(filepathOne);
},
function(e) {
return e.message === 'watchFile requires a listener function';
}
);
assert.doesNotThrow(
function() {
fs.watchFile(filepathOne, function(curr, prev) {
fs.unwatchFile(filepathOne);
++watchSeenOne;
});
}
);
setTimeout(function() {
fs.writeFileSync(filepathOne, 'world');
}, 1000);
process.chdir(testDir);
fs.writeFileSync(filepathTwoAbs, 'howdy');
assert.throws(
function() {
fs.watchFile(filepathTwo);
},
function(e) {
return e.message === 'watchFile requires a listener function';
}
);
assert.doesNotThrow(
function() {
function a(curr, prev) {
fs.unwatchFile(filepathTwo, a);
++watchSeenTwo;
}
function b(curr, prev) {
fs.unwatchFile(filepathTwo, b);
++watchSeenTwo;
}
fs.watchFile(filepathTwo, a);
fs.watchFile(filepathTwo, b);
}
);
setTimeout(function() {
fs.writeFileSync(filepathTwoAbs, 'pardner');
}, 1000);
assert.doesNotThrow(
function() {
function a(curr, prev) {
assert.ok(0); // should not run
}
function b(curr, prev) {
fs.unwatchFile(filenameThree, b);
++watchSeenThree;
}
fs.watchFile(filenameThree, a);
fs.watchFile(filenameThree, b);
fs.unwatchFile(filenameThree, a);
}
);
setTimeout(function() {
fs.writeFileSync(filenameThree, 'pardner');
}, 1000);
setTimeout(function() {
fs.writeFileSync(filenameFour, 'hey');
}, 200);
setTimeout(function() {
fs.writeFileSync(filenameFour, 'hey');
}, 500);
assert.doesNotThrow(
function() {
function a(curr, prev) {
++watchSeenFour;
assert.strictEqual(1, watchSeenFour);
fs.unwatchFile('.' + path.sep + filenameFour, a);
}
fs.watchFile(filenameFour, a);
}
);
|
