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
|
// Some unittests (e.g., paste into JS shell)
var jslib = Cc["@mozilla.org/url-classifier/jslib;1"].
getService().wrappedJSObject;
var _Datenow = jslib.Date.now;
function setNow(time) {
jslib.Date.now = function() {
return time;
}
}
function run_test() {
// 3 errors, 1ms retry period, max 3 requests per ten milliseconds,
// 5ms backoff interval, 19ms max delay
var rb = new jslib.RequestBackoff(3, 1, 3, 10, 5, 19);
setNow(1);
rb.noteServerResponse(200);
do_check_true(rb.canMakeRequest());
setNow(2);
do_check_true(rb.canMakeRequest());
// First error should trigger a 1ms delay
rb.noteServerResponse(500);
do_check_false(rb.canMakeRequest());
do_check_eq(rb.nextRequestTime_, 3);
setNow(3);
do_check_true(rb.canMakeRequest());
// Second error should also trigger a 1ms delay
rb.noteServerResponse(500);
do_check_false(rb.canMakeRequest());
do_check_eq(rb.nextRequestTime_, 4);
setNow(4);
do_check_true(rb.canMakeRequest());
// Third error should trigger a 5ms backoff
rb.noteServerResponse(500);
do_check_false(rb.canMakeRequest());
do_check_eq(rb.nextRequestTime_, 9);
setNow(9);
do_check_true(rb.canMakeRequest());
// Trigger backoff again
rb.noteServerResponse(503);
do_check_false(rb.canMakeRequest());
do_check_eq(rb.nextRequestTime_, 19);
setNow(19);
do_check_true(rb.canMakeRequest());
// Trigger backoff a third time and hit max timeout
rb.noteServerResponse(302);
do_check_false(rb.canMakeRequest());
do_check_eq(rb.nextRequestTime_, 38);
setNow(38);
do_check_true(rb.canMakeRequest());
// One more backoff, should still be at the max timeout
rb.noteServerResponse(400);
do_check_false(rb.canMakeRequest());
do_check_eq(rb.nextRequestTime_, 57);
setNow(57);
do_check_true(rb.canMakeRequest());
// Request goes through
rb.noteServerResponse(200);
do_check_true(rb.canMakeRequest());
do_check_eq(rb.nextRequestTime_, 0);
setNow(58);
rb.noteServerResponse(500);
// Another error, should trigger a 1ms backoff
do_check_false(rb.canMakeRequest());
do_check_eq(rb.nextRequestTime_, 59);
setNow(59);
do_check_true(rb.canMakeRequest());
setNow(200);
rb.noteRequest();
setNow(201);
rb.noteRequest();
setNow(202);
do_check_true(rb.canMakeRequest());
rb.noteRequest();
do_check_false(rb.canMakeRequest());
setNow(211);
do_check_true(rb.canMakeRequest());
jslib.Date.now = _Datenow;
}
|
