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// Some unittests (e.g., paste into JS shell)
var jslib =
Cc["@mozilla.org/url-classifier/jslib;1"].getService().wrappedJSObject;
var jslibDate = Cu.getGlobalForObject(jslib).Date;
var _Datenow = jslibDate.now;
function setNow(time) {
jslibDate.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, 0);
setNow(1);
rb.noteServerResponse(200);
Assert.ok(rb.canMakeRequest());
setNow(2);
Assert.ok(rb.canMakeRequest());
// First error should trigger a 1ms delay
rb.noteServerResponse(500);
Assert.ok(!rb.canMakeRequest());
Assert.equal(rb.nextRequestTime_, 3);
setNow(3);
Assert.ok(rb.canMakeRequest());
// Second error should also trigger a 1ms delay
rb.noteServerResponse(500);
Assert.ok(!rb.canMakeRequest());
Assert.equal(rb.nextRequestTime_, 4);
setNow(4);
Assert.ok(rb.canMakeRequest());
// Third error should trigger a 5ms backoff
rb.noteServerResponse(500);
Assert.ok(!rb.canMakeRequest());
Assert.equal(rb.nextRequestTime_, 9);
setNow(9);
Assert.ok(rb.canMakeRequest());
// Trigger backoff again
rb.noteServerResponse(503);
Assert.ok(!rb.canMakeRequest());
Assert.equal(rb.nextRequestTime_, 19);
setNow(19);
Assert.ok(rb.canMakeRequest());
// Trigger backoff a third time and hit max timeout
rb.noteServerResponse(302);
Assert.ok(!rb.canMakeRequest());
Assert.equal(rb.nextRequestTime_, 38);
setNow(38);
Assert.ok(rb.canMakeRequest());
// One more backoff, should still be at the max timeout
rb.noteServerResponse(400);
Assert.ok(!rb.canMakeRequest());
Assert.equal(rb.nextRequestTime_, 57);
setNow(57);
Assert.ok(rb.canMakeRequest());
// Request goes through
rb.noteServerResponse(200);
Assert.ok(rb.canMakeRequest());
Assert.equal(rb.nextRequestTime_, 0);
setNow(58);
rb.noteServerResponse(500);
// Another error, should trigger a 1ms backoff
Assert.ok(!rb.canMakeRequest());
Assert.equal(rb.nextRequestTime_, 59);
setNow(59);
Assert.ok(rb.canMakeRequest());
setNow(200);
rb.noteRequest();
setNow(201);
rb.noteRequest();
setNow(202);
Assert.ok(rb.canMakeRequest());
rb.noteRequest();
Assert.ok(!rb.canMakeRequest());
setNow(211);
Assert.ok(rb.canMakeRequest());
jslibDate.now = _Datenow;
}
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