The Tor Browser: toolkit/components/url-classifier/tests/unit/test

     1 // Some unittests (e.g., paste into JS shell)

     2 var jslib = Cc["@mozilla.org/url-classifier/jslib;1"].

     3             getService().wrappedJSObject;

     4 var _Datenow = jslib.Date.now;

     5 function setNow(time) {

     6   jslib.Date.now = function() {

     7     return time;

     8   }

9 }

    11 function run_test() {

    12   // 3 errors, 1ms retry period, max 3 requests per ten milliseconds,

    13   // 5ms backoff interval, 19ms max delay

    14   var rb = new jslib.RequestBackoff(3, 1, 3, 10, 5, 19);

    15   setNow(1);

    16   rb.noteServerResponse(200);

    17   do_check_true(rb.canMakeRequest());

    18   setNow(2);

    19   do_check_true(rb.canMakeRequest());

    21   // First error should trigger a 1ms delay

    22   rb.noteServerResponse(500);

    23   do_check_false(rb.canMakeRequest());

    24   do_check_eq(rb.nextRequestTime_, 3);

    25   setNow(3);

    26   do_check_true(rb.canMakeRequest());

    28   // Second error should also trigger a 1ms delay

    29   rb.noteServerResponse(500);

    30   do_check_false(rb.canMakeRequest());

    31   do_check_eq(rb.nextRequestTime_, 4);

    32   setNow(4);

    33   do_check_true(rb.canMakeRequest());

    35   // Third error should trigger a 5ms backoff

    36   rb.noteServerResponse(500);

    37   do_check_false(rb.canMakeRequest());

    38   do_check_eq(rb.nextRequestTime_, 9);

    39   setNow(9);

    40   do_check_true(rb.canMakeRequest());

    42   // Trigger backoff again

    43   rb.noteServerResponse(503);

    44   do_check_false(rb.canMakeRequest());

    45   do_check_eq(rb.nextRequestTime_, 19);

    46   setNow(19);

    47   do_check_true(rb.canMakeRequest());

    49   // Trigger backoff a third time and hit max timeout

    50   rb.noteServerResponse(302);

    51   do_check_false(rb.canMakeRequest());

    52   do_check_eq(rb.nextRequestTime_, 38);

    53   setNow(38);

    54   do_check_true(rb.canMakeRequest());

    56   // One more backoff, should still be at the max timeout

    57   rb.noteServerResponse(400);

    58   do_check_false(rb.canMakeRequest());

    59   do_check_eq(rb.nextRequestTime_, 57);

    60   setNow(57);

    61   do_check_true(rb.canMakeRequest());

    63   // Request goes through

    64   rb.noteServerResponse(200);

    65   do_check_true(rb.canMakeRequest());

    66   do_check_eq(rb.nextRequestTime_, 0);

    67   setNow(58);

    68   rb.noteServerResponse(500);

    70   // Another error, should trigger a 1ms backoff

    71   do_check_false(rb.canMakeRequest());

    72   do_check_eq(rb.nextRequestTime_, 59);

    74   setNow(59);

    75   do_check_true(rb.canMakeRequest());

    77   setNow(200);

    78   rb.noteRequest();

    79   setNow(201);

    80   rb.noteRequest();

    81   setNow(202);

    82   do_check_true(rb.canMakeRequest());

    83   rb.noteRequest();

    84   do_check_false(rb.canMakeRequest());

    85   setNow(211);

    86   do_check_true(rb.canMakeRequest());

    88   jslib.Date.now = _Datenow;

    89 }

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