The Tor Browser: dom/workers/test/onLine_worker

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /*

     2  * Any copyright is dedicated to the Public Domain.

     3  * http://creativecommons.org/licenses/publicdomain/

     4  */

     6 /*

     7  * Any copyright is dedicated to the Public Domain.

     8  * http://creativecommons.org/licenses/publicdomain/

     9  */

    11 function info(text) {

    12   dump("Test for Bug 925437: worker: " + text + "\n");

    13 }

    15 function ok(test, message) {

    16   postMessage({ type: 'ok', test: test, message: message });

    17 }

    19 /**

    20  * Returns a handler function for an online/offline event. The returned handler

    21  * ensures the passed event object has expected properties and that the handler

    22  * is called at the right moment (according to the gState variable).

    23  * @param nameTemplate The string identifying the hanlder. '%1' in that

    24  *                     string will be replaced with the event name.

    25  * @param eventName 'online' or 'offline'

    26  * @param expectedState value of gState at the moment the handler is called.

    27  *                       The handler increases gState by one before checking

    28  *                       if it matches expectedState.

    29  */

    30 function makeHandler(nameTemplate, eventName, expectedState, prefix, custom) {

    31   prefix += ": ";

    32   return function(e) {

    33     var name = nameTemplate.replace(/%1/, eventName);

    34     ok(e.constructor == Event, prefix + "event should be an Event");

    35     ok(e.type == eventName, prefix + "event type should be " + eventName);

    36     ok(!e.bubbles, prefix + "event should not bubble");

    37     ok(!e.cancelable, prefix + "event should not be cancelable");

    38     ok(e.target == self, prefix + "the event target should be the worker scope");

    39     ok(eventName == 'online' ? navigator.onLine : !navigator.onLine, prefix + "navigator.onLine " + navigator.onLine + " should reflect event " + eventName);

    41     if (custom) {

    42       custom();

    43     }

    44   }

    45 }

    49 var lastTest = false;

    51 function lastTestTest() {

    52   if (lastTest) {

    53     postMessage({ type: 'finished' });

    54     close();

    55   }

    56 }

    58 for (var event of ["online", "offline"]) {

    59   addEventListener(event,

    60                    makeHandler(

    61                      "addEventListener('%1', ..., false)",

    62                      event, 1, "Child Worker", lastTestTest

    63                    ),

    64                    false);

    65 }

    67 onmessage = function(e) {

    68   if (e.data.type === 'lastTest') {

    69     lastTest = true;

    70   } else if (e.data.type === 'navigatorState') {

    71     ok(e.data.state === navigator.onLine, "Child and parent navigator state should match");

    72   }

    73 }

    75 postMessage({ type: 'ready' });

The Tor Browser / file revision

dom/workers/test/onLine_worker_child.js@b8a032363ba2

dom/workers/test/onLine_worker_child.js