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/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
/**
* Tests the event notification service for the profiler actor.
*/
const Profiler = Cc["@mozilla.org/tools/profiler;1"].getService(Ci.nsIProfiler);
const MAX_PROFILER_ENTRIES = 10000000;
const { ProfilerFront } = require("devtools/shared/fronts/profiler");
const { waitForTime } = DevToolsUtils;
function run_test() {
run_next_test();
}
add_task(function* () {
let [client, form] = yield getChromeActors();
let front = new ProfilerFront(client, form);
// Ensure the profiler is not running when the test starts (it could
// happen if the MOZ_PROFILER_STARTUP environment variable is set).
Profiler.StopProfiler();
let eventsCalled = 0;
let handledThreeTimes = promise.defer();
front.on("profiler-status", (response) => {
dump("'profiler-status' fired\n");
do_check_true(typeof response.position === "number");
do_check_true(typeof response.totalSize === "number");
do_check_true(typeof response.generation === "number");
do_check_true(response.position > 0 && response.position < response.totalSize);
do_check_true(response.totalSize === MAX_PROFILER_ENTRIES);
// There's no way we'll fill the buffer in this test.
do_check_true(response.generation === 0);
eventsCalled++;
if (eventsCalled > 2) {
handledThreeTimes.resolve();
}
});
yield front.setProfilerStatusInterval(1);
dump("Set the profiler-status event interval to 1\n");
yield front.startProfiler();
yield waitForTime(500);
yield front.stopProfiler();
do_check_true(eventsCalled === 0, "No 'profiler-status' events should be fired before registering.");
let ret = yield front.registerEventNotifications({ events: ["profiler-status"] });
do_check_true(ret.registered.length === 1);
yield front.startProfiler();
yield handledThreeTimes.promise;
yield front.stopProfiler();
do_check_true(eventsCalled >= 3, "profiler-status fired atleast three times while recording");
let totalEvents = eventsCalled;
yield waitForTime(50);
do_check_true(totalEvents === eventsCalled, "No more profiler-status events after recording.");
});
function getChromeActors() {
let deferred = promise.defer();
get_chrome_actors((client, form) => deferred.resolve([client, form]));
return deferred.promise;
}
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