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