69 lines
2.1 KiB
JavaScript
69 lines
2.1 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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// Test that the timeline can also record data from the memory and framerate
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// actors, emitted as events in tadem with the markers.
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const {TimelineFront} = require("devtools/shared/fronts/timeline");
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add_task(function* () {
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let browser = yield addTab("data:text/html;charset=utf-8,mop");
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let doc = browser.contentDocument;
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initDebuggerServer();
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let client = new DebuggerClient(DebuggerServer.connectPipe());
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let form = yield connectDebuggerClient(client);
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let front = TimelineFront(client, form);
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info("Start timeline marker recording");
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yield front.start({ withMemory: true, withTicks: true });
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let updatedMemory = 0;
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let updatedTicks = 0;
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front.on("memory", (delta, measurement) => {
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ok(delta > 0, "The delta should be a timestamp.");
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ok(measurement, "The measurement should not be null.");
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ok(measurement.total > 0, "There should be a 'total' value in the measurement.");
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info("Received 'memory' event at " + delta + " with " + measurement.toSource());
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updatedMemory++;
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});
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front.on("ticks", (delta, ticks) => {
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ok(delta > 0, "The delta should be a timestamp.");
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ok(ticks, "The ticks should not be null.");
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info("Received 'ticks' event with " + ticks.toSource());
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updatedTicks++;
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});
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ok((yield waitUntil(() => updatedMemory > 1)),
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"Some memory measurements were emitted.");
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ok((yield waitUntil(() => updatedTicks > 1)),
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"Some refresh driver ticks were emitted.");
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info("Stop timeline marker recording");
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yield front.stop();
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yield client.close();
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gBrowser.removeCurrentTab();
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});
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/**
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* Waits until a predicate returns true.
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*
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* @param function predicate
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* Invoked once in a while until it returns true.
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* @param number interval [optional]
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* How often the predicate is invoked, in milliseconds.
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*/
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function waitUntil(predicate, interval = 10) {
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if (predicate()) {
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return Promise.resolve(true);
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}
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return new Promise(resolve =>
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setTimeout(function () {
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waitUntil(predicate).then(() => resolve(true));
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}, interval));
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}
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