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/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
// Test that the timeline can also record data from the memory and framerate
// actors, emitted as events in tadem with the markers.
const {TimelineFront} = require("devtools/shared/fronts/timeline");
add_task(function* () {
let browser = yield addTab("data:text/html;charset=utf-8,mop");
let doc = browser.contentDocument;
initDebuggerServer();
let client = new DebuggerClient(DebuggerServer.connectPipe());
let form = yield connectDebuggerClient(client);
let front = TimelineFront(client, form);
info("Start timeline marker recording");
yield front.start({ withMemory: true, withTicks: true });
let updatedMemory = 0;
let updatedTicks = 0;
front.on("memory", (delta, measurement) => {
ok(delta > 0, "The delta should be a timestamp.");
ok(measurement, "The measurement should not be null.");
ok(measurement.total > 0, "There should be a 'total' value in the measurement.");
info("Received 'memory' event at " + delta + " with " + measurement.toSource());
updatedMemory++;
});
front.on("ticks", (delta, ticks) => {
ok(delta > 0, "The delta should be a timestamp.");
ok(ticks, "The ticks should not be null.");
info("Received 'ticks' event with " + ticks.toSource());
updatedTicks++;
});
ok((yield waitUntil(() => updatedMemory > 1)),
"Some memory measurements were emitted.");
ok((yield waitUntil(() => updatedTicks > 1)),
"Some refresh driver ticks were emitted.");
info("Stop timeline marker recording");
yield front.stop();
yield client.close();
gBrowser.removeCurrentTab();
});
/**
* Waits until a predicate returns true.
*
* @param function predicate
* Invoked once in a while until it returns true.
* @param number interval [optional]
* How often the predicate is invoked, in milliseconds.
*/
function waitUntil(predicate, interval = 10) {
if (predicate()) {
return Promise.resolve(true);
}
return new Promise(resolve =>
setTimeout(function () {
waitUntil(predicate).then(() => resolve(true));
}, interval));
}
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