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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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63
devtools/server/tests/browser/browser_timeline.js Normal file
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/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
// Test that the timeline front's start/stop/isRecording methods work in a
// simple use case, and that markers events are sent when operations occur.
// Note that this test isn't concerned with which markers are actually recorded,
// just that markers are recorded at all.
// Trying to check marker types here may lead to intermittents, see bug 1066474.
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);
ok(front, "The TimelineFront was created");
let isActive = yield front.isRecording();
ok(!isActive, "The TimelineFront is not initially recording");
info("Flush any pending reflows");
let forceSyncReflow = doc.body.innerHeight;
info("Start recording");
yield front.start({ withMarkers: true });
isActive = yield front.isRecording();
ok(isActive, "The TimelineFront is now recording");
info("Change some style on the page to cause style/reflow/paint");
let onMarkers = once(front, "markers");
doc.body.style.padding = "10px";
let markers = yield onMarkers;
ok(true, "The markers event was fired");
ok(markers.length > 0, "Markers were returned");
info("Flush pending reflows again");
forceSyncReflow = doc.body.innerHeight;
info("Change some style on the page to cause style/paint");
onMarkers = once(front, "markers");
doc.body.style.backgroundColor = "red";
markers = yield onMarkers;
ok(markers.length > 0, "markers were returned");
yield front.stop();
isActive = yield front.isRecording();
ok(!isActive, "Not recording after stop()");
yield client.close();
gBrowser.removeCurrentTab();
});