Magic-Mirror/gecko-dev
1
0
Fork 0
mirror of https://github.com/mozilla/gecko-dev.git synced 2024-11-28 23:31:56 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Bug 1301452 - Test written for tab spinner probes r=mconley

Browse Source 
MozReview-Commit-ID: C7oEA6ofntz

--HG--
extra : rebase_source : a46a386a103082592b66a709f07a9fae0fe4c1fd
This commit is contained in:
Kirk Steuber 2016-09-16 15:55:55 -07:00
parent 6237f6e281
commit 394e80dd4c
3 changed files with 90 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
browser/base/content/test/tabs/browser.ini Normal file
View File

@ -0,0 +1,2 @@
[browser_tabSpinnerProbe.js]
skip-if = !e10s # Tab spinner is e10s only.

87
browser/base/content/test/tabs/browser_tabSpinnerProbe.js Normal file
View File

@ -0,0 +1,87 @@
"use strict";
/**
* Tests the FX_TAB_SWITCH_SPINNER_VISIBLE_MS and
* FX_TAB_SWITCH_SPINNER_VISIBLE_LONG_MS telemetry probes
*/
let gMinHangTime = 500; // ms
let gMaxHangTime = 5 * 1000; // ms
/**
* Make a data URI for a generic webpage with a script that hangs for a given
* amount of time.
* @param {?Number} aHangMs Number of milliseconds that the hang should last.
* Defaults to 0.
* @return {String} The data URI generated.
*/
function makeDataURI(aHangMs = 0) {
return `data:text/html,
<html>
<head>
<meta charset="utf-8"/>
<title>Tab Spinner Test</title>
<script>
function hang() {
let hangDuration = ${aHangMs};
if (hangDuration > 0) {
let startTime = window.performance.now();
while(window.performance.now() - startTime < hangDuration) {}
}
}
</script>
</head>
<body>
<h1 id='header'>Tab Spinner Test</h1>
</body>
</html>`;
}
/**
* Returns the sum of all values in an array.
* @param {Array} aArray An array of integers
* @return {Number} The sum of the integers in the array
*/
function sum(aArray) {
return aArray.reduce(function(previousValue, currentValue) {
return previousValue + currentValue;
});
}
/**
* A generator intended to be run as a Task. It tests one of the tab spinner
* telemetry probes.
* @param {String} aProbe The probe to test. Should be one of:
* - FX_TAB_SWITCH_SPINNER_VISIBLE_MS
* - FX_TAB_SWITCH_SPINNER_VISIBLE_LONG_MS
*/
function* testProbe(aProbe) {
info(`Testing probe: ${aProbe}`);
let histogram = Services.telemetry.getHistogramById(aProbe);
let buckets = histogram.snapshot().ranges.filter(function(value) {
return (value > gMinHangTime && value < gMaxHangTime);
});
let delayTime = buckets[0]; // Pick a bucket arbitrarily
// The tab spinner does not show up instantly. We need to hang for a little
// bit of extra time to account for the tab spinner delay.
delayTime += gBrowser.selectedTab.linkedBrowser.getTabBrowser()._getSwitcher().TAB_SWITCH_TIMEOUT;
let dataURI1 = makeDataURI(delayTime);
let dataURI2 = makeDataURI();
let tab1 = yield BrowserTestUtils.openNewForegroundTab(gBrowser, dataURI1);
histogram.clear();
// Queue a hang in the content process when the
// event loop breathes next.
ContentTask.spawn(tab1.linkedBrowser, null, function*() {
content.wrappedJSObject.hang();
});
let tab2 = yield BrowserTestUtils.openNewForegroundTab(gBrowser, dataURI2);
let snapshot = histogram.snapshot();
yield BrowserTestUtils.removeTab(tab2);
yield BrowserTestUtils.removeTab(tab1);
ok(sum(snapshot.counts) > 0,
`Spinner probe should now have a value in some bucket`);
}
add_task(testProbe.bind(null, "FX_TAB_SWITCH_SPINNER_VISIBLE_MS"));
add_task(testProbe.bind(null, "FX_TAB_SWITCH_SPINNER_VISIBLE_LONG_MS"));

1
browser/base/moz.build
View File

@ -23,6 +23,7 @@ BROWSER_CHROME_MANIFESTS += [
'content/test/referrer/browser.ini',
'content/test/social/browser.ini',
'content/test/tabPrompts/browser.ini',
'content/test/tabs/browser.ini',
'content/test/urlbar/browser.ini',
'content/test/webrtc/browser.ini',
]