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Bug 1484213 - Try to make browser_autofocus_background.js more reliable. r=dao 

I think the focus shenanigans instead of waiting for tab-switching or what not
may be tripping this tests and causing the background tab to be blurred, but I
didn't spend too much time trying to reproduce the failure.

Differential Revision: https://phabricator.services.mozilla.com/D61096

--HG--
extra : moz-landing-system : lando
This commit is contained in:
Emilio Cobos Álvarez 2020-02-05 13:14:42 +00:00
Родитель 063b597c47
Коммит 7a8fd6fede
1 изменённых файлов: 38 добавлений и 35 удалений
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73
dom/tests/browser/browser_autofocus_background.js
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@ -1,49 +1,52 @@
add_task(async function() {
let tabs = [gBrowser.selectedTab, BrowserTestUtils.addTab(gBrowser)];
const URL =
"data:text/html,<!DOCTYPE html><html><body><input autofocus id='target'></body></html>";
const foregroundTab = gBrowser.selectedTab;
const backgroundTab = BrowserTestUtils.addTab(gBrowser);
// The first tab has an autofocused element.
// The second tab is exactly like the first one without the autofocus.
let testingList = [
{
uri:
"data:text/html,<!DOCTYPE html><html><body><input autofocus id='target'></body></html>",
tagName: "INPUT",
},
];
// Set the focus to the first tab.
tabs[0].linkedBrowser.focus();
// Ensure tab is still in the foreground.
is(
gBrowser.selectedTab,
foregroundTab,
"foregroundTab should still be selected"
);
// Load the second tab in the background.
let loadedPromise = BrowserTestUtils.browserLoaded(tabs[1].linkedBrowser);
BrowserTestUtils.loadURI(tabs[1].linkedBrowser, testingList[0].uri);
const loadedPromise = BrowserTestUtils.browserLoaded(
backgroundTab.linkedBrowser,
/* includesubframes */ false,
URL
);
BrowserTestUtils.loadURI(backgroundTab.linkedBrowser, URL);
await loadedPromise;
for (var i = 0; i < testingList.length; ++i) {
// Get active element in the tab.
let tagName = await SpecialPowers.spawn(
tabs[i + 1].linkedBrowser,
[],
async function() {
return content.document.activeElement.tagName;
}
);
// Get active element in the tab.
let tagName = await SpecialPowers.spawn(
backgroundTab.linkedBrowser,
[],
async function() {
return content.document.activeElement.tagName;
}
);
is(
tagName,
testingList[i].tagName,
"The background tab's focused element should be " + testingList[i].tagName
);
}
is(
tagName,
"INPUT",
"The background tab's focused element should be the <input>"
);
is(
gBrowser.selectedTab,
foregroundTab,
"foregroundTab tab should still be selected, shouldn't cause a tab switch"
);
is(
document.activeElement,
tabs[0].linkedBrowser,
"The background tab's focused element should not cause the tab to be focused"
foregroundTab.linkedBrowser,
"The background tab's focused element should not cause the tab to be selected"
);
// Cleaning up.
for (let i = 1; i < tabs.length; i++) {
BrowserTestUtils.removeTab(tabs[i]);
}
BrowserTestUtils.removeTab(backgroundTab);
});