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Test Info:
"use strict";
add_task(async function () {
let tab1 = BrowserTestUtils.addTab(
gBrowser,
"data:text/plain;charset=utf-8,foo"
);
gBrowser.pinTab(tab1);
await promiseBrowserLoaded(tab1.linkedBrowser);
let tab2 = BrowserTestUtils.addTab(gBrowser);
gBrowser.pinTab(tab2);
is(
Array.prototype.indexOf.call(gBrowser.tabs, tab1),
0,
"pinned tab 1 is at the first position"
);
await promiseRemoveTabAndSessionState(tab1);
tab1 = undoCloseTab();
ok(tab1.pinned, "pinned tab 1 has been restored as a pinned tab");
is(
Array.prototype.indexOf.call(gBrowser.tabs, tab1),
0,
"pinned tab 1 has been restored to the first position"
);
BrowserTestUtils.removeTab(tab1);
BrowserTestUtils.removeTab(tab2);
});