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92c422a2d6
This reduces the amount of places where we need to specify the mozilla/frame-script environment. It does have the side effect of allowing those globals in the whole file, but that is what specifying the environment would do, and this is also for mochitest test files only. MozReview-Commit-ID: 1LLFbn6fFJR --HG-- extra : rebase_source : 82a6934d90bbbbd25f91b7b06bf4f9354e38865a
41 lines
1.5 KiB
JavaScript
41 lines
1.5 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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add_task(function* () {
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// make sure that the next closed tab will increase getClosedTabCount
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let max_tabs_undo = gPrefService.getIntPref("browser.sessionstore.max_tabs_undo");
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gPrefService.setIntPref("browser.sessionstore.max_tabs_undo", max_tabs_undo + 1);
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registerCleanupFunction(() => gPrefService.clearUserPref("browser.sessionstore.max_tabs_undo"));
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// Empty the list of closed tabs.
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while (ss.getClosedTabCount(window)) {
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ss.forgetClosedTab(window, 0);
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}
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// restore a blank tab
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let tab = gBrowser.addTab("about:");
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yield promiseBrowserLoaded(tab.linkedBrowser);
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let count = yield promiseSHistoryCount(tab.linkedBrowser);
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ok(count >= 1, "the new tab does have at least one history entry");
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yield promiseTabState(tab, {entries: []});
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// We may have a different sessionHistory object if the tab
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// switched from non-remote to remote.
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count = yield promiseSHistoryCount(tab.linkedBrowser);
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is(count, 0, "the tab was restored without any history whatsoever");
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yield promiseRemoveTab(tab);
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is(ss.getClosedTabCount(window), 0,
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"The closed blank tab wasn't added to Recently Closed Tabs");
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});
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function promiseSHistoryCount(browser) {
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return ContentTask.spawn(browser, null, function* () {
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return docShell.QueryInterface(Ci.nsIWebNavigation).sessionHistory.count;
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});
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}
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