michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: // Tests that an about:blank tab with no history will not be saved into
michael@0: // session store and thus, it will not show up in Recently Closed Tabs.
michael@0: 
michael@0: let tab;
michael@0: function test() {
michael@0:   waitForExplicitFinish();
michael@0: 
michael@0:   gPrefService.setIntPref("browser.sessionstore.max_tabs_undo", 0);
michael@0:   gPrefService.clearUserPref("browser.sessionstore.max_tabs_undo");
michael@0: 
michael@0:   is(ss.getClosedTabCount(window), 0, "should be no closed tabs");
michael@0: 
michael@0:   gBrowser.tabContainer.addEventListener("TabOpen", onTabOpen, true);
michael@0: 
michael@0:   tab = gBrowser.addTab();
michael@0: }
michael@0: 
michael@0: function onTabOpen(aEvent) {
michael@0:   gBrowser.tabContainer.removeEventListener("TabOpen", onTabOpen, true);
michael@0: 
michael@0:   // Let other listeners react to the TabOpen event before removing the tab.
michael@0:   executeSoon(function() {
michael@0:     is(gBrowser.browsers[1].currentURI.spec, "about:blank",
michael@0:        "we will be removing an about:blank tab");
michael@0: 
michael@0:     gBrowser.removeTab(tab);
michael@0: 
michael@0:     is(ss.getClosedTabCount(window), 0, "should still be no closed tabs");
michael@0: 
michael@0:     executeSoon(finish);
michael@0:   });
michael@0: }