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: function test() {
michael@0:   let tab1 = gBrowser.selectedTab;
michael@0:   let tab2 = gBrowser.addTab("about:blank", {skipAnimation: true});
michael@0:   let tab3 = gBrowser.addTab();
michael@0:   gBrowser.selectedTab = tab2;
michael@0:   
michael@0:   gBrowser.removeCurrentTab({animate: true});
michael@0:   gBrowser.tabContainer.advanceSelectedTab(-1, true);
michael@0:   is(gBrowser.selectedTab, tab1, "First tab should be selected");
michael@0:   gBrowser.removeTab(tab2);
michael@0:   
michael@0:   // test for "null has no properties" fix. See Bug 585830 Comment 13
michael@0:   gBrowser.removeCurrentTab({animate: true});
michael@0:   try {
michael@0:     gBrowser.tabContainer.advanceSelectedTab(-1, false);
michael@0:   } catch(err) {
michael@0:     ok(false, "Shouldn't throw");
michael@0:   }
michael@0:   
michael@0:   gBrowser.removeTab(tab1);
michael@0: }