michael@0: /* Any copyright is dedicated to the Public Domain.
michael@0:    http://creativecommons.org/publicdomain/zero/1.0/ */
michael@0: 
michael@0: function test() {
michael@0:   waitForExplicitFinish();
michael@0: 
michael@0:   newWindowWithTabView(win => {
michael@0:     is(win.gBrowser.tabs.length, 1, "There is only one tab");
michael@0: 
michael@0:     let tab = win.gBrowser.tabs[0];
michael@0:     let tabItem = tab._tabViewTabItem;
michael@0:     ok(tabItem.parent, "The tab item belongs to a group");
michael@0:     let groupId = tabItem.parent.id;
michael@0: 
michael@0:     tab._tabViewTabItem.close();
michael@0: 
michael@0:     whenTabViewIsHidden(function() {
michael@0:       // a new tab with group should be opened
michael@0:       is(win.gBrowser.tabs.length, 1, "There is still one tab");
michael@0:       isnot(win.gBrowser.selectedTab, tab, "The tab is different");
michael@0: 
michael@0:       tab = win.gBrowser.tabs[0];
michael@0:       tabItem = tab._tabViewTabItem;
michael@0:       ok(tabItem.parent, "This new tab item belongs to a group");
michael@0: 
michael@0:       is(tabItem.parent.id, groupId, "The group is different");
michael@0: 
michael@0:       promiseWindowClosed(win).then(finish);
michael@0:     }, win);
michael@0:   });
michael@0: }