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:   let checkUpdateTimes = function (groupItem) {
michael@0:     let children = groupItem.getChildren();
michael@0:     let earliestUpdateTime = children.shift()._testLastTabUpdateTime;
michael@0: 
michael@0:     children.forEach(function (tabItem) {
michael@0:       let updateTime = tabItem._testLastTabUpdateTime;
michael@0:       ok(earliestUpdateTime <= updateTime, "Stacked group item update (" +
michael@0:          updateTime + ") > first item (" + earliestUpdateTime + ")");
michael@0:     });
michael@0:   }
michael@0: 
michael@0:   waitForExplicitFinish();
michael@0: 
michael@0:   newWindowWithTabView(function (win) {
michael@0:     registerCleanupFunction(function () win.close());
michael@0: 
michael@0:     let numTabsToUpdate = 10;
michael@0:     let groupItem = createGroupItemWithBlankTabs(win, 150, 150, 100, numTabsToUpdate, false);
michael@0:     ok(groupItem.isStacked(), "groupItem is stacked");
michael@0: 
michael@0:     let cw = win.TabView.getContentWindow();
michael@0:     cw.TabItems.pausePainting();
michael@0: 
michael@0:     groupItem.getChildren().forEach(function (tabItem) {
michael@0:       tabItem.addSubscriber("updated", function onUpdated() {
michael@0:         tabItem.removeSubscriber("updated", onUpdated);
michael@0:         tabItem._testLastTabUpdateTime = tabItem._lastTabUpdateTime;
michael@0: 
michael@0:         if (--numTabsToUpdate)
michael@0:           return;
michael@0: 
michael@0:         checkUpdateTimes(groupItem);
michael@0:         finish();
michael@0:       });
michael@0: 
michael@0:       cw.TabItems.update(tabItem.tab);
michael@0:     });
michael@0: 
michael@0:     cw.TabItems.resumePainting();
michael@0:   });
michael@0: }