public async Task AndroidTabbedPageHasBottomTabs()
        {
            var app    = CreateApp(Device.Android);
            var result = await app.NavigationService.NavigateAsync("/TabbedPage?createTab=ViewA&createTab=ViewB");

            Assert.True(result.Success);
            Assert.IsType <TabbedPage>(app.MainPage);

            var toolbarPlacement = AndroidTabbedPage.GetToolbarPlacement(app.MainPage);

            Assert.Equal(ToolbarPlacement.Bottom, toolbarPlacement);
        }
        public void SetUseBottomTabs()
        {
            Xamarin.Forms.Mocks.MockForms.Init(Device.Android);
            var _ = new Xamarin.Forms.Application();
            IPageBehaviorFactory factory = new ExtendedPageBehaviorFactory(new DefaultPageBehaviorFactoryOptions());

            var page = new TabbedPage();

            ConfigurePage(page);
            factory.ApplyPageBehaviors(page);

            Assert.Equal(ToolbarPlacement.Bottom, AndroidTabbedPage.GetToolbarPlacement(page));
        }