public void WHEN_param_is_null_SHOULD_throw_ArgumentNullException()
{
//Arrange
GetBreadcrumbParam param = null;
//Act & Assert
var ex = Assert.Throws <ArgumentNullException>(() => _sut.CreateBreadcrumbViewModel(param));
}
public void WHEN_PageId_does_not_match_any_SHOULD_throw_ArgumentException()
{
//Arrange
var param = new GetBreadcrumbParam
{
CultureInfo = CultureInfo.InvariantCulture,
CurrentPageId = Guid.NewGuid().ToString()
};
//Act & Assert
Expression <Func <BreadcrumbViewModel> > expression = () => _sut.CreateBreadcrumbViewModel(param);
var exception = Assert.Throws <InvalidOperationException>(() => expression.Compile().Invoke());
exception.Message.Should().StartWith("Could not find any page matching this ID.");
}
public void WHEN_PageId_does_not_match_any_SHOULD_throw_ArgumentException()
{
//Arrange
var pageId = Guid.NewGuid();
var param = new GetBreadcrumbParam
{
CultureInfo = CultureInfo.InvariantCulture,
CurrentPageId = pageId.ToString()
};
//Act & Assert
var ex = Assert.Throws <ArgumentException>(() => _sut.CreateBreadcrumbViewModel(param));
ex.ParamName.Should().Be(nameof(param.CurrentPageId));
}
public void WHEN_not_generating_folder_SHOULD_all_have_url()
{
//Arrange
var pageId = PageLevel2Id;
var param = new GetBreadcrumbParam
{
CurrentPageId = pageId.ToString(),
CultureInfo = CultureInfo.InvariantCulture
};
//Act
var vm = _sut.CreateBreadcrumbViewModel(param);
//Assert
vm.ActivePageName.Should().Be(PageLevel2Name);
vm.Items.All(i => i.Url != null).Should().BeTrue();
}
public void WHEN_creating_breadcrumb_SHOULD_have_pages_in_order()
{
//Arrange
var pageId = PageLevel2Id;
var param = new GetBreadcrumbParam
{
CultureInfo = CultureInfo.InvariantCulture,
CurrentPageId = pageId.ToString()
};
//Act
var vm = _sut.CreateBreadcrumbViewModel(param);
//Assert
vm.Items[0].DisplayName.Should().Be(HomePageName);
vm.Items[1].DisplayName.Should().Be(PageLevel1Name);
vm.ActivePageName.Should().Be(PageLevel2Name);
}
public void WHEN_generating_folder_SHOULD_not_generate_url_for_folder()
{
//Arrange
var pageId = PageLevel2UnderFolderId;
var param = new GetBreadcrumbParam
{
CurrentPageId = pageId.ToString(),
CultureInfo = CultureInfo.InvariantCulture
};
//Act
var vm = _sut.CreateBreadcrumbViewModel(param);
//Assert
vm.ActivePageName.Should().Be(PageLevel2UnderFolderName);
var folderItem = vm.Items.First(i => i.DisplayName == FolderPageLevel1Name);
folderItem.Url.Should().BeNull();
}
protected virtual List <BreadcrumbItemViewModel> CreateBreadcrumbItems(GetBreadcrumbParam param, IPage page)
{
var breadcrumbStack = new Stack <BreadcrumbItemViewModel>();
var parentPageId = _pageService.GetParentPageId(page);
while (parentPageId != Guid.Empty)
{
var parentPage = _pageService.GetPage(parentPageId, param.CultureInfo);
var itemVM = CreateParentPageItem(parentPage);
breadcrumbStack.Push(itemVM);
parentPageId = _pageService.GetParentPageId(parentPage);
}
var items = UnrollStack(breadcrumbStack).ToList();
return(items);
}
public virtual BreadcrumbViewModel CreateBreadcrumbViewModel(GetBreadcrumbParam param)
{
if (param == null)
{
throw new ArgumentNullException(nameof(param));
}
var pageId = new Guid(param.CurrentPageId);
var page = _pageService.GetPage(pageId, param.CultureInfo) ??
throw new InvalidOperationException("Could not find any page matching this ID.");
var breadcrumbViewModel = new BreadcrumbViewModel
{
ActivePageName = page.MenuTitle,
Items = CreateBreadcrumbItems(param, page)
};
return(breadcrumbViewModel);
}
