public async Task ProcessAsync_AddsSummaryToContext() { // Arrange var accordionContext = new AccordionContext(); var itemContext = new AccordionItemContext(); var context = new TagHelperContext( tagName: "govuk-accordion-item-summary", allAttributes: new TagHelperAttributeList(), items: new Dictionary <object, object>() { { typeof(AccordionContext), accordionContext }, { typeof(AccordionItemContext), itemContext } }, uniqueId: "test"); var output = new TagHelperOutput( "govuk-accordion-item-summary", attributes: new TagHelperAttributeList(), getChildContentAsync: (useCachedResult, encoder) => { var tagHelperContent = new DefaultTagHelperContent(); tagHelperContent.SetContent("Summary content"); return(Task.FromResult <TagHelperContent>(tagHelperContent)); }); var tagHelper = new AccordionItemSummaryTagHelper(); // Act await tagHelper.ProcessAsync(context, output); // Assert Assert.NotNull(itemContext.Summary); Assert.Equal("Summary content", itemContext.Summary?.Content.RenderToString()); }
public async Task ProcessAsync_ItemAlreadyHasSummaryThrowsInvalidOperationException() { // Arrange var accordionContext = new AccordionContext(); var itemContext = new AccordionItemContext(); itemContext.TrySetSummary(attributes: null, new HtmlString("Existing summary")); var context = new TagHelperContext( tagName: "govuk-accordion-item-summary", allAttributes: new TagHelperAttributeList(), items: new Dictionary <object, object>() { { typeof(AccordionContext), accordionContext }, { typeof(AccordionItemContext), itemContext } }, uniqueId: "test"); var output = new TagHelperOutput( "govuk-accordion-item-summary", attributes: new TagHelperAttributeList(), getChildContentAsync: (useCachedResult, encoder) => { var tagHelperContent = new DefaultTagHelperContent(); tagHelperContent.SetContent("Summary content"); return(Task.FromResult <TagHelperContent>(tagHelperContent)); }); var tagHelper = new AccordionItemSummaryTagHelper(); // Act & Assert var ex = await Assert.ThrowsAsync <InvalidOperationException>(() => tagHelper.ProcessAsync(context, output)); Assert.Equal("Cannot render <govuk-accordion-item-summary> here.", ex.Message); }