public async Task ProcessAsync_NoHeadingThrowsInvalidOperationException()
{
// Arrange
var accordionContext = new AccordionContext();
var context = new TagHelperContext(
tagName: "govuk-accordion-item",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(AccordionContext), accordionContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-accordion-item",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var itemContext = (AccordionItemContext)context.Items[typeof(AccordionItemContext)];
itemContext.TrySetSummary(attributes: null, new HtmlString("Summary"));
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Content");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new AccordionItemTagHelper();
// Act & Assert
var ex = await Assert.ThrowsAsync <InvalidOperationException>(() => tagHelper.ProcessAsync(context, output));
Assert.Equal("Missing <govuk-accordion-item-heading> element.", ex.Message);
}
public async Task ProcessAsync_AddsItemToContext()
{
// Arrange
var accordionContext = new AccordionContext();
var context = new TagHelperContext(
tagName: "govuk-accordion-item",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(AccordionContext), accordionContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-accordion-item",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var itemContext = (AccordionItemContext)context.Items[typeof(AccordionItemContext)];
itemContext.TrySetHeading(1, attributes: null, new HtmlString("Heading"));
itemContext.TrySetSummary(attributes: null, new HtmlString("Summary"));
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Content");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new AccordionItemTagHelper();
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal(1, accordionContext.Items.Count);
var firstItem = accordionContext.Items.First();
Assert.Equal(1, firstItem.HeadingLevel.Value);
Assert.Equal("Heading", firstItem.HeadingContent.AsString());
Assert.Equal("Summary", firstItem.SummaryContent.AsString());
Assert.Equal("Content", firstItem.Content.AsString());
}
