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);
}
public async Task ProcessAsync_AddsHeadingToContext()
{
// Arrange
var accordionContext = new AccordionContext();
var itemContext = new AccordionItemContext();
var context = new TagHelperContext(
tagName: "govuk-accordion-item-heading",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(AccordionContext), accordionContext },
{ typeof(AccordionItemContext), itemContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-accordion-item-heading",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Summary content");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new AccordionItemHeadingTagHelper();
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.NotNull(itemContext.Heading);
Assert.Equal("Summary content", itemContext.Heading?.Content.RenderToString());
}
public async Task ProcessAsync_ItemAlreadyHasSummary_ThrowsInvalidOperationException()
{
// Arrange
var accordionContext = new AccordionContext();
var itemContext = new AccordionItemContext();
itemContext.SetSummary(attributes: new AttributeDictionary(), content: new HtmlString("Summary"));
var context = new TagHelperContext(
tagName: "govuk-accordion-item-heading",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(AccordionContext), accordionContext },
{ typeof(AccordionItemContext), itemContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-accordion-item-heading",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Summary content");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new AccordionItemHeadingTagHelper();
// Act
var ex = await Record.ExceptionAsync(() => tagHelper.ProcessAsync(context, output));
// Assert
Assert.IsType <InvalidOperationException>(ex);
Assert.Equal("<govuk-accordion-item-heading> must be specified before <govuk-accordion-item-summary>.", ex.Message);
}
public async Task ProcessAsync_InvalidLevelThrowsInvalidOperationException(int level)
{
// Arrange
var accordionContext = new AccordionContext();
var itemContext = new AccordionItemContext();
var context = new TagHelperContext(
tagName: "govuk-accordion-item-heading",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(AccordionContext), accordionContext },
{ typeof(AccordionItemContext), itemContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-accordion-item-heading",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Summary content");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new AccordionItemHeadingTagHelper()
{
Level = level
};
// Act & Assert
var ex = await Assert.ThrowsAsync <InvalidOperationException>(() => tagHelper.ProcessAsync(context, output));
Assert.Equal("The 'level' attribute must be between 1 and 6.", ex.Message);
}
