public async Task ProcessAsync_SetsContentOnContext()
{
// Arrange
var detailsContext = new DetailsContext();
detailsContext.SetSummary(attributes: null, new HtmlString("The summary"));
var context = new TagHelperContext(
tagName: "govuk-details-text",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(DetailsContext), detailsContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-details-text",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("The text");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new DetailsTextTagHelper();
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("The text", detailsContext.Text?.content.AsString());
}
public async Task ProcessAsync_ParentAlreadyHasText_ThrowsInvalidOperationException()
{
// Arrange
var detailsContext = new DetailsContext();
detailsContext.SetSummary(new AttributeDictionary(), new HtmlString("The summary"));
detailsContext.SetText(new AttributeDictionary(), new HtmlString("The text"));
var context = new TagHelperContext(
tagName: "govuk-details-text",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(DetailsContext), detailsContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-details-text",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("The text");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new DetailsTextTagHelper();
// Act
var ex = await Record.ExceptionAsync(() => tagHelper.ProcessAsync(context, output));
// Assert
Assert.IsType <InvalidOperationException>(ex);
Assert.Equal("Only one <govuk-details-text> element is permitted within each <govuk-details>.", ex.Message);
}