public async Task ProcessAsync_AddsFieldsetToContext()
{
// Arrange
var dateInputContext = new DateInputContext(haveExplicitValue: false);
var context = new TagHelperContext(
tagName: "govuk-date-input-fieldset",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(DateInputContext), dateInputContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-date-input-fieldset",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var fieldsetContext = context.GetContextItem <DateInputFieldsetContext>();
fieldsetContext.SetLegend(isPageHeading: true, attributes: null, content: new HtmlString("Legend"));
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new DateInputFieldsetTagHelper();
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.True(dateInputContext.Fieldset?.Legend?.IsPageHeading);
Assert.Equal("Legend", dateInputContext.Fieldset?.Legend?.Content?.RenderToString());
}
public async Task ProcessAsync_ParentAlreadyHasFieldset_ThrowsInvalidOperationException()
{
// Arrange
var dateInputContext = new DateInputContext(haveExplicitValue: false);
dateInputContext.OpenFieldset();
var checkboxesFieldsetContext = new DateInputFieldsetContext(attributes: null);
checkboxesFieldsetContext.SetLegend(isPageHeading: false, attributes: null, content: new HtmlString("Existing legend"));
dateInputContext.CloseFieldset(checkboxesFieldsetContext);
var context = new TagHelperContext(
tagName: "govuk-date-input-fieldset",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(DateInputContext), dateInputContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-date-input-fieldset",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var fieldsetContext = context.GetContextItem <DateInputFieldsetContext>();
fieldsetContext.SetLegend(isPageHeading: true, attributes: null, content: new HtmlString("Legend"));
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new DateInputFieldsetTagHelper();
// Act
var ex = await Record.ExceptionAsync(() => tagHelper.ProcessAsync(context, output));
// Assert
Assert.IsType <InvalidOperationException>(ex);
Assert.Equal("Only one <govuk-date-input-fieldset> element is permitted within each <govuk-date-input>.", ex.Message);
}
