public async Task ProcessAsync_AddsFieldsetToContext()
{
// Arrange
var radiosContext = new RadiosContext(name: null, aspFor: null);
var context = new TagHelperContext(
tagName: "govuk-radios-fieldset",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(RadiosContext), radiosContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-radios-fieldset",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var fieldsetContext = context.GetContextItem <RadiosFieldsetContext>();
fieldsetContext.SetLegend(isPageHeading: true, attributes: null, content: new HtmlString("Legend"));
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new RadiosFieldsetTagHelper();
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.True(radiosContext.Fieldset?.Legend?.IsPageHeading);
Assert.Equal("Legend", radiosContext.Fieldset?.Legend?.Content?.RenderToString());
}
public async Task ProcessAsync_SetsFieldsetOnContext()
{
// Arrange
var radiosContext = new RadiosContext(
idPrefix: "prefix",
resolvedName: "r",
viewContext: null,
aspFor: null);
var context = new TagHelperContext(
tagName: "govuk-radios-fieldset",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(RadiosContext), radiosContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-radios-fieldset",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var fieldsetContext = (RadiosFieldsetContext)context.Items[typeof(RadiosFieldsetContext)];
fieldsetContext.TrySetLegend(attributes: null, content: new HtmlString("Legend"));
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new RadiosFieldsetTagHelper()
{
IsPageHeading = true
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.True(radiosContext.Fieldset.IsPageHeading);
Assert.Equal("Legend", radiosContext.Fieldset.LegendContent.AsString());
}
public async Task ProcessAsync_ParentAlreadyHasFieldset_ThrowsInvalidOperationException()
{
// Arrange
var radiosContext = new RadiosContext(name: null, aspFor: null);
radiosContext.OpenFieldset();
var radiosFieldsetContext = new RadiosFieldsetContext(attributes: null);
radiosFieldsetContext.SetLegend(isPageHeading: false, attributes: null, content: new HtmlString("Existing legend"));
radiosContext.CloseFieldset(radiosFieldsetContext);
var context = new TagHelperContext(
tagName: "govuk-radios-fieldset",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(RadiosContext), radiosContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-radios-fieldset",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var fieldsetContext = context.GetContextItem <RadiosFieldsetContext>();
fieldsetContext.SetLegend(isPageHeading: true, attributes: null, content: new HtmlString("Legend"));
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new RadiosFieldsetTagHelper();
// Act
var ex = await Record.ExceptionAsync(() => tagHelper.ProcessAsync(context, output));
// Assert
Assert.IsType <InvalidOperationException>(ex);
Assert.Equal("Only one <govuk-radios-fieldset> element is permitted within each <govuk-radios>.", ex.Message);
}