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