public async Task ProcessAsync_SetsLabelOnContext()
{
// Arrange
var itemContext = new DateInputItemContext("govuk-date-input-day", "govuk-date-input-day-label");
var context = new TagHelperContext(
tagName: "govuk-date-input-day-label",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(DateInputItemContext), itemContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-date-input-day-label",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Label");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new DateInputItemLabelTagHelper();
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("Label", itemContext.Label?.Content?.ToString());
}
public void SetLabel_SetsLabelOnContext()
{
// Arrange
var context = new DateInputItemContext("govuk-date-input-day", "govuk-date-input-day-label");
// Act
context.SetLabel(content: new HtmlString("Label"), attributes: new AttributeDictionary());
// Assert
Assert.Equal("Label", context.Label?.Content?.RenderToString());
}
public void SetLabel_AlreadyGotLabel_ThrowsInvalidOperationException()
{
// Arrange
var context = new DateInputItemContext("govuk-date-input-day", "govuk-date-input-day-label");
context.SetLabel(content: new HtmlString("Existing label"), attributes: new AttributeDictionary());
// Act
var ex = Record.Exception(() => context.SetLabel(content: new HtmlString("Label"), attributes: new AttributeDictionary()));
// Assert
Assert.IsType <InvalidOperationException>(ex);
Assert.Equal("Only one <govuk-date-input-day-label> element is permitted within each <govuk-date-input-day>.", ex.Message);
}
