public void SetTitle_AlreadyGotTitle_ThrowsInvalidOperationException()
{
// Arrange
var context = new NotificationBannerContext();
context.SetTitle("id", headingLevel: 4, content: new HtmlString("Title"));
// Act
var ex = Record.Exception(() => context.SetTitle("id", headingLevel: 4, content: new HtmlString("Title")));
// Assert
Assert.IsType <InvalidOperationException>(ex);
Assert.Equal("Only one <govuk-notification-banner-title> element is permitted within each <govuk-notification-banner>.", ex.Message);
}
public async Task ProcessAsync_SetsTitleOnContext()
{
// Arrange
var notificationBannerContext = new NotificationBannerContext();
var context = new TagHelperContext(
tagName: "govuk-notification-banner-title",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(NotificationBannerContext), notificationBannerContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-notification-banner-title",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Title");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new NotificationBannerTitleTagHelper()
{
HeadingLevel = 3,
Id = "my-title"
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.NotNull(notificationBannerContext.Title);
Assert.Equal("Title", notificationBannerContext.Title?.Content.RenderToString());
Assert.Equal(3, notificationBannerContext.Title?.HeadingLevel);
Assert.Equal("my-title", notificationBannerContext.Title?.Id);
}
public void SetHeadingLevel_InvalidLevel_ThrowsArgumentException(int level)
{
// Arrange
var notificationBannerContext = new NotificationBannerContext();
var context = new TagHelperContext(
tagName: "govuk-notification-banner-title",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(NotificationBannerContext), notificationBannerContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-notification-banner-title",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Title");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
// Act
var ex = Record.Exception(() => new NotificationBannerTitleTagHelper()
{
HeadingLevel = level
});
// Assert
var argumentEx = Assert.IsType <ArgumentOutOfRangeException>(ex);
Assert.Equal("value", argumentEx.ParamName);
Assert.StartsWith("HeadingLevel must be between 1 and 6.", argumentEx.Message);
}
