public async Task ProcessAsync_ParentAlreadyHasBody_ThrowsInvalidOperationException()
{
// Arrange
var panelContext = new PanelContext();
panelContext.SetBody(new HtmlString("The body"));
var context = new TagHelperContext(
tagName: "govuk-panel-body",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(PanelContext), panelContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-panel-body",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("The body");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new PanelBodyTagHelper();
// Act
var ex = await Record.ExceptionAsync(() => tagHelper.ProcessAsync(context, output));
// Assert
Assert.IsType <InvalidOperationException>(ex);
Assert.Equal("Only one <govuk-panel-body> element is permitted within each <govuk-panel>.", ex.Message);
}
public async Task ProcessAsync_SetsBodyOnContext()
{
// Arrange
var panelContext = new PanelContext();
var context = new TagHelperContext(
tagName: "govuk-panel-body",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(PanelContext), panelContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-panel-body",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("The body");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new PanelBodyTagHelper();
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("The body", panelContext.Body?.RenderToString());
}
