public async Task ProcessAsync_TagAlreadySpecifiedThrowsInvalidOperationException()
{
// Arrange
var pbContext = new PhaseBannerContext();
pbContext.TrySetTag(attributes: null, content: new HtmlString("Existing tag"));
var context = new TagHelperContext(
tagName: "govuk-phase-banner-tag",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(PhaseBannerContext), pbContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-phase-banner-tag",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Legend message");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new PhaseBannerTagTagHelper();
// Act & Assert
var ex = await Assert.ThrowsAsync <InvalidOperationException>(() => tagHelper.ProcessAsync(context, output));
Assert.Equal("Cannot render <govuk-phase-banner-tag> here.", ex.Message);
}
public async Task ProcessAsync_AddsToContext()
{
// Arrange
var pbContext = new PhaseBannerContext();
var context = new TagHelperContext(
tagName: "govuk-phase-banner-tag",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(PhaseBannerContext), pbContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-phase-banner-tag",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Legend message");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new PhaseBannerTagTagHelper();
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("Legend message", pbContext.Tag?.content.AsString());
}
public async Task ProcessAsync_TagAlreadySpecified_ThrowsInvalidOperationException()
{
// Arrange
var phaseBannerContext = new PhaseBannerContext();
phaseBannerContext.SetTag(new AttributeDictionary(), content: new HtmlString("Existing tag"));
var context = new TagHelperContext(
tagName: "govuk-phase-banner-tag",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(PhaseBannerContext), phaseBannerContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-phase-banner-tag",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Legend message");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new PhaseBannerTagTagHelper();
// Act
var ex = await Record.ExceptionAsync(() => tagHelper.ProcessAsync(context, output));
// Assert
Assert.IsType <InvalidOperationException>(ex);
Assert.Equal("Only one <govuk-phase-banner-tag> element is permitted within each <govuk-phase-banner>.", ex.Message);
}
