public async Task ProcessAsync_MissingIconFallbackText_ThrowsInvalidOperationException()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-warning-text",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-warning-text",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Warning message");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new WarningTextTagHelper(new ComponentGenerator());
// Act
var ex = await Record.ExceptionAsync(() => tagHelper.ProcessAsync(context, output));
// Act & Assert
Assert.IsType <InvalidOperationException>(ex);
Assert.Equal("The 'icon-fallback-text' attribute must be specified.", ex.Message);
}
public async Task ProcessAsync_GeneratesExpectedOutput()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-warning-text",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-warning-text",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Warning message");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new WarningTextTagHelper(new DefaultGovUkHtmlGenerator())
{
IconFallbackText = "Danger"
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
var html = output.AsString();
Assert.Equal(
"<div class=\"govuk-warning-text\">" +
"<span aria-hidden=\"true\" class=\"govuk-warning-text__icon\">!</span>" +
"<strong class=\"govuk-warning-text__text\">" +
"<span class=\"govuk-warning-text__assistive\">Danger</span>" +
"Warning message" +
"</strong>" +
"</div>",
html);
}
public async Task ProcessAsync_GeneratesExpectedOutput()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-warning-text",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-warning-text",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Warning message");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new WarningTextTagHelper(new ComponentGenerator())
{
IconFallbackText = "Danger"
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
var expectedHtml = @"
<div class=""govuk-warning-text"">
<span aria-hidden=""true"" class=""govuk-warning-text__icon"">!</span>
<strong class=""govuk-warning-text__text"">
<span class=""govuk-warning-text__assistive"">Danger</span>
Warning message
</strong>
</div>";
AssertEx.HtmlEqual(expectedHtml, output.RenderToString());
}
