public async Task ProcessAsync_NoTitleDescriptionOrItems_RendersNothing()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-error-summary",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-error-summary",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new ErrorSummaryTagHelper(new DefaultGovUkHtmlGenerator());
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
var html = output.AsString();
Assert.Empty(html);
}
public async Task ProcessAsync_NoTitleThrowsInvalidOperationException()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-error-summary",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-error-summary",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new ErrorSummaryTagHelper(new DefaultGovUkHtmlGenerator());
// Act & Assert
var ex = await Assert.ThrowsAsync <InvalidOperationException>(() => tagHelper.ProcessAsync(context, output));
Assert.Equal("Missing <govuk-error-summary-title> element.", ex.Message);
}
public async Task ProcessAsync_GeneratesExpectedOutput()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-error-summary",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-error-summary",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var errorSummaryContext = (ErrorSummaryContext)context.Items[typeof(ErrorSummaryContext)];
errorSummaryContext.SetTitle(attributes: null, new HtmlString("Title"));
errorSummaryContext.SetDescription(attributes: null, new HtmlString("Description"));
errorSummaryContext.AddItem(new ErrorSummaryItem()
{
Content = new HtmlString("First message"),
Href = "#Field1"
});
errorSummaryContext.AddItem(new ErrorSummaryItem()
{
Content = new HtmlString("Second message"),
Href = "#Field2"
});
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new ErrorSummaryTagHelper();
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
var expectedHtml = @"
<div aria-labelledby=""error-summary-title"" class=""govuk-error-summary"" data-module=""govuk-error-summary"" role=""alert"">
<h2 class=""govuk-error-summary__title"" id=""error-summary-title"">Title</h2>
<div class=""govuk-error-summary__body"">
<p>Description</p>
<ul class=""govuk-error-summary__list govuk-list"">
<li><a href=""#Field1"">First message</a></li>
<li><a href=""#Field2"">Second message</a></li>
</ul>
</div>
</div>";
AssertEx.HtmlEqual(expectedHtml, output.RenderToString());
}
public async Task WhenErrorSummaryHelperCalled_ThenCorrectClassCalled()
{
var tagHelper = Substitute.For <IMockViewComponentHelper>();
var componentTag = new ErrorSummaryTagHelper(tagHelper)
{
Id = "Id",
Hidden = true
};
await ViewComponentTestHelper.CallTagHelper("ErrorSummary", tagHelper, componentTag);
}
public async Task ProcessAsync_GeneratesExpectedOutput()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-error-summary",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-error-summary",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var errorSummaryContext = (ErrorSummaryContext)context.Items[typeof(ErrorSummaryContext)];
errorSummaryContext.TrySetTitle(attributes: null, new HtmlString("Title"));
errorSummaryContext.TrySetDescription(attributes: null, new HtmlString("Description"));
errorSummaryContext.AddItem(new ErrorSummaryItem()
{
Content = new HtmlString("First message")
});
errorSummaryContext.AddItem(new ErrorSummaryItem()
{
Content = new HtmlString("Second message")
});
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new ErrorSummaryTagHelper(new DefaultGovUkHtmlGenerator());
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal(
"<div aria-labelledby=\"error-summary-title\" class=\"govuk-error-summary\" data-module=\"govuk-error-summary\" role=\"alert\" tabindex=\"-1\">" +
"<h2 class=\"govuk-error-summary__title\" id=\"error-summary-title\">Title</h2>" +
"<div class=\"govuk-error-summary__body\">" +
"<p>Description</p>" +
"<ul class=\"govuk-error-summary__list govuk-list\">" +
"<li>First message</li>" +
"<li>Second message</li>" +
"</ul>" +
"</div>" +
"</div>",
output.AsString());
}
public async Task ProcessAsync_WithDisableAutoFocus_RendersDataAttribute()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-error-summary",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-error-summary",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var errorSummaryContext = (ErrorSummaryContext)context.Items[typeof(ErrorSummaryContext)];
errorSummaryContext.SetTitle(attributes: null, new HtmlString("Title"));
errorSummaryContext.SetDescription(attributes: null, new HtmlString("Description"));
errorSummaryContext.AddItem(new ErrorSummaryItem()
{
Content = new HtmlString("First message"),
Href = "#Field1"
});
errorSummaryContext.AddItem(new ErrorSummaryItem()
{
Content = new HtmlString("Second message"),
Href = "#Field2"
});
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new ErrorSummaryTagHelper()
{
DisableAutoFocus = true
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
var element = output.RenderToElement();
Assert.NotNull(element.GetAttribute("data-disable-auto-focus"));
}
public async Task ProcessAsync_ItemWithEmptyLink_DoesNotRenderAnchorTag()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-error-summary",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-error-summary",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var errorSummaryContext = (ErrorSummaryContext)context.Items[typeof(ErrorSummaryContext)];
errorSummaryContext.SetTitle(attributes: null, new HtmlString("Title"));
errorSummaryContext.SetDescription(attributes: null, new HtmlString("Description"));
errorSummaryContext.AddItem(new ErrorSummaryItem()
{
Content = new HtmlString("Message"),
Href = null
});
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new ErrorSummaryTagHelper();
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
var element = output.RenderToElement();
var itemElement = element.QuerySelector("li");
Assert.NotEqual("a", itemElement.FirstChild.NodeName, StringComparer.OrdinalIgnoreCase);
}
public async Task ProcessAsync_NoTitleSpecified_UsesDefaultTitle()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-error-summary",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-error-summary",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var errorSummaryContext = (ErrorSummaryContext)context.Items[typeof(ErrorSummaryContext)];
errorSummaryContext.AddItem(new ErrorSummaryItem()
{
Content = new HtmlString("First message")
});
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new ErrorSummaryTagHelper(new DefaultGovUkHtmlGenerator());
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
var html = output.AsString();
var node = HtmlNode.CreateNode(html);
var h2 = node.ChildNodes.FindFirst("h2");
Assert.Equal("There is a problem", h2.InnerHtml);
}