public async Task ProcessAsync_SetsLegendOnContext()
{
// Arrange
var fieldsetContext = new RadiosFieldsetContext();
var context = new TagHelperContext(
tagName: "govuk-radios-fieldset-legend",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(RadiosFieldsetContext), fieldsetContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-radios-fieldset-legend",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetHtmlContent(new HtmlString("Legend"));
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new RadiosFieldsetLegendTagHelper();
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("Legend", fieldsetContext.Legend?.content?.AsString());
}
public async Task ProcessAsync_ParentAlreadyHasLegend_ThrowsInvalidOperationException()
{
// Arrange
var fieldsetContext = new RadiosFieldsetContext(attributes: null);
fieldsetContext.SetLegend(
isPageHeading: false,
attributes: null,
content: new HtmlString("Existing legend"));
var context = new TagHelperContext(
tagName: "govuk-radios-fieldset-legend",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(RadiosFieldsetContext), fieldsetContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-radios-fieldset-legend",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Legend content");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new RadiosFieldsetLegendTagHelper()
{
IsPageHeading = true
};
// Act
var ex = await Record.ExceptionAsync(() => tagHelper.ProcessAsync(context, output));
// Assert
Assert.IsType <InvalidOperationException>(ex);
Assert.Equal("Only one <govuk-radios-fieldset-legend> element is permitted within each <govuk-radios-fieldset>.", ex.Message);
}
public void AddItem_OutsideOfFieldset_ThrowsInvalidOperationException()
{
// Arrange
var context = new RadiosContext(name: null, aspFor: null);
var item = new RadiosItem()
{
LabelContent = new HtmlString("Item 1"),
Value = "item1"
};
context.OpenFieldset();
var fieldsetContext = new RadiosFieldsetContext(attributes: null);
context.CloseFieldset(fieldsetContext);
// Act
var ex = Record.Exception(() => context.AddItem(item));
// Assert
Assert.IsType <InvalidOperationException>(ex);
Assert.Equal("<govuk-radios-item> must be inside <govuk-radios-fieldset>.", ex.Message);
}
public async Task ProcessAsync_AddsLegendToContext()
{
// Arrange
var fieldsetContext = new RadiosFieldsetContext(attributes: null);
var context = new TagHelperContext(
tagName: "govuk-radios-fieldset-legend",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(RadiosFieldsetContext), fieldsetContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-radios-fieldset-legend",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Legend content");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new RadiosFieldsetLegendTagHelper()
{
IsPageHeading = true
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("Legend content", fieldsetContext.Legend?.Content.RenderToString());
Assert.True(fieldsetContext.Legend?.IsPageHeading);
}
public async Task ProcessAsync_WithFieldset_GeneratesExpectedOutput()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-radios",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-radios",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var radiosContext = context.GetContextItem <RadiosContext>();
radiosContext.OpenFieldset();
var radiosFieldsetContext = new RadiosFieldsetContext(attributes: null);
radiosFieldsetContext.SetLegend(isPageHeading: false, attributes: null, content: new HtmlString("Legend"));
radiosContext.SetHint(attributes: null, content: new HtmlString("The hint"));
radiosContext.AddItem(new RadiosItem()
{
Checked = false,
LabelContent = new HtmlString("First"),
Disabled = true,
Id = "first",
Value = "first"
});
radiosContext.AddItem(new RadiosItem()
{
Checked = true,
LabelContent = new HtmlString("Second"),
Disabled = false,
Id = "second",
Value = "second"
});
radiosContext.CloseFieldset(radiosFieldsetContext);
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new RadiosTagHelper(new ComponentGenerator(), new DefaultModelHelper())
{
DescribedBy = "describedby",
IdPrefix = "my-id",
Name = "testradios"
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
var expectedHtml = @"
<div class=""govuk-form-group"">
<fieldset aria-describedby=""describedby my-id-hint"" class=""govuk-fieldset"">
<legend class=""govuk-fieldset__legend"">Legend</legend>
<div class=""govuk-hint"" id=""my-id-hint"">The hint</div>
<div class=""govuk-radios"" data-module=""govuk-radios"">
<div class=""govuk-radios__item"">
<input class=""govuk-radios__input"" id=""first"" name=""testradios"" type=""radio"" value=""first"" disabled=""disabled"" />
<label class=""govuk-radios__label govuk-label"" for=""first"">First</label>
</div>
<div class=""govuk-radios__item"">
<input class=""govuk-radios__input"" id=""second"" name=""testradios"" type=""radio"" value=""second"" checked=""checked"" />
<label class=""govuk-radios__label govuk-label"" for=""second"">Second</label>
</div>
</div>
</fieldset>
</div>";
AssertEx.HtmlEqual(expectedHtml, output.RenderToString());
}
