public async Task ProcessAsync_NoNameOrAspForThrowsInvalidOperationException()
{
// 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 tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new RadiosTagHelper(Mock.Of <IGovUkHtmlGenerator>())
{
IdPrefix = "prefix"
};
// Act & Assert
var ex = await Assert.ThrowsAsync <InvalidOperationException>(() => tagHelper.ProcessAsync(context, output));
Assert.Equal("At least one of the 'name' and 'asp-for' attributes must be specified.", ex.Message);
}
public async Task ProcessAsync_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 = (RadiosContext)context.Items[typeof(RadiosContext)];
radiosContext.AddItem(new RadiosItem()
{
IsChecked = false,
Content = new HtmlString("First"),
IsDisabled = false,
Id = "first",
Value = "first"
});
radiosContext.AddItem(new RadiosItemDivider()
{
Content = new HtmlString("Divider")
});
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new RadiosTagHelper(new DefaultGovUkHtmlGenerator())
{
IdPrefix = "my-id",
Name = "testradios"
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
var html = output.AsString();
Assert.Equal(
"<div class=\"govuk-form-group\">" +
"<div class=\"govuk-radios\">" +
"<div class=\"govuk-radios__item\">" +
"<input class=\"govuk-radios__input\" id=\"first\" name=\"testradios\" type=\"radio\" value=\"first\" />" +
"<label class=\"govuk-radios__label govuk-label\" for=\"first\">First</label>" +
"</div>" +
"<div class=\"govuk-radios__divider\">Divider</div>" +
"</div>" +
"</div>",
html);
}
public async Task ProcessAsync_WithCheckedItemConditional_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.AddItem(new RadiosItem()
{
Checked = true,
LabelContent = new HtmlString("First"),
Conditional = new RadiosItemConditional()
{
Content = new HtmlString("Item 1 conditional")
},
Id = "first",
Value = "first"
});
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new RadiosTagHelper(new ComponentGenerator(), new DefaultModelHelper())
{
IdPrefix = "my-id",
Name = "testradios"
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
var expectedHtml = @"
<div class=""govuk-form-group"">
<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"" checked=""checked"" data-aria-controls=""conditional-first"" />
<label class=""govuk-radios__label govuk-label"" for=""first"">First</label>
</div>
<div class=""govuk-radios__conditional"" id=""conditional-first"">Item 1 conditional</div>
</div>
</div>";
AssertEx.HtmlEqual(expectedHtml, output.RenderToString());
}
public async Task ProcessAsync_CheckedItemGeneratesExpectedOutput()
{
// 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 = (RadiosContext)context.Items[typeof(RadiosContext)];
radiosContext.AddItem(new RadiosItem()
{
IsChecked = true,
Content = new HtmlString("First"),
IsDisabled = false,
Id = "first",
Value = "first"
});
radiosContext.AddItem(new RadiosItemDivider()
{
Content = new HtmlString("Divider")
});
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new RadiosTagHelper(new DefaultGovUkHtmlGenerator())
{
IdPrefix = "my-id",
DescribedBy = "describedby",
Name = "testradios"
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
var html = output.AsString();
var node = HtmlNode.CreateNode(html);
var input = node.ChildNodes.FindFirst("input");
Assert.Equal("checked", input.Attributes["checked"].Value);
}
public async Task ProcessAsync_WithFieldsetGeneratesExpectedOutput()
{
// 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 = (RadiosContext)context.Items[typeof(RadiosContext)];
radiosContext.SetFieldset(new RadiosFieldset()
{
IsPageHeading = false,
LegendContent = new HtmlString("Legend")
});
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new RadiosTagHelper(new DefaultGovUkHtmlGenerator())
{
DescribedBy = "describedby",
IdPrefix = "my-id",
Name = "testradios"
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
var html = output.AsString();
Assert.Equal(
"<div class=\"govuk-form-group\">" +
"<fieldset aria-describedby=\"describedby\" class=\"govuk-fieldset\">" +
"<legend class=\"govuk-fieldset__legend\">Legend</legend>" +
"<div class=\"govuk-radios\">" +
"</div>" +
"</fieldset>" +
"</div>",
html);
}
public async Task ProcessAsync_WithErrorMessageGeneratesExpectedOutput()
{
// 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 formGroupContext = (FormGroupBuilder)context.Items[typeof(FormGroupBuilder)];
formGroupContext.TrySetErrorMessage(
visuallyHiddenText: null,
attributes: null,
new HtmlString("A error"));
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new RadiosTagHelper(new DefaultGovUkHtmlGenerator())
{
IdPrefix = "my-id",
Name = "testradios"
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
var html = output.AsString();
Assert.Equal(
"<div class=\"govuk-form-group--error govuk-form-group\">" +
"<span class=\"govuk-error-message\" id=\"my-id-error\"><span class=\"govuk-visually-hidden\">Error</span>A error</span>" +
"<div class=\"govuk-radios\">" +
"</div>" +
"</div>",
html);
}
public async Task ProcessAsync_WithError_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.SetErrorMessage(visuallyHiddenText: null, attributes: null, content: new HtmlString("A error"));
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"
});
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new RadiosTagHelper(new ComponentGenerator(), new DefaultModelHelper())
{
IdPrefix = "my-id",
Name = "testradios"
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
var expectedHtml = @"
<div class=""govuk-form-group govuk-form-group--error"">
<p class=""govuk-error-message"" id=""my-id-error""><span class=""govuk-visually-hidden"">Error:</span>A error</p>
<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>
</div>";
AssertEx.HtmlEqual(expectedHtml, output.RenderToString());
}
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());
}
