public async Task ProcessAsync_WithContentAndForAttributeGeneratesExpectedOutput()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-label",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-label",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Label content");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new LabelTagHelper(new DefaultGovUkHtmlGenerator(), new DefaultModelHelper())
{
For = "some-input-id"
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
var html = output.AsString();
Assert.Equal("<label class=\"govuk-label\" for=\"some-input-id\">Label content</label>", html);
}
/// <summary>
/// Renders the label.
/// </summary>
/// <param name="tagHelper">The tag helper.</param>
/// <param name="output">The tag helper output.</param>
internal static void RenderLabel(this BoconsFormTagHelperBase tagHelper, TagHelperOutput output)
{
// Label
if (!string.IsNullOrEmpty(tagHelper.Label))
{
output.PreElement.Prepend(LabelTagHelper.Build(tagHelper.Label, tagHelper.Id, tagHelper.IsRequired, tagHelper.FormContext));
}
}
protected virtual string GetLabelAsHtmlUsingTagHelper(TagHelperContext context, TagHelperOutput output)
{
var labelTagHelper = new LabelTagHelper(_generator)
{
For = TagHelper.AspFor,
ViewContext = TagHelper.ViewContext
};
return(RenderTagHelper(new TagHelperAttributeList(), context, labelTagHelper, _encoder, "label", TagMode.StartTagAndEndTag, true));
}
protected virtual async Task <string> GetLabelAsHtmlUsingTagHelperAsync(TagHelperContext context, TagHelperOutput output)
{
var labelTagHelper = new LabelTagHelper(_generator)
{
For = TagHelper.AspFor,
ViewContext = TagHelper.ViewContext
};
return(await labelTagHelper.RenderAsync(new TagHelperAttributeList(), context, _encoder, "label", TagMode.StartTagAndEndTag));
}
public async Task ProcessAsync_WithNoContentAndAspForAttributeGeneratesExpectedOutput()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-label",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-label",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
output.TagMode = TagMode.SelfClosing;
var htmlGenerator = new Mock <DefaultGovUkHtmlGenerator>()
{
CallBase = true
};
htmlGenerator
.Setup(mock => mock.GetFullHtmlFieldName(
/*viewContext: */ It.IsAny <ViewContext>(),
/*expression: */ It.IsAny <string>()))
.Returns("Foo");
htmlGenerator
.Setup(mock => mock.GetDisplayName(
/*viewContext: */ It.IsAny <ViewContext>(),
/*modelExplorer: */ It.IsAny <ModelExplorer>(),
/*expression: */ It.IsAny <string>()))
.Returns("Generated label");
var modelExplorer = new EmptyModelMetadataProvider().GetModelExplorerForType(typeof(Model), "Foo");
var tagHelper = new LabelTagHelper(htmlGenerator.Object)
{
AspFor = new ModelExpression("Foo", modelExplorer),
ViewContext = new ViewContext()
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
var html = output.AsString();
Assert.Equal("<label class=\"govuk-label\" for=\"Foo\">Generated label</label>", html);
}
public async Task WhenLabelTagHelperCalled_ThenCorrectClassCalled()
{
var tagHelper = Substitute.For <IMockViewComponentHelper>();
var componentTag = new LabelTagHelper(tagHelper)
{
Text = "LabelText", For = "ForText", AdditionalClass = "AdditionalClass"
};
await ViewComponentTestHelper.CallTagHelper("Label", tagHelper, componentTag);
}
private async Task <TagHelperOutput> CreateLabelElement(TagHelperContext context)
{
LabelTagHelper labelTagHelper = new LabelTagHelper(Generator);
labelTagHelper.ViewContext = ViewContext;
labelTagHelper.For = For;
var tagHelperOutput = TagHelperExtension.CreateTagHelperOutput("label");
await labelTagHelper.ProcessAsync(context, tagHelperOutput);
return(tagHelperOutput);
}
protected virtual async Task <string> GetLabelAsHtmlUsingTagHelperAsync(TagHelperContext context, TagHelperOutput output, bool isCheckbox)
{
var labelTagHelper = new LabelTagHelper(_generator)
{
For = TagHelper.AspFor,
ViewContext = TagHelper.ViewContext
};
var attributeList = new TagHelperAttributeList();
attributeList.AddClass(isCheckbox ? "form-check-label" : "form-label");
return(await labelTagHelper.RenderAsync(attributeList, context, _encoder, "label", TagMode.StartTagAndEndTag));
}
private async Task <TagHelperOutput> GenerateLabel(TagHelperContext context)
{
var labelTagHelper =
new LabelTagHelper(_htmlGenerator)
{
For = this.For,
ViewContext = this.ViewContext,
};
var tagHelperOutput = CreateTagHelperOutput("label");
await labelTagHelper.ProcessAsync(context, tagHelperOutput);
return(tagHelperOutput);
}
private async Task <TagHelperOutput> GenerateLabel(TagHelperContext context)
{
var labelTagHelper =
new LabelTagHelper(_htmlGenerator)
{
For = this.For,
ViewContext = this.ViewContext,
};
var tagHelperOutput = CreateTagHelperOutput("label");
tagHelperOutput.Attributes.Add(new TagHelperAttribute("class", _defaultLabelClass));
await labelTagHelper.ProcessAsync(context, tagHelperOutput);
return(tagHelperOutput);
}
protected virtual string GetLabelAsHtmlUsingTagHelper(TagHelperContext context, TagHelperOutput output, bool isCheckbox)
{
var labelTagHelper = new LabelTagHelper(_generator)
{
For = TagHelper.AspFor,
ViewContext = TagHelper.ViewContext
};
var attributeList = new TagHelperAttributeList();
if (isCheckbox)
{
attributeList.AddClass("form-check-label");
}
return(RenderTagHelper(attributeList, context, labelTagHelper, _encoder, "label", TagMode.StartTagAndEndTag, true));
}
protected virtual async Task <string> GetLabelAsHtmlUsingTagHelperAsync(TagHelperContext context, TagHelperOutput output, bool isCheckbox)
{
var labelTagHelper = new LabelTagHelper(_generator)
{
For = TagHelper.AspFor,
ViewContext = TagHelper.ViewContext
};
var attributeList = new TagHelperAttributeList();
if (isCheckbox)
{
attributeList.AddClass("custom-control-label");
}
return(await labelTagHelper.RenderAsync(attributeList, context, _encoder, "label", TagMode.StartTagAndEndTag).ConfigureAwait(false));
}
[Test] public async Task Can_set_label_content()
{
// arrange
var command = new Command();
var tag = new LabelTagHelper
{
For = MakeExpression(command, m => m.Name),
RequestServices = ServiceProvider
};
// act
var output = await ProcessTagAsync(tag, "miru-label", "Customer Name");
// assert
output.TagName.ShouldBeNull();
output.PreElement.GetContent().ShouldBe("<label for=\"Name\">Customer Name</label>");
}
private async Task <string> buildLabelHtml(ModelExplorer property, TweakingConfiguration tweakingConfig)
{
TagHelper label = new LabelTagHelper(_htmlGenerator)
{
For = new ModelExpression(property.GetFullName(), property),
ViewContext = _viewContext
};
PropertyTweakingConfiguration propertyConfig = tweakingConfig
.GetByPropertyFullName(property.GetFullName());
return(await GetGeneratedContentFromTagHelper(
"label",
TagMode.StartTagAndEndTag, label,
new TagHelperAttributeList()
{
new TagHelperAttribute("class", propertyConfig?.LabelClasses)
}));
}
private async Task <TagHelperOutput> CreateLabelElement(TagHelperContext context)
{
LabelTagHelper labelTagHelper =
new LabelTagHelper(Generator)
{
For = this.For,
ViewContext = this.ViewContext
};
TagHelperOutput labelOutput = CreateTagHelperOutput("label");
await labelTagHelper.ProcessAsync(context, labelOutput);
labelOutput.Attributes.Add(
new TagHelperAttribute("class", _defaultLabelClass));
return(labelOutput);
}
public override async Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
{
// Get input tag
var inputTag = new InputTagHelper(_htmlGenerator)
{
For = this.For,
ViewContext = this.ViewContext
};
// Get label tag
var labelTag = new LabelTagHelper(_htmlGenerator)
{
For = this.For,
ViewContext = this.ViewContext
};
// Get validation tag
var validationTag = new ValidationMessageTagHelper(_htmlGenerator)
{
For = this.For,
ViewContext = this.ViewContext
};
output.Content.AppendHtml(await labelTag.GetGeneratedContent(_htmlEncoder, "label", TagMode.StartTagAndEndTag, new TagHelperAttributeList {
new TagHelperAttribute("class", "col-md-2 control-label")
}));
// Field and validation within the same div
output.Content.AppendHtml("<div class=\"col-md-10\">");
output.Content.AppendHtml(await inputTag.GetGeneratedContent(_htmlEncoder, "input", TagMode.StartTagAndEndTag, new TagHelperAttributeList {
new TagHelperAttribute("class", "form-control")
}));
output.Content.AppendHtml(await validationTag.GetGeneratedContent(_htmlEncoder, "span", TagMode.StartTagAndEndTag, new TagHelperAttributeList {
new TagHelperAttribute("class", "text-danger")
}));
output.Content.AppendHtml("</div>");
string classValue = "form-group";
if (output.Attributes.ContainsName("class"))
{
classValue += " " + output.Attributes["class"].Value;
}
output.Attributes.SetAttribute("class", classValue);
}
public override void Process(TagHelperContext context, TagHelperOutput output)
{
if (!NotEdit)
{
var inputContext = CrateTagHelperContext();
var inputOutput = CreateTagHelperOutput("input");
inputOutput.Attributes.Add("class", "form-control");
var input = new InputTagHelper(_htmlGenerator)
{
For = For,
ViewContext = ViewContext
};
input.Process(inputContext, inputOutput);
output.Content.AppendHtml(inputOutput);
}
else
{
var labelContext = CrateTagHelperContext();
var labelOutput = CreateTagHelperOutput("label");
//labelOutput.Content.Append(LabelContent);
if (For != null)
{
labelOutput.Attributes.Add("for", For.Name);
}
var label = new LabelTagHelper(_htmlGenerator)
{
ViewContext = ViewContext
};
label.Process(labelContext, labelOutput);
output.Content.AppendHtml(labelOutput);
}
}
/// <summary>
/// 测试初始化
/// </summary>
public LabelTagHelperTest(ITestOutputHelper output)
{
_output = output;
_component = new LabelTagHelper();
}
public async Task ProcessAsync_GeneratesExpectedOutput_WithDisplayName(
string displayName,
string originalChildContent,
string htmlFieldPrefix,
string expectedContent,
string expectedId)
{
// Arrange
var expectedAttributes = new TagHelperAttributeList
{
{ "for", expectedId }
};
var name = nameof(NestedModel.Text);
var metadataProvider = new TestModelMetadataProvider();
metadataProvider
.ForProperty <NestedModel>(name)
.DisplayDetails(metadata => metadata.DisplayName = () => displayName);
var htmlGenerator = new TestableHtmlGenerator(metadataProvider);
var viewContext = TestableHtmlGenerator.GetViewContext(
model: null,
htmlGenerator: htmlGenerator,
metadataProvider: metadataProvider);
var viewData = new ViewDataDictionary <NestedModel>(metadataProvider, viewContext.ModelState);
viewData.TemplateInfo.HtmlFieldPrefix = htmlFieldPrefix;
viewContext.ViewData = viewData;
var containerExplorer = metadataProvider.GetModelExplorerForType(typeof(NestedModel), model: null);
var modelExplorer = containerExplorer.GetExplorerForProperty(name);
var modelExpression = new ModelExpression(name, modelExplorer);
var tagHelper = new LabelTagHelper(htmlGenerator)
{
For = modelExpression,
ViewContext = viewContext,
};
var tagHelperContext = new TagHelperContext(
tagName: "label",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"label",
new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.AppendHtml(originalChildContent);
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
// Act
await tagHelper.ProcessAsync(tagHelperContext, output);
// Assert
Assert.Equal(expectedAttributes, output.Attributes);
Assert.Equal(expectedContent, HtmlContentUtilities.HtmlContentToString(output.Content));
}
public async Task ProcessAsync_GeneratesExpectedOutput(
object model,
Type containerType,
Func <object> modelAccessor,
string propertyPath,
TagHelperOutputContent tagHelperOutputContent)
{
// Arrange
var expectedTagName = "not-label";
var expectedAttributes = new TagHelperAttributeList
{
{ "class", "form-control" },
{ "for", tagHelperOutputContent.ExpectedId }
};
var metadataProvider = new TestModelMetadataProvider();
var containerMetadata = metadataProvider.GetMetadataForType(containerType);
var containerExplorer = metadataProvider.GetModelExplorerForType(containerType, model);
var propertyMetadata = metadataProvider.GetMetadataForProperty(containerType, "Text");
var modelExplorer = containerExplorer.GetExplorerForExpression(propertyMetadata, modelAccessor());
var htmlGenerator = new TestableHtmlGenerator(metadataProvider);
var modelExpression = new ModelExpression(propertyPath, modelExplorer);
var tagHelper = new LabelTagHelper(htmlGenerator)
{
For = modelExpression,
};
var expectedPreContent = "original pre-content";
var expectedPostContent = "original post-content";
var tagHelperContext = new TagHelperContext(
tagName: "not-label",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var htmlAttributes = new TagHelperAttributeList
{
{ "class", "form-control" },
};
var output = new TagHelperOutput(
expectedTagName,
htmlAttributes,
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.AppendHtml(tagHelperOutputContent.OriginalChildContent);
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
output.PreContent.AppendHtml(expectedPreContent);
output.PostContent.AppendHtml(expectedPostContent);
// LabelTagHelper checks IsContentModified so we don't want to forcibly set it if
// tagHelperOutputContent.OriginalContent is going to be null or empty.
if (!string.IsNullOrEmpty(tagHelperOutputContent.OriginalContent))
{
output.Content.AppendHtml(tagHelperOutputContent.OriginalContent);
}
var viewContext = TestableHtmlGenerator.GetViewContext(model, htmlGenerator, metadataProvider);
tagHelper.ViewContext = viewContext;
// Act
await tagHelper.ProcessAsync(tagHelperContext, output);
// Assert
Assert.Equal(expectedAttributes, output.Attributes);
Assert.Equal(expectedPreContent, output.PreContent.GetContent());
Assert.Equal(
tagHelperOutputContent.ExpectedContent,
HtmlContentUtilities.HtmlContentToString(output.Content));
Assert.Equal(expectedPostContent, output.PostContent.GetContent());
Assert.Equal(TagMode.StartTagAndEndTag, output.TagMode);
Assert.Equal(expectedTagName, output.TagName);
}
public static void SetLabelContext(this TagHelperContext context, LabelTagHelper tagHelper) {
if (context.Items.ContainsKey(LabelContext))
context.Items[LabelContext] = tagHelper;
else
context.Items.Add(LabelContext, tagHelper);
}