private void BuildFallbackBlock(TagHelperAttributeList attributes, DefaultTagHelperContent builder) { EnsureGlobbingUrlBuilder(); var fallbackSrcs = GlobbingUrlBuilder.BuildUrlList(FallbackSrc, FallbackSrcInclude, FallbackSrcExclude); if (fallbackSrcs.Any()) { // Build the <script> tag that checks the test method and if it fails, renders the extra script. builder.AppendEncoded(Environment.NewLine) .AppendEncoded("<script>(") .AppendEncoded(FallbackTestExpression) .AppendEncoded("||document.write(\""); // May have no "src" attribute in the dictionary e.g. if Src and SrcInclude were not bound. if (!attributes.ContainsName(SrcAttributeName)) { // Need this entry to place each fallback source. attributes.Add(new TagHelperAttribute(SrcAttributeName, value: null)); } foreach (var src in fallbackSrcs) { // Fallback "src" values come from bound attributes and globbing. Must always be non-null. Debug.Assert(src != null); builder.AppendEncoded("<script"); foreach (var attribute in attributes) { if (!attribute.Name.Equals(SrcAttributeName, StringComparison.OrdinalIgnoreCase)) { var encodedKey = JavaScriptEncoder.JavaScriptStringEncode(attribute.Name); var attributeValue = attribute.Value.ToString(); var encodedValue = JavaScriptEncoder.JavaScriptStringEncode(attributeValue); AppendAttribute(builder, encodedKey, encodedValue, escapeQuotes: true); } else { // Ignore attribute.Value; use src instead. var attributeValue = src; if (AppendVersion == true) { attributeValue = _fileVersionProvider.AddFileVersionToPath(attributeValue); } // attribute.Key ("src") does not need to be JavaScript-encoded. var encodedValue = JavaScriptEncoder.JavaScriptStringEncode(attributeValue); AppendAttribute(builder, attribute.Name, encodedValue, escapeQuotes: true); } } builder.AppendEncoded("><\\/script>"); } builder.AppendEncoded("\"));</script>"); } }
public async Task ProcessAsync_DoesNotOverrideOutputContent( string childContent, string outputContent, string expectedOutputContent) { // Arrange var tagBuilder = new TagBuilder("span2"); tagBuilder.InnerHtml.SetContentEncoded("New HTML"); tagBuilder.Attributes.Add("data-foo", "bar"); tagBuilder.Attributes.Add("data-hello", "world"); var generator = new Mock <IHtmlGenerator>(MockBehavior.Strict); var setup = generator .Setup(mock => mock.GenerateValidationMessage( It.IsAny <ViewContext>(), It.IsAny <string>(), It.IsAny <string>(), It.IsAny <string>(), It.IsAny <object>())) .Returns(tagBuilder); var validationMessageTagHelper = new ValidationMessageTagHelper(generator.Object) { For = CreateModelExpression("Hello") }; var output = new TagHelperOutput( "span", attributes: new TagHelperAttributeList()); output.Content.AppendEncoded(outputContent); var context = new TagHelperContext( allAttributes: new ReadOnlyTagHelperAttributeList <IReadOnlyTagHelperAttribute>( Enumerable.Empty <IReadOnlyTagHelperAttribute>()), items: new Dictionary <object, object>(), uniqueId: "test", getChildContentAsync: useCachedResult => { var tagHelperContent = new DefaultTagHelperContent(); tagHelperContent.AppendEncoded(childContent); return(Task.FromResult <TagHelperContent>(tagHelperContent)); }); var viewContext = CreateViewContext(); validationMessageTagHelper.ViewContext = viewContext; // Act await validationMessageTagHelper.ProcessAsync(context, output : output); // Assert Assert.Equal("span", output.TagName); Assert.Equal(2, output.Attributes.Count); var attribute = Assert.Single(output.Attributes, attr => attr.Name.Equals("data-foo")); Assert.Equal("bar", attribute.Value); attribute = Assert.Single(output.Attributes, attr => attr.Name.Equals("data-hello")); Assert.Equal("world", attribute.Value); Assert.Equal(expectedOutputContent, output.Content.GetContent()); }
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( allAttributes: new ReadOnlyTagHelperAttributeList <IReadOnlyTagHelperAttribute>( Enumerable.Empty <IReadOnlyTagHelperAttribute>()), items: new Dictionary <object, object>(), uniqueId: "test", getChildContentAsync: useCachedResult => { var tagHelperContent = new DefaultTagHelperContent(); tagHelperContent.AppendEncoded(tagHelperOutputContent.OriginalChildContent); return(Task.FromResult <TagHelperContent>(tagHelperContent)); }); var htmlAttributes = new TagHelperAttributeList { { "class", "form-control" }, }; var output = new TagHelperOutput(expectedTagName, htmlAttributes); output.PreContent.AppendEncoded(expectedPreContent); output.PostContent.AppendEncoded(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.AppendEncoded(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 async Task ProcessAsyncInTemplate_WithItems_GeneratesExpectedOutput_DoesNotChangeSelectList( object model, Type containerType, Func <object> modelAccessor, NameAndId nameAndId, string expectedOptions) { // Arrange var originalAttributes = new TagHelperAttributeList { { "class", "form-control" }, }; var originalPostContent = "original content"; var expectedAttributes = new TagHelperAttributeList(originalAttributes) { { "id", nameAndId.Id }, { "name", nameAndId.Name }, { "valid", "from validation attributes" }, }; var expectedPreContent = "original pre-content"; var expectedContent = "original content"; var expectedPostContent = originalPostContent + expectedOptions; var expectedTagName = "select"; 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 modelExpression = new ModelExpression(name: string.Empty, modelExplorer: modelExplorer); var tagHelperContext = new TagHelperContext( allAttributes: new ReadOnlyTagHelperAttributeList <IReadOnlyTagHelperAttribute>( Enumerable.Empty <IReadOnlyTagHelperAttribute>()), items: new Dictionary <object, object>(), uniqueId: "test", getChildContentAsync: useCachedResult => { var tagHelperContent = new DefaultTagHelperContent(); tagHelperContent.AppendEncoded("Something"); return(Task.FromResult <TagHelperContent>(tagHelperContent)); }); var output = new TagHelperOutput(expectedTagName, originalAttributes) { TagMode = TagMode.SelfClosing, }; output.PreContent.AppendEncoded(expectedPreContent); output.Content.AppendEncoded(expectedContent); output.PostContent.AppendEncoded(originalPostContent); var htmlGenerator = new TestableHtmlGenerator(metadataProvider) { ValidationAttributes = { { "valid", "from validation attributes" }, } }; var viewContext = TestableHtmlGenerator.GetViewContext(model, htmlGenerator, metadataProvider); viewContext.ViewData.TemplateInfo.HtmlFieldPrefix = nameAndId.Name; var items = new SelectList(new[] { "", "outer text", "inner text", "other text" }); var savedDisabled = items.Select(item => item.Disabled).ToList(); var savedGroup = items.Select(item => item.Group).ToList(); var savedSelected = items.Select(item => item.Selected).ToList(); var savedText = items.Select(item => item.Text).ToList(); var savedValue = items.Select(item => item.Value).ToList(); var tagHelper = new SelectTagHelper(htmlGenerator) { For = modelExpression, Items = items, ViewContext = viewContext, }; // Act await tagHelper.ProcessAsync(tagHelperContext, output); // Assert Assert.Equal(TagMode.SelfClosing, output.TagMode); Assert.Equal(expectedAttributes, output.Attributes); Assert.Equal(expectedPreContent, output.PreContent.GetContent()); Assert.Equal(expectedContent, output.Content.GetContent()); Assert.Equal(expectedPostContent, HtmlContentUtilities.HtmlContentToString(output.PostContent)); Assert.Equal(expectedTagName, output.TagName); Assert.NotNull(viewContext.FormContext?.FormData); Assert.Single( viewContext.FormContext.FormData, entry => entry.Key == SelectTagHelper.SelectedValuesFormDataKey); Assert.Equal(savedDisabled, items.Select(item => item.Disabled)); Assert.Equal(savedGroup, items.Select(item => item.Group)); Assert.Equal(savedSelected, items.Select(item => item.Selected)); Assert.Equal(savedText, items.Select(item => item.Text)); Assert.Equal(savedValue, items.Select(item => item.Value)); }