public void SetHtmlContent_TextIsNotFurtherEncoded()
{
// Arrange
var tagHelperContent = new DefaultTagHelperContent();
// Act
tagHelperContent.SetHtmlContent("Hi");
// Assert
Assert.Equal("Hi", tagHelperContent.GetContent(new HtmlTestEncoder()));
}
public async Task ProcessAsync_GeneratesExpectedOutput()
{
// Arrange
var expectedTagName = "not-div";
var metadataProvider = new TestModelMetadataProvider();
var htmlGenerator = new TestableHtmlGenerator(metadataProvider);
var validationSummaryTagHelper = new ValidationSummaryTagHelper(htmlGenerator)
{
ValidationSummary = ValidationSummary.All,
};
var expectedPreContent = "original pre-content";
var expectedContent = "original content";
var tagHelperContext = new TagHelperContext(
allAttributes: new ReadOnlyTagHelperAttributeList<IReadOnlyTagHelperAttribute>(
Enumerable.Empty<IReadOnlyTagHelperAttribute>()),
items: new Dictionary<object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
expectedTagName,
attributes: new TagHelperAttributeList
{
{ "class", "form-control" }
},
getChildContentAsync: useCachedResult =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return Task.FromResult<TagHelperContent>(tagHelperContent);
});
output.PreContent.SetContent(expectedPreContent);
output.Content.SetContent(expectedContent);
output.PostContent.SetContent("Custom Content");
Model model = null;
var viewContext = TestableHtmlGenerator.GetViewContext(model, htmlGenerator, metadataProvider);
validationSummaryTagHelper.ViewContext = viewContext;
// Act
await validationSummaryTagHelper.ProcessAsync(tagHelperContext, output);
// Assert
Assert.Equal(2, output.Attributes.Count);
var attribute = Assert.Single(output.Attributes, attr => attr.Name.Equals("class"));
Assert.Equal("form-control validation-summary-valid", attribute.Value);
attribute = Assert.Single(output.Attributes, attr => attr.Name.Equals("data-valmsg-summary"));
Assert.Equal("true", attribute.Value);
Assert.Equal(expectedPreContent, output.PreContent.GetContent());
Assert.Equal(expectedContent, output.Content.GetContent());
Assert.Equal("Custom Content<ul><li style=\"display:none\"></li>" + Environment.NewLine + "</ul>",
output.PostContent.GetContent());
Assert.Equal(expectedTagName, output.TagName);
}
public void CanSetContent()
{
// Arrange
var tagHelperContent = new DefaultTagHelperContent();
var expected = "HtmlEncode[[Hello World!]]";
// Act
tagHelperContent.SetContent("Hello World!");
// Assert
Assert.Equal(expected, tagHelperContent.GetContent(new HtmlTestEncoder()));
}
public void SetHtmlContent_ClearsExistingContent()
{
// Arrange
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.AppendHtml("Contoso");
// Act
tagHelperContent.SetHtmlContent("Hello World!");
// Assert
Assert.Equal("Hello World!", tagHelperContent.GetContent(new HtmlTestEncoder()));
}
public void SetContent_WithTagHelperContent_WorksAsExpected(string content, string expected)
{
// Arrange
var tagHelperContent = new DefaultTagHelperContent();
var copiedTagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent(content);
// Act
copiedTagHelperContent.SetContent(tagHelperContent);
// Assert
Assert.Equal(expected, copiedTagHelperContent.GetContent(new HtmlTestEncoder()));
}
protected TagHelperOutput GetSimpleTagHelperOutput()
{
var output = new TagHelperOutput("a", attributes: new TagHelperAttributeList(),
getChildContentAsync: useCachedResult =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return Task.FromResult<TagHelperContent>(tagHelperContent);
});
output.Content.SetContent(string.Empty);
return output;
}
public void SetContentClearsExistingContent()
{
// Arrange
var tagHelperContent = new DefaultTagHelperContent();
var expected = "HtmlEncode[[Hello World!]]";
tagHelperContent.SetContent("Contoso");
// Act
tagHelperContent.SetContent("Hello World!");
// Assert
Assert.Equal(expected, tagHelperContent.GetContent(new CommonTestEncoder()));
}
public override async Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
{
if (ShowDismiss)
{
output.PreContent.AppendFormat(@"<button type='button' class='btn btn-default' data-dismiss='modal'>{0}</button>", DismissText);
}
var childContent = await output.GetChildContentAsync();
var footerContent = new DefaultTagHelperContent();
if (ShowDismiss)
{
footerContent.AppendFormat(@"<button type='button' class='btn btn-default' data-dismiss='modal'>{0}</button>", DismissText);
}
footerContent.Append(childContent);
var modalContext = (ModalContext)context.Items[typeof(ModalTagHelper)];
modalContext.Footer = footerContent;
output.SuppressOutput();
}
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.AppendHtml(Environment.NewLine)
.AppendHtml("<script>(")
.AppendHtml(FallbackTestExpression)
.AppendHtml("||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.AppendHtml("<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.AppendHtml("><\\/script>");
}
builder.AppendHtml("\"));</script>");
}
}
public void IsEmpty_FalseAfterAppend()
{
// Arrange
var tagHelperContent = new DefaultTagHelperContent();
// Act
tagHelperContent.Append("Hello");
// Assert
Assert.False(tagHelperContent.IsEmpty);
}
/// <inheritdoc />
public override void Process(TagHelperContext context, TagHelperOutput output)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (output == null)
{
throw new ArgumentNullException(nameof(output));
}
// Pass through attribute that is also a well-known HTML attribute.
if (Src != null)
{
output.CopyHtmlAttribute(SrcAttributeName, context);
}
// If there's no "src" attribute in output.Attributes this will noop.
ProcessUrlAttribute(SrcAttributeName, output);
// Retrieve the TagHelperOutput variation of the "src" attribute in case other TagHelpers in the
// pipeline have touched the value. If the value is already encoded this ScriptTagHelper may
// not function properly.
Src = output.Attributes[SrcAttributeName]?.Value as string;
var modeResult = AttributeMatcher.DetermineMode(context, ModeDetails);
modeResult.LogDetails(Logger, this, context.UniqueId, ViewContext.View.Path);
if (!modeResult.FullMatches.Any())
{
// No attributes matched so we have nothing to do
return;
}
// NOTE: Values in TagHelperOutput.Attributes may already be HTML-encoded.
var attributes = new TagHelperAttributeList(output.Attributes);
if (AppendVersion == true)
{
EnsureFileVersionProvider();
if (Src != null)
{
output.Attributes[SrcAttributeName].Value = _fileVersionProvider.AddFileVersionToPath(Src);
}
}
var builder = new DefaultTagHelperContent();
// Get the highest matched mode
var mode = modeResult.FullMatches.Select(match => match.Mode).Max();
if (mode == Mode.GlobbedSrc || mode == Mode.Fallback && !string.IsNullOrEmpty(SrcInclude))
{
BuildGlobbedScriptTags(attributes, builder);
if (string.IsNullOrEmpty(Src))
{
// Only SrcInclude is specified. Don't render the original tag.
output.TagName = null;
output.Content.SetContent(string.Empty);
}
}
if (mode == Mode.Fallback)
{
string resolvedUrl;
if (TryResolveUrl(FallbackSrc, encodeWebRoot: false, resolvedUrl: out resolvedUrl))
{
FallbackSrc = resolvedUrl;
}
BuildFallbackBlock(attributes, builder);
}
output.PostElement.SetContent(builder);
}
private static TagHelperOutput GetTagHelperOutput(
string tagName = "cache",
TagHelperAttributeList attributes = null,
string childContent = "some child content")
{
attributes = attributes ?? new TagHelperAttributeList { { "attr", "value" } };
return new TagHelperOutput(
tagName,
attributes,
getChildContentAsync: useCachedResult =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetHtmlContent(childContent);
return Task.FromResult<TagHelperContent>(tagHelperContent);
});
}
/// <inheritdoc />
public override void Process(TagHelperContext context, TagHelperOutput output)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (output == null)
{
throw new ArgumentNullException(nameof(output));
}
// Pass through attribute that is also a well-known HTML attribute.
if (Href != null)
{
output.CopyHtmlAttribute(HrefAttributeName, context);
}
// If there's no "href" attribute in output.Attributes this will noop.
ProcessUrlAttribute(HrefAttributeName, output);
// Retrieve the TagHelperOutput variation of the "href" attribute in case other TagHelpers in the
// pipeline have touched the value. If the value is already encoded this LinkTagHelper may
// not function properly.
Href = output.Attributes[HrefAttributeName]?.Value as string;
// NOTE: Values in TagHelperOutput.Attributes may already be HTML-encoded.
var attributes = new TagHelperAttributeList(output.Attributes);
var builder = new DefaultTagHelperContent();
if (!string.IsNullOrEmpty(HrefInclude))
{
BuildGlobbedLinkTags(attributes, builder);
if (string.IsNullOrEmpty(Href))
{
// Only HrefInclude is specified. Don't render the original tag.
output.TagName = null;
output.Content.SetContent(HtmlString.Empty);
}
}
output.PostElement.SetContent(builder);
}
public async Task ProcessAsync_BindsRouteValues()
{
// Arrange
var testViewContext = CreateViewContext();
var context = new TagHelperContext(
allAttributes: new ReadOnlyTagHelperAttributeList<IReadOnlyTagHelperAttribute>(
Enumerable.Empty<IReadOnlyTagHelperAttribute>()),
items: new Dictionary<object, object>(),
uniqueId: "test");
var expectedAttribute = new TagHelperAttribute("asp-ROUTEE-NotRoute", "something");
var output = new TagHelperOutput(
"form",
attributes: new TagHelperAttributeList(),
getChildContentAsync: useCachedResult =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return Task.FromResult<TagHelperContent>(tagHelperContent);
});
output.Attributes.Add(expectedAttribute);
var generator = new Mock<IHtmlGenerator>(MockBehavior.Strict);
generator
.Setup(mock => mock.GenerateForm(
It.IsAny<ViewContext>(),
It.IsAny<string>(),
It.IsAny<string>(),
It.IsAny<object>(),
It.IsAny<string>(),
It.IsAny<object>()))
.Callback<ViewContext, string, string, object, string, object>(
(viewContext, actionName, controllerName, routeValues, method, htmlAttributes) =>
{
// Fixes Roslyn bug with lambdas
generator.ToString();
var routeValueDictionary = (Dictionary<string, object>)routeValues;
Assert.Equal(2, routeValueDictionary.Count);
var routeValue = Assert.Single(routeValueDictionary, attr => attr.Key.Equals("val"));
Assert.Equal("hello", routeValue.Value);
routeValue = Assert.Single(routeValueDictionary, attr => attr.Key.Equals("-Name"));
Assert.Equal("Value", routeValue.Value);
})
.Returns(new TagBuilder("form"))
.Verifiable();
var formTagHelper = new FormTagHelper(generator.Object)
{
Action = "Index",
Antiforgery = false,
ViewContext = testViewContext,
RouteValues =
{
{ "val", "hello" },
{ "-Name", "Value" },
},
};
// Act & Assert
await formTagHelper.ProcessAsync(context, output);
Assert.Equal("form", output.TagName);
Assert.Equal(TagMode.StartTagAndEndTag ,output.TagMode);
var attribute = Assert.Single(output.Attributes);
Assert.Equal(expectedAttribute, attribute);
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Empty(output.PostContent.GetContent());
generator.Verify();
}
public void AppendHtml_DoesNotGetEncoded()
{
// Arrange
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.AppendHtml("Hi");
var writer = new StringWriter();
// Act
tagHelperContent.WriteTo(writer, new HtmlTestEncoder());
// Assert
Assert.Equal("Hi", writer.ToString());
}
public void IsEmpty_FalseAfterAppendTagHelper()
{
// Arrange
var tagHelperContent = new DefaultTagHelperContent();
var copiedTagHelperContent = new DefaultTagHelperContent();
copiedTagHelperContent.SetContent("Hello");
// Act
tagHelperContent.AppendHtml(copiedTagHelperContent);
// Assert
Assert.False(tagHelperContent.IsEmpty);
}
public async Task ProcessAsync_CallsIntoRouteLinkWithExpectedParameters()
{
// Arrange
var context = new TagHelperContext(
allAttributes: new ReadOnlyTagHelperAttributeList<IReadOnlyTagHelperAttribute>(
Enumerable.Empty<IReadOnlyTagHelperAttribute>()),
items: new Dictionary<object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"a",
attributes: new TagHelperAttributeList(),
getChildContentAsync: useCachedResult =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return Task.FromResult<TagHelperContent>(tagHelperContent);
});
output.Content.SetContent(string.Empty);
var generator = new Mock<IHtmlGenerator>(MockBehavior.Strict);
generator
.Setup(mock => mock.GenerateRouteLink(
string.Empty,
"Default",
"http",
"contoso.com",
"hello=world",
It.IsAny<IDictionary<string, object>>(),
null))
.Returns(new TagBuilder("a"))
.Verifiable();
var anchorTagHelper = new AnchorTagHelper(generator.Object)
{
Fragment = "hello=world",
Host = "contoso.com",
Protocol = "http",
Route = "Default",
};
// Act & Assert
await anchorTagHelper.ProcessAsync(context, output);
generator.Verify();
Assert.Equal("a", output.TagName);
Assert.Empty(output.Attributes);
Assert.True(output.Content.IsEmpty);
}
public void CanClearContent()
{
// Arrange
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Hello World");
// Act
tagHelperContent.Clear();
// Assert
Assert.True(tagHelperContent.IsEmpty);
}
public async Task ProcessAsync_CallsIntoGenerateRouteFormWithExpectedParameters()
{
// Arrange
var viewContext = CreateViewContext();
var context = new TagHelperContext(
allAttributes: new ReadOnlyTagHelperAttributeList<IReadOnlyTagHelperAttribute>(
Enumerable.Empty<IReadOnlyTagHelperAttribute>()),
items: new Dictionary<object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"form",
attributes: new TagHelperAttributeList(),
getChildContentAsync: useCachedResult =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return Task.FromResult<TagHelperContent>(tagHelperContent);
});
var generator = new Mock<IHtmlGenerator>(MockBehavior.Strict);
generator
.Setup(mock => mock.GenerateRouteForm(
viewContext,
"Default",
It.Is<Dictionary<string, object>>(m => string.Equals(m["name"], "value")),
null,
null))
.Returns(new TagBuilder("form"))
.Verifiable();
var formTagHelper = new FormTagHelper(generator.Object)
{
Antiforgery = false,
Route = "Default",
ViewContext = viewContext,
RouteValues =
{
{ "name", "value" },
},
};
// Act & Assert
await formTagHelper.ProcessAsync(context, output);
generator.Verify();
Assert.Equal("form", output.TagName);
Assert.Equal(TagMode.StartTagAndEndTag, output.TagMode);
Assert.Empty(output.Attributes);
Assert.Empty(output.PreElement.GetContent());
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Empty(output.PostContent.GetContent());
Assert.Empty(output.PostElement.GetContent());
}
public void CanGetContent()
{
// Arrange
var tagHelperContent = new DefaultTagHelperContent();
var expected = "Hello World!";
tagHelperContent.SetContent(expected);
// Act
var actual = tagHelperContent.GetContent();
// Assert
Assert.Equal(expected, actual);
}
public void Fluent_SetContent_AppendFormat_Append_WritesExpectedContent()
{
// Arrange
var tagHelperContent = new DefaultTagHelperContent();
var expected = "HtmlEncode[[First ]]HtmlEncode[[Second]] Third HtmlEncode[[Fourth]]";
// Act
tagHelperContent
.SetContent("First ")
.AppendFormat("{0} Third ", "Second")
.Append("Fourth");
// Assert
Assert.Equal(expected, tagHelperContent.GetContent(new HtmlTestEncoder()));
}
public void Fluent_Clear_Set_Append_WritesExpectedContent()
{
// Arrange
var tagHelperContent = new DefaultTagHelperContent();
var expected = "HtmlEncode[[Hello ]]HtmlEncode[[World!]]";
tagHelperContent.SetContent("Some Random Content");
// Act
tagHelperContent.Clear().SetContent("Hello ").Append("World!");
// Assert
Assert.Equal(expected, tagHelperContent.GetContent(new HtmlTestEncoder()));
}
private Func<bool, Task<TagHelperContent>> GetEmptyChildContent()
{
TagHelperContent content = new DefaultTagHelperContent();
return b => Task.FromResult(content);
}
public async Task ProcessAsync_ReturnsCachedValue_IfEnabled()
{
// Arrange
var id = "unique-id";
var childContent = "original-child-content";
var cache = new Mock<IMemoryCache>();
cache.CallBase = true;
var value = new DefaultTagHelperContent().SetContent("ok");
cache.Setup(c => c.CreateLinkingScope()).Returns(new Mock<IEntryLink>().Object);
cache.Setup(c => c.Set(
/*key*/ It.IsAny<string>(),
/*value*/ It.IsAny<object>(),
/*options*/ It.IsAny<MemoryCacheEntryOptions>()))
.Returns(value)
.Verifiable();
object cacheResult;
cache.Setup(c => c.TryGetValue(It.IsAny<string>(), out cacheResult))
.Returns(false);
var tagHelperContext = GetTagHelperContext(id);
var tagHelperOutput = GetTagHelperOutput(
attributes: new TagHelperAttributeList(),
childContent: childContent);
var cacheTagHelper = new CacheTagHelper(cache.Object, new HtmlTestEncoder())
{
ViewContext = GetViewContext(),
Enabled = true
};
// Act
await cacheTagHelper.ProcessAsync(tagHelperContext, tagHelperOutput);
// Assert
Assert.Empty(tagHelperOutput.PreContent.GetContent());
Assert.Empty(tagHelperOutput.PostContent.GetContent());
Assert.True(tagHelperOutput.IsContentModified);
Assert.Equal(childContent, tagHelperOutput.Content.GetContent());
cache.Verify(c => c.Set(
/*key*/ It.IsAny<string>(),
/*value*/ It.IsAny<object>(),
/*options*/ It.IsAny<MemoryCacheEntryOptions>()),
Times.Once);
}
public async Task ProcessAsync_GeneratesAntiforgeryCorrectly(
bool? antiforgery,
string expectedPostContent)
{
// Arrange
var viewContext = CreateViewContext();
var context = new TagHelperContext(
allAttributes: new ReadOnlyTagHelperAttributeList<IReadOnlyTagHelperAttribute>(
Enumerable.Empty<IReadOnlyTagHelperAttribute>()),
items: new Dictionary<object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"form",
attributes: new TagHelperAttributeList(),
getChildContentAsync: useCachedResult =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return Task.FromResult<TagHelperContent>(tagHelperContent);
});
var generator = new Mock<IHtmlGenerator>(MockBehavior.Strict);
generator
.Setup(mock => mock.GenerateForm(
It.IsAny<ViewContext>(),
It.IsAny<string>(),
It.IsAny<string>(),
It.IsAny<object>(),
It.IsAny<string>(),
It.IsAny<object>()))
.Returns(new TagBuilder("form"));
generator.Setup(mock => mock.GenerateAntiforgery(viewContext))
.Returns(new HtmlString("<input />"));
var formTagHelper = new FormTagHelper(generator.Object)
{
Action = "Index",
Antiforgery = antiforgery,
ViewContext = viewContext,
};
// Act
await formTagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("form", output.TagName);
Assert.Equal(TagMode.StartTagAndEndTag, output.TagMode);
Assert.Empty(output.Attributes);
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Equal(expectedPostContent, output.PostContent.GetContent());
}
public async Task ProcessAsync_FlowsEntryLinkThatAllowsAddingTriggersToAddedEntry()
{
// Arrange
var id = "some-id";
var expectedContent = new DefaultTagHelperContent();
expectedContent.SetContent("some-content");
var tokenSource = new CancellationTokenSource();
var cache = new MemoryCache(new MemoryCacheOptions());
var cacheEntryOptions = new MemoryCacheEntryOptions()
.AddExpirationToken(new CancellationChangeToken(tokenSource.Token));
var tagHelperContext = new TagHelperContext(
allAttributes: new TagHelperAttributeList(),
items: new Dictionary<object, object>(),
uniqueId: id);
var tagHelperOutput = new TagHelperOutput(
"cache",
new TagHelperAttributeList { { "attr", "value" } },
getChildContentAsync: useCachedResult =>
{
TagHelperContent tagHelperContent;
if (!cache.TryGetValue("key1", out tagHelperContent))
{
tagHelperContent = expectedContent;
cache.Set("key1", tagHelperContent, cacheEntryOptions);
}
return Task.FromResult(tagHelperContent);
});
tagHelperOutput.PreContent.SetContent("<cache>");
tagHelperOutput.PostContent.SetContent("</cache>");
var cacheTagHelper = new CacheTagHelper(cache, new HtmlTestEncoder())
{
ViewContext = GetViewContext(),
};
var key = cacheTagHelper.GenerateKey(tagHelperContext);
// Act - 1
await cacheTagHelper.ProcessAsync(tagHelperContext, tagHelperOutput);
IHtmlContent cachedValue;
var result = cache.TryGetValue(key, out cachedValue);
// Assert - 1
Assert.Equal("HtmlEncode[[some-content]]", tagHelperOutput.Content.GetContent());
Assert.True(result);
// Act - 2
tokenSource.Cancel();
result = cache.TryGetValue(key, out cachedValue);
// Assert - 2
Assert.False(result);
Assert.Null(cachedValue);
}
public async Task ProcessAsync_GeneratesExpectedOutput()
{
// Arrange
var expectedTagName = "not-form";
var metadataProvider = new TestModelMetadataProvider();
var tagHelperContext = new TagHelperContext(
allAttributes: new TagHelperAttributeList
{
{ "id", "myform" },
{ "asp-route-name", "value" },
{ "asp-action", "index" },
{ "asp-controller", "home" },
{ "method", "post" },
{ "asp-antiforgery", true }
},
items: new Dictionary<object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
expectedTagName,
attributes: new TagHelperAttributeList
{
{ "id", "myform" },
},
getChildContentAsync: useCachedResult =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something Else");
return Task.FromResult<TagHelperContent>(tagHelperContent);
});
output.PostContent.SetContent("Something");
var urlHelper = new Mock<IUrlHelper>();
urlHelper
.Setup(mock => mock.Action(It.IsAny<UrlActionContext>())).Returns("home/index");
var htmlGenerator = new TestableHtmlGenerator(metadataProvider, urlHelper.Object);
var viewContext = TestableHtmlGenerator.GetViewContext(
model: null,
htmlGenerator: htmlGenerator,
metadataProvider: metadataProvider);
var expectedPostContent = "Something" +
HtmlContentUtilities.HtmlContentToString(
htmlGenerator.GenerateAntiforgery(viewContext),
HtmlEncoder.Default);
var formTagHelper = new FormTagHelper(htmlGenerator)
{
Action = "index",
Antiforgery = true,
Controller = "home",
ViewContext = viewContext,
RouteValues =
{
{ "name", "value" },
},
};
// Act
await formTagHelper.ProcessAsync(tagHelperContext, output);
// Assert
Assert.Equal(3, output.Attributes.Count);
var attribute = Assert.Single(output.Attributes, attr => attr.Name.Equals("id"));
Assert.Equal("myform", attribute.Value);
attribute = Assert.Single(output.Attributes, attr => attr.Name.Equals("method"));
Assert.Equal("post", attribute.Value);
attribute = Assert.Single(output.Attributes, attr => attr.Name.Equals("action"));
Assert.Equal("home/index", attribute.Value);
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Equal(expectedPostContent, output.PostContent.GetContent());
Assert.Equal(expectedTagName, output.TagName);
}
public void WriteTo_WritesToATextWriter()
{
// Arrange
var tagHelperContent = new DefaultTagHelperContent();
var writer = new StringWriter();
tagHelperContent.SetContent("Hello ");
tagHelperContent.Append("World");
// Act
tagHelperContent.WriteTo(writer, new HtmlTestEncoder());
// Assert
Assert.Equal("HtmlEncode[[Hello ]]HtmlEncode[[World]]", writer.ToString());
}
public async Task ProcessAsync_SupportsAntiforgeryIfActionIsSpecified(
bool? antiforgery,
string expectedPostContent)
{
// Arrange
var viewContext = CreateViewContext();
var generator = new Mock<IHtmlGenerator>();
generator.Setup(mock => mock.GenerateAntiforgery(It.IsAny<ViewContext>()))
.Returns(new HtmlString("<input />"));
var formTagHelper = new FormTagHelper(generator.Object)
{
Antiforgery = antiforgery,
ViewContext = viewContext,
};
var output = new TagHelperOutput(
tagName: "form",
attributes: new TagHelperAttributeList
{
{ "aCTiON", "my-action" },
},
getChildContentAsync: useCachedResult =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return Task.FromResult<TagHelperContent>(tagHelperContent);
});
var context = new TagHelperContext(
allAttributes: new ReadOnlyTagHelperAttributeList<IReadOnlyTagHelperAttribute>(
Enumerable.Empty<IReadOnlyTagHelperAttribute>()),
items: new Dictionary<object, object>(),
uniqueId: "test");
// Act
await formTagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("form", output.TagName);
Assert.Equal(TagMode.StartTagAndEndTag, output.TagMode);
var attribute = Assert.Single(output.Attributes);
Assert.Equal(new TagHelperAttribute("aCTiON", "my-action"), attribute);
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Equal(expectedPostContent, output.PostContent.GetContent());
}
public async Task ProcessAsync_GeneratesExpectedOutput()
{
// Arrange
var expectedTagName = "not-a";
var metadataProvider = new TestModelMetadataProvider();
var tagHelperContext = new TagHelperContext(
allAttributes: new TagHelperAttributeList
{
{ "id", "myanchor" },
{ "asp-route-name", "value" },
{ "asp-action", "index" },
{ "asp-controller", "home" },
{ "asp-fragment", "hello=world" },
{ "asp-host", "contoso.com" },
{ "asp-protocol", "http" }
},
items: new Dictionary<object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
expectedTagName,
attributes: new TagHelperAttributeList
{
{ "id", "myanchor" },
},
getChildContentAsync: useCachedResult =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something Else");
return Task.FromResult<TagHelperContent>(tagHelperContent);
});
output.Content.SetContent("Something");
var urlHelper = new Mock<IUrlHelper>();
urlHelper
.Setup(mock => mock.Action(It.IsAny<UrlActionContext>())).Returns("home/index");
var htmlGenerator = new TestableHtmlGenerator(metadataProvider, urlHelper.Object);
var viewContext = TestableHtmlGenerator.GetViewContext(model: null,
htmlGenerator: htmlGenerator,
metadataProvider: metadataProvider);
var anchorTagHelper = new AnchorTagHelper(htmlGenerator)
{
Action = "index",
Controller = "home",
Fragment = "hello=world",
Host = "contoso.com",
Protocol = "http",
RouteValues =
{
{ "name", "value" },
},
};
// Act
await anchorTagHelper.ProcessAsync(tagHelperContext, output);
// Assert
Assert.Equal(2, output.Attributes.Count);
var attribute = Assert.Single(output.Attributes, attr => attr.Name.Equals("id"));
Assert.Equal("myanchor", attribute.Value);
attribute = Assert.Single(output.Attributes, attr => attr.Name.Equals("href"));
Assert.Equal("home/index", attribute.Value);
Assert.Equal("Something", output.Content.GetContent());
Assert.Equal(expectedTagName, output.TagName);
}
