public void TagHelpers_CanReplaceAttributeChunkGeneratorLogic()
{
// Arrange
var inputTypePropertyInfo = typeof(TestType).GetProperty("Type");
var checkedPropertyInfo = typeof(TestType).GetProperty("Checked");
var tagHelperDescriptors = new TagHelperDescriptor[]
{
new TagHelperDescriptor
{
TagName = "p",
TypeName = "PTagHelper",
AssemblyName = "SomeAssembly"
},
new TagHelperDescriptor
{
TagName = "input",
TypeName = "InputTagHelper",
AssemblyName = "SomeAssembly",
Attributes = new TagHelperAttributeDescriptor[]
{
new TagHelperAttributeDescriptor("type", inputTypePropertyInfo)
},
TagStructure = TagStructure.WithoutEndTag
},
new TagHelperDescriptor
{
TagName = "input",
TypeName = "InputTagHelper2",
AssemblyName = "SomeAssembly",
Attributes = new TagHelperAttributeDescriptor[]
{
new TagHelperAttributeDescriptor("type", inputTypePropertyInfo),
new TagHelperAttributeDescriptor("checked", checkedPropertyInfo)
}
}
};
// Act & Assert
RunTagHelperTest(testName: "BasicTagHelpers",
baseLineName: "BasicTagHelpers.CustomAttributeCodeGenerator",
tagHelperDescriptors: tagHelperDescriptors,
hostConfig: (host) =>
{
return new CodeGeneratorReplacingHost(host);
});
}
public void TagHelperDescriptor_CanBeSerialized()
{
// Arrange
var descriptor = new TagHelperDescriptor
{
Prefix = "prefix:",
TagName = "tag name",
TypeName = "type name",
AssemblyName = "assembly name",
RequiredAttributes = new[] { "required attribute one", "required attribute two" },
AllowedChildren = new[] { "allowed child one" },
RequiredParent = "parent name",
DesignTimeDescriptor = new TagHelperDesignTimeDescriptor
{
Summary = "usage summary",
Remarks = "usage remarks",
OutputElementHint = "some-tag"
},
};
var expectedSerializedDescriptor =
$"{{\"{ nameof(TagHelperDescriptor.Prefix) }\":\"prefix:\"," +
$"\"{ nameof(TagHelperDescriptor.TagName) }\":\"tag name\"," +
$"\"{ nameof(TagHelperDescriptor.FullTagName) }\":\"prefix:tag name\"," +
$"\"{ nameof(TagHelperDescriptor.TypeName) }\":\"type name\"," +
$"\"{ nameof(TagHelperDescriptor.AssemblyName) }\":\"assembly name\"," +
$"\"{ nameof(TagHelperDescriptor.Attributes) }\":[]," +
$"\"{ nameof(TagHelperDescriptor.RequiredAttributes) }\":" +
"[\"required attribute one\",\"required attribute two\"]," +
$"\"{ nameof(TagHelperDescriptor.AllowedChildren) }\":[\"allowed child one\"]," +
$"\"{ nameof(TagHelperDescriptor.RequiredParent) }\":\"parent name\"," +
$"\"{ nameof(TagHelperDescriptor.TagStructure) }\":0," +
$"\"{ nameof(TagHelperDescriptor.DesignTimeDescriptor) }\":{{"+
$"\"{ nameof(TagHelperDesignTimeDescriptor.Summary) }\":\"usage summary\"," +
$"\"{ nameof(TagHelperDesignTimeDescriptor.Remarks) }\":\"usage remarks\"," +
$"\"{ nameof(TagHelperDesignTimeDescriptor.OutputElementHint) }\":\"some-tag\"}}}}";
// Act
var serializedDescriptor = JsonConvert.SerializeObject(descriptor);
// Assert
Assert.Equal(expectedSerializedDescriptor, serializedDescriptor, StringComparer.Ordinal);
}
public void CreateDescriptor_OnlyAcceptsPropertiesWithGetAndSet()
{
// Arrange
var validProperty = typeof(MissingAccessorTagHelper).GetProperty(
nameof(MissingAccessorTagHelper.ValidAttribute));
var expectedDescriptor = new TagHelperDescriptor(
"missing-accessor",
typeof(MissingAccessorTagHelper).FullName,
AssemblyName,
new[] {
new TagHelperAttributeDescriptor("valid-attribute", validProperty)
});
// Act
var descriptors = TagHelperDescriptorFactory.CreateDescriptors(typeof(MissingAccessorTagHelper));
// Assert
var descriptor = Assert.Single(descriptors);
Assert.Equal(expectedDescriptor, descriptor, CompleteTagHelperDescriptorComparer.Default);
}
public void GetDescriptors_DuplicateDescriptorsAreNotPartOfTagHelperDescriptorPool()
{
// Arrange
var divDescriptor = TagHelperDescriptorBuilder.Create("foo1", "SomeAssembly")
.TagMatchingRuleDescriptor(rule => rule.RequireTagName("div"))
.Build();
var descriptors = new TagHelperDescriptor[] { divDescriptor, divDescriptor };
var tagHelperBinder = new TagHelperBinder(null, descriptors);
// Act
var bindingResult = tagHelperBinder.GetBinding(
tagName: "div",
attributes: Array.Empty <KeyValuePair <string, string> >(),
parentTagName: "p",
parentIsTagHelper: false);
// Assert
var descriptor = Assert.Single(bindingResult.Descriptors);
Assert.Same(divDescriptor, descriptor);
}
public void CreateDescriptor_DoesntResolveInheritedTagNames()
{
// Arrange
var validProp = typeof(InheritedMultiTagTagHelper).GetProperty(nameof(InheritedMultiTagTagHelper.ValidAttribute));
var expectedDescriptor = new TagHelperDescriptor(
"InheritedMultiTag",
typeof(InheritedMultiTagTagHelper).FullName,
AssemblyName,
ContentBehavior.None,
new[] {
new TagHelperAttributeDescriptor(nameof(InheritedMultiTagTagHelper.ValidAttribute), validProp)
});
// Act
var descriptors = TagHelperDescriptorFactory.CreateDescriptors(typeof(InheritedMultiTagTagHelper));
// Assert
var descriptor = Assert.Single(descriptors);
Assert.Equal(expectedDescriptor, descriptor, CompleteTagHelperDescriptorComparer.Default);
}
public void CreateDescriptor_BuildsDescriptorsWithInheritedProperties()
{
// Arrange
var intProperty = typeof(InheritedSingleAttributeTagHelper).GetProperty(
nameof(InheritedSingleAttributeTagHelper.IntAttribute));
var expectedDescriptor = new TagHelperDescriptor(
"inherited-single-attribute",
typeof(InheritedSingleAttributeTagHelper).FullName,
AssemblyName,
new[] {
new TagHelperAttributeDescriptor("int-attribute", intProperty)
});
// Act
var descriptors = TagHelperDescriptorFactory.CreateDescriptors(typeof(InheritedSingleAttributeTagHelper));
// Assert
var descriptor = Assert.Single(descriptors);
Assert.Equal(expectedDescriptor, descriptor, CompleteTagHelperDescriptorComparer.Default);
}
public void CreateDescriptor_BuildsDescriptorsWithConventionNames()
{
// Arrange
var intProperty = typeof(SingleAttributeTagHelper).GetProperty(nameof(SingleAttributeTagHelper.IntAttribute));
var expectedDescriptor = new TagHelperDescriptor(
"SingleAttribute",
typeof(SingleAttributeTagHelper).FullName,
AssemblyName,
ContentBehavior.None,
new[] {
new TagHelperAttributeDescriptor(nameof(SingleAttributeTagHelper.IntAttribute), intProperty)
});
// Act
var descriptors = TagHelperDescriptorFactory.CreateDescriptors(typeof(SingleAttributeTagHelper));
// Assert
var descriptor = Assert.Single(descriptors);
Assert.Equal(expectedDescriptor, descriptor, CompleteTagHelperDescriptorComparer.Default);
}
public async Task EnqueuePublish_OnProjectBeforeTagHelperProcessed_DoesNotPublish()
{
// Arrange
var serializationSuccessful = false;
var firstSnapshot = CreateProjectSnapshot("/path/to/project.csproj");
var tagHelpers = new TagHelperDescriptor[] {
new DefaultTagHelperDescriptor(FileKinds.Component, "Namespace.FileNameOther", "Assembly", "FileName", "FileName document", "FileName hint",
caseSensitive: false, tagMatchingRules: null, attributeDescriptors: null, allowedChildTags: null, metadata: null, diagnostics: null)
};
var secondSnapshot = CreateProjectSnapshot("/path/to/project.csproj", new ProjectWorkspaceState(tagHelpers, CodeAnalysis.CSharp.LanguageVersion.CSharp8), new string[] {
"FileName.razor"
});
var expectedConfigurationFilePath = "/path/to/obj/bin/Debug/project.razor.json";
var publisher = new TestDefaultRazorProjectChangePublisher(
ProjectConfigurationFilePathStore,
_razorLogger,
onSerializeToFile: (snapshot, configurationFilePath) =>
{
Assert.Same(secondSnapshot, snapshot);
Assert.Equal(expectedConfigurationFilePath, configurationFilePath);
serializationSuccessful = true;
},
useRealShouldSerialize: true)
{
EnqueueDelay = 10,
_active = true,
};
publisher.Initialize(ProjectSnapshotManager);
ProjectConfigurationFilePathStore.Set(firstSnapshot.FilePath, expectedConfigurationFilePath);
// Act
publisher.EnqueuePublish(secondSnapshot);
// Assert
var kvp = Assert.Single(publisher.DeferredPublishTasks);
await kvp.Value.ConfigureAwait(false);
Assert.False(serializationSuccessful);
}
public async Task ProjectManager_Changed_Remove_Change_NoopsOnDelayedPublish()
{
// Arrange
var serializationSuccessful = false;
var tagHelpers = new TagHelperDescriptor[] {
new DefaultTagHelperDescriptor(FileKinds.Component, "Namespace.FileNameOther", "Assembly", "FileName", "FileName document", "FileName hint",
caseSensitive: false, tagMatchingRules: null, attributeDescriptors: null, allowedChildTags: null, metadata: null, diagnostics: null)
};
var initialProjectSnapshot = CreateProjectSnapshot("/path/to/project.csproj", new ProjectWorkspaceState(tagHelpers, CodeAnalysis.CSharp.LanguageVersion.Preview));
var expectedProjectSnapshot = CreateProjectSnapshot("/path/to/project.csproj", new ProjectWorkspaceState(ImmutableArray <TagHelperDescriptor> .Empty, CodeAnalysis.CSharp.LanguageVersion.Preview));
var expectedConfigurationFilePath = "/path/to/obj/bin/Debug/project.razor.json";
var publisher = new TestDefaultRazorProjectChangePublisher(
ProjectConfigurationFilePathStore,
_razorLogger,
onSerializeToFile: (snapshot, configurationFilePath) =>
{
Assert.Same(expectedProjectSnapshot, snapshot);
Assert.Equal(expectedConfigurationFilePath, configurationFilePath);
serializationSuccessful = true;
})
{
EnqueueDelay = 10,
_active = true,
};
publisher.Initialize(ProjectSnapshotManager);
ProjectConfigurationFilePathStore.Set(expectedProjectSnapshot.FilePath, expectedConfigurationFilePath);
var documentRemovedArgs = ProjectChangeEventArgs.CreateTestInstance(initialProjectSnapshot, initialProjectSnapshot, documentFilePath: "/path/to/file.razor", ProjectChangeKind.DocumentRemoved);
var projectChangedArgs = ProjectChangeEventArgs.CreateTestInstance(initialProjectSnapshot, expectedProjectSnapshot, documentFilePath: null, ProjectChangeKind.ProjectChanged);
// Act
publisher.ProjectSnapshotManager_Changed(null, documentRemovedArgs);
publisher.ProjectSnapshotManager_Changed(null, projectChangedArgs);
// Assert
var stalePublishTask = Assert.Single(publisher.DeferredPublishTasks);
await stalePublishTask.Value.ConfigureAwait(false);
Assert.True(serializationSuccessful);
}
public void DescriptorResolver_ResolvesMultipleTypes()
{
// Arrange
var resolver = new TestTagHelperDescriptorResolver(
new LookupBasedTagHelperTypeResolver(
new Dictionary <string, IEnumerable <Type> >(StringComparer.OrdinalIgnoreCase)
{
{ AssemblyName, new Type[] { Valid_PlainTagHelperType, Valid_InheritedTagHelperType } },
}));
var expectedDescriptors = new TagHelperDescriptor[]
{
Valid_PlainTagHelperDescriptor,
Valid_InheritedTagHelperDescriptor
};
// Act
var descriptors = resolver.Resolve(AssemblyName).ToArray();
// Assert
Assert.Equal(descriptors.Length, 2);
Assert.Equal(expectedDescriptors, descriptors, CompleteTagHelperDescriptorComparer.Default);
}
public void GetDescriptors_ReturnsNothingForUnregisteredTags()
{
// Arrange
var divDescriptor = TagHelperDescriptorBuilder.Create("foo1", "SomeAssembly")
.TagMatchingRuleDescriptor(rule => rule.RequireTagName("div"))
.Build();
var spanDescriptor = TagHelperDescriptorBuilder.Create("foo2", "SomeAssembly")
.TagMatchingRuleDescriptor(rule => rule.RequireTagName("span"))
.Build();
var descriptors = new TagHelperDescriptor[] { divDescriptor, spanDescriptor };
var tagHelperBinder = new TagHelperBinder(null, descriptors);
// Act
var tagHelperBinding = tagHelperBinder.GetBinding(
tagName: "foo",
attributes: Array.Empty <KeyValuePair <string, string> >(),
parentTagName: "p",
parentIsTagHelper: false);
// Assert
Assert.Null(tagHelperBinding);
}
private void Register(TagHelperDescriptor descriptor)
{
var count = descriptor.TagMatchingRules.Count;
for (var i = 0; i < count; i++)
{
var rule = descriptor.TagMatchingRules[i];
var registrationKey =
string.Equals(rule.TagName, TagHelperMatchingConventions.ElementCatchAllName, StringComparison.Ordinal) ?
TagHelperMatchingConventions.ElementCatchAllName :
_tagHelperPrefix + rule.TagName;
// Ensure there's a HashSet to add the descriptor to.
if (!_registrations.TryGetValue(registrationKey, out HashSet <TagHelperDescriptor> descriptorSet))
{
descriptorSet = new HashSet <TagHelperDescriptor>(TagHelperDescriptorComparer.Default);
_registrations[registrationKey] = descriptorSet;
}
descriptorSet.Add(descriptor);
}
}
public void CreateDescriptor_OnlyAcceptsPropertiesWithPublicGetAndSet()
{
// Arrange
var validProperty = typeof(PrivateAccessorTagHelper).GetProperty(
nameof(PrivateAccessorTagHelper.ValidAttribute));
var expectedDescriptor = new TagHelperDescriptor(
"PrivateAccessor",
typeof(PrivateAccessorTagHelper).FullName,
ContentBehavior.None,
new[] {
new TagHelperAttributeDescriptor(
nameof(PrivateAccessorTagHelper.ValidAttribute), validProperty)
});
// Act
var descriptors = TagHelperDescriptorFactory.CreateDescriptors(typeof(PrivateAccessorTagHelper));
// Assert
var descriptor = Assert.Single(descriptors);
Assert.Equal(expectedDescriptor, descriptor, CompleteTagHelperDescriptorComparer.Default);
}
public override int GetHashCode(TagHelperDescriptor descriptor)
{
var hashCodeCombiner = HashCodeCombiner.Start();
hashCodeCombiner.Add(base.GetHashCode(descriptor));
hashCodeCombiner.Add(descriptor.TagName, StringComparer.Ordinal);
hashCodeCombiner.Add(descriptor.Prefix, StringComparer.Ordinal);
if (descriptor.DesignTimeDescriptor != null)
{
hashCodeCombiner.Add(
TagHelperDesignTimeDescriptorComparer.Default.GetHashCode(descriptor.DesignTimeDescriptor));
}
foreach (var requiredAttribute in descriptor.RequiredAttributes.OrderBy(attribute => attribute.Name))
{
hashCodeCombiner.Add(
CaseSensitiveTagHelperRequiredAttributeDescriptorComparer.Default.GetHashCode(requiredAttribute));
}
if (descriptor.AllowedChildren != null)
{
foreach (var child in descriptor.AllowedChildren.OrderBy(child => child))
{
hashCodeCombiner.Add(child, StringComparer.Ordinal);
}
}
var orderedAttributeHashCodes = descriptor.Attributes
.Select(attribute => TagHelperAttributeDescriptorComparer.Default.GetHashCode(attribute))
.OrderBy(hashcode => hashcode);
foreach (var attributeHashCode in orderedAttributeHashCodes)
{
hashCodeCombiner.Add(attributeHashCode);
}
return(hashCodeCombiner.CombinedHash);
}
private static bool MatchesLookupInfo(TagHelperDescriptor descriptor, LookupInfo lookupInfo)
{
if (!string.Equals(descriptor.AssemblyName, lookupInfo.AssemblyName, StringComparison.Ordinal))
{
return(false);
}
if (lookupInfo.TypePattern.EndsWith("*", StringComparison.Ordinal))
{
if (lookupInfo.TypePattern.Length == 1)
{
// TypePattern is "*".
return(true);
}
var lookupTypeName = lookupInfo.TypePattern.Substring(0, lookupInfo.TypePattern.Length - 1);
return(descriptor.TypeName.StartsWith(lookupTypeName, StringComparison.Ordinal));
}
return(string.Equals(descriptor.TypeName, lookupInfo.TypePattern, StringComparison.Ordinal));
}
public void DescriptorResolver_ResolvesOnlyTypeResolverProvidedTypes()
{
// Arrange
var resolver = new TagHelperDescriptorResolver(
new LookupBasedTagHelperTypeResolver(
new Dictionary <string, IEnumerable <Type> >(StringComparer.OrdinalIgnoreCase)
{
{ "lookupText1", ValidTestableTagHelpers },
{ "lookupText2", new Type[] { typeof(Valid_PlainTagHelper) } }
}));
var expectedDescriptor = new TagHelperDescriptor("Valid_Plain",
typeof(Valid_PlainTagHelper).FullName,
ContentBehavior.None);
// Act
var descriptors = resolver.Resolve("lookupText2");
// Assert
var descriptor = Assert.Single(descriptors);
Assert.Equal(descriptor, expectedDescriptor, CompleteTagHelperDescriptorComparer.Default);
}
public void GetDescriptors_ReturnsCatchAllsWithEveryTagName()
{
// Arrange
var divDescriptor = TagHelperDescriptorBuilder.Create("foo1", "SomeAssembly")
.TagMatchingRuleDescriptor(rule => rule.RequireTagName("div"))
.Build();
var spanDescriptor = TagHelperDescriptorBuilder.Create("foo2", "SomeAssembly")
.TagMatchingRuleDescriptor(rule => rule.RequireTagName("span"))
.Build();
var catchAllDescriptor = TagHelperDescriptorBuilder.Create("foo3", "SomeAssembly")
.TagMatchingRuleDescriptor(rule => rule.RequireTagName(TagHelperMatchingConventions.ElementCatchAllName))
.Build();
var descriptors = new TagHelperDescriptor[] { divDescriptor, spanDescriptor, catchAllDescriptor };
var tagHelperBinder = new TagHelperBinder(null, descriptors);
// Act
var divBinding = tagHelperBinder.GetBinding(
tagName: "div",
attributes: Array.Empty <KeyValuePair <string, string> >(),
parentTagName: "p",
parentIsTagHelper: false);
var spanBinding = tagHelperBinder.GetBinding(
tagName: "span",
attributes: Array.Empty <KeyValuePair <string, string> >(),
parentTagName: "p",
parentIsTagHelper: false);
// Assert
// For divs
Assert.Equal(2, divBinding.Descriptors.Count());
Assert.Contains(divDescriptor, divBinding.Descriptors);
Assert.Contains(catchAllDescriptor, divBinding.Descriptors);
// For spans
Assert.Equal(2, spanBinding.Descriptors.Count());
Assert.Contains(spanDescriptor, spanBinding.Descriptors);
Assert.Contains(catchAllDescriptor, spanBinding.Descriptors);
}
public TagHelperDescriptor GetTagHelperDescriptorOne()
{
var descriptor = new TagHelperDescriptor
{
TagName = "vc:one",
TypeName = "__Generated__OneViewComponentTagHelper",
AssemblyName = "Microsoft.AspNetCore.Mvc.Razor",
Attributes = new List <TagHelperAttributeDescriptor>
{
new TagHelperAttributeDescriptor
{
Name = "foo",
PropertyName = "foo",
TypeName = typeof(string).FullName
},
new TagHelperAttributeDescriptor
{
Name = "bar",
PropertyName = "bar",
TypeName = typeof(string).FullName
}
},
RequiredAttributes = new List <TagHelperRequiredAttributeDescriptor>
{
new TagHelperRequiredAttributeDescriptor
{
Name = "foo"
},
new TagHelperRequiredAttributeDescriptor
{
Name = "bar"
}
}
};
descriptor.PropertyBag.Add(ViewComponentTagHelperDescriptorConventions.ViewComponentNameKey, "One");
return(descriptor);
}
public void DescriptorResolver_IgnoresSpaces(string lookupText)
{
// Arrange
var tagHelperTypeResolver = new TestTagHelperTypeResolver(TestableTagHelpers)
{
OnGetLibraryDefinedTypes = (assemblyName) =>
{
Assert.Equal("MyAssembly", assemblyName.Name);
}
};
var tagHelperDescriptorResolver = new TagHelperDescriptorResolver(tagHelperTypeResolver);
var expectedDescriptor = new TagHelperDescriptor("Valid_Plain",
typeof(Valid_PlainTagHelper).FullName,
ContentBehavior.None);
// Act
var descriptors = tagHelperDescriptorResolver.Resolve(lookupText);
// Assert
var descriptor = Assert.Single(descriptors);
Assert.Equal(expectedDescriptor, descriptor, CompleteTagHelperDescriptorComparer.Default);
}
public override bool Equals(TagHelperDescriptor descriptorX, TagHelperDescriptor descriptorY)
{
if (descriptorX == descriptorY)
{
return(true);
}
return(base.Equals(descriptorX, descriptorY) &&
// Normal comparer doesn't care about the case, required attribute order, attributes or prefixes.
// In tests we do.
string.Equals(descriptorX.TagName, descriptorY.TagName, StringComparison.Ordinal) &&
string.Equals(descriptorX.Prefix, descriptorY.Prefix, StringComparison.Ordinal) &&
Enumerable.SequenceEqual(
descriptorX.RequiredAttributes,
descriptorY.RequiredAttributes,
StringComparer.Ordinal) &&
descriptorX.Attributes.SequenceEqual(
descriptorY.Attributes,
TagHelperAttributeDescriptorComparer.Default) &&
TagHelperDesignTimeDescriptorComparer.Default.Equals(
descriptorX.DesignTimeDescriptor,
descriptorY.DesignTimeDescriptor));
}
private static void ValidateBinding(
TagHelperBinding bindingResult,
string tagName,
Block tagBlock,
ErrorSink errorSink)
{
// Ensure that all descriptors associated with this tag have appropriate TagStructures. Cannot have
// multiple descriptors that expect different TagStructures (other than TagStructure.Unspecified).
TagHelperDescriptor baseDescriptor = null;
TagStructure? baseStructure = null;
foreach (var descriptor in bindingResult.Descriptors)
{
var boundRules = bindingResult.GetBoundRules(descriptor);
foreach (var rule in boundRules)
{
if (rule.TagStructure != TagStructure.Unspecified)
{
// Can't have a set of TagHelpers that expect different structures.
if (baseStructure.HasValue && baseStructure != rule.TagStructure)
{
errorSink.OnError(
tagBlock.Start,
LegacyResources.FormatTagHelperParseTreeRewriter_InconsistentTagStructure(
baseDescriptor.DisplayName,
descriptor.DisplayName,
tagName,
nameof(TagMatchingRuleDescriptor.TagStructure)),
tagBlock.Length);
}
baseDescriptor = descriptor;
baseStructure = rule.TagStructure;
}
}
}
}
private void RewriteUsage(TagHelperIntermediateNode node, TagHelperDescriptor tagHelper)
{
// We need to surround the contents of the node with open and close nodes to ensure the component
// is scoped correctly.
node.Children.Insert(0, new ComponentOpenExtensionNode()
{
TypeName = tagHelper.GetTypeName(),
});
for (var i = node.Children.Count - 1; i >= 0; i--)
{
if (node.Children[i] is TagHelperBodyIntermediateNode bodyNode)
{
// Replace with a node that we recognize so that it we can do proper scope tracking.
//
// Note that we force the body node to be last, this is done to push it after the
// attribute nodes. This gives us the ordering we want for the render tree.
node.Children.RemoveAt(i);
node.Children.Add(new ComponentBodyExtensionNode(bodyNode)
{
TagMode = node.TagMode,
TagName = node.TagName,
});
}
}
node.Children.Add(new ComponentCloseExtensionNode());
// Now we need to rewrite any set property or HTML nodes to call the appropriate AddAttribute api.
for (var i = node.Children.Count - 1; i >= 0; i--)
{
if (node.Children[i] is TagHelperPropertyIntermediateNode propertyNode &&
propertyNode.TagHelper == tagHelper)
{
node.Children[i] = new ComponentAttributeExtensionNode(propertyNode);
}
public void TagHelperDescriptorProvider_GetTagHelpersReturnsCatchAllsWithEveryTagName()
{
// Arrange
var divDescriptor = new TagHelperDescriptor("div", "foo1", "SomeAssembly", ContentBehavior.None);
var spanDescriptor = new TagHelperDescriptor("span", "foo2", "SomeAssembly", ContentBehavior.None);
var catchAllDescriptor = new TagHelperDescriptor("*", "foo3", "SomeAssembly", ContentBehavior.None);
var descriptors = new TagHelperDescriptor[] { divDescriptor, spanDescriptor, catchAllDescriptor };
var provider = new TagHelperDescriptorProvider(descriptors);
// Act
var divDescriptors = provider.GetTagHelpers("div");
var spanDescriptors = provider.GetTagHelpers("span");
// Assert
// For divs
Assert.Equal(2, divDescriptors.Count());
Assert.Contains(divDescriptor, divDescriptors);
Assert.Contains(catchAllDescriptor, divDescriptors);
// For spans
Assert.Equal(2, spanDescriptors.Count());
Assert.Contains(spanDescriptor, spanDescriptors);
Assert.Contains(catchAllDescriptor, spanDescriptors);
}
public void Rewrite_AllowsCompatibleTagStructures(
string documentContent,
TagStructure structure1,
TagStructure structure2,
MarkupBlock expectedOutput)
{
// Arrange
var factory = CreateDefaultSpanFactory();
var blockFactory = new BlockFactory(factory);
var descriptors = new TagHelperDescriptor[]
{
new TagHelperDescriptor
{
TagName = "input",
TypeName = "InputTagHelper1",
AssemblyName = "SomeAssembly",
TagStructure = structure1
},
new TagHelperDescriptor
{
TagName = "input",
TypeName = "InputTagHelper2",
AssemblyName = "SomeAssembly",
TagStructure = structure2
}
};
var descriptorProvider = new TagHelperDescriptorProvider(descriptors);
// Act & Assert
EvaluateData(descriptorProvider, documentContent, expectedOutput, expectedErrors: new RazorError[0]);
}
public void Rewrite_CreatesErrorForWithoutEndTagTagStructureForEndTags()
{
// Arrange
var factory = CreateDefaultSpanFactory();
var blockFactory = new BlockFactory(factory);
var expectedError = new RazorError(
RazorResources.FormatTagHelperParseTreeRewriter_EndTagTagHelperMustNotHaveAnEndTag(
"input",
"InputTagHelper",
TagStructure.WithoutEndTag),
absoluteIndex: 2,
lineIndex: 0,
columnIndex: 2,
length: 5);
var documentContent = "</input>";
var expectedOutput = new MarkupBlock(blockFactory.MarkupTagBlock("</input>"));
var descriptors = new TagHelperDescriptor[]
{
new TagHelperDescriptor
{
TagName = "input",
TypeName = "InputTagHelper",
AssemblyName = "SomeAssembly",
TagStructure = TagStructure.WithoutEndTag
}
};
var descriptorProvider = new TagHelperDescriptorProvider(descriptors);
// Act & Assert
EvaluateData(descriptorProvider, documentContent, expectedOutput, expectedErrors: new[] { expectedError });
}
public void Rewrite_CanHandleStartTagOnlyTagTagMode()
{
// Arrange
var documentContent = "<input>";
var expectedOutput = new MarkupBlock(new MarkupTagHelperBlock("input", TagMode.StartTagOnly));
var descriptors = new TagHelperDescriptor[]
{
new TagHelperDescriptor
{
TagName = "input",
TypeName = "InputTagHelper",
AssemblyName = "SomeAssembly",
TagStructure = TagStructure.WithoutEndTag
}
};
var descriptorProvider = new TagHelperDescriptorProvider(descriptors);
// Act & Assert
EvaluateData(descriptorProvider, documentContent, expectedOutput, expectedErrors: new RazorError[0]);
}
public void DescriptorResolver_ResolvesMultipleTypes()
{
// Arrange
var resolver = new TestTagHelperDescriptorResolver(
new LookupBasedTagHelperTypeResolver(
new Dictionary<string, IEnumerable<Type>>(StringComparer.OrdinalIgnoreCase)
{
{ AssemblyName, new Type[]{ Valid_PlainTagHelperType, Valid_InheritedTagHelperType } },
}));
var expectedDescriptors = new TagHelperDescriptor[]
{
Valid_PlainTagHelperDescriptor,
Valid_InheritedTagHelperDescriptor
};
// Act
var descriptors = resolver.Resolve("*, " + AssemblyName).ToArray();
// Assert
Assert.Equal(descriptors.Length, 2);
Assert.Equal(expectedDescriptors, descriptors, CaseSensitiveTagHelperDescriptorComparer.Default);
}
public void GetDescriptors_ReturnsNothingForUnregisteredTags()
{
// Arrange
var divDescriptor = new TagHelperDescriptor
{
TagName = "div",
TypeName = "foo1",
AssemblyName = "SomeAssembly",
};
var spanDescriptor = new TagHelperDescriptor
{
TagName = "span",
TypeName = "foo2",
AssemblyName = "SomeAssembly",
};
var descriptors = new TagHelperDescriptor[] { divDescriptor, spanDescriptor };
var provider = new TagHelperDescriptorProvider(descriptors);
// Act
var retrievedDescriptors = provider.GetDescriptors(
tagName: "foo",
attributeNames: Enumerable.Empty<string>(),
parentTagName: "p");
// Assert
Assert.Empty(retrievedDescriptors);
}
public void GetDescriptors_DuplicateDescriptorsAreNotPartOfTagHelperDescriptorPool()
{
// Arrange
var divDescriptor = new TagHelperDescriptor
{
TagName = "div",
TypeName = "foo1",
AssemblyName = "SomeAssembly",
};
var descriptors = new TagHelperDescriptor[] { divDescriptor, divDescriptor };
var provider = new TagHelperDescriptorProvider(descriptors);
// Act
var retrievedDescriptors = provider.GetDescriptors(
tagName: "div",
attributeNames: Enumerable.Empty<string>(),
parentTagName: "p");
// Assert
var descriptor = Assert.Single(retrievedDescriptors);
Assert.Same(divDescriptor, descriptor);
}
public void TagHelperDescriptor_WithAttributes_CanBeDeserialized()
{
// Arrange
var serializedDescriptor =
$"{{\"{ nameof(TagHelperDescriptor.Prefix) }\":\"prefix:\"," +
$"\"{ nameof(TagHelperDescriptor.TagName) }\":\"tag name\"," +
$"\"{ nameof(TagHelperDescriptor.FullTagName) }\":\"prefix:tag name\"," +
$"\"{ nameof(TagHelperDescriptor.TypeName) }\":\"type name\"," +
$"\"{ nameof(TagHelperDescriptor.AssemblyName) }\":\"assembly name\"," +
$"\"{ nameof(TagHelperDescriptor.Attributes) }\":[" +
$"{{\"{ nameof(TagHelperAttributeDescriptor.IsIndexer) }\":false," +
$"\"{ nameof(TagHelperAttributeDescriptor.IsStringProperty) }\":false," +
$"\"{ nameof(TagHelperAttributeDescriptor.Name) }\":\"attribute one\"," +
$"\"{ nameof(TagHelperAttributeDescriptor.PropertyName) }\":\"property name\"," +
$"\"{ nameof(TagHelperAttributeDescriptor.TypeName) }\":\"property type name\"," +
$"\"{ nameof(TagHelperAttributeDescriptor.DesignTimeDescriptor) }\":null}}," +
$"{{\"{ nameof(TagHelperAttributeDescriptor.IsIndexer) }\":false," +
$"\"{ nameof(TagHelperAttributeDescriptor.IsStringProperty) }\":true," +
$"\"{ nameof(TagHelperAttributeDescriptor.Name) }\":\"attribute two\"," +
$"\"{ nameof(TagHelperAttributeDescriptor.PropertyName) }\":\"property name\"," +
$"\"{ nameof(TagHelperAttributeDescriptor.TypeName) }\":\"{ typeof(string).FullName }\"," +
$"\"{ nameof(TagHelperAttributeDescriptor.DesignTimeDescriptor) }\":null}}]," +
$"\"{ nameof(TagHelperDescriptor.RequiredAttributes) }\":[]," +
$"\"{ nameof(TagHelperDescriptor.AllowedChildren) }\":null," +
$"\"{ nameof(TagHelperDescriptor.RequiredParent) }\":null," +
$"\"{nameof(TagHelperDescriptor.TagStructure)}\":0," +
$"\"{ nameof(TagHelperDescriptor.DesignTimeDescriptor) }\":null}}";
var expectedDescriptor = new TagHelperDescriptor
{
Prefix = "prefix:",
TagName = "tag name",
TypeName = "type name",
AssemblyName = "assembly name",
Attributes = new[]
{
new TagHelperAttributeDescriptor
{
Name = "attribute one",
PropertyName = "property name",
TypeName = "property type name"
},
new TagHelperAttributeDescriptor
{
Name = "attribute two",
PropertyName = "property name",
TypeName = typeof(string).FullName,
IsStringProperty = true
},
},
AllowedChildren = new[] { "allowed child one", "allowed child two" }
};
// Act
var descriptor = JsonConvert.DeserializeObject<TagHelperDescriptor>(serializedDescriptor);
// Assert
Assert.NotNull(descriptor);
Assert.Equal(expectedDescriptor.Prefix, descriptor.Prefix, StringComparer.Ordinal);
Assert.Equal(expectedDescriptor.TagName, descriptor.TagName, StringComparer.Ordinal);
Assert.Equal(expectedDescriptor.FullTagName, descriptor.FullTagName, StringComparer.Ordinal);
Assert.Equal(expectedDescriptor.TypeName, descriptor.TypeName, StringComparer.Ordinal);
Assert.Equal(expectedDescriptor.AssemblyName, descriptor.AssemblyName, StringComparer.Ordinal);
Assert.Equal(expectedDescriptor.Attributes, descriptor.Attributes, TagHelperAttributeDescriptorComparer.Default);
Assert.Empty(descriptor.RequiredAttributes);
}
public void Rewrite_UnderstandsNullTagNameWithAllowedChildrenForCatchAllWithPrefix()
{
// Arrange
var documentContent = "<th:p></</th:p>";
var descriptors = new TagHelperDescriptor[]
{
new TagHelperDescriptor
{
TagName = "p",
TypeName = "PTagHelper",
AssemblyName = "SomeAssembly",
AllowedChildren = new[] { "custom" },
Prefix = "th:",
},
new TagHelperDescriptor
{
TagName = "*",
TypeName = "CatchAllTagHelper",
AssemblyName = "SomeAssembly",
Prefix = "th:",
}
};
var expectedOutput = new MarkupBlock(
new MarkupTagHelperBlock("th:p",
BlockFactory.MarkupTagBlock("</")));
var descriptorProvider = new TagHelperDescriptorProvider(descriptors);
var expectedErrors = new[]
{
new RazorError(
RazorResources.FormatTagHelperParseTreeRewriter_CannotHaveNonTagContent("th:p", "custom"),
absoluteIndex: 6,
lineIndex: 0,
columnIndex: 6,
length: 2)
};
// Act & Assert
EvaluateData(descriptorProvider, documentContent, expectedOutput, expectedErrors);
}
public static bool IsAttributeDescriptor(this TagHelperDescriptor d)
{
return(d.Metadata.TryGetValue(TagHelperMetadata.Common.ClassifyAttributesOnly, out var value) ||
string.Equals(value, bool.TrueString, StringComparison.OrdinalIgnoreCase));
}
internal static bool TryGetDescriptor(int hashCode, out TagHelperDescriptor descriptor) => CachedTagHelperDescriptors.TryGetValue(hashCode, out descriptor);
public string GetFieldName(TagHelperDescriptor taghelper)
{
return(_tagHelpers[taghelper].fieldName);
}
public void Rewrite_CanHandleMultipleTagHelpersWithAllowedChildren()
{
// Arrange
var factory = CreateDefaultSpanFactory();
var documentContent = "<p><strong>Hello World</strong><br></p>";
var expectedOutput = new MarkupBlock(
new MarkupTagHelperBlock("p",
new MarkupTagHelperBlock("strong",
factory.Markup("Hello World")),
new MarkupTagHelperBlock("br", TagMode.StartTagOnly)));
var descriptors = new TagHelperDescriptor[]
{
new TagHelperDescriptor
{
TagName = "p",
TypeName = "PTagHelper1",
AssemblyName = "SomeAssembly",
AllowedChildren = new[] { "strong" }
},
new TagHelperDescriptor
{
TagName = "p",
TypeName = "PTagHelper2",
AssemblyName = "SomeAssembly",
AllowedChildren = new[] { "br" }
},
new TagHelperDescriptor
{
TagName = "strong",
TypeName = "StrongTagHelper",
AssemblyName = "SomeAssembly"
},
new TagHelperDescriptor
{
TagName = "br",
TypeName = "BRTagHelper",
AssemblyName = "SomeAssembly",
TagStructure = TagStructure.WithoutEndTag
}
};
var descriptorProvider = new TagHelperDescriptorProvider(descriptors);
// Act & Assert
EvaluateData(descriptorProvider, documentContent, expectedOutput, expectedErrors: new RazorError[0]);
}
internal static string GetVariableName(TagHelperDescriptor descriptor)
{
return "__" + descriptor.TypeName.Replace('.', '_');
}
public void ProcessMessage_ResolveTagHelperDescriptors_ResolvesDesignTimeTagHelperDescriptors()
{
// Arrange
var expectedSourceLocation = new SourceLocation(absoluteIndex: 1, lineIndex: 2, characterIndex: 3);
var sourceLocationJson = JsonConvert.SerializeObject(expectedSourceLocation);
var messageData = new JObject
{
{ "AssemblyName", CustomTagHelperAssembly },
{ "SourceLocation", JObject.Parse(sourceLocationJson) }
};
var message = new JObject
{
{ "MessageType", RazorPluginMessageTypes.ResolveTagHelperDescriptors },
{ "Data", messageData },
};
ResolveTagHelperDescriptorsMessage responseMessage = null;
var messageBroker = new TestPluginMessageBroker(
data => responseMessage = (ResolveTagHelperDescriptorsMessage)data);
var assembly = new TestAssembly(typeof(DesignTimeTagHelper));
var assemblyNameLookups = new Dictionary<string, Assembly>
{
{ CustomTagHelperAssembly, assembly }
};
var assemblyLoadContext = new TestAssemblyLoadContext(assemblyNameLookups);
var plugin = new RazorPlugin(messageBroker);
var expectedDescriptor = new TagHelperDescriptor
{
Prefix = DefaultPrefix,
TagName = "design-time",
TypeName = typeof(DesignTimeTagHelper).FullName,
AssemblyName = typeof(DesignTimeTagHelper).Assembly.GetName().Name,
AllowedChildren = new[] { "br" },
TagStructure = TagStructure.NormalOrSelfClosing,
DesignTimeDescriptor = new TagHelperDesignTimeDescriptor
{
OutputElementHint = "strong"
}
};
// Act
var handled = plugin.ProcessMessage(message, assemblyLoadContext);
// Assert
Assert.NotNull(responseMessage);
Assert.Equal(
RazorPluginMessageTypes.ResolveTagHelperDescriptors,
responseMessage.MessageType,
StringComparer.Ordinal);
var responseData = responseMessage.Data;
Assert.Equal(CustomTagHelperAssembly, responseData.AssemblyName, StringComparer.Ordinal);
var actualDescriptor = Assert.Single(responseData.Descriptors);
Assert.Equal(expectedDescriptor, actualDescriptor, CaseSensitiveTagHelperDescriptorComparer.Default);
Assert.Empty(responseData.Errors);
Assert.True(handled);
}
public void Rewrite_UnderstandsMinimizedAttributes(
string documentContent,
MarkupBlock expectedOutput,
RazorError[] expectedErrors)
{
// Arrange
var descriptors = new TagHelperDescriptor[]
{
new TagHelperDescriptor
{
TagName = "input",
TypeName = "InputTagHelper1",
AssemblyName = "SomeAssembly",
Attributes = new[]
{
new TagHelperAttributeDescriptor
{
Name = "bound-required-string",
PropertyName = "BoundRequiredString",
TypeName = typeof(string).FullName,
IsStringProperty = true
}
},
RequiredAttributes = new[] { "unbound-required" }
},
new TagHelperDescriptor
{
TagName = "input",
TypeName = "InputTagHelper1",
AssemblyName = "SomeAssembly",
Attributes = new[]
{
new TagHelperAttributeDescriptor
{
Name = "bound-required-string",
PropertyName = "BoundRequiredString",
TypeName = typeof(string).FullName,
IsStringProperty = true
}
},
RequiredAttributes = new[] { "bound-required-string" }
},
new TagHelperDescriptor
{
TagName = "input",
TypeName = "InputTagHelper2",
AssemblyName = "SomeAssembly",
Attributes = new[]
{
new TagHelperAttributeDescriptor
{
Name = "bound-required-int",
PropertyName = "BoundRequiredInt",
TypeName = typeof(int).FullName
}
},
RequiredAttributes = new[] { "bound-required-int" }
},
new TagHelperDescriptor
{
TagName = "input",
TypeName = "InputTagHelper3",
AssemblyName = "SomeAssembly",
Attributes = new[]
{
new TagHelperAttributeDescriptor
{
Name = "int-dictionary",
PropertyName ="DictionaryOfIntProperty",
TypeName = typeof(IDictionary<string, int>).FullName
},
new TagHelperAttributeDescriptor
{
Name = "string-dictionary",
PropertyName = "DictionaryOfStringProperty",
TypeName = typeof(IDictionary<string, string>).FullName
},
new TagHelperAttributeDescriptor
{
Name = "int-prefix-",
PropertyName = "DictionaryOfIntProperty",
TypeName = typeof(int).FullName,
IsIndexer = true
},
new TagHelperAttributeDescriptor
{
Name = "string-prefix-",
PropertyName = "DictionaryOfStringProperty",
TypeName = typeof(string).FullName,
IsIndexer = true,
IsStringProperty = true
}
}
},
new TagHelperDescriptor
{
TagName = "p",
TypeName = "PTagHelper",
AssemblyName = "SomeAssembly",
Attributes = new[]
{
new TagHelperAttributeDescriptor
{
Name = "bound-string",
PropertyName = "BoundRequiredString",
TypeName = typeof(string).FullName,
IsStringProperty = true
},
new TagHelperAttributeDescriptor
{
Name = "bound-int",
PropertyName = "BoundRequiredString",
TypeName = typeof(int).FullName
}
}
}
};
var descriptorProvider = new TagHelperDescriptorProvider(descriptors);
// Act & Assert
EvaluateData(descriptorProvider, documentContent, expectedOutput, expectedErrors);
}
public void Rewrite_UnderstandsAllowedChildren(
string documentContent,
IEnumerable<string> allowedChildren,
MarkupBlock expectedOutput,
RazorError[] expectedErrors)
{
// Arrange
var descriptors = new TagHelperDescriptor[]
{
new TagHelperDescriptor
{
TagName = "p",
TypeName = "PTagHelper",
AssemblyName = "SomeAssembly",
AllowedChildren = allowedChildren
},
new TagHelperDescriptor
{
TagName = "strong",
TypeName = "StrongTagHelper",
AssemblyName = "SomeAssembly",
AllowedChildren = allowedChildren
},
new TagHelperDescriptor
{
TagName = "br",
TypeName = "BRTagHelper",
AssemblyName = "SomeAssembly",
TagStructure = TagStructure.WithoutEndTag
}
};
var descriptorProvider = new TagHelperDescriptorProvider(descriptors);
// Act & Assert
EvaluateData(descriptorProvider, documentContent, expectedOutput, expectedErrors);
}
public string GetClassName(TagHelperDescriptor taghelper)
{
return(_tagHelpers[taghelper].className);
}
public void TagHelperDescriptor_WithAttributes_CanBeSerialized()
{
// Arrange
var descriptor = new TagHelperDescriptor
{
Prefix = "prefix:",
TagName = "tag name",
TypeName = "type name",
AssemblyName = "assembly name",
Attributes = new[]
{
new TagHelperAttributeDescriptor
{
Name = "attribute one",
PropertyName = "property name",
TypeName = "property type name"
},
new TagHelperAttributeDescriptor
{
Name = "attribute two",
PropertyName = "property name",
TypeName = typeof(string).FullName,
IsStringProperty = true
},
},
TagStructure = TagStructure.NormalOrSelfClosing
};
var expectedSerializedDescriptor =
$"{{\"{ nameof(TagHelperDescriptor.Prefix) }\":\"prefix:\"," +
$"\"{ nameof(TagHelperDescriptor.TagName) }\":\"tag name\"," +
$"\"{ nameof(TagHelperDescriptor.FullTagName) }\":\"prefix:tag name\"," +
$"\"{ nameof(TagHelperDescriptor.TypeName) }\":\"type name\"," +
$"\"{ nameof(TagHelperDescriptor.AssemblyName) }\":\"assembly name\"," +
$"\"{ nameof(TagHelperDescriptor.Attributes) }\":[" +
$"{{\"{ nameof(TagHelperAttributeDescriptor.IsIndexer) }\":false," +
$"\"{ nameof(TagHelperAttributeDescriptor.IsStringProperty) }\":false," +
$"\"{ nameof(TagHelperAttributeDescriptor.Name) }\":\"attribute one\"," +
$"\"{ nameof(TagHelperAttributeDescriptor.PropertyName) }\":\"property name\"," +
$"\"{ nameof(TagHelperAttributeDescriptor.TypeName) }\":\"property type name\"," +
$"\"{ nameof(TagHelperAttributeDescriptor.DesignTimeDescriptor) }\":null}}," +
$"{{\"{ nameof(TagHelperAttributeDescriptor.IsIndexer) }\":false," +
$"\"{ nameof(TagHelperAttributeDescriptor.IsStringProperty) }\":true," +
$"\"{ nameof(TagHelperAttributeDescriptor.Name) }\":\"attribute two\"," +
$"\"{ nameof(TagHelperAttributeDescriptor.PropertyName) }\":\"property name\"," +
$"\"{ nameof(TagHelperAttributeDescriptor.TypeName) }\":\"{ typeof(string).FullName }\"," +
$"\"{ nameof(TagHelperAttributeDescriptor.DesignTimeDescriptor) }\":null}}]," +
$"\"{ nameof(TagHelperDescriptor.RequiredAttributes) }\":[]," +
$"\"{ nameof(TagHelperDescriptor.AllowedChildren) }\":null," +
$"\"{ nameof(TagHelperDescriptor.RequiredParent) }\":null," +
$"\"{ nameof(TagHelperDescriptor.TagStructure) }\":1," +
$"\"{ nameof(TagHelperDescriptor.DesignTimeDescriptor) }\":null}}";
// Act
var serializedDescriptor = JsonConvert.SerializeObject(descriptor);
// Assert
Assert.Equal(expectedSerializedDescriptor, serializedDescriptor, StringComparer.Ordinal);
}
public void Rewrite_UnderstandsNestedRequiredParent(string documentContent, MarkupBlock expectedOutput)
{
// Arrange
var descriptors = new TagHelperDescriptor[]
{
new TagHelperDescriptor
{
TagName = "strong",
TypeName = "StrongTagHelper",
AssemblyName = "SomeAssembly",
RequiredParent = "p",
},
new TagHelperDescriptor
{
TagName = "strong",
TypeName = "StrongTagHelper",
AssemblyName = "SomeAssembly",
RequiredParent = "div",
},
new TagHelperDescriptor
{
TagName = "p",
TypeName = "PTagHelper",
AssemblyName = "SomeAssembly"
}
};
var descriptorProvider = new TagHelperDescriptorProvider(descriptors);
// Act & Assert
EvaluateData(descriptorProvider, documentContent, expectedOutput, expectedErrors: new RazorError[0]);
}
public void GetDescriptors_ReturnsCatchAllsWithEveryTagName()
{
// Arrange
var divDescriptor = new TagHelperDescriptor
{
TagName = "div",
TypeName = "foo1",
AssemblyName = "SomeAssembly",
};
var spanDescriptor = new TagHelperDescriptor
{
TagName = "span",
TypeName = "foo2",
AssemblyName = "SomeAssembly",
};
var catchAllDescriptor = new TagHelperDescriptor
{
TagName = TagHelperDescriptorProvider.ElementCatchAllTarget,
TypeName = "foo3",
AssemblyName = "SomeAssembly",
};
var descriptors = new TagHelperDescriptor[] { divDescriptor, spanDescriptor, catchAllDescriptor };
var provider = new TagHelperDescriptorProvider(descriptors);
// Act
var divDescriptors = provider.GetDescriptors(
tagName: "div",
attributeNames: Enumerable.Empty<string>(),
parentTagName: "p");
var spanDescriptors = provider.GetDescriptors(
tagName: "span",
attributeNames: Enumerable.Empty<string>(),
parentTagName: "p");
// Assert
// For divs
Assert.Equal(2, divDescriptors.Count());
Assert.Contains(divDescriptor, divDescriptors);
Assert.Contains(catchAllDescriptor, divDescriptors);
// For spans
Assert.Equal(2, spanDescriptors.Count());
Assert.Contains(spanDescriptor, spanDescriptors);
Assert.Contains(catchAllDescriptor, spanDescriptors);
}
public void TagHelpers_WithinHelpersAndSections_GeneratesExpectedOutput()
{
// Arrange
var propertyInfo = typeof(TestType).GetProperty("BoundProperty");
var tagHelperDescriptors = new TagHelperDescriptor[]
{
new TagHelperDescriptor
{
TagName = "MyTagHelper",
TypeName = "MyTagHelper",
AssemblyName = "SomeAssembly",
Attributes = new []
{
new TagHelperAttributeDescriptor("BoundProperty", propertyInfo)
}
},
new TagHelperDescriptor
{
TagName = "NestedTagHelper",
TypeName = "NestedTagHelper",
AssemblyName = "SomeAssembly"
}
};
// Act & Assert
RunTagHelperTest("TagHelpersInSection", tagHelperDescriptors: tagHelperDescriptors);
}
public void Rewrite_RecoversWhenRequiredAttributeMismatchAndRestrictedChildren()
{
// Arrange
var factory = CreateDefaultSpanFactory();
var blockFactory = new BlockFactory(factory);
var documentContent = "<strong required><strong></strong></strong>";
var expectedErrors = new[] {
new RazorError(
RazorResources.FormatTagHelperParseTreeRewriter_InvalidNestedTag("strong", "strong", "br"),
absoluteIndex: 18,
lineIndex: 0,
columnIndex: 18,
length: 6)
};
var expectedOutput = new MarkupBlock(
new MarkupTagHelperBlock("strong",
new List<KeyValuePair<string, SyntaxTreeNode>>
{
new KeyValuePair<string, SyntaxTreeNode>("required", null)
},
blockFactory.MarkupTagBlock("<strong>"),
blockFactory.MarkupTagBlock("</strong>")));
var descriptors = new TagHelperDescriptor[]
{
new TagHelperDescriptor
{
TagName = "strong",
TypeName = "StrongTagHelper",
AssemblyName = "SomeAssembly",
RequiredAttributes = new[] { "required" },
AllowedChildren = new[] { "br" }
}
};
var descriptorProvider = new TagHelperDescriptorProvider(descriptors);
// Act & Assert
EvaluateData(descriptorProvider, documentContent, expectedOutput, expectedErrors);
}
public void Rewrite_UnderstandsTagHelperPrefixAndAllowedChildren()
{
// Arrange
var documentContent = "<th:p><th:strong></th:strong></th:p>";
var expectedOutput = new MarkupBlock(
new MarkupTagHelperBlock("th:p",
new MarkupTagHelperBlock("th:strong")));
var descriptors = new TagHelperDescriptor[]
{
new TagHelperDescriptor
{
TagName = "p",
TypeName = "PTagHelper",
AssemblyName = "SomeAssembly",
AllowedChildren = new[] { "strong" },
Prefix = "th:"
},
new TagHelperDescriptor
{
TagName = "strong",
TypeName = "StrongTagHelper",
AssemblyName = "SomeAssembly",
Prefix = "th:"
}
};
var descriptorProvider = new TagHelperDescriptorProvider(descriptors);
// Act & Assert
EvaluateData(
descriptorProvider,
documentContent,
expectedOutput,
expectedErrors: Enumerable.Empty<RazorError>());
}
public void TagHelperParseTreeRewriter_CreatesMarkupCodeSpansForNonStringTagHelperAttributes(
string documentContent,
MarkupBlock expectedOutput)
{
// Arrange
var descriptors = new TagHelperDescriptor[]
{
new TagHelperDescriptor
{
TagName = "person",
TypeName = "PersonTagHelper",
AssemblyName = "personAssembly",
Attributes = new[]
{
new TagHelperAttributeDescriptor
{
Name = "age",
PropertyName = "Age",
TypeName = typeof(int).FullName
},
new TagHelperAttributeDescriptor
{
Name = "birthday",
PropertyName = "BirthDay",
TypeName = typeof(DateTime).FullName
},
new TagHelperAttributeDescriptor
{
Name = "name",
PropertyName = "Name",
TypeName = typeof(string).FullName,
IsStringProperty = true
}
}
}
};
var providerContext = new TagHelperDescriptorProvider(descriptors);
// Act & Assert
EvaluateData(providerContext,
documentContent,
expectedOutput,
expectedErrors: Enumerable.Empty<RazorError>());
}
public void Rewrite_CreatesErrorForInconsistentTagStructures()
{
// Arrange
var factory = CreateDefaultSpanFactory();
var blockFactory = new BlockFactory(factory);
var expectedError = new RazorError(
RazorResources.FormatTagHelperParseTreeRewriter_InconsistentTagStructure(
"InputTagHelper1",
"InputTagHelper2",
"input",
nameof(TagHelperDescriptor.TagStructure)),
absoluteIndex: 0,
lineIndex: 0,
columnIndex: 0,
length: 7);
var documentContent = "<input>";
var expectedOutput = new MarkupBlock(new MarkupTagHelperBlock("input", TagMode.StartTagOnly));
var descriptors = new TagHelperDescriptor[]
{
new TagHelperDescriptor
{
TagName = "input",
TypeName = "InputTagHelper1",
AssemblyName = "SomeAssembly",
TagStructure = TagStructure.WithoutEndTag
},
new TagHelperDescriptor
{
TagName = "input",
TypeName = "InputTagHelper2",
AssemblyName = "SomeAssembly",
TagStructure = TagStructure.NormalOrSelfClosing
}
};
var descriptorProvider = new TagHelperDescriptorProvider(descriptors);
// Act & Assert
EvaluateData(descriptorProvider, documentContent, expectedOutput, expectedErrors: new[] { expectedError });
}
public void Rewrite_CanHandleInvalidChildrenWithWhitespace()
{
// Arrange
var factory = CreateDefaultSpanFactory();
var blockFactory = new BlockFactory(factory);
var documentContent = $"<p>{Environment.NewLine} <strong>{Environment.NewLine} Hello" +
$"{Environment.NewLine} </strong>{Environment.NewLine}</p>";
var newLineLength = Environment.NewLine.Length;
var expectedErrors = new[] {
new RazorError(
RazorResources.FormatTagHelperParseTreeRewriter_InvalidNestedTag("strong", "p", "br"),
absoluteIndex: 8 + newLineLength,
lineIndex: 1,
columnIndex: 5,
length: 6),
};
var expectedOutput = new MarkupBlock(
new MarkupTagHelperBlock("p",
factory.Markup(Environment.NewLine + " "),
blockFactory.MarkupTagBlock("<strong>"),
factory.Markup(Environment.NewLine + " Hello" + Environment.NewLine + " "),
blockFactory.MarkupTagBlock("</strong>"),
factory.Markup(Environment.NewLine)));
var descriptors = new TagHelperDescriptor[]
{
new TagHelperDescriptor
{
TagName = "p",
TypeName = "PTagHelper",
AssemblyName = "SomeAssembly",
AllowedChildren = new[] { "br" },
}
};
var descriptorProvider = new TagHelperDescriptorProvider(descriptors);
// Act & Assert
EvaluateData(descriptorProvider, documentContent, expectedOutput, expectedErrors);
}
public void Rewrite_CanHandleWithoutEndTagTagStructure(string documentContent, MarkupBlock expectedOutput)
{
// Arrange
var descriptors = new TagHelperDescriptor[]
{
new TagHelperDescriptor
{
TagName = "input",
TypeName = "InputTagHelper",
AssemblyName = "SomeAssembly",
TagStructure = TagStructure.WithoutEndTag,
}
};
var descriptorProvider = new TagHelperDescriptorProvider(descriptors);
// Act & Assert
EvaluateData(descriptorProvider, documentContent, expectedOutput, expectedErrors: new RazorError[0]);
}
internal static string GetVariableName(TagHelperDescriptor descriptor)
{
return("__" + descriptor.TypeName.Replace('.', '_'));
}
public void Rewrite_CreatesErrorForEmptyTagHelperBoundAttributes(
string documentContent,
MarkupBlock expectedOutput,
RazorError[] expectedErrors)
{
// Arrange
var descriptors = new TagHelperDescriptor[]
{
new TagHelperDescriptor
{
TagName = "myth",
TypeName = "mythTagHelper",
AssemblyName = "SomeAssembly",
Attributes = new[]
{
new TagHelperAttributeDescriptor
{
Name = "bound",
PropertyName = "Bound",
TypeName = typeof(bool).FullName
},
new TagHelperAttributeDescriptor
{
Name = "name",
PropertyName = "Name",
TypeName = typeof(string).FullName,
IsStringProperty = true
}
}
}
};
var descriptorProvider = new TagHelperDescriptorProvider(descriptors);
// Act & Assert
EvaluateData(descriptorProvider, documentContent, expectedOutput, expectedErrors);
}
public string GetFullyQualifiedName(TagHelperDescriptor taghelper)
{
return(_tagHelpers[taghelper].fullyQualifiedName);
}
public void Rewrite_RequiredAttributeDescriptorsCreateMalformedTagHelperBlocksCorrectly(
string documentContent,
MarkupBlock expectedOutput,
RazorError[] expectedErrors)
{
// Arrange
var descriptors = new TagHelperDescriptor[]
{
new TagHelperDescriptor
{
TagName = "p",
TypeName = "pTagHelper",
AssemblyName = "SomeAssembly",
RequiredAttributes = new[] { "class" }
}
};
var descriptorProvider = new TagHelperDescriptorProvider(descriptors);
// Act & Assert
EvaluateData(descriptorProvider, documentContent, expectedOutput, expectedErrors);
}
private static string GenerateFieldName(TagHelperDescriptor tagHelper)
{
return($"__{tagHelper.GetViewComponentName()}ViewComponentTagHelper");
}
public void TagHelperDescrictorsAreCompatibleWithPinnedVisualStudioVersion()
{
// Arrange
var runtimeDescriptor = new TagHelperDescriptor
{
AllowedChildren = new[] { "tr", "td" },
AssemblyName = "CustomAssembly",
Prefix = "th:",
RequiredAttributes = new[] { "runat" },
RequiredParent = "body",
TagName = "custom-table",
TagStructure = TagStructure.NormalOrSelfClosing,
TypeName = "Custom.Type.TableTagHelper",
DesignTimeDescriptor = new TagHelperDesignTimeDescriptor
{
OutputElementHint = "table",
Remarks = "Some tag level remarks.",
Summary = "Some tag level summary."
},
Attributes = new[]
{
new TagHelperAttributeDescriptor
{
IsIndexer = false,
IsStringProperty = true,
Name = "bind",
PropertyName = "Bind",
TypeName = "System.String",
DesignTimeDescriptor = new TagHelperAttributeDesignTimeDescriptor
{
Remarks = "Some attribute level remarks.",
Summary = "Some attribute level summary."
}
}
}
};
var expectedVSDescriptor = new VisualStudioTagHelperDescriptor
{
AllowedChildren = new[] { "tr", "td" },
AssemblyName = "CustomAssembly",
Prefix = "th:",
RequiredAttributes = new[] { "runat" },
RequiredParent = "body",
TagName = "custom-table",
TagStructure = VisualStudioTagStructure.NormalOrSelfClosing,
TypeName = "Custom.Type.TableTagHelper",
DesignTimeDescriptor = new VisualStudioTagHelperDesignTimeDescriptor
{
OutputElementHint = "table",
Remarks = "Some tag level remarks.",
Summary = "Some tag level summary."
},
Attributes = new[]
{
new VisualStudioTagHelperAttributeDescriptor
{
IsIndexer = false,
IsStringProperty = true,
Name = "bind",
PropertyName = "Bind",
TypeName = "System.String",
DesignTimeDescriptor = new VisualStudioTagHelperAttributeDesignTimeDescriptor
{
Remarks = "Some attribute level remarks.",
Summary = "Some attribute level summary."
}
}
}
};
var serializedRuntimeDescriptor = JsonConvert.SerializeObject(runtimeDescriptor);
// Act
var vsDescriptor =
JsonConvert.DeserializeObject<VisualStudioTagHelperDescriptor>(serializedRuntimeDescriptor);
// Assert
Assert.Equal(expectedVSDescriptor.AllowedChildren, vsDescriptor.AllowedChildren, StringComparer.Ordinal);
Assert.Equal(expectedVSDescriptor.AssemblyName, vsDescriptor.AssemblyName, StringComparer.Ordinal);
Assert.Equal(expectedVSDescriptor.Prefix, vsDescriptor.Prefix, StringComparer.Ordinal);
Assert.Equal(expectedVSDescriptor.RequiredAttributes, vsDescriptor.RequiredAttributes, StringComparer.Ordinal);
Assert.Equal(expectedVSDescriptor.RequiredParent, vsDescriptor.RequiredParent, StringComparer.Ordinal);
Assert.Equal(expectedVSDescriptor.TagName, vsDescriptor.TagName, StringComparer.Ordinal);
Assert.Equal(expectedVSDescriptor.TagStructure, vsDescriptor.TagStructure);
Assert.Equal(expectedVSDescriptor.TypeName, vsDescriptor.TypeName, StringComparer.Ordinal);
var dtDescriptor = vsDescriptor.DesignTimeDescriptor;
var expectedDTDescriptor = expectedVSDescriptor.DesignTimeDescriptor;
Assert.Equal(expectedDTDescriptor.OutputElementHint, dtDescriptor.OutputElementHint, StringComparer.Ordinal);
Assert.Equal(expectedDTDescriptor.Remarks, dtDescriptor.Remarks, StringComparer.Ordinal);
Assert.Equal(expectedDTDescriptor.Summary, dtDescriptor.Summary, StringComparer.Ordinal);
var attribute = Assert.Single(vsDescriptor.Attributes);
var expectedAttribute = Assert.Single(expectedVSDescriptor.Attributes);
Assert.Equal(attribute.IsIndexer, expectedAttribute.IsIndexer);
Assert.Equal(attribute.IsStringProperty, expectedAttribute.IsStringProperty);
Assert.Equal(attribute.Name, expectedAttribute.Name, StringComparer.Ordinal);
Assert.Equal(attribute.PropertyName, expectedAttribute.PropertyName, StringComparer.Ordinal);
Assert.Equal(attribute.TypeName, expectedAttribute.TypeName, StringComparer.Ordinal);
var dtAttribute = attribute.DesignTimeDescriptor;
var expectedDTAttribute = expectedAttribute.DesignTimeDescriptor;
Assert.Equal(dtAttribute.Remarks, expectedDTAttribute.Remarks, StringComparer.Ordinal);
Assert.Equal(dtAttribute.Summary, expectedDTAttribute.Summary, StringComparer.Ordinal);
}
internal static void Set(int hashCode, TagHelperDescriptor descriptor) => CachedTagHelperDescriptors.Set(hashCode, descriptor);
public void CreateDescriptors_UnderstandsEditorBrowsableAttribute(
Type tagHelperType,
bool designTime,
TagHelperDescriptor[] expectedDescriptors)
{
// Arrange
var errorSink = new ErrorSink();
var factory = new TagHelperDescriptorFactory(designTime);
// Act
var descriptors = factory.CreateDescriptors(
AssemblyName,
GetTypeInfo(tagHelperType),
errorSink);
// Assert
Assert.Empty(errorSink.Errors);
Assert.Equal(expectedDescriptors, descriptors, CaseSensitiveTagHelperDescriptorComparer.Default);
}
internal static bool TrySplitNamespaceAndType(TagHelperDescriptor tagHelperDescriptor, out StringSegment @namespace) => TrySplitNamespaceAndType(tagHelperDescriptor, out @namespace, out _);
public void CreateDescriptors_IsEnumIsSetCorrectly(
Type tagHelperType,
TagHelperDescriptor[] expectedDescriptors)
{
// Arrange
var errorSink = new ErrorSink();
var factory = new TagHelperDescriptorFactory(designTime: false);
// Act
var descriptors = factory.CreateDescriptors(
AssemblyName,
GetTypeInfo(tagHelperType),
errorSink: errorSink);
// Assert
Assert.Empty(errorSink.Errors);
// We don't care about order. Mono returns reflected attributes differently so we need to ensure order
// doesn't matter by sorting.
descriptors = descriptors.OrderBy(descriptor => descriptor.TagName);
Assert.Equal(expectedDescriptors, descriptors, CaseSensitiveTagHelperDescriptorComparer.Default);
}