public void GetTagHelpersGivenParent_RestrictsTagHelpersBasedOnParent()
{
// Arrange
var expectedDescriptors = new[]
{
TagHelperDescriptorBuilder.Create("TestType", "TestAssembly")
.TagMatchingRuleDescriptor(
rule => rule
.RequireTagName("p")
.RequireParentTag("div"))
.Build()
};
var documentDescriptors = new[]
{
expectedDescriptors[0],
TagHelperDescriptorBuilder.Create("TestType2", "TestAssembly")
.TagMatchingRuleDescriptor(
rule => rule
.RequireTagName("strong")
.RequireParentTag("p"))
.Build()
};
var documentContext = TagHelperDocumentContext.Create(string.Empty, documentDescriptors);
var service = new DefaultTagHelperFactsService();
// Act
var descriptors = service.GetTagHelpersGivenParent(documentContext, "div");
// Assert
Assert.Equal(expectedDescriptors, descriptors, TagHelperDescriptorComparer.CaseSensitive);
}
public void GetTagHelpersGivenParent_AllowsRootParentTagForParentRestrictedTagHelperDescriptors()
{
// Arrange
var documentDescriptors = new[]
{
TagHelperDescriptorBuilder.Create("DivTagHelper", "TestAssembly")
.TagMatchingRuleDescriptor(rule => rule.RequireTagName("div"))
.Build(),
TagHelperDescriptorBuilder.Create("PTagHelper", "TestAssembly")
.TagMatchingRuleDescriptor(rule => rule
.RequireTagName("p")
.RequireParentTag("body"))
.Build()
};
var documentContext = TagHelperDocumentContext.Create(string.Empty, documentDescriptors);
var service = new DefaultTagHelperFactsService();
// Act
var descriptors = service.GetTagHelpersGivenParent(documentContext, parentTag: null /* root */);
// Assert
var descriptor = Assert.Single(descriptors);
Assert.Equal(documentDescriptors[0], descriptor, TagHelperDescriptorComparer.CaseSensitive);
}