private XDocument CopyAncestorsAndDescendantsOf(XDocument document, XElement element)
{
var xpath = new AbsoluteXPathWriter().Write(element);
var elementsToKeep = GetElementsToKeep(document, xpath);
var allElements = document.Root.DescendantsAndSelf().ToArray();
foreach(var copy in allElements)
{
if(!elementsToKeep.Contains(copy))
{
copy.Remove();
}
}
return document;
}
public void WriteOutputIsValid(string xml, string expectedXPath)
{
// Arrange
var includeAllAttributesExceptNamespaceDeclarations = Substitute.For<IAttributeFilter>();
includeAllAttributesExceptNamespaceDeclarations.IsIncluded(Arg.Any<XAttribute>()).Returns(info => !info.Arg<XAttribute>().IsNamespaceDeclaration);
var filters = new[] {includeAllAttributesExceptNamespaceDeclarations};
var testNode = xml.SelectSingleNode(expectedXPath);
// Act
var actualXPath = new AbsoluteXPathWriter(filters).Write(testNode);
// Assert
Assert.That(actualXPath, Is.EqualTo(expectedXPath));
}