// it used to be regarded as MS bug but it was not really.
public void TestPreserveEntityNotOnDotNet()
{
string intSubset = "<!ELEMENT root EMPTY><!ATTLIST root foo CDATA 'foo-def' bar CDATA 'bar-def'><!ENTITY ent 'entity string'>";
string dtd = "<!DOCTYPE root [" + intSubset + "]>";
string xml = dtd + "<root foo='&ent;' bar='internal &ent; value' />";
dvr = PrepareXmlReader(xml);
dvr.EntityHandling = EntityHandling.ExpandCharEntities;
dvr.Read(); // DTD
dvr.Read();
Assert.AreEqual(XmlNodeType.Element, dvr.NodeType);
Assert.AreEqual("root", dvr.Name);
Assert.IsTrue(dvr.MoveToFirstAttribute());
Assert.AreEqual("foo", dvr.Name);
Assert.AreEqual("entity string", dvr.Value);
// ReadAttributeValue()
Assert.IsTrue(dvr.ReadAttributeValue());
Assert.AreEqual(XmlNodeType.EntityReference, dvr.NodeType);
Assert.AreEqual("ent", dvr.Name);
Assert.AreEqual(String.Empty, dvr.Value);
Assert.IsTrue(!dvr.ReadAttributeValue());
// bar
Assert.IsTrue(dvr.MoveToNextAttribute());
Assert.AreEqual("bar", dvr.Name);
Assert.AreEqual("internal entity string value", dvr.Value);
// ReadAttributeValue()
Assert.IsTrue(dvr.ReadAttributeValue());
Assert.AreEqual(XmlNodeType.Text, dvr.NodeType);
Assert.AreEqual(String.Empty, dvr.Name);
Assert.AreEqual("internal ", dvr.Value);
Assert.IsTrue(dvr.ReadAttributeValue());
Assert.AreEqual(XmlNodeType.EntityReference, dvr.NodeType);
Assert.AreEqual("ent", dvr.Name);
Assert.AreEqual(String.Empty, dvr.Value);
Assert.IsTrue(dvr.ReadAttributeValue());
Assert.AreEqual(XmlNodeType.Text, dvr.NodeType);
Assert.AreEqual(String.Empty, dvr.Name);
Assert.AreEqual(" value", dvr.Value);
// ValidationType = None
dvr = PrepareXmlReader(xml);
dvr.EntityHandling = EntityHandling.ExpandCharEntities;
dvr.ValidationType = ValidationType.None;
dvr.Read(); // DTD
dvr.Read();
Assert.AreEqual(XmlNodeType.Element, dvr.NodeType);
Assert.AreEqual("root", dvr.Name);
// foo
Assert.IsTrue(dvr.MoveToFirstAttribute());
Assert.AreEqual("foo", dvr.Name);
Assert.AreEqual("entity string", dvr.Value);
// ReadAttributeValue()
Assert.IsTrue(dvr.ReadAttributeValue());
Assert.AreEqual(XmlNodeType.EntityReference, dvr.NodeType);
Assert.AreEqual("ent", dvr.Name);
Assert.AreEqual(String.Empty, dvr.Value);
Assert.IsTrue(!dvr.ReadAttributeValue());
// bar
Assert.IsTrue(dvr.MoveToNextAttribute());
Assert.AreEqual("bar", dvr.Name);
Assert.AreEqual("internal entity string value", dvr.Value);
// ReadAttributeValue()
Assert.IsTrue(dvr.ReadAttributeValue());
Assert.AreEqual(XmlNodeType.Text, dvr.NodeType);
Assert.AreEqual(String.Empty, dvr.Name);
Assert.AreEqual("internal ", dvr.Value);
Assert.IsTrue(dvr.ReadAttributeValue());
Assert.AreEqual(XmlNodeType.EntityReference, dvr.NodeType);
Assert.AreEqual("ent", dvr.Name);
Assert.AreEqual(String.Empty, dvr.Value);
Assert.IsTrue(dvr.ReadAttributeValue());
Assert.AreEqual(XmlNodeType.Text, dvr.NodeType);
Assert.AreEqual(String.Empty, dvr.Name);
Assert.AreEqual(" value", dvr.Value);
}