I think, without question, that this is one of the most horrible nasty tests that I have seen. It has been ported as is from the java code, and you can literally feel the nastiness in reading it:

[Test]
public void IndexedEmbeddedAndCollections()
{
	Author a = new Author();
	a.Name = "Voltaire";
	Author a2 = new Author();
	a2.Name = "Victor Hugo";
	Author a3 = new Author();
	a3.Name = "Moliere";
	Author a4 = new Author();
	a4.Name = "Proust";

	Order o = new Order();
	o.OrderNumber = "ACVBNM";

	Order o2 = new Order();
	o2.OrderNumber = "ZERTYD";

	Product p1 = new Product();
	p1.Name = "Candide";
	p1.Authors.Add(a);
	p1.Authors.Add(a2); //be creative

	Product p2 = new Product();
	p2.Name = "Le malade imaginaire";
	p2.Authors.Add(a3);
	p2.Orders.Add("Emmanuel", o);
	p2.Orders.Add("Gavin", o2);


	ISession s = OpenSession();
	ITransaction tx = s.BeginTransaction();
	s.Persist(a);
	s.Persist(a2);
	s.Persist(a3);
	s.Persist(a4);
	s.Persist(o);
	s.Persist(o2);
	s.Persist(p1);
	s.Persist(p2);
	tx.Commit();

	s.Clear();

	IFullTextSession session = Search.CreateFullTextSession( s );
	tx = session.BeginTransaction();

	QueryParser parser = new MultiFieldQueryParser( new string[] { "name", "authors.name" }, new StandardAnalyzer() );

	Lucene.Net.Search.Query query = parser.Parse( "Hugo" );
	IList result = session.CreateFullTextQuery( query ).List();
	Assert.AreEqual( 1, result.Count, "collection of embedded ignored" );

	//update the collection
	Product p = (Product) result[0];
	p.Authors.Add( a4 );

	//PhraseQuery
	query = new TermQuery( new Term( "orders.orderNumber", "ZERTYD" ) );
	result = session.CreateFullTextQuery( query).List();
	Assert.AreEqual( 1, result.Count, "collection of untokenized ignored" );
	query = new TermQuery( new Term( "orders.orderNumber", "ACVBNM" ) );
	result = session.CreateFullTextQuery( query).List();
	Assert.AreEqual( 1, result.Count, "collection of untokenized ignored" );

	tx.Commit();

	s.Clear();

	tx = s.BeginTransaction();
	session = Search.CreateFullTextSession( s );
	query = parser.Parse( "Proust" );
	result = session.CreateFullTextQuery( query ).List();
	//HSEARCH-56
	Assert.AreEqual( 1, result.Count, "update of collection of embedded ignored" );

	// Tidy up
	s.Delete(a);
	s.Delete(a2);
	s.Delete(a3);
	s.Delete(a4);
	s.Delete(o);
	s.Delete(o2);
	s.Delete(p1);
	s.Delete(p2);
	tx.Commit();

	s.Close();
}

Point to anyone who want to start a list of how many good test metrics this test violates.

Oh, and right now, this test fails.