public Guid IndexTest(Indexer indexer, string path, string contains)
{
contains = contains.ToLower();
var file = ReadFile(path);
var doc = indexer.CreateDocument(file.Item2);
doc.Add(new Field("Id", file.Item1.ToString(), Field.Store.YES, Field.Index.NOT_ANALYZED));
indexer.Writer.AddDocument(doc);
indexer.Writer.Commit();
indexer.Refresh();
var parser = new QueryParser(indexer.Version, indexer.DocumentContentField, indexer.Analyser);
var query = parser.Parse(contains);
var topDocs = indexer.Searcher.Search(query, 1000);
//topDocs = indexer.Searcher.Search(query, topDocs.totalHits);
var docs = topDocs
#if LuceneV290
.scoreDocs
.Select(sd => indexer.Searcher.Doc(sd.doc))
#else
.ScoreDocs
.Select(sd => indexer.Searcher.Doc(sd.Doc))
#endif
.ToArray();
Assert.IsTrue(docs.Any(d => d.GetField("Id").AsString() == file.Item1.ToString()));
return file.Item1;
}