RandomIndexWriter writer = new RandomIndexWriter (random, directory, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random)).setMergePolicy(newLogMergePolicy()));
Document doc = new Document();
doc.add (newField("field", "one two three four five", Field.Store.YES, Field.Index.ANALYZED));
doc.add (newField("sorter", "b", Field.Store.YES, Field.Index.ANALYZED));
writer.addDocument (doc);
doc = new Document();
doc.add (newField("field", "one two three four", Field.Store.YES, Field.Index.ANALYZED));
doc.add (newField("sorter", "d", Field.Store.YES, Field.Index.ANALYZED));
writer.addDocument (doc);