SubstringEvaluator evaluator = new SubstringEvaluator( node, store, schemaManager );
SubstringCursor cursor = new SubstringCursor( store, evaluator );
assertEquals( node, evaluator.getExpression() );
cursor.beforeFirst();
assertTrue( cursor.next() );
assertTrue( cursor.available() );
assertEquals( Strings.getUUID( 8 ), cursor.get().getId() );
assertEquals( "jack daniels", cursor.get().getKey() );