repository = (BasicRepository) collabReview.getRepository();
repository.reset();
AuthorManager authorManager = collabReview.getAuthorManager();
authorManager.storeAuthor(new Author("alice"));
authorManager.storeAuthor(new Author("bob"));
authorManager.storeAuthor(new Author("chris"));
artifactAuthor = new Author[]{
authorManager.getAuthor("alice"),
authorManager.getAuthor("bob"),
authorManager.getAuthor("alice"),
authorManager.getAuthor("bob"),