### Question:
BuildDAOImpl implements BuildDAO { String concatenateNotes(String noteContent, String previousNoteContent) { return noteContent + NL + NL + previousNoteContent; } @Inject  BuildDAOImpl(GitUtils gitUtils, TimeService timeService); @Override BuildResult getLast(Repository repo, String sha1); @Override List<BuildResult> getAll(Repository repo, String sha1); @Override void save(BuildResult buildResult, Repository repo, String userName, Pair<Long,Integer> when);  }### Answer:
@Test public void testConcatenateNote() { assertThat(dao.concatenateNotes("blabla", "bloblo")).isEqualTo("blabla\n\nbloblo"); }