### Question:
ProjectReleaseTaskServiceImpl implements ProjectReleaseTaskService { @Override public List<ProjectReleaseTask> findAllByProjectId(Integer projectId) { Pageable pageable = PageRequest.of(0, 100, Sort.by(Direction.DESC, "createTime")); List<ProjectReleaseTask> result = projectReleaseTaskDao.findAllByProjectId(projectId, pageable); result.forEach(task -> { setJdkAndUserInfo(task); }); return result; }  @Override ProjectReleaseTask save(ProjectReleaseTask projectReleaseTask); @Override List<ProjectReleaseTask> findAllByProjectId(Integer projectId); @Override Long count(Integer projectId); @Override Optional<ProjectReleaseTask> findByProjectIdAndVersion(Integer projectId, String version);  }### Answer:
@Test public void find_all_by_project_id_no_data() { assertThat(projectReleaseTaskService.findAllByProjectId(1)).isEmpty(); }