### Question:
DefaultJobService implements JobService { @Override public int getJobExecutionCount(final JobInstance jobInstance) { return this.lightminJobExecutionDao.getJobExecutionCount(jobInstance); } DefaultJobService(final JobOperator jobOperator,
                             final JobRegistry jobRegistry,
                             final JobExplorer jobExplorer,
                             final LightminJobExecutionDao lightminJobExecutionDao); @Override int getJobInstanceCount(final String jobName); @Override int getJobExecutionCount(final JobInstance jobInstance); @Override Set<String> getJobNames(); @Override Job getJobByName(final String jobName); @Override Collection<JobInstance> getJobInstances(final String jobName, final int startIndex, final int pageSize); @Override Collection<JobExecution> getJobExecutions(final JobInstance jobInstance); @Override Collection<JobExecution> getJobExecutions(final JobInstance jobInstance, final int start, final int count); @Override JobExecution getJobExecution(final Long jobExecutionId); @Override JobInstance getJobInstance(final Long jobInstanceId); @Override void attachJobInstance(final JobExecution jobExecution); @Override void restartJobExecution(final Long jobExecutionId); @Override void stopJobExecution(final Long jobExecutionId); @Override JobParameters getLastJobParameters(final String jobName); @Override void afterPropertiesSet();  }### Answer:
@Test public void getJobExecutionCountTest() { final Integer count = 10; when(this.lightminJobExecutionDao.getJobExecutionCount(any(JobInstance.class))).thenReturn(count); final Integer resultCount = this.jobService.getJobExecutionCount(new JobInstance(1L, "testjob")); assertThat(resultCount).isEqualTo(count); }