@After
  public void cleanup() throws InterruptedException {
    ambryCUQuotaSource.shutdown();
    inMemAccountService.close();
  }
Create test setup by creating the {@link AmbryCUQuotaSource} object and updating account service.
@throws IOException
@throws AccountServiceException
ambry-quota/src/test/java/com/github/ambry/quota/capacityunit/AmbryCUQuotaSourceTest.java