### Question:
FileShareMountManager { public List<FileShareMount> loadByRegionId(final Long regionId) { return fileShareMountDao.loadAllByRegionId(regionId); }  FileShareMount load(final Long id); Optional<FileShareMount> find(final Long id); List<FileShareMount> loadByRegionId(final Long regionId); @Transactional(propagation = Propagation.REQUIRED) FileShareMount save(final FileShareMount fileShareMount); @Transactional(propagation = Propagation.REQUIRED) void delete(final Long id);  }### Answer:
@Test public void loadByRegionId() { Assert.assertArrayEquals(Collections.singletonList(azureShareMount()).toArray(new FileShareMount[0]), shareMountManager.loadByRegionId(azureShareMount().getRegionId()).toArray(new FileShareMount[0])); Assert.assertArrayEquals(Collections.singletonList(awsShareMount()).toArray(new FileShareMount[0]), shareMountManager.loadByRegionId(awsShareMount().getRegionId()).toArray(new FileShareMount[0])); }