@Test
public void shouldDoBulkIndexDocument(){
//given
Integer documentId1 = RandomUtils.nextInt();
IntegerIDEntity sampleEntity1 = new IntegerIDEntity();
sampleEntity1.setId(documentId1);
sampleEntity1.setMessage("some message");
sampleEntity1.setVersion(System.currentTimeMillis());
Integer documentId2 = RandomUtils.nextInt();
IntegerIDEntity sampleEntity2 = new IntegerIDEntity();
sampleEntity2.setId(documentId2);
sampleEntity2.setMessage("some message");
sampleEntity2.setVersion(System.currentTimeMillis());
//when
repository.save(Arrays.asList(sampleEntity1, sampleEntity2));
//then
IntegerIDEntity entity1FromElasticSearch = repository.findOne(documentId1);
assertThat(entity1FromElasticSearch, is(notNullValue()));
IntegerIDEntity entity2FromElasticSearch = repository.findOne(documentId2);
assertThat(entity2FromElasticSearch, is(notNullValue()));
}