final SearchHit[] hits = searchHits.getHits();
                if (hits.length == 0) {
                    break;
                }

                final BulkRequestBuilder bulkRequest = client.prepareBulk();
                for (final SearchHit hit : hits) {
                    bulkRequest.add(client.prepareDelete().setIndex(asEsIndex()).setId(hit.getId()));
                }
                count += hits.length;

                final SearchHit[] hits = searchHits.getHits();
                if (hits.length == 0) {
                    break;
                }

                final BulkRequestBuilder bulkRequest = client.prepareBulk();
                for (final SearchHit hit : hits) {
                    bulkRequest.add(client.prepareDelete().setIndex(asEsIndex()).setId(hit.getId()));
                }
                count += hits.length;

        when(mockScrollResponse.getHits()).thenReturn(mockScrollHits);

        // Setup bulk delete
        when(mockClient.prepareBulk()).thenReturn(mockBulkBuilder);
        when(mockClient.prepareDelete()).thenReturn(mockDeleteBuilder);
        when(mockDeleteBuilder.setIndex("test-index")).thenReturn(mockDeleteBuilder);

     */
    protected <T> BulkResponse doInsertAll(final List<T> list, final OpType opType) {
        try {
            return getClient().get(c -> {
                final BulkRequestBuilder bulkRequest = c.prepareBulk();
                for (final T target : list) {
                    final String id = getId(getSessionId(target), getUrl(target));
                    try (final XContentBuilder source = getXContentBuilder(target)) {

                    if (hits.length == 0) {
                        break;
                    }

                    final BulkRequestBuilder bulkRequestBuilder = client.prepareBulk();
                    Stream.of(hits).map(SearchHit::getId).forEach(id -> bulkRequestBuilder.add(new DeleteRequest(index, id)));

        Client client = runner.client();
        int num = 1000;
        String indexName = "test";

        BulkRequestBuilder bulkRequestBuilder = client.prepareBulk();
        for (int i = 0; i < num; i++) {
            Map<String, Object> source = Collections.singletonMap("content", "test");