for (int state : failedStates) {
                transport.setState(state);
                assertTrue(transport.isFailed(), "State " + state + " should be failed");
            }

            for (int state : nonFailedStates) {
                transport.setState(state);
                assertFalse(transport.isFailed(), "State " + state + " should not be failed");
            }
        }
    }

    @Nested

        final SuggestWriterResult result = new SuggestWriterResult();
        if (response.hasFailures()) {
            for (final BulkItemResponse bulkItemResponses : response.getItems()) {
                if (bulkItemResponses.isFailed()) {
                    result.addFailure(new SuggestIndexException("Bulk failure. " + bulkItemResponses.getFailureMessage()));
                }
            }
        }

        return result;
    }

            final Map<String, Object> itemMap = new HashMap<>();
            itemMap.put("result", item.status().name());
            if (item.isFailed()) {
                itemMap.put("message", item.getFailureMessage());
            } else {
                itemMap.put("id", item.getId());
            }
            return itemMap;