/**
  * Gets the blob with blob ID {@code blobId} and verifies that the headers and content match with
  * what is expected.
  *
  * @param blobId the blob ID of the blob to GET.
  * @param range the {@link ByteRange} for the request.
  * @param expectedHeaders the expected headers in the response.
  * @param expectedContent the expected content of the blob.
  * @throws ExecutionException
  * @throws InterruptedException
  */
 private void getBlobAndVerify(
     String blobId, ByteRange range, HttpHeaders expectedHeaders, ByteBuffer expectedContent)
     throws ExecutionException, InterruptedException, RestServiceException {
   HttpHeaders headers = null;
   if (range != null) {
     headers =
         new DefaultHttpHeaders()
             .add(RestUtils.Headers.RANGE, RestTestUtils.getRangeHeaderString(range));
   }
   FullHttpRequest httpRequest = buildRequest(HttpMethod.GET, blobId, headers, null);
   Queue<HttpObject> responseParts = nettyClient.sendRequest(httpRequest, null, null).get();
   HttpResponse response = (HttpResponse) responseParts.poll();
   assertEquals(
       "Unexpected response status",
       range == null ? HttpResponseStatus.OK : HttpResponseStatus.PARTIAL_CONTENT,
       response.getStatus());
   checkCommonGetHeadHeaders(response.headers());
   assertEquals(
       "Content-Type does not match",
       expectedHeaders.get(RestUtils.Headers.AMBRY_CONTENT_TYPE),
       response.headers().get(HttpHeaders.Names.CONTENT_TYPE));
   assertEquals(
       RestUtils.Headers.BLOB_SIZE + " does not match",
       expectedHeaders.get(RestUtils.Headers.BLOB_SIZE),
       response.headers().get(RestUtils.Headers.BLOB_SIZE));
   assertEquals(
       "Accept-Ranges not set correctly",
       "bytes",
       response.headers().get(RestUtils.Headers.ACCEPT_RANGES));
   byte[] expectedContentArray = expectedContent.array();
   if (range != null) {
     long blobSize = Long.parseLong(expectedHeaders.get(RestUtils.Headers.BLOB_SIZE));
     assertEquals(
         "Content-Range header not set correctly",
         RestUtils.buildContentRangeAndLength(range, blobSize).getFirst(),
         response.headers().get(RestUtils.Headers.CONTENT_RANGE));
     ByteRange resolvedRange = range.toResolvedByteRange(blobSize);
     expectedContentArray =
         Arrays.copyOfRange(
             expectedContentArray,
             (int) resolvedRange.getStartOffset(),
             (int) resolvedRange.getEndOffset() + 1);
   } else {
     assertNull(
         "Content-Range header should not be set",
         response.headers().get(RestUtils.Headers.CONTENT_RANGE));
   }
   if (expectedContentArray.length < FRONTEND_CONFIG.frontendChunkedGetResponseThresholdInBytes) {
     assertEquals(
         "Content-length not as expected",
         expectedContentArray.length,
         HttpHeaders.getContentLength(response));
   }
   byte[] responseContentArray = getContent(responseParts, expectedContentArray.length).array();
   assertArrayEquals(
       "GET content does not match original content", expectedContentArray, responseContentArray);
   assertTrue("Channel should be active", HttpHeaders.isKeepAlive(response));
 }
 /**
  * Gets the headers of the blob with blob ID {@code blobId} and verifies them against what is
  * expected.
  *
  * @param blobId the blob ID of the blob to HEAD.
  * @param range the {@link ByteRange} for the request.
  * @param expectedHeaders the expected headers in the response.
  * @throws ExecutionException
  * @throws InterruptedException
  */
 private void getHeadAndVerify(String blobId, ByteRange range, HttpHeaders expectedHeaders)
     throws ExecutionException, InterruptedException, RestServiceException {
   HttpHeaders headers = null;
   if (range != null) {
     headers =
         new DefaultHttpHeaders()
             .add(RestUtils.Headers.RANGE, RestTestUtils.getRangeHeaderString(range));
   }
   FullHttpRequest httpRequest = buildRequest(HttpMethod.HEAD, blobId, headers, null);
   Queue<HttpObject> responseParts = nettyClient.sendRequest(httpRequest, null, null).get();
   HttpResponse response = (HttpResponse) responseParts.poll();
   assertEquals(
       "Unexpected response status",
       range == null ? HttpResponseStatus.OK : HttpResponseStatus.PARTIAL_CONTENT,
       response.getStatus());
   checkCommonGetHeadHeaders(response.headers());
   long contentLength = Long.parseLong(expectedHeaders.get(RestUtils.Headers.BLOB_SIZE));
   if (range != null) {
     Pair<String, Long> rangeAndLength =
         RestUtils.buildContentRangeAndLength(range, contentLength);
     assertEquals(
         "Content-Range header not set correctly",
         rangeAndLength.getFirst(),
         response.headers().get(RestUtils.Headers.CONTENT_RANGE));
     contentLength = rangeAndLength.getSecond();
   } else {
     assertNull(
         "Content-Range header should not be set",
         response.headers().get(RestUtils.Headers.CONTENT_RANGE));
   }
   assertEquals(
       "Accept-Ranges not set correctly",
       "bytes",
       response.headers().get(RestUtils.Headers.ACCEPT_RANGES));
   assertEquals(
       RestUtils.Headers.CONTENT_LENGTH + " does not match expected",
       contentLength,
       HttpHeaders.getContentLength(response));
   assertEquals(
       RestUtils.Headers.CONTENT_TYPE + " does not match " + RestUtils.Headers.AMBRY_CONTENT_TYPE,
       expectedHeaders.get(RestUtils.Headers.AMBRY_CONTENT_TYPE),
       HttpHeaders.getHeader(response, HttpHeaders.Names.CONTENT_TYPE));
   verifyBlobProperties(expectedHeaders, response);
   discardContent(responseParts, 1);
   assertTrue("Channel should be active", HttpHeaders.isKeepAlive(response));
 }