@Test
  public void testSingleBlobDeletedReturned() throws Exception {
    ServerErrorCode[] serverErrorCodes = new ServerErrorCode[9];
    Arrays.fill(serverErrorCodes, ServerErrorCode.UnknownError);
    serverErrorCodes[7] = ServerErrorCode.BlobDeleted;
    testWithErrorCodes(serverErrorCodes, partition, serverLayout, RouterErrorCode.UnexpectedInternalError,
        deleteErrorCodeChecker, localDc);
  }
In this test, there is only one server that returns {@code ServerErrorCode.Blob_Deleted}, which is
not sufficient to meet the success target, therefore a router exception should be expected. The order
of received responses is the same as defined in {@code serverErrorCodes}.
ambry-router/src/test/java/com/github/ambry/router/DeleteManagerTest.java