Convert to span and avoid deprecated ndn-cxx functions

Change-Id: I260639ef4c13e6a492b29d3b976cca0ae29876cb
diff --git a/tests/test-full-sync.cpp b/tests/test-full-sync.cpp
index 8aa9c8e..d3d9e03 100644
--- a/tests/test-full-sync.cpp
+++ b/tests/test-full-sync.cpp
@@ -476,7 +476,7 @@
     state.addContent(Name(prefixToPublish).appendNumber(nodes[0]->m_prefixes[prefixToPublish]));
 
     auto block = state.wireEncode();
-    compressed = detail::compress(nodes[0]->m_contentCompression, block.wire(), block.size());
+    compressed = detail::compress(nodes[0]->m_contentCompression, block);
   } while (compressed->size() < (ndn::MAX_NDN_PACKET_SIZE >> 1));
 
   advanceClocks(10_ms, 100);