diff --git a/test/lua/test_basic_client.lua b/test/lua/test_basic_client.lua
index e2e0d48..e7571f9 100644
--- a/test/lua/test_basic_client.lua
+++ b/test/lua/test_basic_client.lua
@@ -112,6 +112,8 @@
   assertEqual(
       client:testDouble(0.123456789), 0.123456789, 'Failed testDouble 3')
 
+  -- TODO testBinary() ...
+	  
   -- Accuracy of 16 decimal digits (rounds)
   local a, b = 1.12345678906666663, 1.12345678906666661
   assertEqual(a, b)
diff --git a/test/lua/test_basic_server.lua b/test/lua/test_basic_server.lua
index 7c175da..96a1ae9 100644
--- a/test/lua/test_basic_server.lua
+++ b/test/lua/test_basic_server.lua
@@ -51,6 +51,10 @@
   return d
 end
 
+function TestHandler:testBinary(by)
+  return by
+end
+
 function TestHandler:testStruct(thing)
   return thing
 end