349 

   350 	describe("#clone", function ()

   351 		it("works", function ()

   352 			local s = st.message({type="chat"}, "Hello"):reset();

   353 			local c = st.clone(s);

   354 			assert.same(s, c);

   355 		end);

   356 

   357 		it("works", function ()

   358 			assert.has_error(function ()

   359 				st.clone("this is not a stanza");

   360 			end);

   361 		end);

   362 	end);