implemented and tested PrintField
diff --git a/aos/common/test_queue.q b/aos/common/test_queue.q
index 878be08..d603802 100644
--- a/aos/common/test_queue.q
+++ b/aos/common/test_queue.q
@@ -3,6 +3,7 @@
 struct Structure {
   bool struct_bool;
   uint16_t struct_int;
+  float struct_float;
 };
 
 message MessageWithStructure {