rtpsync: use macros to simplify tests
rtpsync: use macros to simplify tests

Change-Id: Ifcc7a9a9ac7225d8c2010f040b1009cae0d18061

ESTOS/kms-core,Kurento/kms-core,ESTOS/kms-core,Kurento/kms-core,ESTOS/kms-core,ESTOS/kms-core,Kurento/kms-core,Kurento/kms-core