UftpRoleInformation#getSenderRole does not work for TestMessage #140
Description
Describe the bug
UftpRoleInformation#getSenderRole does not work for TestMessage
To Reproduce
Call UftpRoleInformation#getSenderRole with TestMessage.class.
It always returns AGR, but TestMessage can also be sent by other roles.
Expected behavior
There is no way to determine the role based solely on the TestMessage type. I think throwing an exception would at least not be incorrect.