I was on a server with a friend and I used the @r in
/testfor @r
and it only ever chose the person who was running the command.
Comments 3
Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases. If this has been done, we can reopen the issue.
Keep in mind that the "Resolved"-Status on this ticket just means "Answered", and that we are waiting for further information on whether this issue still exists or not. We will reopen it as soon as the requested information has been delivered.
It's pretty difficult to confirm this with only 2 players. It could be randomly selecting the same person. I think you should run a server with a least 6-10 players and retest.