Joachim Low's men are ranked as one of the main contenders for next summer's World Cup in Brazil, but the Manchester United striker believes they are not yet the best
Joachim Low's men are considered one of the main contenders to topple the World and European champions in Brazil next summer following the rise of Bayern Munich and Borussia Dortmund.
Rooney believes Spain remain the team to beat, although he admits victory over Germany at Wembley on Tuesday would provide a big confidence boost for Roy Hodgson's men after defeat to Chile.
"I'd rather be Spain as they are world and European champions," he told reporters. "But Germany are a great team with great players and it will be a big test for us.
"It's nice to beat anyone but especially the Germans. It's always nice when you beat them.
"It's great when you beat the big teams. When we beat Brazil it gave everyone a lift and getting a draw away in Brazil was a great result for us.
"So it's important that we try to win the game but it’s important that we try to deliver what the manager wants from us on the pitch as well."
Mesut Ozil will miss out on Tuesday's game as Low experiments with his squad ahead of the World Cup, but Rooney believes Germany's work ethic will make them difficult regardless of who plays.
"The biggest thing they have got is that they are a team brought together that all know their jobs, that is why they are so difficult to play against," he added.
"Against Chile we did some good things but they caught us by surprise with the way they played.
"Germany will be a completely different game. It will be a game we are used to a bit more. Chile showed us how South American teams play. They were a difficult team to get near to.
"The Germany game will be more similar to a Premier League game. We should be ready for that. We have to move on now and prepare for Tuesday."