public function testWarmup()
{
$dir = 'test_dir';
list($low) = $this->createRouterMocks();
$low->expects($this->never())->method('warmUp');
$high = $this->getMock('Symfony\\Cmf\\Component\\Routing\\Tests\\Routing\\WarmableRouterMock');
$high->expects($this->once())->method('warmUp')->with($dir);
$this->router->add($low, 10);
$this->router->add($high, 100);
$this->router->warmUp($dir);
}