public function testRefreshUser()
 {
     $username = '******';
     $user = new TestUser();
     $user->setUsername($username);
     $this->ldapManager->expects($this->once())->method('findUserByUsername')->with($this->equalTo($username))->will($this->returnValue($user));
     $this->assertEquals($user, $this->userProvider->refreshUser($user));
 }