function testBoolReturns()
 {
     $user = ORM::factory('User')->where('username', '=', 'daniel')->find();
     $bools = array(true, false);
     $this->assertTrue(in_array(achievement::check_newbie($user), $bools), 'check_newbie did not return a bool');
     $this->assertTrue(in_array(achievement::check_hattrick($user), $bools), 'check_hattrick did not return a bool');
     $this->assertTrue(in_array(achievement::check_7daystreak($user), $bools), 'check_7daystreak did not return a bool');
     $this->assertTrue(in_array(achievement::check_hotstreak($user), $bools), 'check_hotstreak did not return a bool');
 }