anchor.diff:    [{game, GameId} | Config];
   init_per_testcase(Test, Config) when Test == collision_with_serpent_body;
                                        Test == collision_with_serpent_head;
  +                                     Test == collision_with_serpent_self;
                                        Test == fruit_reapears;
                                        Test == fruit_feeds ->
     Game = spts_games_repo:create(#{cols => 5, rows => 5, initial_food => 0}),
  
positive.code: 
    {comment, ""}.
  
  -spec collision_with_serpent_head(spts_test_utils:config()) ->
    {comment, []}.
  collision_with_serpent_head(Config) ->
  
negative.code:         , collision_detection_down_wall/1
          , collision_with_serpent_body/1
          , collision_with_serpent_head/1
          , collision_with_serpent_self/1
          , always_a_fruit/1
          , fruit_reapears/1
          , fruit_feeds/1
  