anchor.diff:                                  half_join_and_recover_after_step3,
                                   half_join_and_recover_after_step4
                                  ]},
  +     {leave_tests, [sequence], [
  +                                %% leaves one node with no lease
  +                                %% half_leave_and_recover_after_step1,
  +                                %% half_leave_and_recover_after_step2,
  +                                half_leave_and_recover_after_step3,
  +                                half_leave_and_recover_after_step4
  +                               ]},
        {repeater, [{repeat, 30}], [{group, slide_tests}]}
       ].
   
   all() -> [
  -          {group, slide_tests}
  +          {group, slide_tests},
  +          {group, leave_tests}
            ].
   
   suite() -> [ {timetrap, {seconds, 60}} ].
  
positive.code: 
  -define(CLOSE, close).
  
  num_executions() ->
      5.
  
  repeater_num_executions() ->
      10.
  
  ring_size() ->
      4.
  
  groups() ->
      [{slide_tests, [sequence], [
                                  %% leaves one node with no lease
  
negative.code: 
  half_join_and_recover_after_step4(Config) ->
      half_join_and_recover(Config, split_reply_step4).
  
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %% test interrupted merge before recover
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  
  half_leave_and_recover_after_step1(Config) ->
      half_leave_and_recover(Config, merge_reply_step1).
  
  half_leave_and_recover_after_step2(Config) ->
      half_leave_and_recover(Config, merge_reply_step2).
  
  half_leave_and_recover_after_step3(Config) ->
      half_leave_and_recover(Config, merge_reply_step3).
  
  half_leave_and_recover_after_step4(Config) ->
      half_leave_and_recover(Config, merge_reply_step4).
  
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %% generic test for interrupted split before recover
  