anchor.diff:  
   %% tracing/debugging
   
  -%% @doc Enables trace debugging. See the 
  +%% @doc Enables trace debugging. See the
   %% <a href="https://github.com/nebularis/systest/wiki/tracing"><em>Tracing/Debugging Guide</em></a>
  -%% for more details.   
  +%% for more details.
   %% @end
   trace_on(Scope, Config) ->
       systest_trace:debug(Scope, Config).
   
  -%% @doc Disables trace debugging. See the 
  +%% @doc Disables trace debugging. See the
   %% <a href="https://github.com/nebularis/systest/wiki/tracing"><em>Tracing/Debugging Guide</em></a>
  -%% for more details.   
  +%% for more details.
   %% @end
   trace_off(Config) ->
       systest_trace:stop(Config).
  
positive.code: process_activity_state(ProcRef) ->
      systest_proc:activity_state(ProcRef).
  
  %% @doc Returns any configured user-data from the given 
  %% {@link systest_proc. <em>Process</em>}.
  %% @end
  read_process_user_data(ProcRef) ->
      systest_proc:user_data(ProcRef).
  
  %% @doc Writes the given data (term) to the indicated 
  %% {@link systest_proc. <em>Process</em>}.
  %% @end
  write_process_user_data(ProcRef, Data) ->
  
negative.code:     end.
  
  %% @doc starts any resources associated with the given scope, using the
  %% provided identity when registering them with the testing framework
  %% @end
  start(Scope, Identify, Config) ->
      try systest_sut:start(Scope, Identify, trace_on(Identify, Config)) of
  