anchor.diff:      change_since_many,
       change_since_include_doc,
       revdiff,
  -    put_rev
  +    put_rev,
  +    change_deleted
     ].
   
   init_per_suite(Config) ->
  
positive.code:   [<<"cc">>] = barrel:changes_since(<<"testdb">>, 2, Fun, []),
    ok.
  
  change_since_include_doc(_Config) ->
    Fun =
      fun(Seq, Change, Acc) ->
  
negative.code:   change_since_include_doc/1,
    revdiff/1,
    get_revisions/1,
    put_rev/1,
    change_deleted/1
  ]).
  
  all() ->
  