anchor.diff:          All elements in `actual`:
           {2, 2, 4}
           All elements in `expected` ['item', 'number of expected occurances']:
  -        {2, 4}
  +        {[2, 1], [4, 1]}
           Missing elements from `actual` ('item', 'number of missing occurances'):
           {}
           Extra elements in `actual` ('item', 'number of extra occurances'):
  
positive.code:         All elements in `actual`:
          {2, 2}
          All elements in `expected` ['item', 'number of expected occurances']:
          {2, 2, 4}
          Missing elements from `actual` ('item', 'number of missing occurances'):
          {(4, 1)}
          Extra elements in `actual` ('item', 'number of extra occurances'):
  
negative.code:         All elements in `actual`:
          {2, 2}
          All elements in `expected` ['item', 'number of expected occurances']:
          {[1, 1], [2, 1], [4, 1]}
          Missing elements from `actual` ('item', 'number of missing occurances'):
          {(1, 1), (4, 1)}
          Extra elements in `actual` ('item', 'number of extra occurances'):
  