anchor.diff:          All elements in `expected` ['item', 'number of expected occurances']:
           {[2, 1], [4, 1]}
           Missing elements from `actual` ('item', 'number of missing occurances'):
  -        
  +        {}
           Extra elements in `actual` ('item', 'number of extra occurances'):
           * for 2 found 2 of expected 1"
                 format
  
positive.code:         Missing elements from `actual` ('item', 'number of missing occurances'):
          * for 4 found 0 of expected 1
          Extra elements in `actual` ('item', 'number of extra occurances'):
          "
                format
            assertTestFailsWithMsg msg (test, Normal)
  
  
negative.code:         All elements in `expected` ['item', 'number of expected occurances']:
          {[1, 1], [2, 1], [4, 2]}
          Missing elements from `actual` ('item', 'number of missing occurances'):
          * for 1 found 0 of expected 1\n\t* for 4 found 1 of expected 2
          Extra elements in `actual` ('item', 'number of extra occurances'):
          * for 2 found 2 of expected 1"
                format
  