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