[AC-5087] add test for limit edge cases:
[AC-5087] add test for limit edge cases:

- add test for limit>count
- add test for limit>MAX_LIMIT
- add test for limit='' (null)
- add test for limit=5.5 (non-integer)

masschallenge/impact-api,masschallenge/impact-api,masschallenge/impact-api,masschallenge/impact-api