---
ch-1:
  - function: productsign
    arguments:
      - -1
      - -2
      - -3
      - -4
      - 3
      - 2
      - 1
    result: 1
  - arguments:
      - 1
      - 2
      - 0
      - -2
      - -1
    result: 0
  - arguments:
      - -1
      - -1
      - 1
      - -1
      - 2
    result: -1
ch-2:
  - function: linecounts
    multiarg: 1
    arguments:
      - abcdefghijklmnopqrstuvwxyz
      - - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
    result:
      - 3
      - 60
  - function: linecounts
    multiarg: 1
    arguments:
      - bbbcccdddaaa
      - - 4
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
        - 10
    result:
      - 2
      - 4