- setup:
  cleanup:
  args:     1 2 3 4
  input:
  output:   (1,2,3), (1,2,3,4), (2,3,4)
- setup:
  cleanup:
  args:     2
  input:
  output:   ()
- setup:
  cleanup:
  args:     1 2 4 6 7
  input:
  output:   (2,4,6)