Test for user functions

STARTTEST
:function Table(title, ...)
:  let ret = a:title
:  let idx = 1
:  while idx <= a:0
:    exe "let ret = ret . a:" . idx
:    let idx = idx + 1
:  endwhile
:  return ret
:endfunction
:function Compute(n1, n2, divname)
:  if a:n2 == 0
:    return "fail"
:  endif
:  exe "let g:" . a:divname . " = ". a:n1 / a:n2
:  return "ok"
:endfunction
:let retval = "nop"
/^here
C=Table("xxx", 4, "asdf")
 =Compute(45, 0, "retval")
 =retval
 =Compute(45, 5, "retval")
 =retval
:.wq! test.out
ENDTEST

here