1" Test for user functions.
2" Also test an <expr> mapping calling a function.
3" Also test that a builtin function cannot be replaced.
4" Also test for regression when calling arbitrary expression.
5
6func Table(title, ...)
7  let ret = a:title
8  let idx = 1
9  while idx <= a:0
10    exe "let ret = ret . a:" . idx
11    let idx = idx + 1
12  endwhile
13  return ret
14endfunc
15
16func Compute(n1, n2, divname)
17  if a:n2 == 0
18    return "fail"
19  endif
20  exe "let g:" . a:divname . " = ". a:n1 / a:n2
21  return "ok"
22endfunc
23
24func Expr1()
25  silent! normal! v
26  return "111"
27endfunc
28
29func Expr2()
30  call search('XX', 'b')
31  return "222"
32endfunc
33
34func ListItem()
35  let g:counter += 1
36  return g:counter . '. '
37endfunc
38
39func ListReset()
40  let g:counter = 0
41  return ''
42endfunc
43
44func FuncWithRef(a)
45  unlet g:FuncRef
46  return a:a
47endfunc
48
49func Test_user_func()
50  let g:FuncRef=function("FuncWithRef")
51  let g:counter = 0
52  inoremap <expr> ( ListItem()
53  inoremap <expr> [ ListReset()
54  imap <expr> + Expr1()
55  imap <expr> * Expr2()
56  let g:retval = "nop"
57
58  call assert_equal('xxx4asdf', Table("xxx", 4, "asdf"))
59  call assert_equal('fail', Compute(45, 0, "retval"))
60  call assert_equal('nop', g:retval)
61  call assert_equal('ok', Compute(45, 5, "retval"))
62  call assert_equal(9, g:retval)
63  call assert_equal(333, g:FuncRef(333))
64
65  enew
66
67  normal oXX+-XX
68  call assert_equal('XX111-XX', getline('.'))
69  normal o---*---
70  call assert_equal('---222---', getline('.'))
71  normal o(one
72  call assert_equal('1. one', getline('.'))
73  normal o(two
74  call assert_equal('2. two', getline('.'))
75  normal o[(one again
76  call assert_equal('1. one again', getline('.'))
77
78  call assert_equal(3, max([1, 2, 3]))
79  call assert_fails("call extend(g:, {'max': function('min')})", 'E704')
80  call assert_equal(3, max([1, 2, 3]))
81
82  " Regression: the first line below used to throw ?E110: Missing ')'?
83  " Second is here just to prove that this line is correct when not skipping
84  " rhs of &&.
85  call assert_equal(0, (0 && (function('tr'))(1, 2, 3)))
86  call assert_equal(1, (1 && (function('tr'))(1, 2, 3)))
87
88  delfunc Table
89  delfunc Compute
90  delfunc Expr1
91  delfunc Expr2
92  delfunc ListItem
93  delfunc ListReset
94  unlet g:retval g:counter
95  enew!
96endfunc
97