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" Test for user functions.
" Also test an <expr> mapping calling a function.
" Also test that a builtin function cannot be replaced.
" Also test for regression when calling arbitrary expression.
func 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
endfunc
func Compute(n1, n2, divname)
if a:n2 == 0
return "fail"
endif
exe "let g:" . a:divname . " = ". a:n1 / a:n2
return "ok"
endfunc
func Expr1()
silent! normal! v
return "111"
endfunc
func Expr2()
call search('XX', 'b')
return "222"
endfunc
func ListItem()
let g:counter += 1
return g:counter . '. '
endfunc
func ListReset()
let g:counter = 0
return ''
endfunc
func FuncWithRef(a)
unlet g:FuncRef
return a:a
endfunc
func Test_user_func()
let g:FuncRef = function("FuncWithRef")
let g:counter = 0
inoremap <expr> ( ListItem()
inoremap <expr> [ ListReset()
imap <expr> + Expr1()
imap <expr> * Expr2()
let g:retval = "nop"
call assert_equal('xxx4asdf', Table("xxx", 4, "asdf"))
call assert_equal('fail', Compute(45, 0, "retval"))
call assert_equal('nop', g:retval)
call assert_equal('ok', Compute(45, 5, "retval"))
call assert_equal(9, g:retval)
call assert_equal(333, g:FuncRef(333))
let g:retval = "nop"
call assert_equal('xxx4asdf', "xxx"->Table(4, "asdf"))
call assert_equal('fail', 45->Compute(0, "retval"))
call assert_equal('nop', g:retval)
call assert_equal('ok', 45->Compute(5, "retval"))
call assert_equal(9, g:retval)
" call assert_equal(333, 333->g:FuncRef())
enew
normal oXX+-XX
call assert_equal('XX111-XX', getline('.'))
normal o---*---
call assert_equal('---222---', getline('.'))
normal o(one
call assert_equal('1. one', getline('.'))
normal o(two
call assert_equal('2. two', getline('.'))
normal o[(one again
call assert_equal('1. one again', getline('.'))
call assert_equal(3, max([1, 2, 3]))
call assert_fails("call extend(g:, {'max': function('min')})", 'E704')
call assert_equal(3, max([1, 2, 3]))
" Regression: the first line below used to throw ?E110: Missing ')'?
" Second is here just to prove that this line is correct when not skipping
" rhs of &&.
call assert_equal(0, (0 && (function('tr'))(1, 2, 3)))
call assert_equal(1, (1 && (function('tr'))(1, 2, 3)))
delfunc Table
delfunc Compute
delfunc Expr1
delfunc Expr2
delfunc ListItem
delfunc ListReset
unlet g:retval g:counter
enew!
endfunc
func Log(val, base = 10)
return log(a:val) / log(a:base)
endfunc
func Args(mandatory, optional = v:null, ...)
return deepcopy(a:)
endfunc
func Args2(a = 1, b = 2, c = 3)
return deepcopy(a:)
endfunc
func MakeBadFunc()
func s:fcn(a, b=1, c)
endfunc
endfunc
func Test_default_arg()
call assert_equal(1.0, Log(10))
call assert_equal(log(10), Log(10, exp(1)))
call assert_fails("call Log(1,2,3)", 'E118')
let res = Args(1)
call assert_equal(res.mandatory, 1)
call assert_equal(res.optional, v:null)
call assert_equal(res['0'], 0)
let res = Args(1,2)
call assert_equal(res.mandatory, 1)
call assert_equal(res.optional, 2)
call assert_equal(res['0'], 0)
let res = Args(1,2,3)
call assert_equal(res.mandatory, 1)
call assert_equal(res.optional, 2)
call assert_equal(res['0'], 1)
call assert_fails("call MakeBadFunc()", 'E989')
call assert_fails("fu F(a=1 ,) | endf", 'E475')
let d = Args2(7, v:none, 9)
call assert_equal([7, 2, 9], [d.a, d.b, d.c])
call assert_equal("\n"
\ .. " function Args2(a = 1, b = 2, c = 3)\n"
\ .. "1 return deepcopy(a:)\n"
\ .. " endfunction",
\ execute('func Args2'))
endfunc
func s:addFoo(lead)
return a:lead .. 'foo'
endfunc
func Test_user_method()
eval 'bar'->s:addFoo()->assert_equal('barfoo')
endfunc
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