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" Tests for expressions.
func Test_equal()
let base = {}
func base.method()
return 1
endfunc
func base.other() dict
return 1
endfunc
let instance = copy(base)
call assert_true(base.method == instance.method)
call assert_true([base.method] == [instance.method])
call assert_true(base.other == instance.other)
call assert_true([base.other] == [instance.other])
call assert_false(base.method == base.other)
call assert_false([base.method] == [base.other])
call assert_false(base.method == instance.other)
call assert_false([base.method] == [instance.other])
call assert_fails('echo base.method > instance.method')
endfunc
func Test_version()
call assert_true(has('patch-7.4.001'))
call assert_true(has('patch-7.4.01'))
call assert_true(has('patch-7.4.1'))
call assert_true(has('patch-6.9.999'))
call assert_true(has('patch-7.1.999'))
call assert_true(has('patch-7.4.123'))
call assert_false(has('patch-7'))
call assert_false(has('patch-7.4'))
call assert_false(has('patch-7.4.'))
call assert_false(has('patch-9.1.0'))
call assert_false(has('patch-9.9.1'))
endfunc
func Test_dict()
let d = {'': 'empty', 'a': 'a', 0: 'zero'}
call assert_equal('empty', d[''])
call assert_equal('a', d['a'])
call assert_equal('zero', d[0])
call assert_true(has_key(d, ''))
call assert_true(has_key(d, 'a'))
let d[''] = 'none'
let d['a'] = 'aaa'
call assert_equal('none', d[''])
call assert_equal('aaa', d['a'])
endfunc
func Test_strgetchar()
call assert_equal(char2nr('a'), strgetchar('axb', 0))
call assert_equal(char2nr('x'), strgetchar('axb', 1))
call assert_equal(char2nr('b'), strgetchar('axb', 2))
call assert_equal(-1, strgetchar('axb', -1))
call assert_equal(-1, strgetchar('axb', 3))
call assert_equal(-1, strgetchar('', 0))
endfunc
func Test_strcharpart()
call assert_equal('a', strcharpart('axb', 0, 1))
call assert_equal('x', strcharpart('axb', 1, 1))
call assert_equal('b', strcharpart('axb', 2, 1))
call assert_equal('xb', strcharpart('axb', 1))
call assert_equal('', strcharpart('axb', 1, 0))
call assert_equal('', strcharpart('axb', 1, -1))
call assert_equal('', strcharpart('axb', -1, 1))
call assert_equal('', strcharpart('axb', -2, 2))
call assert_equal('a', strcharpart('axb', -1, 2))
endfunc
func Test_getreg_empty_list()
call assert_equal('', getreg('x'))
call assert_equal([], getreg('x', 1, 1))
let x = getreg('x', 1, 1)
let y = x
call add(x, 'foo')
call assert_equal(['foo'], y)
endfunc
func Test_loop_over_null_list()
let null_list = test_null_list()
for i in null_list
call assert_true(0, 'should not get here')
endfor
endfunc
func Test_compare_null_dict()
call assert_fails('let x = test_null_dict()[10]')
call assert_equal({}, {})
call assert_equal(test_null_dict(), test_null_dict())
call assert_notequal({}, test_null_dict())
endfunc
func Test_set_reg_null_list()
call setreg('x', test_null_list())
endfunc
func Test_special_char()
" The failure is only visible using valgrind.
call assert_fails('echo "\<C-">')
endfunc
func Test_option_value()
" boolean
set bri
call assert_equal(1, &bri)
set nobri
call assert_equal(0, &bri)
" number
set ts=1
call assert_equal(1, &ts)
set ts=8
call assert_equal(8, &ts)
" string
exe "set cedit=\<Esc>"
call assert_equal("\<Esc>", &cedit)
set cpo=
call assert_equal("", &cpo)
set cpo=abcdefgi
call assert_equal("abcdefgi", &cpo)
set cpo&vim
endfunc
function Test_printf_64bit()
if has('num64')
call assert_equal("123456789012345", printf('%d', 123456789012345))
endif
endfunc
func Test_substitute_expr()
let g:val = 'XXX'
call assert_equal('XXX', substitute('yyy', 'y*', '\=g:val', ''))
call assert_equal('XXX', substitute('yyy', 'y*', {-> g:val}, ''))
call assert_equal("-\u1b \uf2-", substitute("-%1b %f2-", '%\(\x\x\)',
\ '\=nr2char("0x" . submatch(1))', 'g'))
call assert_equal("-\u1b \uf2-", substitute("-%1b %f2-", '%\(\x\x\)',
\ {-> nr2char("0x" . submatch(1))}, 'g'))
call assert_equal('231', substitute('123', '\(.\)\(.\)\(.\)',
\ {-> submatch(2) . submatch(3) . submatch(1)}, ''))
func Recurse()
return substitute('yyy', 'y*', {-> g:val}, '')
endfunc
call assert_equal('--', substitute('xxx', 'x*', {-> '-' . Recurse() . '-'}, ''))
endfunc
func Test_substitute_expr_arg()
call assert_equal('123456789-123456789=', substitute('123456789',
\ '\(.\)\(.\)\(.\)\(.\)\(.\)\(.\)\(.\)\(.\)\(.\)',
\ {m -> m[0] . '-' . m[1] . m[2] . m[3] . m[4] . m[5] . m[6] . m[7] . m[8] . m[9] . '='}, ''))
call assert_equal('123456-123456=789', substitute('123456789',
\ '\(.\)\(.\)\(.\)\(a*\)\(n*\)\(.\)\(.\)\(.\)\(x*\)',
\ {m -> m[0] . '-' . m[1] . m[2] . m[3] . m[4] . m[5] . m[6] . m[7] . m[8] . m[9] . '='}, ''))
call assert_equal('123456789-123456789x=', substitute('123456789',
\ '\(.\)\(.\)\(.*\)',
\ {m -> m[0] . '-' . m[1] . m[2] . m[3] . 'x' . m[4] . m[5] . m[6] . m[7] . m[8] . m[9] . '='}, ''))
call assert_fails("call substitute('xxx', '.', {m -> string(add(m, 'x'))}, '')", 'E742:')
call assert_fails("call substitute('xxx', '.', {m -> string(insert(m, 'x'))}, '')", 'E742:')
call assert_fails("call substitute('xxx', '.', {m -> string(extend(m, ['x']))}, '')", 'E742:')
call assert_fails("call substitute('xxx', '.', {m -> string(remove(m, 1))}, '')", 'E742:')
endfunc
func Test_function_with_funcref()
let s:f = function('type')
let s:fref = function(s:f)
call assert_equal(v:t_string, s:fref('x'))
call assert_fails("call function('s:f')", 'E700:')
endfunc
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