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neovim/test/old/testdir/test_listchars.vim
zeertzjq fe94e04893
vim-patch:9.0.2126: unused assignments when checking 'listchars' (#26182) 
Problem:  Unused assignments when checking the value of 'listchars'.
Solution: Loop only once when just checking the value.  Add a test to
          check that this change doesn't cause double-free.

closes: vim/vim#13559

00624a2fa0
2023-11-24 06:52:50 +08:00

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" Tests for 'listchars' display with 'list' and :list
source check.vim
source view_util.vim
source screendump.vim
func Check_listchars(expected, end_lnum, end_scol = -1, leftcol = 0)
if a:leftcol > 0
let save_wrap = &wrap
set nowrap
call cursor(1, 1)
exe 'normal! ' .. a:leftcol .. 'zl'
endif
redraw!
for i in range(1, a:end_lnum)
if a:leftcol > 0
let col = virtcol2col(0, i, a:leftcol)
let col += getline(i)->strpart(col - 1, 1, v:true)->len()
call cursor(i, col)
redraw
call assert_equal(a:leftcol, winsaveview().leftcol)
else
call cursor(i, 1)
end
let end_scol = a:end_scol < 0 ? '$'->virtcol() - a:leftcol : a:end_scol
call assert_equal([a:expected[i - 1]->strcharpart(a:leftcol)],
\ ScreenLines(i, end_scol))
endfor
if a:leftcol > 0
let &wrap = save_wrap
endif
endfunc
func Test_listchars()
enew!
set ff=unix
set list
set listchars+=tab:>-,space:.,trail:<
call append(0, [
\ ' aa ',
\ ' bb ',
\ ' cccc ',
\ 'dd ee ',
\ ' '
\ ])
let expected = [
\ '>-------aa>-----$',
\ '..bb>---<<$',
\ '...cccc><$',
\ 'dd........ee<<>-$',
\ '<$'
\ ]
call Check_listchars(expected, 5)
call Check_listchars(expected, 4, -1, 5)
set listchars-=trail:<
let expected = [
\ '>-------aa>-----$',
\ '..bb>---..$',
\ '...cccc>.$',
\ 'dd........ee..>-$',
\ '.$'
\ ]
call Check_listchars(expected, 5)
call Check_listchars(expected, 4, -1, 5)
" tab with 3rd character.
set listchars-=tab:>-
set listchars+=tab:<=>,trail:-
let expected = [
\ '<======>aa<====>$',
\ '..bb<==>--$',
\ '...cccc>-$',
\ 'dd........ee--<>$',
\ '-$'
\ ]
call Check_listchars(expected, 5)
call Check_listchars(expected, 4, -1, 5)
" tab with 3rd character and linebreak set
set listchars-=tab:<=>
set listchars+=tab:<·>
set linebreak
let expected = [
\ '<······>aa<····>$',
\ '..bb<··>--$',
\ '...cccc>-$',
\ 'dd........ee--<>$',
\ '-$'
\ ]
call Check_listchars(expected, 5)
set nolinebreak
set listchars-=tab:<·>
set listchars+=tab:<=>
set listchars-=trail:-
let expected = [
\ '<======>aa<====>$',
\ '..bb<==>..$',
\ '...cccc>.$',
\ 'dd........ee..<>$',
\ '.$'
\ ]
call Check_listchars(expected, 5)
call Check_listchars(expected, 4, -1, 5)
set listchars-=tab:<=>
set listchars+=tab:>-
set listchars+=trail:<
set nolist
normal ggdG
call append(0, [
\ ' fff ',
\ ' gg ',
\ ' h ',
\ 'iii ',
\ ])
let l = split(execute("%list"), "\n")
call assert_equal([
\ '..fff>--<<$',
\ '>-------gg>-----$',
\ '.....h>-$',
\ 'iii<<<<><<$',
\ '$'], l)
" Test lead and trail
normal ggdG
set listchars=eol:$ " Accommodate Nvim default
set listchars+=lead:>,trail:<,space:x
set list
call append(0, [
\ ' ffff ',
\ ' gg',
\ 'h ',
\ ' ',
\ ' 0 0 ',
\ ])
let expected = [
\ '>>>>ffff<<<<$',
\ '>>>>>>>>>>gg$',
\ 'h<<<<<<<<<<<$',
\ '<<<<<<<<<<<<$',
\ '>>>>0xx0<<<<$',
\ '$'
\ ]
call Check_listchars(expected, 6)
call Check_listchars(expected, 5, -1, 6)
call assert_equal(expected, split(execute("%list"), "\n"))
" Test multispace
normal ggdG
set listchars=eol:$ " Accommodate Nvim default
set listchars+=multispace:yYzZ
set list
call append(0, [
\ ' ffff ',
\ ' i i gg',
\ ' h ',
\ ' j ',
\ ' 0 0 ',
\ ])
let expected = [
\ 'yYzZffffyYzZ$',
\ 'yYi iyYzZygg$',
\ ' hyYzZyYzZyY$',
\ 'yYzZyYzZyYj $',
\ 'yYzZ0yY0yYzZ$',
\ '$'
\ ]
call Check_listchars(expected, 6)
call Check_listchars(expected, 5, -1, 6)
call assert_equal(expected, split(execute("%list"), "\n"))
" Test leadmultispace + multispace
normal ggdG
set listchars=eol:$,multispace:yYzZ,nbsp:S
set listchars+=leadmultispace:.-+*
set list
call append(0, [
\ ' ffff ',
\ ' i i  gg',
\ ' h ',
\ ' j ',
\ ' 0 0 ',
\ ])
let expected = [
\ '.-+*ffffyYzZ$',
\ '.-i iSyYzZgg$',
\ ' hyYzZyYzZyY$',
\ '.-+*.-+*.-j $',
\ '.-+*0yY0yYzZ$',
\ '$'
\ ]
call assert_equal('eol:$,multispace:yYzZ,nbsp:S,leadmultispace:.-+*', &listchars)
call Check_listchars(expected, 6)
call Check_listchars(expected, 5, -1, 1)
call Check_listchars(expected, 5, -1, 2)
call Check_listchars(expected, 5, -1, 3)
call Check_listchars(expected, 5, -1, 6)
call assert_equal(expected, split(execute("%list"), "\n"))
" Test leadmultispace without multispace
normal ggdG
set listchars-=multispace:yYzZ
set listchars+=space:+,trail:>,eol:$
set list
call append(0, [
\ ' ffff ',
\ ' i i gg',
\ ' h ',
\ ' j ',
\ ' 0 0 ',
\ ])
let expected = [
\ '.-+*ffff>>>>$',
\ '.-i+i+++++gg$',
\ '+h>>>>>>>>>>$',
\ '.-+*.-+*.-j>$',
\ '.-+*0++0>>>>$',
\ '$'
\ ]
call assert_equal('eol:$,nbsp:S,leadmultispace:.-+*,space:+,trail:>,eol:$', &listchars)
call Check_listchars(expected, 6)
call Check_listchars(expected, 5, -1, 1)
call Check_listchars(expected, 5, -1, 2)
call Check_listchars(expected, 5, -1, 3)
call Check_listchars(expected, 5, -1, 6)
call assert_equal(expected, split(execute("%list"), "\n"))
" Test leadmultispace only
normal ggdG
set listchars=eol:$ " Accommodate Nvim default
set listchars=leadmultispace:.-+*
set list
call append(0, [
\ ' ffff ',
\ ' i i gg',
\ ' h ',
\ ' j ',
\ ' 0 0 ',
\ ])
let expected = [
\ '.-+*ffff ',
\ '.-i i gg',
\ ' h ',
\ '.-+*.-+*.-j ',
\ '.-+*0 0 ',
\ ' '
\ ]
call assert_equal('leadmultispace:.-+*', &listchars)
call Check_listchars(expected, 5, 12)
call assert_equal(expected, split(execute("%list"), "\n"))
" Changing the value of 'ambiwidth' twice shouldn't cause double-free when
" "leadmultispace" is specified.
set ambiwidth=double
set ambiwidth&
" Test leadmultispace and lead and space
normal ggdG
set listchars=eol:$ " Accommodate Nvim default
set listchars+=lead:<,space:-
set listchars+=leadmultispace:.-+*
set list
call append(0, [
\ ' ffff ',
\ ' i i gg',
\ ' h ',
\ ' j ',
\ ' 0 0 ',
\ ])
let expected = [
\ '.-+*ffff----$',
\ '.-i-i-----gg$',
\ '<h----------$',
\ '.-+*.-+*.-j-$',
\ '.-+*0--0----$',
\ '$'
\ ]
call assert_equal('eol:$,lead:<,space:-,leadmultispace:.-+*', &listchars)
call Check_listchars(expected, 6)
call Check_listchars(expected, 5, -1, 1)
call Check_listchars(expected, 5, -1, 2)
call Check_listchars(expected, 5, -1, 3)
call Check_listchars(expected, 5, -1, 6)
call assert_equal(expected, split(execute("%list"), "\n"))
" the last occurrence of 'multispace:' is used
set listchars=eol:$ " Accommodate Nvim default
set listchars+=multispace:yYzZ
set listchars+=space:x,multispace:XyY
let expected = [
\ 'XyYXffffXyYX$',
\ 'XyixiXyYXygg$',
\ 'xhXyYXyYXyYX$',
\ 'XyYXyYXyYXjx$',
\ 'XyYX0Xy0XyYX$',
\ '$'
\ ]
call assert_equal('eol:$,multispace:yYzZ,space:x,multispace:XyY', &listchars)
call Check_listchars(expected, 6)
call Check_listchars(expected, 5, -1, 6)
call assert_equal(expected, split(execute("%list"), "\n"))
set listchars+=lead:>,trail:<
let expected = [
\ '>>>>ffff<<<<$',
\ '>>ixiXyYXygg$',
\ '>h<<<<<<<<<<$',
\ '>>>>>>>>>>j<$',
\ '>>>>0Xy0<<<<$',
\ '$'
\ ]
call Check_listchars(expected, 6)
call Check_listchars(expected, 5, -1, 6)
call assert_equal(expected, split(execute("%list"), "\n"))
" removing 'multispace:'
set listchars-=multispace:XyY
set listchars-=multispace:yYzZ
let expected = [
\ '>>>>ffff<<<<$',
\ '>>ixixxxxxgg$',
\ '>h<<<<<<<<<<$',
\ '>>>>>>>>>>j<$',
\ '>>>>0xx0<<<<$',
\ '$'
\ ]
call Check_listchars(expected, 6)
call Check_listchars(expected, 5, -1, 6)
call assert_equal(expected, split(execute("%list"), "\n"))
" test nbsp
normal ggdG
set listchars=nbsp:X,trail:Y
set list
" Non-breaking space
let nbsp = nr2char(0xa0)
call append(0, [ ">" .. nbsp .. "<" ])
let expected = '>X< '
call Check_listchars([expected], 1)
set listchars=nbsp:X
call Check_listchars([expected], 1)
" test extends
normal ggdG
set listchars=extends:Z
set nowrap
set nolist
call append(0, [ repeat('A', &columns + 1) ])
let expected = repeat('A', &columns)
call Check_listchars([expected], 1, &columns)
set list
let expected = expected[:-2] . 'Z'
call Check_listchars([expected], 1, &columns)
enew!
set listchars& ff&
endfunc
" Test that unicode listchars characters get properly inserted
func Test_listchars_unicode()
enew!
let oldencoding=&encoding
set encoding=utf-8
set ff=unix
set listchars=eol:⇔,space:␣,multispace:≡≢≣,nbsp:≠,tab:←↔→
set list
let nbsp = nr2char(0xa0)
call append(0, [" a\tb c" .. nbsp .. "d "])
let expected = ['≡≢≣≡≢≣≡≢a←↔↔↔↔↔→b␣c≠d≡≢⇔']
call Check_listchars(expected, 1)
call Check_listchars(expected, 1, -1, 3)
call Check_listchars(expected, 1, -1, 13)
set listchars=eol:\\u21d4,space:\\u2423,multispace:≡\\u2262\\U00002263,nbsp:\\U00002260,tab:←↔\\u2192
call Check_listchars(expected, 1)
call Check_listchars(expected, 1, -1, 3)
call Check_listchars(expected, 1, -1, 13)
set listchars+=lead:⇨,trail:⇦
let expected = ['⇨⇨⇨⇨⇨⇨⇨⇨a←↔↔↔↔↔→b␣c≠d⇦⇦⇔']
call Check_listchars(expected, 1)
call Check_listchars(expected, 1, -1, 3)
call Check_listchars(expected, 1, -1, 13)
let &encoding=oldencoding
enew!
set listchars& ff&
endfunction
func Test_listchars_invalid()
enew!
set ff=unix
set listchars=eol:$ " Accommodate Nvim default
set list
set ambiwidth=double
" No colon
call assert_fails('set listchars=x', 'E474:')
call assert_fails('set listchars=x', 'E474:')
call assert_fails('set listchars=multispace', 'E474:')
call assert_fails('set listchars=leadmultispace', 'E474:')
" Too short
call assert_fails('set listchars=space:', 'E474:')
call assert_fails('set listchars=tab:x', 'E474:')
call assert_fails('set listchars=multispace:', 'E474:')
call assert_fails('set listchars=leadmultispace:', 'E474:')
" One occurrence too short
call assert_fails('set listchars=space:,space:x', 'E474:')
call assert_fails('set listchars=space:x,space:', 'E474:')
call assert_fails('set listchars=tab:x,tab:xx', 'E474:')
call assert_fails('set listchars=tab:xx,tab:x', 'E474:')
call assert_fails('set listchars=multispace:,multispace:x', 'E474:')
call assert_fails('set listchars=multispace:x,multispace:', 'E474:')
call assert_fails('set listchars=leadmultispace:,leadmultispace:x', 'E474:')
call assert_fails('set listchars=leadmultispace:x,leadmultispace:', 'E474:')
" Too long
call assert_fails('set listchars=space:xx', 'E474:')
call assert_fails('set listchars=tab:xxxx', 'E474:')
" Has double-width character
call assert_fails('set listchars=space:·', 'E474:')
call assert_fails('set listchars=tab:·x', 'E474:')
call assert_fails('set listchars=tab:x·', 'E474:')
call assert_fails('set listchars=tab:xx·', 'E474:')
call assert_fails('set listchars=multispace:·', 'E474:')
call assert_fails('set listchars=multispace:xxx·', 'E474:')
call assert_fails('set listchars=leadmultispace:·', 'E474:')
call assert_fails('set listchars=leadmultispace:xxx·', 'E474:')
" Has control character
call assert_fails("set listchars=space:\x01", 'E474:')
call assert_fails("set listchars=tab:\x01x", 'E474:')
call assert_fails("set listchars=tab:x\x01", 'E474:')
call assert_fails("set listchars=tab:xx\x01", 'E474:')
call assert_fails("set listchars=multispace:\x01", 'E474:')
call assert_fails("set listchars=multispace:xxx\x01", 'E474:')
call assert_fails('set listchars=space:\\x01', 'E474:')
call assert_fails('set listchars=tab:\\x01x', 'E474:')
call assert_fails('set listchars=tab:x\\x01', 'E474:')
call assert_fails('set listchars=tab:xx\\x01', 'E474:')
call assert_fails('set listchars=multispace:\\x01', 'E474:')
call assert_fails('set listchars=multispace:xxx\\x01', 'E474:')
call assert_fails("set listchars=leadmultispace:\x01", 'E474:')
call assert_fails('set listchars=leadmultispace:\\x01', 'E474:')
call assert_fails("set listchars=leadmultispace:xxx\x01", 'E474:')
call assert_fails('set listchars=leadmultispace:xxx\\x01', 'E474:')
enew!
set ambiwidth& listchars& ff&
endfunction
" Tests that space characters following composing character won't get replaced
" by listchars.
func Test_listchars_composing()
enew!
let oldencoding=&encoding
set encoding=utf-8
set ff=unix
set list
set listchars=eol:$,space:_,nbsp:=
let nbsp1 = nr2char(0xa0)
let nbsp2 = nr2char(0x202f)
call append(0, [
\ " \u3099\t \u309A" .. nbsp1 .. nbsp1 .. "\u0302" .. nbsp2 .. nbsp2 .. "\u0302",
\ ])
let expected = [
\ "_ \u3099^I \u309A=" .. nbsp1 .. "\u0302=" .. nbsp2 .. "\u0302$"
\ ]
call Check_listchars(expected, 1)
let &encoding=oldencoding
enew!
set listchars& ff&
endfunction
" Check for the value of the 'listchars' option
func s:CheckListCharsValue(expected)
call assert_equal(a:expected, &listchars)
call assert_equal(a:expected, getwinvar(0, '&listchars'))
endfunc
" Test for using a window local value for 'listchars'
func Test_listchars_window_local()
%bw!
set list listchars&
let nvim_default = &listchars " Accommodate Nvim default
new
" set a local value for 'listchars'
setlocal listchars=tab:+-,eol:#
call s:CheckListCharsValue('tab:+-,eol:#')
" When local value is reset, global value should be used
setlocal listchars=
call s:CheckListCharsValue(nvim_default)
" Use 'setlocal <' to copy global value
setlocal listchars=space:.,extends:>
setlocal listchars<
call s:CheckListCharsValue(nvim_default)
" Use 'set <' to copy global value
setlocal listchars=space:.,extends:>
set listchars<
call s:CheckListCharsValue(nvim_default)
" Changing global setting should not change the local setting
setlocal listchars=space:.,extends:>
setglobal listchars=tab:+-,eol:#
call s:CheckListCharsValue('space:.,extends:>')
" when split opening a new window, local value should be copied
split
call s:CheckListCharsValue('space:.,extends:>')
" clearing local value in one window should not change the other window
set listchars&
call s:CheckListCharsValue(nvim_default)
close
call s:CheckListCharsValue('space:.,extends:>')
" use different values for 'listchars' items in two different windows
call setline(1, ["\t one two "])
setlocal listchars=tab:<->,lead:_,space:.,trail:@,eol:#
split
setlocal listchars=tab:[.],lead:#,space:_,trail:.,eol:&
split
set listchars=tab:+-+,lead:^,space:>,trail:<,eol:%
call assert_equal(['+------+^^one>>two<<%'], ScreenLines(1, virtcol('$')))
close
call assert_equal(['[......]##one__two..&'], ScreenLines(1, virtcol('$')))
close
call assert_equal(['<------>__one..two@@#'], ScreenLines(1, virtcol('$')))
" changing the global setting should not change the local value
setglobal listchars=tab:[.],lead:#,space:_,trail:.,eol:&
call assert_equal(['<------>__one..two@@#'], ScreenLines(1, virtcol('$')))
set listchars<
call assert_equal(['[......]##one__two..&'], ScreenLines(1, virtcol('$')))
" Using setglobal in a window with local setting should not affect the
" window. But should impact other windows using the global setting.
enew! | only
call setline(1, ["\t one two "])
set listchars=tab:[.],lead:#,space:_,trail:.,eol:&
split
setlocal listchars=tab:+-+,lead:^,space:>,trail:<,eol:%
split
setlocal listchars=tab:<->,lead:_,space:.,trail:@,eol:#
setglobal listchars=tab:{.},lead:-,space:=,trail:#,eol:$
call assert_equal(['<------>__one..two@@#'], ScreenLines(1, virtcol('$')))
close
call assert_equal(['+------+^^one>>two<<%'], ScreenLines(1, virtcol('$')))
close
call assert_equal(['{......}--one==two##$'], ScreenLines(1, virtcol('$')))
" Setting the global setting to the default value should not impact a window
" using a local setting.
split
setlocal listchars=tab:<->,lead:_,space:.,trail:@,eol:#
setglobal listchars=eol:$ " Accommodate Nvim default
call assert_equal(['<------>__one..two@@#'], ScreenLines(1, virtcol('$')))
close
call assert_equal(['^I one two $'], ScreenLines(1, virtcol('$')))
" Setting the local setting to the default value should not impact a window
" using a global setting.
set listchars=tab:{.},lead:-,space:=,trail:#,eol:$
split
setlocal listchars=tab:<->,lead:_,space:.,trail:@,eol:#
call assert_equal(['<------>__one..two@@#'], ScreenLines(1, virtcol('$')))
setlocal listchars=eol:$ " Accommodate Nvim default
call assert_equal(['^I one two $'], ScreenLines(1, virtcol('$')))
close
call assert_equal(['{......}--one==two##$'], ScreenLines(1, virtcol('$')))
" Using set in a window with a local setting should change it to use the
" global setting and also impact other windows using the global setting.
split
setlocal listchars=tab:<->,lead:_,space:.,trail:@,eol:#
call assert_equal(['<------>__one..two@@#'], ScreenLines(1, virtcol('$')))
set listchars=tab:+-+,lead:^,space:>,trail:<,eol:%
call assert_equal(['+------+^^one>>two<<%'], ScreenLines(1, virtcol('$')))
close
call assert_equal(['+------+^^one>>two<<%'], ScreenLines(1, virtcol('$')))
" Setting invalid value for a local setting should not impact the local and
" global settings.
split
setlocal listchars=tab:<->,lead:_,space:.,trail:@,eol:#
let cmd = 'setlocal listchars=tab:{.},lead:-,space:=,trail:#,eol:$,x'
call assert_fails(cmd, 'E474:')
call assert_equal(['<------>__one..two@@#'], ScreenLines(1, virtcol('$')))
close
call assert_equal(['+------+^^one>>two<<%'], ScreenLines(1, virtcol('$')))
" Setting invalid value for a global setting should not impact the local and
" global settings.
split
setlocal listchars=tab:<->,lead:_,space:.,trail:@,eol:#
let cmd = 'setglobal listchars=tab:{.},lead:-,space:=,trail:#,eol:$,x'
call assert_fails(cmd, 'E474:')
call assert_equal(['<------>__one..two@@#'], ScreenLines(1, virtcol('$')))
close
call assert_equal(['+------+^^one>>two<<%'], ScreenLines(1, virtcol('$')))
" Closing window with local lcs-multispace should not cause a memory leak.
setlocal listchars=multispace:---+
split
call s:CheckListCharsValue('multispace:---+')
close
%bw!
set list& listchars&
endfunc
func Test_listchars_foldcolumn()
CheckScreendump
let lines =<< trim END
call setline(1, ['aaa', '', 'a', 'aaaaaa'])
vsplit
vsplit
windo set signcolumn=yes foldcolumn=1 winminwidth=0 nowrap list listchars=extends:>,precedes:<
END
call writefile(lines, 'XTest_listchars')
let buf = RunVimInTerminal('-S XTest_listchars', {'rows': 10, 'cols': 60})
call term_sendkeys(buf, "13\<C-W>>")
call VerifyScreenDump(buf, 'Test_listchars_01', {})
call term_sendkeys(buf, "\<C-W>>")
call VerifyScreenDump(buf, 'Test_listchars_02', {})
call term_sendkeys(buf, "\<C-W>>")
call VerifyScreenDump(buf, 'Test_listchars_03', {})
call term_sendkeys(buf, "\<C-W>>")
call VerifyScreenDump(buf, 'Test_listchars_04', {})
call term_sendkeys(buf, "\<C-W>>")
call VerifyScreenDump(buf, 'Test_listchars_05', {})
call term_sendkeys(buf, "\<C-W>h")
call term_sendkeys(buf, ":set nowrap foldcolumn=4\<CR>")
call term_sendkeys(buf, "15\<C-W><")
call VerifyScreenDump(buf, 'Test_listchars_06', {})
call term_sendkeys(buf, "4\<C-W><")
call VerifyScreenDump(buf, 'Test_listchars_07', {})
" clean up
call StopVimInTerminal(buf)
call delete('XTest_listchars')
endfunc
" vim: shiftwidth=2 sts=2 expandtab
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