listlbr_utf8_spec.lua

-- Test for linebreak and list option in utf-8 mode

local helpers = require('test.functional.helpers')
local clear = helpers.clear
local dedent = helpers.dedent
local eq = helpers.eq
local expect = helpers.expect
local feed = helpers.feed
local nvim = helpers.meths
local source = helpers.source

local function expect_line(line)
  local expected = dedent(line)
  local actual = nvim.get_var('line')
  eq(expected, actual)
end

describe('linebreak', function()

  before_each(function()
    clear()
    
    source([[
      set wildchar=^E
      10new
      vsp
      vert resize 20
      set ts=4 sw=4 sts=4 linebreak sbr=+ wrap
      
      fu! ScreenChar(width, lines)
        let c=''
        for j in range(1,a:lines)
            for i in range(1,a:width)
              let c.=nr2char(screenchar(j, i))
            endfor
            let c.="\n"
        endfor
        return c
      endfu
      
      fu! DoRecordScreen()
        wincmd l
        $put =printf(\"\n%s\", g:test)
        $put =g:line
        wincmd p
      endfu
      ]])
  end)

  it('Test 1: set linebreak + set list + fancy listchars', function()
    source([[
      put =\"\tabcdef hijklmn\tpqrstuvwxyz\u00a01060ABCDEFGHIJKLMNOP \"
      norm! zt
      set linebreak list listchars=nbsp:␣,tab:▕—,trail:ˑ,eol:¶
      redraw!
      let line = ScreenChar(winwidth(0),4)
      ]])

    expect_line([[
      ▕———abcdef          
      +hijklmn▕———        
      +pqrstuvwxyz␣1060ABC
      +DEFGHIJKLMNOPˑ¶    
      ]])
  end)

  it('Test 2: set nolinebreak list', function()
    source([[
      put =\"\tabcdef hijklmn\tpqrstuvwxyz\u00a01060ABCDEFGHIJKLMNOP \"
      norm! zt
      set nolinebreak list listchars=nbsp:␣,tab:▕—,trail:ˑ,eol:¶
      redraw!
      let line=ScreenChar(winwidth(0),4)
      ]])

    expect_line([[
      ▕———abcdef hijklmn▕—
      +pqrstuvwxyz␣1060ABC
      +DEFGHIJKLMNOPˑ¶    
      ~                   
      ]])
  end)

  it('Test 3: set linebreak nolist', function()
    source([[
      $put =\"\t*mask = nil;\"
      $
      norm! zt
      set nolist linebreak
      redraw!
      let line=ScreenChar(winwidth(0),4)
      ]])

    expect_line([[
          *mask = nil;    
      ~                   
      ~                   
      ~                   
      ]])
  end)

  it('Test 4: set linebreak list listchars and concealing', function()
    source([[
      let c_defines=[
      \ '#define ABCDE		1',
      \ '#define ABCDEF		1',
      \ '#define ABCDEFG		1',
      \ '#define ABCDEFGH	1',
      \ '#define MSG_MODE_FILE			1',
      \ '#define MSG_MODE_CONSOLE		2',
      \ '#define MSG_MODE_FILE_AND_CONSOLE	3',
      \ '#define MSG_MODE_FILE_THEN_CONSOLE	4'
      \ ]
      call append('$', c_defines)
      vert resize 40
      $-7
      norm! zt
      set list linebreak listchars=tab:>- cole=1
      syn match Conceal conceal cchar=>'AB\|MSG_MODE'
      redraw!
      let line=ScreenChar(winwidth(0),7)
      ]])

    expect_line([[
      #define ABCDE>-->---1                   
      #define >CDEF>-->---1                   
      #define >CDEFG>->---1                   
      #define >CDEFGH>----1                   
      #define >_FILE>--------->--->---1       
      #define >_CONSOLE>---------->---2       
      #define >_FILE_AND_CONSOLE>---------3   
      ]])
  end)

  it('Test 5: set linebreak list listchars and concealing part2', function()
    source([[
      let c_defines=['bbeeeeee		;	some text']
      call append('$', c_defines)
      vert resize 40
      $
      norm! zt
      set nowrap ts=2 list linebreak listchars=tab:>- cole=2 concealcursor=n
      syn clear
      syn match meaning    /;\s*\zs.*/
      syn match hasword    /^\x\{8}/    contains=word
      syn match word       /\<\x\{8}\>/ contains=beginword,endword contained
      syn match beginword  /\<\x\x/     contained conceal
      syn match endword    /\x\{6}\>/   contained
      hi meaning   guibg=blue
      hi beginword guibg=green
      hi endword   guibg=red
      redraw!
      let line=ScreenChar(winwidth(0),1)
      ]])

    expect_line([[
      eeeeee>--->-;>some text                 
      ]])
  end)

  it('Test 6: Screenattributes for comment', function()
    source([[
      call append('$', ' /*		 and some more */')
      set ft=c ts=7 linebreak list listchars=nbsp:␣,tab:▕—,trail:ˑ,eol:¶
      syntax on
      hi SpecialKey term=underline ctermfg=red guifg=red
      let attr=[]
      nnoremap <expr> GG ":let attr += ['".screenattr(screenrow(),screencol())."']\n"
      $
      norm! zt0
      ]])
    feed('GGlGGlGGlGGlGGlGGlGGlGGlGGlGGl')
    source([[
      if attr[0] != attr[1] && attr[1] != attr[3] && attr[3] != attr[5]
         let line = "Attribut 0 and 1 and 3 and 5 are different!"
      else
         let line = "Not all attributes are different"
      endif
      ]])

    expect_line("Attribut 0 and 1 and 3 and 5 are different!")
  end)

  it('Test 8: set linebreak with visual block mode and v_b_A and so on', function()
    -- Test 8: set linebreak with visual block mode and v_b_A and
    -- selection=exclusive and multibyte char
    source([[
      set cpo&vi linebreak selection=exclusive
      ]])
    feed("Golong line: <Esc>40afoobar <Esc>aTARGETÃ' at end<Esc>")
    source([[
      exe "norm! $3B\<C-v>eAx\<Esc>"
      ]])

    expect(
      "\nlong line: "..
      "foobar foobar foobar foobar foobar foobar foobar foobar foobar foobar "..
      "foobar foobar foobar foobar foobar foobar foobar foobar foobar foobar "..
      "foobar foobar foobar foobar foobar foobar foobar foobar foobar foobar "..
      "foobar foobar foobar foobar foobar foobar foobar foobar foobar foobar "..
      "TARGETÃx' at end"
    )
  end)

  it('Test 9: a multibyte sign and colorcolumn', function()
    source([[
      nnoremap <expr> GG ":let attr += ['".screenattr(screenrow(),screencol())."']\n"
      let attr=[]
      let attr2=[]
      $put =''
      $put ='a b c'
      $put ='a b c'
      set nolinebreak list listchars=eol:¶ cc=3
      sign define foo text=＋
      sign place 1 name=foo line=3 buffer=2
      norm! 2kztj
      let line1=line('.')
      ]])
    feed('0GGlGGlGGlGGl')
    source([[
      let line2=line('.')
      let attr2=attr
      let attr=[]
      ]])
    feed('0GGlGGlGGlGGl')
    source([[
      redraw!
      let line=ScreenChar(winwidth(0),3)
      " expected: attr[2] is different because of colorcolumn
      if attr[0] != attr2[0] || attr[1] != attr2[1] || attr[2] != attr2[2]
        let line.="Screen attributes are different!"
      else
        let line.="Screen attributes are the same!"
      endif
      ]])

    expect_line([[
        ¶                 
      ＋a b c¶            
        a b c¶            
      Screen attributes are the same!]])
  end)
end)