neovim

Neovim text editor
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103_visual_mode_reset_spec.lua (1234B)

      1 -- Test for visual mode not being reset causing E315 error.
      2 
      3 local n = require('test.functional.testnvim')()
      4 
      5 local feed, source = n.feed, n.source
      6 local clear, expect = n.clear, n.expect
      7 
      8 describe('E315 error', function()
      9  setup(clear)
     10 
     11  it('is working', function()
     12    -- At this point there is no visual selection because :call reset it.
     13    -- Let's restore the selection:
     14    source([[
     15      let g:msg="Everything's fine."
     16      function! TriggerTheProblem()
     17          normal gv
     18          '<,'>del _
     19          try
     20              exe "normal \<Esc>"
     21          catch /^Vim\%((\a\+)\)\=:E315/
     22              echom 'Snap! E315 error!'
     23              let g:msg='Snap! E315 error!'
     24          endtry
     25      endfunction
     26      enew
     27      enew
     28      setl buftype=nofile
     29      call append(line('$'), 'Delete this line.')
     30    ]])
     31 
     32    -- NOTE: this has to be done by a call to a function because executing
     33    -- :del the ex-way will require the colon operator which resets the
     34    -- visual mode thus preventing the problem:
     35    feed('GV:call TriggerTheProblem()<cr>')
     36 
     37    source([[
     38      %del _
     39      call append(line('$'), g:msg)
     40      brewind
     41    ]])
     42 
     43    -- Assert buffer contents.
     44    expect([[
     45 
     46      Everything's fine.]])
     47  end)
     48 end)