path: root/test/functional/viml/completion_spec.lua

local helpers = require('test.functional.helpers')(after_each)
local Screen = require('test.functional.ui.screen')
local clear, feed = helpers.clear, helpers.feed
local eval, eq, neq = helpers.eval, helpers.eq, helpers.neq
local feed_command, source, expect = helpers.feed_command, helpers.source, helpers.expect
local curbufmeths = helpers.curbufmeths
local command = helpers.command
local meths = helpers.meths
local wait = helpers.wait

describe('completion', function()
  local screen

  before_each(function()
    clear()
    screen = Screen.new(60, 8)
    screen:attach()
    screen:set_default_attr_ids({
      [0] = {bold=true, foreground=Screen.colors.Blue},
      [1] = {background = Screen.colors.LightMagenta},
      [2] = {background = Screen.colors.Grey},
      [3] = {bold = true},
      [4] = {bold = true, foreground = Screen.colors.SeaGreen},
      [5] = {foreground = Screen.colors.Red},
      [6] = {background = Screen.colors.Black},
      [7] = {foreground = Screen.colors.White, background = Screen.colors.Red},
      [8] = {reverse = true},
      [9] = {bold = true, reverse = true},
    })
  end)

  describe('v:completed_item', function()
    it('is empty dict until completion', function()
      eq({}, eval('v:completed_item'))
    end)
    it('is empty dict if the candidate is not inserted', function()
      feed('ifoo<ESC>o<C-x><C-n>')
      screen:expect([[
        foo                                                         |
        foo^                                                         |
        {0:~                                                           }|
        {0:~                                                           }|
        {0:~                                                           }|
        {0:~                                                           }|
        {0:~                                                           }|
        {3:-- Keyword Local completion (^N^P) The only match}           |
      ]])
      feed('<C-e>')
      screen:expect([[
        foo                                                         |
        ^                                                            |
        {0:~                                                           }|
        {0:~                                                           }|
        {0:~                                                           }|
        {0:~                                                           }|
        {0:~                                                           }|
        {3:-- INSERT --}                                                |
      ]])
      feed('<ESC>')
      eq({}, eval('v:completed_item'))
    end)
    it('returns expected dict in normal completion', function()
      feed('ifoo<ESC>o<C-x><C-n>')
      eq('foo', eval('getline(2)'))
      eq({word = 'foo', abbr = '', menu = '',
          info = '', kind = '', user_data = ''},
        eval('v:completed_item'))
    end)
    it('is readonly', function()
      screen:try_resize(80, 8)
      feed('ifoo<ESC>o<C-x><C-n><ESC>')
      feed_command('let v:completed_item.word = "bar"')
      neq(nil, string.find(eval('v:errmsg'), '^E46: '))
      feed_command('let v:errmsg = ""')

      feed_command('let v:completed_item.abbr = "bar"')
      neq(nil, string.find(eval('v:errmsg'), '^E46: '))
      feed_command('let v:errmsg = ""')

      feed_command('let v:completed_item.menu = "bar"')
      neq(nil, string.find(eval('v:errmsg'), '^E46: '))
      feed_command('let v:errmsg = ""')

      feed_command('let v:completed_item.info = "bar"')
      neq(nil, string.find(eval('v:errmsg'), '^E46: '))
      feed_command('let v:errmsg = ""')

      feed_command('let v:completed_item.kind = "bar"')
      neq(nil, string.find(eval('v:errmsg'), '^E46: '))
      feed_command('let v:errmsg = ""')

      feed_command('let v:completed_item.user_data = "bar"')
      neq(nil, string.find(eval('v:errmsg'), '^E46: '))
      feed_command('let v:errmsg = ""')
    end)
    it('returns expected dict in omni completion', function()
      source([[
      function! TestOmni(findstart, base) abort
        return a:findstart ? 0 : [{'word': 'foo', 'abbr': 'bar',
        \ 'menu': 'baz', 'info': 'foobar', 'kind': 'foobaz'},
        \ {'word': 'word', 'abbr': 'abbr', 'menu': 'menu',
        \  'info': 'info', 'kind': 'kind'}]
      endfunction
      setlocal omnifunc=TestOmni
      ]])
      feed('i<C-x><C-o>')
      eq('foo', eval('getline(1)'))
      screen:expect([[
        foo^                                                         |
        {2:bar  foobaz baz  }{0:                                           }|
        {1:abbr kind   menu }{0:                                           }|
        {0:~                                                           }|
        {0:~                                                           }|
        {0:~                                                           }|
        {0:~                                                           }|
        {3:-- Omni completion (^O^N^P) }{4:match 1 of 2}                    |
      ]])
      eq({word = 'foo', abbr = 'bar', menu = 'baz',
          info = 'foobar', kind = 'foobaz', user_data = ''},
        eval('v:completed_item'))
    end)
  end)

  describe('completeopt', function()
    before_each(function()
      source([[
      function! TestComplete() abort
        call complete(1, ['foo'])
        return ''
      endfunction
      ]])
    end)

    it('inserts the first candidate if default', function()
      feed_command('set completeopt+=menuone')
      feed('ifoo<ESC>o')
      screen:expect([[
        foo                                                         |
        ^                                                            |
        {0:~                                                           }|
        {0:~