path: root/test/functional/options/defaults_spec.lua

--
-- Tests for default options and environment decisions.
--
-- See editor/defaults_spec.lua for default autocmds, mappings, commands, and menus.
--

local t = require('test.testutil')
local n = require('test.functional.testnvim')()
local Screen = require('test.functional.ui.screen')

local describe, it, before_each, after_each, finally =
  t.describe, t.it, t.before_each, t.after_each, t.finally
local assert_alive = n.assert_alive
local assert_log = t.assert_log
local pcall_err = t.pcall_err
local api = n.api
local command = n.command
local clear = n.clear
local eval = n.eval
local eq = t.eq
local ok = t.ok
local fn = n.fn
local insert = n.insert
local neq = t.neq
local mkdir = t.mkdir
local rmdir = n.rmdir
local tbl_contains = vim.tbl_contains
local expect_exit = n.expect_exit
local check_close = n.check_close
local is_os = t.is_os

local testlog = 'Xtest-defaults-log'

describe('startup defaults', function()
  it("NVIM_NOTTYFAST=1 unsets 'ttyfast'", function()
    clear { env = { NVIM_NOTTYFAST = '1' } }
    eq(0, n.eval('&ttyfast'))
  end)

  describe(':filetype', function()
    local function expect_filetype(expected)
      local screen = Screen.new(50, 4)
      command('filetype')
      screen:expect([[
        ^                                                  |
        {1:~                                                 }|*2
        ]] .. expected)
    end

    it('all ON after `-u NORC`', function()
      clear('-u', 'NORC')
      expect_filetype('filetype detection:ON  plugin:ON  indent:ON       |')
    end)

    it('all ON after `:syntax …` #7765', function()
      clear('-u', 'NORC', '--cmd', 'syntax on')
      expect_filetype('filetype detection:ON  plugin:ON  indent:ON       |')
      clear('-u', 'NORC', '--cmd', 'syntax off')
      expect_filetype('filetype detection:ON  plugin:ON  indent:ON       |')
    end)

    it('all OFF after `-u NONE`', function()
      clear('-u', 'NONE')
      expect_filetype('filetype detection:OFF  plugin:OFF  indent:OFF    |')
    end)

    it('explicit OFF stays OFF', function()
      clear('-u', 'NORC', '--cmd', 'syntax off | filetype off | filetype plugin indent off')
      expect_filetype('filetype detection:OFF  plugin:OFF  indent:OFF    |')
      clear('-u', 'NORC', '--cmd', 'syntax off | filetype plugin indent off')
      expect_filetype('filetype detection:ON  plugin:OFF  indent:OFF     |')
      clear('-u', 'NORC', '--cmd', 'filetype indent off')
      expect_filetype('filetype detection:ON  plugin:ON  indent:OFF      |')
      clear('-u', 'NORC', '--cmd', 'syntax off | filetype off')
      expect_filetype('filetype detection:OFF  plugin:(on)  indent:(on)  |')
      -- Swap the order.
      clear('-u', 'NORC', '--cmd', 'filetype off | syntax off')
      expect_filetype('filetype detection:OFF  plugin:(on)  indent:(on)  |')
    end)

    it('all ON after early `:filetype … on`', function()
      -- `:filetype … on` should not change the defaults. #7765
      -- Only an explicit `:filetype … off` sets OFF.

      clear('-u', 'NORC', '--cmd', 'filetype on')
      expect_filetype('filetype detection:ON  plugin:ON  indent:ON       |')
      clear('-u', 'NORC', '--cmd', 'filetype plugin on')
      expect_filetype('filetype detection:ON  plugin:ON  indent:ON       |')
      clear('-u', 'NORC', '--cmd', 'filetype indent on')
      expect_filetype('filetype detection:ON  plugin:ON  indent:ON       |')
    end)

    it('late `:filetype … off` stays OFF', function()
      clear('-u', 'NORC', '-c', 'filetype off')
      expect_filetype('filetype detection:OFF  plugin:(on)  indent:(on)  |')
      clear('-u', 'NORC', '-c', 'filetype plugin off')
      expect_filetype('filetype detection:ON  plugin:OFF  indent:ON      |')
      clear('-u', 'NORC', '-c', 'filetype indent off')
      expect_filetype('filetype detection:ON  plugin:ON  indent:OFF      |')
    end)
  end)

  describe('syntax', function()
    it('enabled by `-u NORC`', function()
      clear('-u', 'NORC')
      eq(1, eval('g:syntax_on'))
    end)

    it('disabled by `-u NONE`', function()
      clear('-u', 'NONE')
      eq(0, eval('exists("g:syntax_on")'))
    end)

    it('`:syntax off` stays off', function()
      -- early
      clear('-u', 'NORC', '--cmd', 'syntax off')
      eq(0, eval('exists("g:syntax_on")'))
      -- late
      clear('-u', 'NORC', '-c', 'syntax off')
      eq(0, eval('exists("g:syntax_on")'))
    end)

    it('":if 0|syntax on|endif" does not affect default #8728', function()
      clear('-u', 'NORC', '--cmd', ':if 0|syntax on|endif')
      eq(1, eval('exists("g:syntax_on")'))
      clear('-u', 'NORC', '--cmd', ':if 0|syntax off|endif')
      eq(1, eval('exists("g:syntax_on")'))
    end)
  end)

  describe("'fillchars'", function()
    it('vert/fold flags', function()
      clear()
      local screen = Screen.new(50, 5)
      command('set laststatus=0')