test.lua

local Helpers = require('test.functional.helpers')
local Screen  = require('test.functional.ui.screen')

local buf         = Helpers.curbufmeths
local command     = Helpers.command
local eq          = Helpers.eq
local execute     = Helpers.execute
local feed        = Helpers.feed
local nvim        = Helpers.nvim
local nvim_prog   = Helpers.nvim_prog
local set_session = Helpers.set_session
local spawn       = Helpers.spawn

local shada_file = 'test.shada'

-- Helpers.clear() uses "-i NONE", which is not useful for this test.
local function clear()
  if session then
    session:exit(0)
  end
  set_session(spawn({nvim_prog,
                     '-u', 'NONE',
                     '--cmd', 'set noswapfile undodir=. directory=. viewdir=. backupdir=.',
                     '--embed'}))
end

describe(':oldfiles', function()
  before_each(clear)

  after_each(function()
    os.remove(shada_file)
  end)

  it('shows most recently used files', function()
    screen = Screen.new(50, 5)
    screen:attach()
    execute('edit testfile1')
    local filename1 = buf.get_name()
    execute('edit testfile2')
    local filename2 = buf.get_name()
    execute('wshada ' .. shada_file)
    execute('rshada! ' .. shada_file)
    execute('oldfiles')
    screen:expect([[
      testfile2                                         |
      1: ]].. filename1 ..[[                    |
      2: ]].. filename2 ..[[                    |
                                                        |
      Press ENTER or type command to continue^           |
    ]])
  end)
end)

describe(':oldfiles!', function()
  local filename

  before_each(function()
    clear()
    execute('edit testfile1')
    execute('edit testfile2')
    filename = buf.get_name()
    execute('wshada ' .. shada_file)
    clear()
    execute('rshada! ' .. shada_file)
    execute('oldfiles!')
  end)

  after_each(function()
    os.remove(shada_file)
  end)

  it('provides a prompt and edits the chosen file', function()
    feed('2<cr>')
    eq(filename, buf.get_name())
  end)

  it('provides a prompt and does nothing on <cr>', function()
    feed('<cr>')
    eq('', buf.get_name())
  end)

  it('provides a prompt and does nothing if choice is out-of-bounds', function()
    feed('3<cr>')
    eq('', buf.get_name())
  end)
end)