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path: root/test/functional/shada/history_spec.lua
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-- ShaDa history saving/reading support
local helpers = require('test.functional.helpers')
local nvim, nvim_command, nvim_eval, nvim_feed, eq =
  helpers.nvim, helpers.command, helpers.eval, helpers.feed, helpers.eq

local shada_helpers = require('test.functional.shada.helpers')
local reset, set_additional_cmd, clear =
  shada_helpers.reset, shada_helpers.set_additional_cmd,
  shada_helpers.clear

describe('ShaDa support code', function()
  before_each(reset)
  after_each(clear)

  it('is able to dump and read back command-line history', function()
    nvim_command('set viminfo=\'0')
    nvim_feed(':" Test\n')
    nvim_command('wviminfo')
    reset()
    nvim_command('set viminfo=\'0')
    nvim_command('rviminfo')
    eq('" Test', nvim_eval('histget(":", -1)'))
  end)

  it('is able to dump and read back 2 items in command-line history', function()
    nvim_command('set viminfo=\'0 history=2')
    nvim_feed(':" Test\n')
    nvim_feed(':" Test 2\n')
    nvim_command('qall')
    reset()
    nvim_command('set viminfo=\'0 history=2')
    nvim_command('rviminfo')
    eq('" Test 2', nvim_eval('histget(":", -1)'))
    eq('" Test', nvim_eval('histget(":", -2)'))
    nvim_command('qall')
  end)

  it('respects &history when dumping',
  function()
    nvim_command('set viminfo=\'0 history=1')
    nvim_feed(':" Test\n')
    nvim_feed(':" Test 2\n')
    nvim_command('wviminfo')
    reset()
    nvim_command('set viminfo=\'0 history=2')
    nvim_command('rviminfo')
    eq('" Test 2', nvim_eval('histget(":", -1)'))
    eq('', nvim_eval('histget(":", -2)'))
  end)

  it('respects &history when loading',
  function()
    nvim_command('set viminfo=\'0 history=2')
    nvim_feed(':" Test\n')
    nvim_feed(':" Test 2\n')
    nvim_command('wviminfo')
    reset()
    nvim_command('set viminfo=\'0 history=1')
    nvim_command('rviminfo')
    eq('" Test 2', nvim_eval('histget(":", -1)'))
    eq('', nvim_eval('histget(":", -2)'))
  end)

  it('dumps only requested amount of command-line history items', function()
    nvim_command('set viminfo=\'0,:1')
    nvim_feed(':" Test\n')
    nvim_feed(':" Test 2\n')
    nvim_command('wviminfo')
    reset()
    nvim_command('set viminfo=\'0')
    nvim_command('rviminfo')
    eq('" Test 2', nvim_eval('histget(":", -1)'))
    eq('', nvim_eval('histget(":", -2)'))
  end)

  it('does not respect number in &viminfo when loading history', function()
    nvim_command('set viminfo=\'0')
    nvim_feed(':" Test\n')
    nvim_feed(':" Test 2\n')
    nvim_command('wviminfo')
    reset()
    nvim_command('set viminfo=\'0,:1')
    nvim_command('rviminfo')
    eq('" Test 2', nvim_eval('histget(":", -1)'))
    eq('" Test', nvim_eval('histget(":", -2)'))
  end)

  it('dumps and loads all kinds of histories', function()
    nvim_command('debuggreedy')
    nvim_feed(':debug echo "Test"\n" Test 2\nc\n')  -- Debug history.
    nvim_feed(':call input("")\nTest 2\n')  -- Input history.
    nvim_feed('"="Test"\nyy')  -- Expression history.
    nvim_feed('/Test\n')  -- Search history
    nvim_feed(':" Test\n')  -- Command-line history
    nvim_command('0debuggreedy')
    nvim_command('wviminfo')
    reset()
    nvim_command('rviminfo')
    eq('" Test', nvim_eval('histget(":", -1)'))
    eq('Test', nvim_eval('histget("/", -1)'))
    eq('"Test"', nvim_eval('histget("=", -1)'))
    eq('Test 2', nvim_eval('histget("@", -1)'))
    eq('c', nvim_eval('histget(">", -1)'))
  end)

  it('dumps and loads last search pattern with offset', function()
    nvim_eval('setline(".", ["foo", "bar"])')
    nvim_feed('gg0/a/e+1\n')
    eq({0, 2, 3, 0}, nvim_eval('getpos(".")'))
    nvim_command('wviminfo')
    reset()
    nvim_eval('setline(".", ["foo", "bar"])')
    nvim_feed('gg0n')
    eq({0, 2, 3, 0}, nvim_eval('getpos(".")'))
  end)

  it('dumps and loads last substitute pattern and replacement string', function()
    nvim_eval('setline(".", ["foo", "bar"])')
    nvim_command('%s/f/g/g')
    eq('goo', nvim_eval('getline(1)'))
    nvim_command('wviminfo')
    reset()
    nvim_eval('setline(".", ["foo", "bar"])')
    nvim_command('&')
    eq('goo', nvim_eval('getline(1)'))
  end)
end)