path: root/test/functional/shada/merging_spec.lua

-- ShaDa merging data support
local t = require('test.testutil')
local n = require('test.functional.testnvim')()
local t_shada = require('test.functional.shada.testutil')

local nvim_command, fn, eq = n.command, n.fn, t.eq
local exc_exec, exec_capture = n.exc_exec, n.exec_capture
local api = n.api

local reset, clear, get_shada_rw = t_shada.reset, t_shada.clear, t_shada.get_shada_rw
local read_shada_file = t_shada.read_shada_file

local wshada, sdrcmd, shada_fname = get_shada_rw('Xtest-functional-shada-merging.shada')

local mock_file_path = '/a/b/'
if t.is_os('win') then
  mock_file_path = 'C:/a/'
end

describe('ShaDa history merging code', function()
  before_each(reset)
  after_each(function()
    clear()
    os.remove(shada_fname)
  end)

  it('takes item with greater timestamp from Neovim instance when reading', function()
    wshada('\004\001\009\147\000\196\002ab\196\001a')
    eq(0, exc_exec(sdrcmd()))
    wshada('\004\000\009\147\000\196\002ab\196\001b')
    eq(0, exc_exec(sdrcmd()))
    os.remove(shada_fname)
    eq(0, exc_exec('wshada! ' .. shada_fname))
    local found = 0
    for _, v in ipairs(read_shada_file(shada_fname)) do
      if v.type == 4 and v.value[1] == 0 and v.value[2] == 'ab' then
        eq(1, v.timestamp)
        eq('a', v.value[3])
        found = found + 1
      end
    end
    eq(1, found)
  end)

  it('takes item with equal timestamp from Neovim instance when reading', function()
    wshada('\004\000\009\147\000\196\002ab\196\001a')
    eq(0, exc_exec(sdrcmd()))
    wshada('\004\000\009\147\000\196\002ab\196\001b')
    eq(0, exc_exec(sdrcmd()))
    os.remove(shada_fname)
    eq(0, exc_exec('wshada! ' .. shada_fname))
    local found = 0
    for _, v in ipairs(read_shada_file(shada_fname)) do
      if v.type == 4 and v.value[1] == 0 and v.value[2] == 'ab' then
        eq(0, v.timestamp)
        eq('a', v.value[3])
        found = found + 1
      end
    end
    eq(1, found)
  end)

  it('takes item with greater timestamp from ShaDa when reading', function()
    wshada('\004\000\009\147\000\196\002ab\196\001a')
    eq(0, exc_exec(sdrcmd()))
    wshada('\004\001\009\147\000\196\002ab\196\001b')
    eq(0, exc_exec(sdrcmd()))
    os.remove(shada_fname)
    eq(0, exc_exec('wshada! ' .. shada_fname))
    local found = 0
    for _, v in ipairs(read_shada_file(shada_fname)) do
      if v.type == 4 and v.value[1] == 0 and v.value[2] == 'ab' then
        eq(1, v.timestamp)
        eq('b', v.value[3])
        found = found + 1
      end
    end
    eq(1, found)
  end)

  it('takes item with greater timestamp from Neovim instance when writing', function()
    wshada('\004\001\009\147\000\196\002ab\196\001a')
    eq(0, exc_exec(sdrcmd()))
    wshada('\004\000\009\147\000\196\002ab\196\001b')
    eq(0, exc_exec('wshada ' .. shada_fname))
    local found = 0
    for _, v in ipairs(read_shada_file(shada_fname)) do
      if v.type == 4 and v.value[1] == 0 and v.value[2] == 'ab' then
        eq(1, v.timestamp)
        eq('a', v.value[3])
        found = found + 1
      end
    end
    eq(1, found)
  end)

  it('takes item with equal timestamp from Neovim instance when writing', function()
    wshada('\004\000\009\147\000\196\002ab\196\001a')
    eq(0, exc_exec(sdrcmd()))
    wshada('\004\000\009\147\000\196\002ab\196\001b')
    eq(0, exc_exec('wshada ' .. shada_fname))
    local found = 0
    for _, v in ipairs(read_shada_file(shada_fname)) do
      if v.type == 4 and v.value[1] == 0 and v.value[