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-- Tests for storing global variables in the .shada file

local helpers = require('test.functional.helpers')(after_each)
local lfs = require('lfs')
local clear, execute, eq, neq, eval, wait, spawn =
  helpers.clear, helpers.execute, helpers.eq, helpers.neq, helpers.eval,
  helpers.wait, helpers.spawn

describe('storing global variables in ShaDa files', function()
  local tempname = 'Xtest-functional-legacy-074'
  setup(function()
    clear()
    os.remove(tempname)
  end)

  it('is working', function()
    local nvim2 = spawn({helpers.nvim_prog, '-u', 'NONE',
                                 '-i', 'Xviminfo', '--embed'})
    helpers.set_session(nvim2)

    local test_dict = {foo = 1, bar = 0, longvarible = 1000}
    local test_list = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
      17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34,
      35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52,
      53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70,
      71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88,
      89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100}

    execute(
      -- This will cause a few errors, do it silently.
      'set visualbell',
      'set shada+=!',
      "let MY_GLOBAL_DICT={'foo': 1, 'bar': 0, 'longvarible': 1000}",
      -- Store a really long list. Initially this was testing line wrapping in 
      -- viminfo, but shada files has no line wrapping, no matter how long the 
      -- list is.
      'let MY_GLOBAL_LIST=range(1,100)'
    )
    eq(test_dict, eval('MY_GLOBAL_DICT'))
    eq(test_list, eval('MY_GLOBAL_LIST'))

    execute('wsh! ' .. tempname)
    wait()

    -- Assert that the shada file exists.
    neq(nil, lfs.attributes(tempname))
    execute('unlet MY_GLOBAL_DICT',
            'unlet MY_GLOBAL_LIST')
    -- Assert that the variables where deleted.
    eq(0, eval('exists("MY_GLOBAL_DICT")'))
    eq(0, eval('exists("MY_GLOBAL_LIST")'))

    execute('rsh! ' .. tempname)

    eq(test_list, eval('MY_GLOBAL_LIST'))
    eq(test_dict, eval('MY_GLOBAL_DICT'))
  end)

  teardown(function()
    os.remove(tempname)
  end)
end)