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File: //home/ubuntu/neovim/test/functional/vimscript/getline_spec.lua
local t = require('test.testutil')
local n = require('test.functional.testnvim')()

local call = n.call
local clear = n.clear
local eq = t.eq
local expect = n.expect

describe('getline()', function()
  before_each(function()
    clear()
    call('setline', 1, { 'a', 'b', 'c' })
    expect([[
      a
      b
      c]])
  end)

  it('returns empty string for invalid line', function()
    eq('', call('getline', -1))
    eq('', call('getline', 0))
    eq('', call('getline', 4))
  end)

  it('returns empty list for invalid range', function()
    eq({}, call('getline', 2, 1))
    eq({}, call('getline', -1, 1))
    eq({}, call('getline', 4, 4))
  end)

  it('returns value of valid line', function()
    eq('b', call('getline', 2))
    eq('a', call('getline', '.'))
  end)

  it('returns value of valid range', function()
    eq({ 'a', 'b' }, call('getline', 1, 2))
    eq({ 'a', 'b', 'c' }, call('getline', 1, 4))
  end)
end)