patch 8.1.1362: code and data in tests can be hard to read commit https://github.com/vim/vim/commit/c79745a82faeb5a6058e915ca49a4c69fa60ea01 Author: Bram Moolenaar <Bram@vim.org> Date: Mon May 20 22:12:34 2019 +0200 patch 8.1.1362: code and data in tests can be hard to read Problem: Code and data in tests can be hard to read. Solution: Use the new heredoc style. (Yegappan Lakshmanan, closes https://github.com/vim/vim/issues/4400)

" Tests for :undo

func Test_ex_undo()
  new ex-undo
  setlocal ul=10
  exe "normal ione\n\<Esc>"
  setlocal ul=10
  exe "normal itwo\n\<Esc>"
  setlocal ul=10
  exe "normal ithree\n\<Esc>"
  call assert_equal(4, line('$'))
  undo
  call assert_equal(3, line('$'))
  undo 1
  call assert_equal(2, line('$'))
  undo 0
  call assert_equal(1, line('$'))
  quit!
endfunc