patch 8.0.1378: autoload script sources itself when defining function commit https://github.com/vim/vim/commit/3388d334572f9d65a603d09d75e363805d96c5d9 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Dec 7 22:23:04 2017 +0100 patch 8.0.1378: autoload script sources itself when defining function Problem: Autoload script sources itself when defining function. Solution: Pass TFN_NO_AUTOLOAD to trans_function_name(). (Yasuhiro Matsumoto, closes #2423)

" Test 'autochdir' behavior

if !exists("+autochdir")
  finish
endif

func Test_set_filename()
  let cwd = getcwd()
  call test_autochdir()
  set acd
  new
  w samples/Xtest
  call assert_equal("Xtest", expand('%'))
  call assert_equal("samples", substitute(getcwd(), '.*/\(\k*\)', '\1', ''))
  bwipe!
  set noacd
  exe 'cd ' . cwd
  call delete('samples/Xtest')
endfunc