patch 8.1.0398: no test for -o and -O command line arguments commit https://github.com/vim/vim/commit/8f4499b81612568b4964e8445d86e34e6d644b13 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Sep 16 16:28:11 2018 +0200 patch 8.1.0398: no test for -o and -O command line arguments Problem: No test for -o and -O command line arguments. Solution: Add a test. (Dominique Pelle, closes https://github.com/vim/vim/issues/3438)

" 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