patch 8.1.0334: 'autowrite' takes effect when buffer is not to be written commit https://github.com/vim/vim/commit/8c9e7b00f6566dc41e794ef11c93d93b034c7134 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Aug 30 13:07:17 2018 +0200 patch 8.1.0334: 'autowrite' takes effect when buffer is not to be written Problem: 'autowrite' takes effect when buffer is not to be written. Solution: Don't write buffers that are not supposed to be written. (Even Q Jones, closes #3391) Add tests for 'autowrite'.

" 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