patch 8.1.1211: not all user command code is tested commit https://github.com/vim/vim/commit/e61e548dd6a20471fd81160b1c2a16089505ec8c Author: Bram Moolenaar <Bram@vim.org> Date: Sat Apr 27 15:05:12 2019 +0200 patch 8.1.1211: not all user command code is tested Problem: Not all user command code is tested. Solution: Add more tests.

" Settings for test script execution
" Always use "COMMAND.COM", don't use the value of "$SHELL".
set shell=c:\COMMAND.COM shellquote= shellxquote= shellcmdflag=/c shellredir=>
" This is used only when the +eval feature is available.
if executable("cmd.exe")
   set shell=cmd.exe
endif

source setup.vim