patch 8.0.0925: MS-Windows GUI: channel I/O not handled right away commit https://github.com/vim/vim/commit/62426e168ef29fb941d1bd91a112fa09445322a5 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Aug 13 15:37:58 2017 +0200 patch 8.0.0925: MS-Windows GUI: channel I/O not handled right away Problem: MS-Windows GUI: channel I/O not handled right away. Solution: Don't call process_message() unless a message is available. (Yasuhiro Matsumoto, closes #1969)

" Settings for test script execution
" Always use "sh", don't use the value of "$SHELL".
set shell=sh

" Only when the +eval feature is present. 
if 1
  " While some tests overwrite $HOME to prevent them from polluting user files,
  " we need to remember the original value so that we can tell external systems
  " where to ask about their own user settings.
  let g:tester_HOME = $HOME
endif

source setup.vim