patch 8.0.1801: MS-Windows: redirecting terminal output does not work commit https://github.com/vim/vim/commit/f25329cb94e481999e8b08d886cc0f0169e2020c Author: Bram Moolenaar <Bram@vim.org> Date: Sun May 6 21:49:32 2018 +0200 patch 8.0.1801: MS-Windows: redirecting terminal output does not work Problem: MS-Windows: redirecting terminal output does not work. Solution: Intercept the text written to the terminal and write it to the file.

" 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