patch 8.1.1420: popup window size only uses first line length commit https://github.com/vim/vim/commit/88c4e1f06905983870175a473683e81312d14c64 Author: Bram Moolenaar <Bram@vim.org> Date: Wed May 29 23:14:28 2019 +0200 patch 8.1.1420: popup window size only uses first line length Problem: Popup window size only uses first line length. Solution: Use the longest line. (Ben Jackson, closes https://github.com/vim/vim/issues/4451) Also deal with wrapping lines.

" 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