patch 8.0.0361: GUI initialisation is not sufficiently tested commit https://github.com/vim/vim/commit/8be2fbb6705dfb41d06d688701803d206c968404 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Feb 23 19:32:47 2017 +0100 patch 8.0.0361: GUI initialisation is not sufficiently tested Problem: GUI initialisation is not sufficiently tested. Solution: Add the gui_init test. (Kazuki Kuriyama)

" Common preparations for running tests.

" Make sure 'runtimepath' and 'packpath' does not include $HOME.
set rtp=$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after
if has('packages')
  let &packpath = &rtp
endif

" Only when the +eval feature is present. 
if 1
  " Make sure $HOME does not get read or written.
  let $HOME = '/does/not/exist'
endif