patch 8.2.3271: Vim9: cannot use :command or :au with block in :def function Commit: https://github.com/vim/vim/commit/e4db17fb6e2d029aa2dddfca703ace9bcf0d85fd Author: Bram Moolenaar <Bram@vim.org> Date: Sun Aug 1 21:19:43 2021 +0200 patch 8.2.3271: Vim9: cannot use :command or :au with block in :def function Problem: Vim9: cannot use :command or :au with a block in a :def function. Solution: Recognize the start of the block.

" 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