patch 8.2.0644: insufficient testing for invalid function arguments Commit: https://github.com/vim/vim/commit/99fa721944dda9d07c53c907c33466728df5c271 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Apr 26 15:59:55 2020 +0200 patch 8.2.0644: insufficient testing for invalid function arguments Problem: Insufficient testing for invalid function arguments. Solution: Add more tests. (Yegappan Lakshmanan, closes https://github.com/vim/vim/issues/5988)

" 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