patch 8.2.1007: completion doesn't work after ":r ++arg !" Commit: https://github.com/vim/vim/commit/c8cb883015619cfe6db931ac2d6e15b0be5c56ed Author: Bram Moolenaar <Bram@vim.org> Date: Thu Jun 18 21:14:30 2020 +0200 patch 8.2.1007: completion doesn't work after ":r ++arg !" Problem: Completion doesn't work after ":r ++arg !". Solution: Skip over "++arg". (Christian Brabandt, closes https://github.com/vim/vim/issues/6275, closes #6258)

" Test :version Ex command

func Test_version()
  " version should always return the same string.
  let v1 = execute('version')
  let v2 = execute('version')
  call assert_equal(v1, v2)

  call assert_match("^\n\nVIM - Vi IMproved .*", v1)
endfunc