patch 8.1.0777: Win32: using pipes for channel does not work well commit https://github.com/vim/vim/commit/b091f30bf38eacb31b9d8c97c82c7e0af9866301 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jan 19 14:37:00 2019 +0100 patch 8.1.0777: Win32: using pipes for channel does not work well Problem: Win32: using pipes for channel does not work well. Solution: Use a larger buffer and handle overlaps. (Yasuhiro Matsumoto, closes #3782)

" Test feedkeys() function.

func Test_feedkeys_x_with_empty_string()
  new
  call feedkeys("ifoo\<Esc>")
  call assert_equal('', getline('.'))
  call feedkeys('', 'x')
  call assert_equal('foo', getline('.'))

  " check it goes back to normal mode immediately.
  call feedkeys('i', 'x')
  call assert_equal('foo', getline('.'))
  quit!
endfunc