commit https://github.com/vim/vim/commit/d424747d5821c2873e24d25d3407d08b25ea3443 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Nov 2 13:28:59 2015 +0100 patch 7.4.905 Problem: Python interface can produce error "vim.message' object has no attribute 'isatty'". Solution: Add dummy isatty(), readable(), etc. (closes #464)

Test for Bufleave autocommand that deletes the buffer we are about to edit.

STARTTEST
:so small.vim
:au BufLeave test9.in bwipe yy
:e yy
:/^start of/,$w! test.out      " Write contents of this file
:qa!
ENDTEST

start of test file xx
end of test file xx