commit https://github.com/vim/vim/commit/b2658a1ab02cd0ba848164f70c7c464fdc398162 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Apr 26 17:16:24 2016 +0200 patch 7.4.1787 Problem: When a job ends the close callback is invoked before other callbacks. On Windows the close callback is not called. Solution: First invoke out/err callbacks before the close callback. Make the close callback work on Windows.

Tests for writefile()

STARTTEST
:source small.vim
:%delete _
:let f = tempname()
:call writefile(["over","written"], f, "b")
:call writefile(["hello","world"], f, "b")
:call writefile(["!", "good"], f, "a")
:call writefile(["morning"], f, "ab")
:call writefile(["", "vimmers"], f, "ab")
:bwipeout!
:$put =readfile(f)
:1 delete _
:w! test.out
:call delete(f)
:qa!
ENDTEST