commit https://github.com/vim/vim/commit/e74e8e7d758e9312165a931f176185f07a64231a Author: Bram Moolenaar <Bram@vim.org> Date: Tue Feb 16 22:01:30 2016 +0100 patch 7.4.1342 Problem: On Mac OS/X the waittime must be > 0 for connect to work. Solution: Use select() in a different way. (partly by Kazunobu Kuriyama) Always use a waittime of 1 or more.

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