commit https://github.com/vim/vim/commit/562ca7142845273bca656aa5aeeda90f001062e0 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Mar 9 21:50:05 2016 +0100 patch 7.4.1527 Problem: Channel test is flaky on MS-Windows. Solution: Limit the select() timeout to 50 msec and try with a new socket if it fails.

start:
test for empty string: ok
test for 1 char: ok
test for 3 chars: ok
test for contains meta char: ok
test for contains non-ascii char: ok