commit https://github.com/vim/vim/commit/9fe885e49ade94e6277db0dd18a5bbc1c94c60c4 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Mar 8 16:06:55 2016 +0100 patch 7.4.1515 Problem: Channel test is a bit flaky. Solution: Instead of a fixed sleep time wait until an expression evaluates to true.

1 a aa abb abbcc
2 d dd dee deeff
3 g gg ghh ghhii
4 j jj jkk jkkll
5 m mm mnn mnnoo
6 x aa$ x
7 (a)(b) abba
8 axx ab]xx
9 foobar
9 foo