patch 8.0.0375: the "+ register is not tested commit https://github.com/vim/vim/commit/5074a0e0333eaa6a9f697eb765124ca0e244c89b Author: Bram Moolenaar <Bram@vim.org> Date: Sun Feb 26 15:08:21 2017 +0100 patch 8.0.0375: the "+ register is not tested Problem: The "+ register is not tested. Solution: Add a test using another Vim instance to change the "+ register. (Kazuki Kuriyama)

Tests for complicated + argument to :edit command

STARTTEST
:$-1w! Xfile1
:$w! Xfile2
:edit +1|s/|/PIPE/|w Xfile1| e Xfile2|1 | s/\//SLASH/|w
:w! test.out
:e Xfile1
:w >> test.out
:qa!
ENDTEST

The result should be in Xfile1: "fooPIPEbar", in Xfile2: "fooSLASHbar"
foo|bar
foo/bar