commit https://github.com/vim/vim/commit/821179809d9b0f65177360b53584be2b4039dd46 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Aug 27 19:21:48 2016 +0200 patch 7.4.2270 Problem: Insufficient testing for NUL bytes on a raw channel. Solution: Add a test for writing and reading.

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