Update `pipes`'s docstring #71

	name: test-vm
	# run tests in a VM via vagrant
	# GHA doesn't support freebsd, but we can test there

	on:
	pull_request:
	push:
	branches:
	- "main"

	jobs:
	test:
	# ref: https://github.com/jonashackt/vagrant-github-actions
	# MIT License
	runs-on: macos-10.15

	strategy:
	fail-fast: true
	matrix:
	box:
	- freebsd
	steps:
	- uses: actions/checkout@v2

	- name: Cache Vagrant boxes
	uses: actions/cache@v2
	with:
	path: ~/.vagrant.d/boxes
	key: ${{ runner.os }}-vagrant-${{ hashFiles('Vagrantfile') }}
	restore-keys: \|
	${{ runner.os }}-vagrant-

	- name: Show Vagrant version
	run: vagrant --version

	- name: Run vagrant up
	run: vagrant up ${{ matrix.box }}

	- name: install dependencies
	run: \|
	vagrant ssh ${{ matrix.box }} -c "
	cd /vagrant
	pip install --upgrade pip
	pip install --upgrade --pre -r dev-requirements.txt .
	pip freeze
	"

	- name: Run tests
	run: \|
	vagrant ssh ${{ matrix.box }} -c "
	cd /vagrant
	pytest -v --color=yes --cov=wurlitzer test.py
	"

	- name: Submit codecov report
	run: \|
	vagrant ssh ${{ matrix.box }} -c "
	cd /vagrant
	codecov
	"

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