Don't activate if a 3rd-party venv is activated over ours #57

	name: tests
	on: [pull_request, push]
	jobs:
	tests:
	strategy:
	fail-fast: false
	matrix:
	os:
	- ubuntu-22.04
	- ubuntu-20.04
	- macos-12
	- macos-11
	runs-on: ${{ matrix.os }}
	steps:
	- uses: actions/checkout@v2
	# Normally, we would use the superbly maintained...
	# - uses: actions/setup-python@v2
	# with:
	# python-version: ${{ matrix.python-version }}
	# ... but in the repo, we want to test pyenv builds on Ubuntu
	# - run: \|
	# sudo apt-get install -y build-essential libssl-dev zlib1g-dev libbz2-dev \
	# libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev \
	# xz-utils tk-dev libffi-dev liblzma-dev python-openssl git
	# https://github.com/pyenv/pyenv#installation
	#- env:
	# PYENV_ROOT: /home/runner/work/pyenv/pyenv
	# run: \|
	# echo $PYENV_ROOT
	# echo "$PYENV_ROOT/shims:$PYENV_ROOT/bin" >> $GITHUB_PATH
	# macos-11 Github Actions env has an old `readlink` and lacks `greadlink` which causes Bats to break
	- run: \|
	if [[ $RUNNER_OS == "macOS" ]] && [[ $(sw_vers -productVersion \| awk -F. '{print $1}') -lt 12 ]]; then
	brew install coreutils
	fi
	- run: git clone https://github.com/bats-core/bats-core.git --depth=1 -b v1.2.0 bats
	- run: bats/bin/bats --tap test

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