Fix mac tests with conda #6577

	name: macos basic tests

	on: [push, pull_request]

	concurrency:
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.ref }}
	cancel-in-progress: true

	jobs:
	build:
	runs-on: ${{ matrix.os }}
	strategy:
	max-parallel: 4
	matrix:
	os: [macos-latest]
	python-version:
	- '3.10'
	- '3.11'
	- '3.12'

	# this is needed for conda environments to activate automatically
	defaults:
	run:
	shell: bash -el {0}

	steps:
	- uses: actions/checkout@v1

	- name: Cache conda packages
	uses: actions/cache@v4
	env:
	# increment to reset cache
	CACHE_NUMBER: 0
	with:
	path: ~/conda_pkgs_dir
	key: ${{ runner.os }}-conda-${{ matrix.python-version}}-${{ env.CACHE_NUMBER }}

	- name: Configure conda
	uses: conda-incubator/setup-miniconda@v3
	with:
	activate-environment: test
	channels: conda-forge
	miniforge-version: latest
	python-version: ${{ matrix.python-version }}

	- name: Conda info
	run: conda info --all

	- name: Install tox
	run: \|
	conda install \
	pip \
	setuptools \
	"tox<4.0.0"

	- name: Run basic pycbc test suite
	run: \|
	tox -e py-unittest

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