Add iso element on hexahedron #919

	name: Basix CI on MacOS

	# This workflow will install Python dependencies, run tests and lint
	# with a single version of Python For more information see:
	# https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

	on:
	pull_request:
	branches:
	- main
	push:
	tags:
	- "v*"
	branches:
	- main

	jobs:
	build:
	name: Build and test (MacOS)
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [macos-12]

	steps:
	- uses: actions/checkout@v3
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: "3.10"
	- name: Install dependencies (non-Python)
	run: brew install ninja

	- name: Install Basix
	run: \|
	python -m pip -v install .[test]

	- name: Run units tests
	run: \|
	python -m pip install pytest-xdist
	python -m pytest -n auto --durations 20 test/

	- name: Run python demos
	run: python -m pytest demo/python/test.py

	- name: Run C++ demos
	run: \|
	python -m pytest demo/cpp/test.py

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