add create_covmat method #6

	name: Tests

	on:
	push:
	branches:
	- master
	pull_request:
	types: [opened, reopened, synchronize]

	jobs:
	tests:
	runs-on: ${{ matrix.os }}
	timeout-minutes: 30
	strategy:
	matrix:
	os: [ubuntu-latest, macos-latest]
	python: [3.9, 3.11]
	exclude:
	- os: macos-latest
	python: 3.9
	- os: ubuntu-latest
	python: 3.11

	steps:
	- name: Checkout
	uses: actions/checkout@v2

	- name: Setup Python
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python }}

	- name: Install poetry
	run: python -m pip install poetry==1.8.2

	- name: Install sbm dependencies
	run: \|
	poetry export --without-hashes -o requirements.txt
	pip install --upgrade pip
	pip install -r requirements.txt

	- name: Install sbm
	run: poetry install

	- name: Test
	run: poetry run pytest -vv

Provide feedback