Add epsilon to avoid underflow #43

	name: continuous-integration

	on: [push, pull_request]

	jobs:
	pre-commit:

	runs-on: ubuntu-latest

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

	- name: Cache python dependencies
	id: cache-pip
	uses: actions/cache@v1
	with:
	path: ~/.cache/pip
	key: pip-pre-commit-${{ hashFiles('**/setup.json') }}
	restore-keys:
	pip-pre-commit-

	- name: Set up Python 3.8
	uses: actions/setup-python@v2
	with:
	python-version: '3.8'

	- name: Install python dependencies
	run:
	pip install -e .[pre-commit,tests]

	- name: Run pre-commit
	run:
	pre-commit run --all-files \|\| ( git status --short ; git diff ; exit 1 )

	tests:

	runs-on: ubuntu-latest

	strategy:
	matrix:
	python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']

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

	- name: Cache python dependencies
	id: cache-pip
	uses: actions/cache@v1
	with:
	path: ~/.cache/pip
	key: pip-pre-commit-${{ hashFiles('**/setup.json') }}
	restore-keys:
	pip-pre-commit-

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

	- name: Install python dependencies
	run: \|
	pip install --upgrade setuptools
	pip install -e .[tests]

	- name: Test with pytest
	run: \|
	pytest -sv tests

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