test

Improve scorecard #3

	name: test
	on: [push, pull_request]
	permissions: read-all
	jobs:
	unittest:
	name: unittest
	runs-on: ubuntu-latest
	steps:
	# checkout source code
	- uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2

	# install dependencies
	- run: pip install -r requirements.txt

	# install pytest-cov
	- run: pip install pytest-cov==v6.0.0

	# run unittest and covertest
	- run: pytest -v --cov=.

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