[COST-4953] Specify operating system for testing purposes. (#507) #1082

	name: Unit Tests

	on:
	pull_request:
	push:
	branches:
	- main

	jobs:
	build:

	runs-on: ubuntu-20.04
	strategy:
	max-parallel: 4
	matrix:
	python-version: [3.8]

	steps:
	- name: Checkout repsository
	uses: actions/checkout@v3.2.0
	with:
	fetch-depth: 0

	- name: Display build environment
	run: printenv

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4.4.0
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install Pipenv
	run: python -m pip install --upgrade pip pipenv

	- name: Cache dependencies
	id: cache-dependencies
	uses: actions/cache@v3.2.2
	with:
	path: \|
	~/.cache/pipenv
	~/.local/share/virtualenvs
	key: ${{ runner.os }}-env-${{ matrix.python-version }}-${{ hashFiles('**/Pipfile.lock') }}-${{ secrets.ACTIONS_CACHE_KEY_UUID }}

	- name: Install dependencies
	if: steps.cache-dependencies.outputs.cache-hit != 'true'
	run: \|
	pipenv install --dev --ignore-pipfile --python ${{ matrix.python-version }}

	- name: Run sanity tests
	run: pipenv run tox -e sanity

	- name: Run unit tests
	run: pipenv run coverage run -m unittest discover ./tests/ -v

	- name: Convert coverage report to XML
	run: pipenv run coverage xml

	- name: Upload coverage to Codecov
	uses: codecov/codecov-action@v4.2.0
	env:
	CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
	with:
	file: ./coverage.xml
	flags: unittests
	name: Python-${{ matrix.python-version}}
	fail_ci_if_error: true
	plugin: pycoverage # Only run one plugin even though we don't want any to run.

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