Bump actions/download-artifact from 2 to 4.1.7 in /.github/workflows #47

	name: CI testing

	on: [push, pull_request]

	jobs:
	training-test:
	runs-on: ${{matrix.os}}
	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest]
	python-version: [3.7]

	timeout-minutes: 90
	steps:
	- uses: actions/checkout@v2

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

	- name: Install black
	run: "pip install black"

	- name: Run black
	run: "black --check --diff ."

	- name: Install dependencies
	run: \|
	pip install -r requirements.lock

	- name: Training test
	shell: bash
	run: \|
	# Launch cartpole experiment and store the last reward of the training
	python muzero.py cartpole '{"training_steps": 7500}' 2>&1 \| tee log.txt

	- name: Archive log artifact
	uses: actions/upload-artifact@v2
	with:
	name: training_test_logs
	path: log.txt

	- name: Retrieve training test log
	uses: actions/[email protected]
	with:
	name: training_test_logs

	- name: Check reward
	shell: bash
	run: \|
	# Retrieve last reward
	BEST_REWARD=$(cat log.txt \| sed -n -E 's/^.reward: ([0-9]+).$/\1/p' \| sort -n \| tail -1)

	# Display best reward
	echo "Best reward of cartpole training: " $BEST_REWARD

	# Validate reward value
	if ((BEST_REWARD < 250)); then
	exit 1
	fi

Provide feedback