Higher splitting for Github Actions and Cache venv #6600

	name: Regression tests

	on:
	push:
	branches:
	- master
	- dev
	pull_request:
	branches:
	- master
	workflow_dispatch:

	concurrency:
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.ref }}
	cancel-in-progress: true

	jobs:
	regression_tests:

	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ['3.10']
	group: [1, 2, 3, 4, 5, 6, 7, 8]

	steps:
	- uses: actions/checkout@v4
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}
	- name: Activate virtual environment
	run: \|
	source .venv-${{ matrix.python-version }}/bin/activate
	- name: Set Swap Space
	uses: pierotofy/set-swap-space@master
	with:
	swap-size-gb: 10
	- name: Test with pytest
	run: \|
	pwd
	lscpu
	python -m pytest -v -m regression\
	--durations=0 \
	--cov-report xml:cov.xml \
	--cov-config=setup.cfg \
	--cov=desc/ \
	--mpl \
	--mpl-results-path=mpl_results.html \
	--mpl-generate-summary=html \
	--splits 8 \
	--group ${{ matrix.group }} \
	--splitting-algorithm least_duration \
	--db ./prof.db
	- name: save coverage file and plot comparison results
	if: always()
	uses: actions/upload-artifact@v4
	with:
	name: regression_test_artifact-${{ matrix.python-version }}-${{ matrix.group }}
	path: \|
	./cov.xml
	./mpl_results.html
	./prof.db
	- name: Upload coverage
	id : codecov
	uses: Wandalen/[email protected]
	with:
	action: codecov/codecov-action@v3
	with: \|
	token: ${{ secrets.CODECOV_TOKEN }}
	name: codecov-umbrella
	files: ./cov.xml
	fail_ci_if_error: true
	verbose: true
	attempt_limit: 10
	attempt_delay: 60000 # ms, 1 min

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