Test

Update CI/CD to use pixi and parallel testing; also moving to Python 3.11-3.13 #920

	name: Test

	on:
	push:
	branches: [main]
	tags: ["v"] # Push events to matching v, i.e. v1.0, v20.15.10
	pull_request:
	branches: ["*"]

	jobs:
	test:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	env: ["dev-py310", "dev"]

	steps:
	- uses: actions/checkout@v4

	# Cache rattler's shared package cache (speeds up downloads)
	- name: Restore rattler cache
	uses: actions/cache@v4
	with:
	path: ~/.cache/rattler
	key: rattler-${{ runner.os }}-${{ matrix.env }}-${{ hashFiles('pyproject.toml') }}
	restore-keys: \|
	rattler-${{ runner.os }}-${{ matrix.env }}-
	rattler-${{ runner.os }}-

	# Install pixi and the requested environment
	- uses: prefix-dev/setup-pixi@v0.9.0
	with:
	environments: ${{ matrix.env }}
	# No lock committed ⇒ let it resolve fresh each run
	locked: false
	cache: false # disable lock-based env cache
	activate-environment: ${{ matrix.env }}

	- name: Show versions
	run: \|
	python --version
	pixi --version

	- name: Run tests
	env:
	MPLBACKEND: agg
	DISPLAY: ":42"
	run: \|
	pytest -v --cov --color=yes --cov-report=xml

	- name: Archive figures generated during testing
	if: always()
	uses: actions/upload-artifact@v4
	with:
	name: visual_test_results_${{ matrix.os }}-python${{ matrix.python }}
	path: /home/runner/work/spatialdata-plot/spatialdata-plot/tests/figures/*

	- name: Upload coverage to Codecov
	uses: codecov/codecov-action@v4
	with:
	name: coverage
	verbose: true
	env:
	CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

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