Tests

fixed all the tests so that the parameter classes are initialized onl… #21

	### Running pytest

	# setting up testing: <https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python#testing-your-code>
	# setting up compiler: <https://github.com/marketplace/actions/setup-c-c-compiler>

	name: Tests
	on: [push]

	jobs:
	build:
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest, macos-latest]
	python-version: ["3.9", "3.10", "3.11", "3.12"]
	mpi: ["mpich", "openmpi"]

	steps:
	- uses: actions/[email protected]
	with:
	submodules: true

	- name: Install MPI ${{ matrix.mpi }}
	uses: mpi4py/setup-mpi@v1
	with:
	mpi: ${{ matrix.mpi }}

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/[email protected]
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install BrahMap
	run: \|
	python -m pip install --upgrade pip
	CC=mpic++ python3 -m pip install .

	- name: Test BrahMap with pytest
	run: \|
	if [ "${{ matrix.mpi }}" = "mpich" ]; then
	preload=`mpichversion \| sed -n 's/.--libdir=$[^ ]$.*/\1/p'`/libmpi.so
	elif [ "${{ matrix.mpi }}" = "openmpi" ]; then
	preload=`mpicxx --showme:libdirs`/libmpi_cxx.so
	fi
	for nprocs in 1 2 5 7 ; do
	LD_PRELOAD=$preload mpiexec -n $nprocs pytest
	done

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