add set_test_cell_from_index to cell pair assembler #1410

	name: ✨

	on:
	push:
	branches:
	- "**"
	pull_request:
	branches:
	- main
	merge_group:

	jobs:
	style-checks:
	name: Rust style checks
	runs-on: ubuntu-latest
	strategy:
	matrix:
	feature-flags: ['--features "mpi,strict"', '']
	steps:
	- name: Set up Rust
	uses: actions-rust-lang/setup-rust-toolchain@v1
	with:
	toolchain: stable
	components: rustfmt,clippy
	- name: Set up MPI
	uses: mpi4py/setup-mpi@v1
	with:
	mpi: mpich
	- uses: actions/checkout@v3
	- name: Install LAPACK, OpenBLAS
	run:
	sudo apt-get install -y libopenblas-dev liblapack-dev

	- name: Style checks
	run: \|
	cargo fmt -- --check
	cargo clippy ${{ matrix.feature-flags }} -- -D warnings
	cargo clippy --tests ${{ matrix.feature-flags }} -- -D warnings
	cargo clippy --examples ${{ matrix.feature-flags }} -- -D warnings

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