Tests

Properly handle scalar tensors #127

	name: Tests

	on:
	push:
	branches:
	- main
	pull_request:

	env:
	CARGO_TERM_COLOR: always

	jobs:
	test:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	toolchain:
	- "1.74"
	- stable
	- nightly
	steps:
	- uses: actions/checkout@v5

	- name: Setup toolchain
	run: rustup update ${{ matrix.toolchain }} && rustup default ${{ matrix.toolchain }}

	- name: Setup sccache-cache
	uses: mozilla-actions/sccache-action@v0.0.9

	# MSRV backfill: pyo3 0.28 requires rustc >=1.83 and pyo3 0.27 is
	# the last line with MSRV 1.74. dlpk accepts `>=0.27, <0.29`, so we
	# pin the pyo3 stack to the 0.27 line for the 1.74 job only. Stable
	# and nightly resolve to 0.28 naturally.
	- name: Pin pyo3 to 0.27 on MSRV toolchain
	if: matrix.toolchain == '1.74'
	run: \|
	cargo update -p pyo3 --precise 0.27.2
	cargo update -p pyo3-build-config --precise 0.27.2
	cargo update -p pyo3-macros --precise 0.27.2
	cargo update -p pyo3-macros-backend --precise 0.27.2
	cargo update -p pyo3-ffi --precise 0.27.2

	- name: Run tests
	env:
	SCCACHE_GHA_ENABLED: "true"
	RUSTC_WRAPPER: "sccache"
	run: \|
	pip install numpy
	cargo test --all-features

	miri:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v5

	- name: Setup toolchain
	run: \|
	rustup update nightly && rustup default nightly
	rustup component add miri

	- name: Run tests under miri
	run: cargo miri test --all-features

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