Tests

the residual pl IET function was not formulated correctly.... #259

	name: Tests
	on: [push, pull_request]

	jobs:
	build:
	name: Tests on ${{ matrix.os }}
	runs-on: ${{ matrix.os }}

	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-24.04, windows-2022, macos-14]

	steps:
	- name: Install Pre-requisits on ubuntu
	if: ${{ startsWith(matrix.os, 'ubuntu') }}
	run: \|
	sudo apt-get -qy update
	sudo apt-get install g++ ninja-build cmake
	ninja --version
	cmake --version
	g++ --version

	- name: Install dependencies on windows
	if: ${{ startsWith(matrix.os, 'windows') }}
	run: \|
	choco install ninja cmake
	cmake --version

	- name: select Xcode version
	if: ${{ startsWith(matrix.os, 'macos') }}
	run: \|
	sudo xcode-select -s "/Applications/Xcode_14.3.app"

	- uses: actions/checkout@v4

	- name: cmake build
	run: \|
	mkdir build
	cmake -Bbuild -S.
	cmake --build build/ --target reticula_tests -j 2 --verbose

	- name: Run tests
	working-directory: build
	run: ctest -C Debug --output-on-failure -j 2

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