Enables C++ tests on Windows #58

	name: Windows
	on:
	workflow_dispatch:
	pull_request:
	push:
	branches: [master]
	concurrency:
	group: ${{ github.workflow }}-${{ github.job }}-${{ github.ref }}
	cancel-in-progress: true
	defaults:
	run:
	#shell: msys2 {0}
	shell: bash -e -l {0}
	jobs:
	build:
	runs-on: [windows-latest]
	name: MINGW64

	steps:

	- name: Checkout code
	uses: actions/checkout@v3

	- name: Set conda environment
	uses: mamba-org/setup-micromamba@v2
	with:
	environment-file: environment-dev.yml
	cache-environment: false

	- name: Install gcc_win-64
	run: micromamba install gxx_win-64 -c conda-forge

	- name: Configure using CMake
	run: \|
	cmake -Bbuild \
	-DXTENSOR_INSTALL_R_PACKAGES=OFF \
	-G "MinGW Makefiles" \
	-DCMAKE_INSTALL_PREFIX=$CONDA_PREFIX \
	-DDOWNLOAD_GTEST=ON \
	$(Build.SourcesDirectory)

	- name: Install
	working-directory: build
	run: cmake --install .

	- name: Build
	working-directory: build
	run: cmake --build . --target test_xtensor_r --parallel 8

	# TODO: fix the test on Windows
	- name: Run tests (C++)
	working-directory: build/test
	run: ./test_xtensor_r

Provide feedback