Migrate tests to GitHub actions #4

	# This workflow uses actions that are not certified by GitHub.
	# They are provided by a third-party and are governed by
	# separate terms of service, privacy policy, and support
	# documentation.
	# This workflow will download a prebuilt Ruby version, install dependencies and run tests with Rake
	# For more information see: https://github.com/marketplace/actions/setup-ruby-jruby-and-truffleruby

	name: CI

	on:
	push:
	branches: [ "master" ]
	pull_request:
	branches: [ "master" ]

	permissions:
	contents: read

	jobs:
	test:
	name: "test on ${{ matrix.os }} ; ${{ matrix.neovim && 'neovim' \|\| 'vim' }}"

	strategy:
	matrix:
	# Testing doesn't seem to work on Windows: output log file
	# cannot be read...
	# os: [ubuntu-latest, macos-latest, windows-latest]
	os: [ubuntu-latest, macos-latest]
	neovim: [false, true]
	# TODO: Test different flavours of Vim...

	runs-on: ${{ matrix.os }}

	steps:
	- uses: actions/checkout@v4
	- name: Set up Ruby
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: 3.0
	bundler-cache: true # runs 'bundle install' and caches installed gems automatically
	- name: Setup Vim
	uses: rhysd/action-setup-vim@v1
	# uses: thinca/action-setup-vim@v2
	id: vim
	with:
	neovim: ${{matrix.neovim }}
	configure-args: \|
	--with-features=huge

	- name: Run tests on Linux
	if: runner.os == 'Linux' # headless execution is required on Linux
	run: \|
	bundle list
	xvfb-run bundle exec rake ci
	- name: Run tests on ${{ matrix.os }}
	if: runner.os != 'Linux'
	run: \|
	bundle exec rake ci

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