Introducing test suite, linting and CI (#41) #20

	name: CI
	on: [push]
	jobs:
	build-test:
	runs-on: ubuntu-latest
	services:
	mariadb:
	image: mariadb:latest
	ports: ["3306:3306"]
	env:
	MARIADB_USER: test
	MARIADB_PASSWORD: password
	MARIADB_ROOT_PASSWORD: password
	options: --health-cmd="healthcheck.sh --connect --innodb_initialized" --health-interval=10s --health-timeout=5s --health-retries=10
	strategy:
	matrix:
	php-versions: ['8.2', '8.3', '8.4']
	env:
	XDEBUG_MODE: coverage
	extensions: bcmath
	key: cache-v1
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	- name: Setup cache environment
	id: extcache
	uses: shivammathur/cache-extensions@v1
	with:
	php-version: ${{ matrix.php-versions }}
	extensions: ${{ env.extensions }}
	key: ${{ env.key }}
	- name: Cache extensions
	uses: actions/cache@v4
	with:
	path: ${{ steps.extcache.outputs.dir }}
	key: ${{ steps.extcache.outputs.key }}
	restore-keys: ${{ steps.extcache.outputs.key }}
	- name: "Set up PHP ${{ matrix.php-versions }}"
	uses: shivammathur/setup-php@v2
	with:
	php-version: ${{ matrix.php-versions }}
	extensions: bcmath
	coverage: xdebug
	tools: phpcs, phpunit
	- name: Install dependencies
	run: composer install
	- name: Figure out the PSR-4 autoload situation
	run: composer dump-autoload -o --strict-psr
	- name: PHPCS
	run: ./vendor/bin/phpcs ./src/
	- name: PHPUnit
	run: bin/install-wp-tests.sh test root password 127.0.0.1 6.4 && ./vendor/bin/phpunit --testdox --coverage-text --coverage-filter=src

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