Explicitly mark parameter as nullable #68

	name: "unit tests"

	on: ["pull_request", "push"]

	jobs:
	unit-tests:
	name: "unit tests"

	runs-on: ${{ matrix.operating-system }}

	env:
	COMPOSER_ROOT_VERSION: 'dev-main'
	SYMFONY_DEPRECATIONS_HELPER: max[self]=0

	strategy:
	matrix:
	dependencies:
	- "lowest"
	- "highest"
	php-version:
	- "7.1"
	- "7.2"
	- "7.3"
	- "7.4"
	- "8.0"
	- "8.1"
	- "8.2"
	- "8.3"
	operating-system:
	- "ubuntu-latest"

	steps:
	- name: "checkout"
	uses: "actions/checkout@v4"

	- name: "installing PHP"
	uses: "shivammathur/setup-php@v2"
	with:
	php-version: "${{ matrix.php-version }}"
	ini-values: memory_limit=-1
	tools: composer:v2, cs2pr

	- name: "caching dependencies"
	uses: "actions/cache@v3"
	with:
	path: \|
	~/.composer/cache
	vendor
	key: "php-${{ matrix.php-version }}-${{ matrix.operating-system }}"
	restore-keys: "php-${{ matrix.php-version }}-${{ matrix.operating-system }}"

	- name: "removing symfony/ux-turbo on PHP 7.1"
	if: ${{ matrix.php-version == '7.1' }}
	run: "composer remove symfony/ux-turbo --no-update --dev"

	- name: "installing lowest dependencies"
	if: ${{ matrix.dependencies == 'lowest' }}
	run: "composer update --prefer-lowest --no-interaction --no-progress"

	- name: "installing highest dependencies"
	if: ${{ matrix.dependencies == 'highest' }}
	run: "composer update --no-interaction --no-progress"

	- name: "installing PHPUnit"
	run: "php vendor/bin/simple-phpunit install"

	- name: "running unit tests"
	run: "php vendor/bin/simple-phpunit"

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