Implement iterator interface for node collection #48

# to view logs

	name: PHP tests

	on:
	push:
	branches: [master]
	pull_request:

	jobs:
	tests:
	runs-on: ubuntu-latest

	strategy:
	fail-fast: true
	matrix:
	php:
	- 8.1

	name: PHP ${{ matrix.php }}

	steps:
	- name: Code checkout
	uses: actions/checkout@v2

	- name: Cache dependencies
	uses: actions/cache@v2
	with:
	path: ~/.composer/cache/files
	key: data-mapper-php${{ matrix.php }}

	- name: Setup PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: ${{ matrix.php }}

	- name: Install dependencies
	run: composer install --no-interaction --prefer-dist --no-suggest

	- name: Run CodeSniffer
	run: ./vendor/bin/phpcs -p

	- name: Run PHPStan
	run: ./vendor/bin/phpstan analyse --no-progress

	- name: Run PHPUnit
	run: ./vendor/bin/phpunit

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