Add has_validator and has_filter method #121

	name: ci

	on:
	push:
	branches:
	- '*'
	pull_request:
	types:
	- opened
	- synchronize
	- reopened
	branches:
	- 'master'
	schedule:
	- cron: '1 9 * * 0'

	jobs:
	test_unit:
	name: Unit Tests
	runs-on: ubuntu-latest
	strategy:
	matrix:
	include:
	- php: '7.1'
	- php: '7.2'
	- php: '7.3'
	- php: '7.4'
	- php: '8.0'
	- php: '8.1'
	# - php: '8.2'
	steps:
	- name: checkout
	uses: actions/checkout@v3
	- name: Setup PHP Action
	uses: shivammathur/setup-php@v2
	with:
	php-version: ${{ matrix.php }}
	- name: run unit tests
	run: \|
	# create folder for coverage
	mkdir -p build/logs

	# use phpunit9 for php8 and phpunit6 for 7.1 to 7.4
	composer update

	# create a lock file
	composer install

	composer run-script test
	- name: docs healthcheck
	run: \|
	php ci/check_filters_docs.php
	php ci/check_validators_docs.php
	php ci/check_validators_translations.php
	# it is enough to upload the coverage once!
	- name: upload coverage
	if: matrix.php == '7.1'
	env:
	COVERALLS_REPO_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	run: php vendor/bin/php-coveralls --exclude-no-stmt --coverage_clover=build/logs/clover.xml -v

Provide feedback