Merge pull request #4 from ilyaberd/ilya/php8

preg_split deprecated change, tests name changes

Author: balexander

composer.json

@@ -28,6 +28,6 @@
         "phpunit/phpunit": "^9.2"
     },
     "scripts": {
-        "test": "vendor/bin/phpunit test"
+        "test": "vendor/bin/phpunit tests"
     }
 }