Run tests on phpUnit 9

Author: SimonFrings

composer.json

@@ -20,7 +20,7 @@
     },
     "require-dev": {
         "clue/hexdump": "0.2.*",
-        "phpunit/phpunit": "^6.0 || ^5.7 || ^4.8.35"
+        "phpunit/phpunit": "^9.0 ||^6.0 || ^5.7 || ^4.8.35"
     },
     "suggest": {
         "ext-sockets": "Requires PHP 5.4+ and the low level socket API for listening on multicast addresses (socket options to send IGMP announcements)"

tests/FunctionalTest.php

@@ -9,7 +9,10 @@ class FunctionalTest extends TestCase
 
     private $address = '224.224.244.244:2244';
 
-    public function setUp()
+    /**
+     * @before
+     */
+    public function setUpMocks()
     {
         $this->loop = React\EventLoop\Factory::create();
         $this->factory = new Factory($this->loop);