Merge branch '4.2'

* 4.2:
  [serializer] validate that the specified callbacks and max_depth_handler are actually callable
  [Serializer] Respect ignored attributes in cache key of normalizer
  fix resetting the COLUMN environment variable
  Fix TestRunner compatibility to PhpUnit 8
  Fix dark themed componnents
  prevent mixup of the object to populate

Author: fabpot

Legacy/CommandForV5.php

@@ -23,6 +23,24 @@ class CommandForV5 extends \PHPUnit_TextUI_Command
      */
     protected function createRunner()
     {
-        return new TestRunnerForV5($this->arguments['loader']);
+        $listener = new SymfonyTestsListenerForV5();
+
+        $this->arguments['listeners'] = isset($this->arguments['listeners']) ? $this->arguments['listeners'] : array();
+
+        $registeredLocally = false;
+
+        foreach ($this->arguments['listeners'] as $registeredListener) {
+            if ($registeredListener instanceof SymfonyTestsListenerForV5) {
+                $registeredListener->globalListenerDisabled();
+                $registeredLocally = true;
+                break;
+            }
+        }
+
+        if (!$registeredLocally) {
+            $this->arguments['listeners'][] = $listener;
+        }
+
+        return parent::createRunner();
     }
 }

Legacy/CommandForV6.php

@@ -13,7 +13,7 @@
 
 use PHPUnit\TextUI\Command as BaseCommand;
 use PHPUnit\TextUI\TestRunner as BaseRunner;
-use Symfony\Bridge\PhpUnit\TextUI\TestRunner;
+use Symfony\Bridge\PhpUnit\SymfonyTestsListener;
 
 /**
  * {@inheritdoc}
@@ -27,6 +27,24 @@ class CommandForV6 extends BaseCommand
      */
     protected function createRunner(): BaseRunner
     {
-        return new TestRunner($this->arguments['loader']);
+        $listener = new SymfonyTestsListener();
+
+        $this->arguments['listeners'] = isset($this->arguments['listeners']) ? $this->arguments['listeners'] : [];
+
+        $registeredLocally = false;
+
+        foreach ($this->arguments['listeners'] as $registeredListener) {
+            if ($registeredListener instanceof SymfonyTestsListener) {
+                $registeredListener->globalListenerDisabled();
+                $registeredLocally = true;
+                break;
+            }
+        }
+
+        if (!$registeredLocally) {
+            $this->arguments['listeners'][] = $listener;
+        }
+
+        return parent::createRunner();
     }
 }