bug symfony#30085 Fix TestRunner compatibility to PhpUnit 8 (alexander-schranz)

This PR was squashed before being merged into the 3.4 branch (closes symfony#30085).

Discussion
----------

Fix TestRunner compatibility to PhpUnit 8

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | related to: symfony#30055
| License       | MIT
| Doc PR        | -

Modify the installed phpunit version to be compatibility with the symfony custom TestRunner. This is sure not the best way but maybe currently the fastest way to support PhpUnit 8. The hack should be removed as soon as there is another way to implement a custom Runner.

Commits
-------

a0c66a3 Fix TestRunner compatibility to PhpUnit 8

Author: nicolas-grekas

src/Symfony/Bridge/PhpUnit/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();
     }
 }

src/Symfony/Bridge/PhpUnit/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();
     }
 }