N°9319 increase php min. version to 8.2 (#887)

* Update minimum PHP version to 8.2
* Fix previous wrong resolution of merge conflict

lib/symfony/framework-bundle/Test/KernelTestCase.php

@@ -12,10 +12,12 @@
 namespace Symfony\Bundle\FrameworkBundle\Test;
 
 use PHPUnit\Framework\TestCase;
+use Symfony\Component\Config\Resource\SelfCheckingResourceChecker;
 use Symfony\Component\DependencyInjection\Container;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException;
 use Symfony\Component\Filesystem\Filesystem;
+use Symfony\Component\HttpKernel\Kernel;
 use Symfony\Component\HttpKernel\KernelInterface;
 use Symfony\Contracts\Service\ResetInterface;
 
@@ -38,6 +40,8 @@ abstract class KernelTestCase extends TestCase
 
     protected static $booted = false;
 
+    private static bool $kernelHasBeenRebooted = false;
+
     protected function tearDown(): void
     {
         static::ensureKernelShutdown();
@@ -88,6 +92,7 @@ abstract class KernelTestCase extends TestCase
         // reboot a fresh one.
         if ($kernel->getContainer()->initialized('cache_warmer')) {
             static::ensureKernelShutdown();
+            self::$kernelHasBeenRebooted = true;
 
             $kernel = static::createKernel($options);
             $kernel->boot();
@@ -161,6 +166,20 @@ abstract class KernelTestCase extends TestCase
             static::$kernel->shutdown();
             static::$booted = false;
 
+            if (self::$kernelHasBeenRebooted) {
+                self::$kernelHasBeenRebooted = false;
+                try {
+                    (new \ReflectionProperty(Kernel::class, 'freshCache'))->setValue(null, []);
+                } catch (\ReflectionException) {
+                    // ignore if the property doesn't exist
+                }
+                try {
+                    (new \ReflectionProperty(SelfCheckingResourceChecker::class, 'cache'))->setValue(null, []);
+                } catch (\ReflectionException) {
+                    // ignore if the property doesn't exist
+                }
+            }
+
             if ($container instanceof ResetInterface) {
                 $container->reset();
             }