feat(live): add TestLiveComponent::actingAs()

Author: kbond

src/LiveComponent/src/Test/TestLiveComponent.php

@@ -14,6 +14,7 @@
 use Symfony\Bundle\FrameworkBundle\KernelBrowser;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
+use Symfony\Component\Security\Core\User\UserInterface;
 use Symfony\UX\LiveComponent\LiveComponentHydrator;
 use Symfony\UX\LiveComponent\Metadata\LiveComponentMetadataFactory;
 use Symfony\UX\TwigComponent\ComponentFactory;
@@ -76,6 +77,16 @@ public function component(): object
         return (new MountedComponent($this->metadata->getName(), $component, $componentAttributes))->getComponent();
     }
 
+    /**
+     * @param UserInterface $user
+     */
+    public function actingAs(object $user, string $firewallContext = 'main'): self
+    {
+        $this->client->loginUser($user, $firewallContext);
+
+        return $this;
+    }
+
     /**
      * @param array<string,mixed> $arguments
      */