Add type hint and docblock for getResource method in BaseTest

Author: dissto

src/TestRenderers/BaseTest.php

@@ -6,6 +6,7 @@
 use CodeWithDennis\FilamentTests\Concerns\HasFilamentResources;
 use CodeWithDennis\FilamentTests\Concerns\InteractsWithResources;
 use CodeWithDennis\FilamentTests\Concerns\Renderers\CanRenderViews;
+use Filament\Resources\Resource;
 
 abstract class BaseTest implements HasFilamentResources
 {
@@ -27,8 +28,14 @@ public function getResourceClass(): ?string
         return $this->resourceClass;
     }
 
-    public function getResource()
+    /**
+     * @return Resource
+     */
+    public function getResource(): Resource
     {
-        return new ($this->getResourceClass());
+        /** @var class-string<Resource> $resourceClass */
+        $resourceClass = $this->getResourceClass();
+
+        return new $resourceClass();
     }
 }