feat(presets): reworks code

src/ArchPresets/Strict.php

@@ -4,6 +4,9 @@ declare(strict_types=1);
 
 namespace Pest\ArchPresets;
 
+use Pest\Arch\Contracts\ArchExpectation;
+use Pest\Expectation;
+
 /**
  * @internal
  */
@@ -14,14 +17,15 @@ final class Strict extends AbstractPreset
      */
     public function execute(): void
     {
+        $this->eachUserNamespace(
+            fn (Expectation $namespace): ArchExpectation => $namespace->toUseStrictTypes(),
+            fn (Expectation $namespace): ArchExpectation => $namespace->classes()->toBeFinal(),
+            fn (Expectation $namespace): ArchExpectation => $namespace->classes()->not->toBeAbstract(),
+        );
+
         $this->expectations[] = expect([
             'sleep',
             'usleep',
         ])->not->toBeUsed();
-
-        foreach ($this->userNamespaces as $namespace) {
-            $this->expectations[] = expect($namespace)
-                ->toUseStrictTypes();
-        }
     }
 }