diff --git a/tests/unit/Route/RouteCollectionTest.php b/tests/unit/Route/RouteCollectionTest.php
index 64be414..ad26dad 100644
--- a/tests/unit/Route/RouteCollectionTest.php
+++ b/tests/unit/Route/RouteCollectionTest.php
@@ -34,15 +34,24 @@
 use Archict\Router\Method;
 use Archict\Router\RequestHandler;
 use Archict\Router\ResponseFactory;
+use CuyZ\Valinor\Mapper\TreeMapper;
+use CuyZ\Valinor\MapperBuilder;
 use PHPUnit\Framework\TestCase;
 use Psr\Http\Message\ResponseInterface;
 use Psr\Http\Message\ServerRequestInterface;
 
 final class RouteCollectionTest extends TestCase
 {
+    private TreeMapper $mapper;
+
+    protected function setUp(): void
+    {
+        $this->mapper = (new MapperBuilder())->enableFlexibleCasting()->allowSuperfluousKeys()->allowPermissiveTypes()->mapper();
+    }
+
     public function testItCanAddRouteWithRequestHandler(): void
     {
-        $collection = new RouteCollection(new ServiceManager());
+        $collection = new RouteCollection(new ServiceManager($this->mapper));
         self::assertTrue(
             $collection->addRoute(
                 Method::GET,
@@ -59,7 +68,7 @@ public function handle(ServerRequestInterface $request): ResponseInterface // ph
 
     public function testItCanAddRouteWithCallable(): void
     {
-        $collection = new RouteCollection(new ServiceManager());
+        $collection = new RouteCollection(new ServiceManager($this->mapper));
         self::assertTrue(
             $collection->addRoute(Method::GET, 'route', static fn(ServerRequestInterface $request) => ResponseFactory::build()->get()) // phpcs:ignore
         );
@@ -67,7 +76,7 @@ public function testItCanAddRouteWithCallable(): void
 
     public function testItCanAddRouteWithClassname(): void
     {
-        $collection = new RouteCollection(new ServiceManager());
+        $collection = new RouteCollection(new ServiceManager($this->mapper));
         $handler    = new class implements RequestHandler {
             public function handle(ServerRequestInterface $request): ResponseInterface // phpcs:ignore
             {
@@ -79,7 +88,7 @@ public function handle(ServerRequestInterface $request): ResponseInterface // ph
 
     public function testItNotAcceptIfAddTwiceSameRoute(): void
     {
-        $collection = new RouteCollection(new ServiceManager());
+        $collection = new RouteCollection(new ServiceManager($this->mapper));
         self::assertTrue(
             $collection->addRoute(Method::GET, 'route', static fn(ServerRequestInterface $request) => ResponseFactory::build()->get()) // phpcs:ignore
         );
@@ -90,7 +99,7 @@ public function testItNotAcceptIfAddTwiceSameRoute(): void
 
     public function testItAcceptSameRouteDifferentMethod(): void
     {
-        $collection = new RouteCollection(new ServiceManager());
+        $collection = new RouteCollection(new ServiceManager($this->mapper));
         self::assertTrue(
             $collection->addRoute(Method::GET, 'route', static fn(ServerRequestInterface $request) => ResponseFactory::build()->get()) // phpcs:ignore
         );
@@ -101,7 +110,7 @@ public function testItAcceptSameRouteDifferentMethod(): void
 
     public function testItNotAcceptSameRouteWithMethodAll(): void
     {
-        $collection = new RouteCollection(new ServiceManager());
+        $collection = new RouteCollection(new ServiceManager($this->mapper));
         self::assertTrue(
             $collection->addRoute(Method::GET, 'route', static fn(ServerRequestInterface $request) => ResponseFactory::build()->get()) // phpcs:ignore
         );
@@ -112,7 +121,7 @@ public function testItNotAcceptSameRouteWithMethodAll(): void
 
     public function testItNotAcceptSameRouteIfFirstIsMethodAll(): void
     {
-        $collection = new RouteCollection(new ServiceManager());
+        $collection = new RouteCollection(new ServiceManager($this->mapper));
         self::assertTrue(
             $collection->addRoute(Method::ALL, 'route', static fn(ServerRequestInterface $request) => ResponseFactory::build()->get()) // phpcs:ignore
         );
@@ -123,7 +132,7 @@ public function testItNotAcceptSameRouteIfFirstIsMethodAll(): void
 
     public function testItAcceptSeveralRoute(): void
     {
-        $collection = new RouteCollection(new ServiceManager());
+        $collection = new RouteCollection(new ServiceManager($this->mapper));
         self::assertTrue(
             $collection->addRoute(Method::GET, 'route1', static fn(ServerRequestInterface $request) => ResponseFactory::build()->get()) // phpcs:ignore
         );
@@ -137,7 +146,7 @@ public function testItAcceptSeveralRoute(): void
 
     public function testItAcceptSameRouteWithDifferentGroup(): void
     {
-        $collection = new RouteCollection(new ServiceManager());
+        $collection = new RouteCollection(new ServiceManager($this->mapper));
         self::assertTrue(
             $collection->addRoute(Method::GET, '{group:\d+}', static fn(ServerRequestInterface $request) => ResponseFactory::build()->get()) // phpcs:ignore
         );
@@ -148,14 +157,14 @@ public function testItAcceptSameRouteWithDifferentGroup(): void
 
     public function testItThrowIfRouteNotFound(): void
     {
-        $collection = new RouteCollection(new ServiceManager());
+        $collection = new RouteCollection(new ServiceManager($this->mapper));
         self::expectException(NotFoundException::class);
         $collection->getMatchingRoute('', 'GET');
     }
 
     public function testItThrowIfMethodNotAllowed(): void
     {
-        $collection = new RouteCollection(new ServiceManager());
+        $collection = new RouteCollection(new ServiceManager($this->mapper));
         $collection->addRoute(Method::GET, 'route', static fn(ServerRequestInterface $request) => ResponseFactory::build()->get()); // phpcs:ignore
         self::expectException(MethodNotAllowedException::class);
         $collection->getMatchingRoute('route', 'POST');
@@ -163,7 +172,7 @@ public function testItThrowIfMethodNotAllowed(): void
 
     public function testItCanFindMatchingRouteSimple(): void
     {
-        $collection = new RouteCollection(new ServiceManager());
+        $collection = new RouteCollection(new ServiceManager($this->mapper));
         $collection->addRoute(Method::ALL, 'route', static fn(ServerRequestInterface $request) => ResponseFactory::build()->get()); // phpcs:ignore
         $route = $collection->getMatchingRoute('route', 'PATCH');
 
@@ -173,7 +182,7 @@ public function testItCanFindMatchingRouteSimple(): void
 
     public function testItCanFindMatchingRouteWithGroup(): void
     {
-        $collection = new RouteCollection(new ServiceManager());
+        $collection = new RouteCollection(new ServiceManager($this->mapper));
         $collection->addRoute(Method::GET, 'article/{id:\d+}', static fn(ServerRequestInterface $request) => ResponseFactory::build()->get()); // phpcs:ignore
         $route = $collection->getMatchingRoute('article/5', 'GET');
 
@@ -183,28 +192,28 @@ public function testItCanFindMatchingRouteWithGroup(): void
 
     public function testItCanAddMiddlewareWithCallable(): void
     {
-        $collection = new RouteCollection(new ServiceManager());
+        $collection = new RouteCollection(new ServiceManager($this->mapper));
         self::expectNotToPerformAssertions();
         $collection->addMiddleware(Method::GET, 'route', static fn(ServerRequestInterface $request) => $request);
     }
 
     public function testItCanAddMiddlewareWithMiddleware(): void
     {
-        $collection = new RouteCollection(new ServiceManager());
+        $collection = new RouteCollection(new ServiceManager($this->mapper));
         self::expectNotToPerformAssertions();
         $collection->addMiddleware(Method::GET, 'route', new IdentityMiddlewareStub());
     }
 
     public function testItCanAddMiddlewareWithClassname(): void
     {
-        $collection = new RouteCollection(new ServiceManager());
+        $collection = new RouteCollection(new ServiceManager($this->mapper));
         self::expectNotToPerformAssertions();
         $collection->addMiddleware(Method::GET, 'route', IdentityMiddlewareStub::class);
     }
 
     public function testItAcceptMultipleMiddlewareOnSameRoute(): void
     {
-        $collection = new RouteCollection(new ServiceManager());
+        $collection = new RouteCollection(new ServiceManager($this->mapper));
         self::expectNotToPerformAssertions();
         $collection->addMiddleware(Method::GET, 'route', new IdentityMiddlewareStub());
         $collection->addMiddleware(Method::GET, 'route', new IdentityMiddlewareStub());