Add tests

tests/system/Router/RouteCollectionTest.php

@@ -12,6 +12,7 @@
 namespace CodeIgniter\Router;
 
 use CodeIgniter\Config\Services;
+use CodeIgniter\Exceptions\PageNotFoundException;
 use CodeIgniter\Router\Exceptions\RouterException;
 use CodeIgniter\Test\CIUnitTestCase;
 use Config\Modules;
@@ -1809,4 +1810,32 @@ public function testGetRegisteredControllersDoesNotReturnClosures()
         $expects = [];
         $this->assertSame($expects, $routes);
     }
+
+    public function testSetLocalePattern()
+    {
+        $routes = $this->getCollector();
+        $routes->setDefaultNamespace('App\Controllers');
+        $routes->setLocalePattern('(en|pt)');
+
+        $routes->get('{locale}/products', 'Products::list');
+
+        $router = new Router($routes, Services::request());
+        $x      = $router->handle('pt/products');
+
+        $this->assertSame('\App\Controllers\Products', $x);
+        $this->assertSame('pt', $router->getLocale());
+        $this->assertSame('(en|pt)', $routes->getLocalePattern());
+    }
+
+    public function testRouterHandleWithSetLocaleThrowsPageNotFoundException()
+    {
+        $routes = $this->getCollector();
+        $routes->setDefaultNamespace('App\Controllers');
+        $routes->setLocalePattern('(en|pt)');
+        $routes->get('{locale}/products', 'Products::list');
+        $router = new Router($routes, Services::request());
+
+        $this->expectException(PageNotFoundException::class);
+        $router->handle('fr/products');
+    }
 }