Issue #2431053 by zealfire, epari.siva, dawehner:...

Issue #2431053 by zealfire, epari.siva, dawehner: RouteProviderTest::testRouteByName should be public

core/modules/system/src/Tests/Routing/RouteProviderTest.php

@@ -382,7 +382,7 @@ function testCurrentPath() {
   /**
    * Test RouteProvider::getRouteByName() and RouteProvider::getRoutesByNames().
    */
-  protected function testRouteByName() {
+  public function testRouteByName() {
     $connection = Database::getConnection();
     $provider = new RouteProvider($connection, $this->routeBuilder, $this->state, $this->currentPath, 'test_routes');