getServiceContainer example

$routes->add('foo', new Route(
            ' /{_locale}',
            [
                '_locale' => '%locale%',
            ],
            [
                '_locale' => 'en|es',
            ], [], '', [], [], '"%foo%" == "bar"'
        ));

        $sc = $this->getServiceContainer($routes);
        $sc->setParameter('locale', 'es');
        $sc->setParameter('foo', 'bar');

        $router = new Router($sc, 'foo');

        $this->assertSame('/en', $router->generate('foo', ['_locale' => 'en']));
        $this->assertSame('/', $router->generate('foo', ['_locale' => 'es']));
        $this->assertSame('"bar" == "bar"', $router->getRouteCollection()->get('foo')->getCondition());
    }

    public function testGenerateWithDefaultLocale()
    {