createFormBuilder example

$formBuilder = $this->createMock(FormBuilderInterface::class);

        $formFactory = $this->createMock(FormFactoryInterface::class);
        $formFactory->expects($this->once())->method('createBuilder')->willReturn($formBuilder);

        $container = new Container();
        $container->set('form.factory', $formFactory);

        $controller = $this->createController();
        $controller->setContainer($container);

        $this->assertEquals($formBuilder, $controller->createFormBuilder('foo'));
    }

    public function testAddLink()
    {
        $request = new Request();
        $link1 = new Link('mercure', 'https://demo.mercure.rocks');
        $link2 = new Link('self', 'https://example.com/foo');

        $controller = $this->createController();
        $controller->addLink($request, $link1);
        $controller->addLink($request, $link2);