PopTest\Form\FormTest::testRender PHP Метод

    public function testRender()
    {
        $e = new Element('text', 'username', 'Username');
        $e->setLabel('Username');
        $s = new Element('submit', 'submit', 'Submit');
        $f = new Form('/submit', 'post');
        $f->addElements(array($e, $s));
        $form = $f->render(true);
        $this->assertContains('<form ', $form);
        $f = new Form('/submit', 'post');
        $f->addElements(array($e, $s));
        ob_start();
        $f->render();
        $output = ob_get_clean();
        $this->assertContains('<form ', $output);
        $f = new Form('/submit', 'post');
        $f->addElements(array($e, $s));
        $this->assertContains('<form ', (string) $f);
    }