Symfony\Component\DomCrawler\Tests\CrawlerTest::testIteration PHP Method

    public function testIteration()
    {
        $crawler = $this->createTestCrawler()->filterXPath('//li');

        $this->assertInstanceOf('Traversable', $crawler);
        $this->assertContainsOnlyInstancesOf('DOMElement', iterator_to_array($crawler), 'Iterating a Crawler gives DOMElement instances');
    }