public function testValidSeoChannelContent()
 {
     $title = 'Title';
     $description = 'Lorem ipsum dolor sit amet..';
     $url = 'http://lorem.ipsum';
     $seoMetadata = new SeoMetadata();
     $seoMetadata->setTitle($title);
     $seoMetadata->setMetaDescription($description);
     $seoMetadata->setOriginalUrl($url);
     $seoAware = $this->getMock('Symfony\\Cmf\\Bundle\\SeoBundle\\SeoAwareInterface');
     $seoAware->expects($this->once())->method('getSeoMetadata')->will($this->returnValue($seoMetadata));
     $this->assertTrue($this->extractor->supports($seoAware));
     $channel = new Channel();
     $this->extractor->updateMetadata($seoAware, $channel);
     $this->assertSame($title, $channel->getTitle());
     $this->assertSame($description, $channel->getDescription());
     $this->assertSame($url, $channel->getLink());
 }