public function testRateItem()
 {
     // Set mocked response
     $body = new Stream(fopen(__DIR__ . '/../dummy_response_data/rateItem.json', 'r'));
     $this->subscriber->addResponse(new Response(200, [], $body));
     $item = $this->client->rateItem('', '');
     $this->assertEquals('3333', $item->getItemId());
     $this->assertEquals('the title', $item->getTitle());
     $this->assertNull($item->getDescription());
     $this->assertNull($item->getAuthor());
     $this->assertEquals(2400, $item->getScore());
     $this->assertInstanceOf('DateTime', $item->getDateCreated());
 }