Eko\FeedBundle\Tests\Formatter\RSSFormatterTest::testAddCustomItemFieldWithOneAttributeOnly PHP Method

    public function testAddCustomItemFieldWithOneAttributeOnly()
    {
        $feed = $this->manager->get('article');
        $feed->add(new FakeItemInterfaceEntity());
        $feed->addItemField(new ItemField('fake_custom', 'getFeedItemCustom', ['attribute' => true, 'attribute_name' => 'fake-value']));
        $output = $feed->render('rss');
        $this->assertContains('<fake_custom fake-value="My custom field"/>', $output);
    }