+ $this->assertSame('my content', $content['content']);
+ $this->assertSame('de', $content['language']);
+ $this->assertSame('2016-09-08T11:55:58+0200', $content['published_at']);
+ $this->assertCount(2, $content['published_by']);
+ $this->assertContains('bob', $content['published_by']);
+ $this->assertContains('helen', $content['published_by']);