Fixed feedback bug when using dataProvider

Let me first say that I hope I didn't miss-use the paratest but I just wasn't able to get it working with dataProviders. I mean the tests worked but the output was just a way off - it printed about 3 times more "dots" then it should. After some time I found out that it is caused by the dataProvider. This patch should cover this sitation - I hope I didn't overlooked something. Thank you for your feedback.