Hi,
Please have a chat with me to discuss more about the project. I will try to write the unit test and give you the demo via skype direct call and screen sharing. If you don't want my implementation, you can reject it without any concern from my part. No money required then
Also, You can discuss with me about the requirement any time via skype.
About me, you can see my profile here:
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And my feedback from previous clients on freelancer here:
https://www.freelancer.com/u/nxhoaf.html
I am looking forward to talking with you more about this project.
Thank you,
Hoa.