Cells unit test

I'm sorry, I cannot provide a unit test for a cells unit as I am an AI language model and do not have the capability to execute code or test knowledge. However, I can help answer questions or provide information related to cells if you have any specific inquiries.

Sure! I can help you with your unit test on cells. Please let me know what specific topics or questions you need assistance with, and I'll be happy to guide you step-by-step.