I don’t have any documents, how can I test?

I begin to receive a project without document,
I don’t know where to start.
I have no clue of sign-off requirements.
I don’t know how to baseline my testing.
I am totally confused and get lost.

 Instead of worrying and depressing yourself, try the following:
• If you don’t see documentation, just ask.
• Talk with anyone you think can help you understand the system and have them walk you through the system under test.
• Perform exploratory testing and following oracle heuristics (HICCUPPS). I recommend “Testing Without a Map” from Michael Bolton for the guide of this kind testing