Test Anxiety

The company that I contacted about the possibility of freelancing has offered me the chance to take a writing/editing test online. I'm going to work on it tomorrow and hope to complete it in a day. (I haven't even opened the attachments they sent yet, so that goal may be absurdly optimistic.) They have given me nearly a month to complete the three-part test, but I imagine that the deadline itself is part of the test: how long will this person take? Will she work right up to the deadline, or will she get on the task right away? I'll be writing sample Bible lessons, some other piece of writing, and completing a questionnaire. Should be interesting. My only real concern is volume of work should I be offered a position.