Testmoz is a test generator that sports 4 question types, automatic grading, a really simple interface and detailed reports. Testmoz is free, and does not require you (or your students) to register. You can build a fully functional test in about a minute, so why don't you give it a try and generate a test?
here is a summative and formative assessment that is good to use in the classroom, the teacher can see what the kids know, then also the teacher can help the kids work on the homework they do not know http://www.youtube.com/watch?v=zxJgPHM5NYI