A script to run a test bench on hundreds of student verilog

Hi all, I happen to receive Verilog projects from hundreds of students, which is very tedious to mark and grade manually. I am looking for any recommendations to facilitate this process. What I am thinking of is to write a test bench my self with multiple test cases with corresponding output, and gather all the students' files in one place (either locally or online), and run the test bench on all of them at once, automatically grading. Do you have any recommendations ? Do you know of any website like codeforces for example that accepts "verilog contests" ? Or If I have to develop this solution myself, do you have any guidelines or advice in general ?
Thanks