A classmate accidentally spilled water on my laptop and fried the hard drive

On a Friday while a group of us were studying in a coffee shop, a fellow classmate that was sitting across the table from me somehow knocked over my water on to my computer completely drenched the keyboard. After the accident happened, I took the computer to the nearest Apple store (1.5 hours away) and an Apple specialist said it was a fried hard drive. They could send the computer in for $800, but the results are not guaranteed, it would take 3-5 business days, and the computer would probably have future issues, or we could buy a replacement for $850 (before tax). I needed a computer for a test on Monday so I purchased the replacement. Now my classmate is claiming that she is not responsible to pay for the damages... Do I have a case for small claims court?