Let's say I want to write a function that validates an email address with a regex. I write a little test to check my function and write the actual function. Make it pass.

However, I can come up with a bunch of different ways to test the same function ([email protected]; [email protected]; test.test.com, etc).

Do I put all the incantations that I need to check in the same, single test with several ASSERTS or do I write a new test for every single thing I can think of?

Thanks!