How do I troubleshoot NUnit test failures?

I'm getting a lot of test failures in my NUnit tests. What should I do?

First, check the error messages for specific details. They often indicate what went wrong.

The error says 'NullReferenceException'. What does that mean?

A 'NullReferenceException' usually means you're trying to access an object that hasn't been initialized. Check your code for any uninitialized variables.

How can I find out which line is causing the exception?

You can use a debugger to step through your tests or check the stack trace in the error message for the line number.

Thanks! Any tips for writing better tests?

Sure! Make sure your tests are isolated, use meaningful names, and cover edge cases.