Alternatives to Unit Testing?

Question

During a technical interview I was asked about ways to make sure code/software design is functional before deploying to any servers and the only thing I could think of was unit testing. My interviewer pressed me for other ways but I couldn't come up with any alternatives.

Answer 1

There are several ways to ensure product/code quality and functionality before deployment:

1. Basic functionality testing
2. Code Review
3. Static code analysis
4. Unit Testing
5. Single user performance testing