What are your Rails testing questions?

I’m trying to gain a better understanding of what kinds of questions developers have when they’re first learning Rails testing so that I can create better and more helpful content.

If you feel so inclined, you can help me by answering the following two questions. Thanks in advance.

Which of these questions do you have or have you had while trying to learn Rails testing? (select as many as you like)
- What are the different kinds of Rails tests and when should I use each?
- How can I make testing a habitual part of my development work?
- Should I be doing test-driven development (TDD)?
- Which testing framework should I use (RSpec or Minitest)?
- What are all the Rails testing tools and how do I use them?
- How do I add tests to an existing Rails project?
- How do I set up a new Rails project for testing?
- What level of test coverage should I shoot for?
Are there any other questions you've had about Rails testing that I didn't list above? Anything about testing you wish someone would explain to you? (The more detail the better.)

Code with Jason

The Beginner's Guide
to Rails Testing

What are your Rails testing questions?

The Beginner's Guideto Rails Testing

The Beginner's Guide
to Rails Testing