What occurs when using the RunSpecifiedTests level?

Using the RunSpecifiedTests level means that only the tests you have explicitly mentioned will be executed during the testing process. This targeted approach allows for greater efficiency, especially when you want to focus on specific areas of code or when you have made changes only in certain components. By running only the specified tests, you can save time and resources, as you are only verifying the functionality of the relevant sections of your application rather than running the entire suite of tests.

In contrast, running all tests would involve executing every single defined test, which is unnecessary if you are only interested in the results of particular tests. Additionally, not running any tests or requiring all classes to pass are not relevant to the specified context of running selective tests, which is precisely what the RunSpecifiedTests level is designed to accomplish.