The Test Explorer has a great ability to filter tests in a number of different ways so you don't have to run your whole test suite when you're just...
For further actions, you may consider blocking this person and/or reporting abuse
These annotations, "traits", are independent of whether you are using xunit or nunit?
Yes, the syntax is different depending on what Unit Test Framework you're using. This blog post has some of the information about the formats at the bottom. The post is from 2012, so it may not be up to date, but should point you in the right direction.