Regarding Intellij and looking for classes / running test: I think this mostly depends on whether you're casually browsing some random project, or if you're gon

Regarding Intellij and looking for classes / running test: I think this mostly depends on whether you're casually browsing some random project, or if you're gonna work on the same project for several weeks. It's fine to try to open the random project in your favorite IDE and see if it just works. If it doesn't, and you just need to figure out what the code does, fix a few lines of code, going back to a text editor, grepping and trusting the CI to run the tests itself is just less overhead. If you work on the same project for a longer period of time, you can easily justify the upfront cost of configuring your environment properly (and have your class searches and 'Run all tests' running).