Debugging a program that a whole team is working on?

Question

Java

Hello toaster. Before I get confused and make stupid conclusions, explain to me how to debug a program that is being developed by many people. Let's say 1 person is responsible for one part of the functionality, the other for another. All this is stored in a repository on the server. Does each member of the team have a copy of the full copy from the repository on the local computer? That is, it turns out that if I want to walk around the software with a debugger in a large enterprise project, how can I do this? After all, in order for the software to work, you need to configure it, deploy it, and do a lot of other things that you cannot do locally on your computer.

Answer 1

well, if these are isolated modules that can be run separately, then developers have either stubs to imitate other services or some kind of test environment where all services are available
but the first option is more reliable during development: both faster and more stable
if it's all the same one app, run it and watch)