this post was submitted on 14 Aug 2023
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How do you get your team to write tests? (programming.dev)
submitted 1 year ago* (last edited 1 year ago) by kersplort@programming.dev to c/experienced_devs@programming.dev
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I'm like a test unitarian. Unit tests? Great. Integration tests? Awesome. End to end tests? If you're into that kind of thing, go for it. Coverage of lines of code doesn't matter. Coverage of critical business functions does. I think TDD can be a cult, but writing software that way for a little bit is a good training exercise.

I'm a senior engineer at a small startup. We need to move fast, ship new stuff fast, and get things moving. We've got CICD running mocked unit tests, integration tests, and end to end tests, with patterns and tooling for each.

I have support from the CTO in getting more testing in, and I'm able to use testing to cover bugs and regressions, and there's solid testing on a few critical user path features. However, I get resistance from the team on getting enough testing to prevent regressions going forward.

The resistance is usually along lines like:

  • You shouldn't have to refactor to test something
  • We shouldn't use mocks, only integration testing works.
    • Repeat for test types N and M
  • We can't test yet, we're going to make changes soon.

How can I convince the team that the tools available to them will help, and will improve their productivity and cut down time having to firefight?

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[–] kersplort@programming.dev 2 points 1 year ago

I think the best thing to do with TDD is pair with or convince devs to try it for a feature. Coming at things test first can be novel and interesting, and it does train you to test and use tests better. Once people have tried it, I think it broadens your use of tests pretty well.

However, TDD can be a bit of a cult, and most smart and independent people (like people willing to work at a <20 person company) will notice that TDD isn't the silver bullet it's proponents make it out to be.