Episode 33
Back in the Testing Weeds with Sam Phippen and Justin Searls
March 28th, 2018
41 mins 27 secs
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About this Episode
Back in the Testing Weeds with Sam Phippen and Justin Searls
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Guests
- Sam Phippen: Tech Lead at DigitalOcean and member of the RSpec Core Team
- Justin Searls: Co-founder of Test Double
Summary
I'm back in the testing weeds with Sam Phippen, lead maintainer for RSpec-Rails, and Justin Searls, co-founder of Test Double and author of testdouble.js. We talk about long-running test suites: are they bad, or just misunderstood? Does parallel CI solve all testing speed problems, or just some of them? Then we move to a wider view, what does it mean to test your library as part of a larger ecosystem. And, how can we leverage coverage or CI information to make for more useful testing tools over the lifetime of a project.
Notes
02:32 - Dealing with Longer and Longer Test Suites
09:43 - What causes people to get into this trouble?
12:46 - If you had a fast test suite, would you still parallelize it in the CI?
15:12 - What does it mean for your library to still be functional?
21:35 - Bugs found via the dont-break style of testing
24:06 - Inferring which tests are run from a production code diff
29:31 - Coverage, what's it good for?
33:53 - What kind of features would you expect out of a CI-aware testing suite?
Related Episodes
Part I: Episode 004: In The Testing Weeds