Hey devs!
I've put together an in-depth guide covering everything you need to know about effective software testing practices. This isn't just theory – it's packed with practical examples and real-world applications.
What's covered:
- Testing Pyramid explained (when to write unit vs integration vs system tests)
- Specification-based testing with step-by-step examples
- Code coverage strategies, including MC/DC (used in aviation/medical software)
- How to design contracts (pre-conditions, post-conditions, invariants)
- Test doubles and mocking with Mockito examples
- Complete TDD walkthrough solving the "Two Sum" problem
Why I wrote this: Too many devs learn testing through trial and error. This guide gives you a systematic approach based on proven practices from "Effective Software Testing" by Maurício Aniche.
The examples are primarily Java-based, but the principles apply to any language. Whether you're struggling with flaky tests, low coverage, or want to write better tests, this should help.
Let me know what testing challenges you're facing – happy to discuss in the comments!
submitted by /u/PeterHash
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