We started from zero TDD

Jon really helped me understand what I should be testing when I didn't know where to start. My team started from zero TDD and my successes in it have inspired the rest of the team to start.

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Oliver Foggin Senior iOS developer

How to Write Quality Code

safety harness

Unit Testing

A robust suite of unit tests acts as a safety harness, giving you courage to make bold changes. But there’s an art to making tests that give you useful information, while keeping the tests themselves readable & maintainable.

checklist

TDD

Unit tests written after production code are hard to write, and may only confirm your biases. Test-Driven Development shapes production code in response to tests, in an evolutionary manner. The secret sauce? Continuous Refactoring.

blueprint

Design

We can’t just bang code together and expect it to be testable. Testability must be designed in. That design brings other benefits, making it easier to modify the code. The ultimate goal? Drive down your cost of change.

Discover the Quality Coding Blog

 

Unit test success

Thank you so much for these awesome screencasts and tips!! I have used your techniques to unit test view controller and XIBs and UIAlertViews successfully :-)

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Amit Rao

The single biggest influence

Jon approaches software as a craftsman. In my years as a professional, learning from Jon has probably been the single biggest influence on the way I write software today.

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Rick Van Voorden
iPhone Developer
 

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