iiinova — where your digital self keeps evolving

Jon Reid @qualitycoding.org · 03/08/2026

In TDD, you sometimes write code that looks obviously wrong on purpose — like hard-coding "0" instead of real logic. It feels uncomfortable. That discomfort is actually the point. Here's why. qualitycoding.org/swiftui-tdd-fake-…

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Jon Reid @qualitycoding.org · 20/07/2026

I'm building the trip preparation checklist app _I want_ for myself. Note I say "preparation checklist" not "packing list" because hey, I have more to do than pack. With completely customizable "categories" (Flying, Driving, etc.), I bet people will use it in ways I never thought of. #BuildInPublic

iPhone screen "Select Categories": Choose which categories to include in your trip checklist.

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Jon Reid @qualitycoding.org · 17/07/2026

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Jon Reid @qualitycoding.org · 07/07/2026

Swift Testing's failure messages look "funny". But that's not the real problem. The real problem is when they show up in the wrong place entirely. qualitycoding.org/swift-testing-cus… #SwiftLang

Image shows a man looking through binoculars and asking "WHERE ARE YOU?".

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Jon Reid @qualitycoding.org · 19/06/2026

Swift Testing's failure messages look "funny". But that's not the real problem. The real problem is when they show up in the wrong place entirely. qualitycoding.org/swift-testing-cus…

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Jon Reid @qualitycoding.org · 17/06/2026

Is LinkedIn website broken for anyone else? I tried disabling my ad blockers but that hasn't helped.

LinkedIn feed with spinner where content should be

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Jon Reid @qualitycoding.org · 08/06/2026

Just starting to watch the #WWDC keynote. Oh hey, they highlight the most egregious things about Liquid Glass that will be "improved" in iOS 27, meaning fixed. Meanwhile, here's my lovely face on iOS 26:

Jon's face distorted by a folder on iOS 26

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Jon Reid @qualitycoding.org · 06/06/2026

Does testing SwiftUI feel impossible compared to writing the feature itself? qualitycoding.org/swiftui-tdd-first…

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Jon Reid @qualitycoding.org · 16/05/2026

Does testing SwiftUI feel impossible compared to writing the feature itself? qualitycoding.org/swiftui-tdd-first…

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Jon Reid @qualitycoding.org · 02/04/2026

Finally! Discovered thanks to running SwiftFormat over this project. Swift 6.2 means you can write backtick test names (like Kotlin).

Code diff.
Before:
@Test("Current app version is valid")
func appVersionCurrent() async throws

After:
@Test
func `Current app version is valid`

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Jon Reid @qualitycoding.org · 01/03/2026

“Christ Breaks the Rifle” by kellylatimoreicons.com

Icon by Kelly Latimore depicting Jesus Christ breaking an assault rifle

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Jon Reid @qualitycoding.org · 28/02/2026

I'm starting a new iOS app, and feel like I already have several things to blog about. But first, a micro-blog: - I want the Swift Package to contain all non-UI code. - Incredible feedback speed compared to testing in iOS simulator! - Many think "unit tests" means each type needs a test file. Nope.

Xcode showing Swift Package. Production code: 17 types. 12 Swift Testing tests in 3 test suites, total time 0.002 seconds.

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Jon Reid @qualitycoding.org · 14/01/2026

Bugs are opportunities. How can you get the most value from the next defect you fix? qualitycoding.org/safety-nets-guard…

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Jon Reid @qualitycoding.org · 09/01/2026

This was me, at the top of the main AppCode page. I still hold to that quote.

JetBrains webpage for AppCode, with testimonial from Jon Reid: "With AppCode, it feels like code flies from my head to the screen."

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Jon Reid @qualitycoding.org · 09/01/2026

Cleaning out a drawer, I found my old AppCode t-shirt. It's been 3 years since the only JetBrains IDE for Apple development was killed. It still has no substitute. AI tools can do some refactoring, but not: - provably - deterministically - locally - in a single keystroke that expresses my intention

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Jon Reid @qualitycoding.org · 17/12/2025

ApprovalTests in Swift makes it easy to write powerful parameterized tests. Verify a sequence of inputs, but transform the values through the function you want. qualitycoding.org/parameterized-tes…

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Jon Reid @qualitycoding.org · 21/11/2025

Looking for a technical book for a friend? Or for yourself? …Maybe even my book iOS Unit Testing by Example? Now's your chance to snag a deal at pragprog.com! Check out with discount code "save50" Do it while you can, offer ends December 1

Save 50%
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Offer ends December 1

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Jon Reid @qualitycoding.org · 17/11/2025

Stop pretending SwiftUI tests are impossible — ViewInspector lets you inspect views and verify behavior. qualitycoding.org/viewinspector-swi…

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Jon Reid @qualitycoding.org · 30/10/2025

Stop pretending SwiftUI tests are impossible — ViewInspector lets you inspect views and verify behavior. qualitycoding.org/viewinspector-swi…

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Jon Reid @qualitycoding.org · 03/10/2025

TDD isn't about writing code first — it's about thinking first qualitycoding.org/describe-test-pla…

Geordi Drake meme
Top (reject): writing code first
Bottom (approve): thinking first

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Jon Reid @qualitycoding.org · 02/10/2025

RIP Jane Goodall. I used to read about her in the old National Geographic issues we had at our summer cabin.

The Far Side cartoon features two chimpanzees in a tree, with one discovering a blonde hair on the other, asking, "Conducting a little more 'research' with that Jane Goodall tramp?"

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Jon Reid @qualitycoding.org · 18/09/2025

🚨 FLASH SALE ALERT 🚨 45% OFF iOS Unit Testing by Example! Sale starts NOW (14:00 UTC) — for just 48 hours. Already have my book? Grab another! May I suggest Agile Retrospectives? Visit pragprog.com Promo code: flashsale

Flash Sale
45% off
Sept 18–20
Promo code: flashsale
Only at pragprog.com

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Jon Reid @qualitycoding.org · 01/09/2025

Anyone else write a lot of Xcode code snippets? I haven't seen a description of the "Availability" choices, showing "This applies here, but not there."

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Jon Reid @qualitycoding.org · 18/08/2025

TDD isn't just "write a test first." It's also knowing _which_ test matters most. qualitycoding.org/tdd-where-do-you-…

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Jon Reid @qualitycoding.org · 13/08/2025

See how my code changes as I pair program with Swift 6. Join us for a fun conversation about working with strict concurrency for data race safety. qualitycoding.org/conversation-swif…

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Jon Reid @qualitycoding.org · 02/08/2025

Xcode supports some automated refactoring — but the options are often disabled when you need them. They're buried, unpredictable, and easy to give up on. So… qualitycoding.org/xcode-key-binding…

Lucy pulling football away from Charlie Brown's kick (again)

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Jon Reid @qualitycoding.org · 31/07/2025

TDD isn't just "write a test first." It's also knowing _which_ test matters most qualitycoding.org/tdd-where-do-you-…

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Jon Reid @qualitycoding.org · 15/07/2025

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Jon Reid @qualitycoding.org · 07/06/2025

Going to #WWDC? I’ll be at the RevenueCat pre-WWDC Bashcade on Sunday night. Help this introvert out by saying hi, and ask me for a Quality Coding laptop sticker 😀

Holding several Quality Coding laptop stickers

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Jon Reid @qualitycoding.org · 16/04/2025

Learn to set up CI tooling for Xcode projects using GitHub Actions. Reduce remote debugging time with local scripts and fast feedback loops. qualitycoding.org/github-actions-ci…

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Jon Reid @qualitycoding.org · 10/03/2025

Should you really test that? Rethinking SwiftUI unit tests qualitycoding.org/what-to-test-in-s…

"Two buttons" meme with sweating guy, titled "SwiftUI Unit Testing"

Button 1: Test nothing
Button 2: Test everything

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Jon Reid @qualitycoding.org · 20/02/2025

Should you really test that? Rethinking SwiftUI unit tests qualitycoding.org/what-to-test-in-s…

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Jon Reid @qualitycoding.org · 15/02/2025

Cropped from emilyscartoons www.tumblr.com/emilyscartoo...

3 panel comic by emilyscartoons of two people talking.

Panel 1
Person 1: "Let's not talk about politics anymore, I can't bear it"
Person 2: "same"

Panel 2
Both people sit in silence

Panel 3
Person 1: "THE THING IS THOUGH"
Person 2: "THOSE FUCKING IDIOTS"

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Jon Reid @qualitycoding.org · 04/02/2025

SwiftUI Testing: Why I'm Still Pushing for Unit Tests qualitycoding.org/beyond-ui-tests-w…

Image of Sisyphus pushing the rock, with text: "Come on Sisyphus!"

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Jon Reid @qualitycoding.org · 27/01/2025

"Our iOS Code is Too Complex for Unit Tests" is a Lie 🤥 qualitycoding.org/legacy-code-rescu…

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Jon Reid @qualitycoding.org · 21/01/2025

Unit Testing SwiftUI? A Bold Challenge with a Simple Counter App 💡 qualitycoding.org/swiftui-testing-c…

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Jon Reid @qualitycoding.org · 14/01/2025

I had a great time in my latest #SwiftLang live coding, which is now uploaded to www.youtube.com/@QualityCoding. Here are the retro notes:

- Snapshots
- First parameterized test!
- Use makeSUT
- Refactor ruthlessly
- OO: Don't expose properties!
- …and more

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Jon Reid @qualitycoding.org · 09/01/2025

"Our iOS Code is Too Complex for Unit Tests" is a Lie 🤥 qualitycoding.org/legacy-code-rescu… #iOSDev

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Jon Reid @qualitycoding.org · 07/01/2025

⚡️ 6 Tests to 120: A Legacy Code Transformation Story qualitycoding.org/legacy-code-rescu… #LegacyCode

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