LightNews — News, ranked by scholars

Gil Zilberfeld

@gilzilberfeld.bsky.social

Mocks in integration tests. Debated for almost 30 years.
Mock the dependency: you're not testing the integration.
Don't: the test fails every time the other API sneezes.
Which one? Depends on what you want the test to tell you.
testingil.com/2026/11/mock...
#APITesting #TestAutomation #UnitTesting

November 2, 2026 at 2:17 PM

Perfall

@perfallit.bsky.social

Green unit tests still merge code that's 40% slower. Correctness and speed are different axes, and a test suite only watches one of them. That's why the gate in CI is a separate job with its own exit code, not another test case.

#pytest #unittesting #performance

October 29, 2026 at 9:28 AM

JDriven

@jdriven.com

Did I Map Everything?
A blog by Tundzaj Barov

When migrating database schemas, you rarely get clean, predictable data. Legacy databases often have cryptic column names,...

#dev #softwaredevelopment #Mockito #JDBC #UnitTesting #DataMigration

https://jdriven.com/blog/2026/10/Did-I-Map-Everything/

October 23, 2026 at 7:07 AM

David McCarter - Microsoft MVP - Looking for remote work!

@dotnetdave.bsky.social

Skipping unit tests is like driving without brakes.
It works until the crash. 💥🚗
Test first. Deploy last. 🎶
#dotNetDave #CodeQuality #UnitTesting
dotnettips.wordpress.com/2019/10/02/d...

dotNetDave Says… If Your Code Is Hard To Unit Test, You’re Doing It Wrong!

Unit testing is vital in software projects, yet often neglected. Many developers avoid writing tests, but they provide necessary confidence and enable safe code changes. Without unit tests, deployi…

dotnettips.wordpress.com

October 22, 2026 at 7:34 AM

JaxLUG

@jaxlug-org.bsky.social

Reliable software depends on more than getting features shipped. Practices such as unit testing, thoughtful concurrency handling, and robust integrations can support code quality over time.

See the overview: www.jaxlug.org/advanced-cod...

#SoftwareDevelopment #Coding #UnitTesting

October 21, 2026 at 6:17 AM

Alvin Ashcraft

@alvinashcraft.com

.NET tasks AI is better at than developers | by David Grace

buff.ly/RkUKkfe

#dotnet #ai #csharp #softwaredev #agents #unittesting #codecomments

.NET tasks AI is better at than developers

Find out how AI is better than .NET developers at creating projects, writing unit tests, adding comments and debugging exceptions.

buff.ly

October 20, 2026 at 6:01 PM

David McCarter - Microsoft MVP - Looking for remote work!

@dotnetdave.bsky.social

🎤 THOU SHALT NOT SHIP WITHOUT UNIT TESTS.
If the code can’t survive rehearsal, it has no business going on stage. Test it before your users become the QA department.
#MVPBuzz #RockYourCode #UnitTesting #SoftwareEngineering

October 15, 2026 at 4:29 PM

Wojakistan

@wojakistan.bsky.social

Every single time the sprint deadline is looming dangerously close.

⚡ Like & follow for more coding humor!

#DeveloperLife #UnitTesting #CodeHumor #SoftwareEngineering #TechMemes

Meme template 'Sweet Brown' featuring a woman in an orange headwrap and striped top talking passionately during an interview. The top line of text reads 'Ain't nobody got time' and the bottom line reads 'to write unit tests!'.

October 16, 2026 at 2:27 PM

Damir Arh

@damirscorner.com

Extending NUnit's constraint syntax is easier than you might think

www.damirscorner.com/blog/posts/2...

#dotnet #unittesting

Implementing a custom NUnit constraint

In the previous blog post I simplified complex test methods by refactoring the arrange and act code into reusable classes and methods. In this blog post I'll continue by refactoring the assert code.

www.damirscorner.com

October 16, 2026 at 6:25 AM

Jan Van Ryswyck

@janvanryswyck.mastodon.social.ap.brid.gy

Blogged: How Long Does It Take to Learn TDD? Longer Than You Think, And That's Fine.
https://principal-it.eu/2026/10/how-long-to-learn-tdd/

#tdd #testdrivendevelopment #unittests #unittesting #softwaredesign

October 14, 2026 at 5:29 PM

Wojakistan

@wojakistan.bsky.social

If the pipeline is green, management doesn't need to know the details.

🔔 Hit follow for more tech memes!

#DevLife #ProgrammingHumor #UnitTesting #SoftwareEngineering #CodeReview

A brown bear leaning casually against a fallen log with a smug, condescending smirk on its face, mockingly attentive. Text on top reads: 'Oh, you fixed the failing build by commenting out the unit test?' Text on the bottom reads: 'Please, tell me more about your engineering excellence.'

October 11, 2026 at 4:08 PM

Markus Eisele

@myfear.com

IBM Bob wrote the tests; I gave Paris Miami's weather. The city assertion caught it.

I spent more time narrowing the strategy than editing Java. Curious how that compares with your runs.

buff.ly/kpvHDQs

#Java #UnitTesting

Java Unit Tests with IBM Bob: Generate, Review, Break Something

I kept Java 8 and JUnit 4, narrowed Bob's test strategy, and checked whether the generated suite caught the wrong city's weather.

www.the-main-thread.com

October 10, 2026 at 6:15 AM

Damir Arh

@damirscorner.com

I've been meaning to write about test refactoring. The tests from my previous blog posts are good candidates for that.

www.damirscorner.com/blog/posts/2...

#dotnet #unittesting

Refactor tests to make them more readable

The key role of tests is to ensure that the software under test behaves correctly. But there's also value in test code being easy to read and understand. When a test breaks you want to quickly see wha...

www.damirscorner.com

October 9, 2026 at 6:27 AM

Wojakistan

@wojakistan.bsky.social

I was wondering why that massive refactor went suspiciously smoothly.

💬 Tag a dev who needs to see this! Follow for more.

#debugging #unitTesting #devHumor #softwareEngineering #programmingLife

Bad Luck Brian meme featuring a teenage boy with braces, messy blonde hair, and an awkward smile wearing a red plaid sweater vest. Top text reads: 'FINALLY PASSES ALL 400 UNIT TESTS'. Bottom text reads: 'TEST RUNNER WAS CONFIGURED TO ALWAYS EXIT 0'.

October 9, 2026 at 4:45 PM

Alvin Ashcraft

@alvinashcraft.com

UWP and WinUI 3 apps: UI testing with MSTest

ift.tt/FMnadJ8

#windowsdev #unittesting #testing #winui #uwp #dotnet #appdev #visualstudio

UWP and WinUI 3 apps: UI testing with MSTest - .NET Blog

Learn how to test UWP and WinUI 3 apps with MSTest and Microsoft.Testing.Platform across packaged, unpackaged, and AppContainer hosts.

ift.tt

October 6, 2026 at 4:03 PM

Gil Zilberfeld

@gilzilberfeld.bsky.social

We nagged developers for years to give us tests. Any proof the code works.
Thanks to AI, we got what we asked for. The bugs are still in there.
New blog →
testingil.com/2026/09/why-...
#AITesting #SoftwareTesting #AIGeneratedCode #CodeQuality #UnitTesting

September 24, 2026 at 1:49 PM

Dennis Doomen

@dennisdoomen.com

This evening, we've released Fluent Assertions 8.11. Check out the detailed release notes at github.com/fluentassert...

#mvpbuzz #unittesting #assertions