DEV Community

Testing

Find those bugs before your users do! 🐛

Posts

👋 Sign in for the ability to sort posts by relevant, latest, or top.
Who Owns the In-Flight Request? A First-PR Harness for Mobile AI Features

Who Owns the In-Flight Request? A First-PR Harness for Mobile AI Features

Comments
6 min read
avoiding race conditions in async cascade deletes for event‑sourced services

avoiding race conditions in async cascade deletes for event‑sourced services

Comments
2 min read
Your Agent Says the Refactor Changes Nothing. Run Both Branches on the Same Inputs

Your Agent Says the Refactor Changes Nothing. Run Both Branches on the Same Inputs

Comments
10 min read
Your agent eval passed. Did the fixture leak the answer?

Your agent eval passed. Did the fixture leak the answer?

Comments
3 min read
Cold Starts, Lost Files, and Green Dots: Five Myths About Using a Free Server as Staging

Cold Starts, Lost Files, and Green Dots: Five Myths About Using a Free Server as Staging

Comments
5 min read
Build the Evidence Card Before the Model Writes Anything

Build the Evidence Card Before the Model Writes Anything

Comments
6 min read
Properties Without Witnesses Are Decorations: A Falsifiability Gate for Agent Patches

Properties Without Witnesses Are Decorations: A Falsifiability Gate for Agent Patches

Comments
5 min read
Isolated Testing Strategies for Microservices

Isolated Testing Strategies for Microservices

Comments
8 min read
Codex Swapped Its Default Model and Retired GPT-5.5 in 15 Days. Did Your Evals Notice?

Codex Swapped Its Default Model and Retired GPT-5.5 in 15 Days. Did Your Evals Notice?

1
Comments 1
8 min read
A 200 response and a broken page: what screenshot monitoring taught me

A 200 response and a broken page: what screenshot monitoring taught me

Comments
3 min read
Your Public Beta Needs a Bug Report a Stranger Can Reproduce

Your Public Beta Needs a Bug Report a Stranger Can Reproduce

1
Comments
6 min read
Privacy Budgets for Test Email in Web Apps

Privacy Budgets for Test Email in Web Apps

Comments
5 min read
Stop Blaming the Model: A Failure-Taxonomy Probe for Agent Runs on Free Tiers

Stop Blaming the Model: A Failure-Taxonomy Probe for Agent Runs on Free Tiers

Comments
5 min read
I let Stripe grade my tests: building a billing simulator where no expected value comes from my own code

I let Stripe grade my tests: building a billing simulator where no expected value comes from my own code

Comments
6 min read
Make a Flaky Test Fail on Demand Before You Hand It to Your Coding Agent

Make a Flaky Test Fail on Demand Before You Hand It to Your Coding Agent

Comments
9 min read
👋 Sign in for the ability to sort posts by relevant, latest, or top.