DEV Community

Testing

Find those bugs before your users do! 🐛

Posts

👋 Sign in for the ability to sort posts by relevant, latest, or top.
Evals: How You Know the Agent Works in Production

Evals: How You Know the Agent Works in Production

Comments 1
3 min read
It Printed "Verifying." It Verified Nothing.

It Printed "Verifying." It Verified Nothing.

1
Comments
6 min read
A field disappeared from Shopify webhooks for two days and every monitor stayed green

A field disappeared from Shopify webhooks for two days and every monitor stayed green

Comments
9 min read
Why your vi.mock in Vitest silently does nothing

Why your vi.mock in Vitest silently does nothing

Comments
1 min read
A control named COVERAGE printed 4/4 at fourteen commits. The 4 was how many things it counts.

A control named COVERAGE printed 4/4 at fourteen commits. The 4 was how many things it counts.

5
Comments
3 min read
My end-to-end test wrote three blocks into the append-only log it was testing

My end-to-end test wrote three blocks into the append-only log it was testing

5
Comments
3 min read
Testing Next.js 15 Apps — The Setup I Actually Use

Testing Next.js 15 Apps — The Setup I Actually Use

Comments
5 min read
I pointed my UI-auditing tool at three sites it had never seen. All seven bugs it found were its own.

I pointed my UI-auditing tool at three sites it had never seen. All seven bugs it found were its own.

Comments
6 min read
My build record kept the word pass and dropped the number the verdict rested on

My build record kept the word pass and dropped the number the verdict rested on

5
Comments
4 min read
Break Your Agent on Purpose: A Failure-Injection Sandbox for Tool Boundaries

Break Your Agent on Purpose: A Failure-Injection Sandbox for Tool Boundaries

1
Comments 1
5 min read
108 TESTS PASSED. VERIFIED?

108 TESTS PASSED. VERIFIED?

8
Comments 1
3 min read
The AI said it verified the code. It hadn't.

The AI said it verified the code. It hadn't.

Comments 2
3 min read
Kill a workflow between the effect and its acknowledgement

Kill a workflow between the effect and its acknowledgement

Comments 1
4 min read
Building ReproSpec: Portable Evidence Bundles and Offline Replay for Node.js

Building ReproSpec: Portable Evidence Bundles and Offline Replay for Node.js

2
Comments
4 min read
Solution to Challenge 3 - Visual Testing with API Mocking

Solution to Challenge 3 - Visual Testing with API Mocking

1
Comments
7 min read
👋 Sign in for the ability to sort posts by relevant, latest, or top.