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Your Refactor Needs an Oracle: Characterization Tests vs. AI Diffs

Your Refactor Needs an Oracle: Characterization Tests vs. AI Diffs

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Comments
3 min read
The scanner read 2581 files and reported zero. The defect was on line 403.

The scanner read 2581 files and reported zero. The defect was on line 403.

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Comments
3 min read
Our own CDN was 403-ing the official OpenAI SDK, and our test suite couldn't see it

Our own CDN was 403-ing the official OpenAI SDK, and our test suite couldn't see it

Comments
7 min read
The Compiler Got 5% Slower. The Benchmark Called It a 10% Regression a Quarter of the Time.

The Compiler Got 5% Slower. The Benchmark Called It a 10% Regression a Quarter of the Time.

Comments 1
6 min read
O fim do 'Testado no Olho': Como automatizar a avaliação do seu RAG

O fim do 'Testado no Olho': Como automatizar a avaliação do seu RAG

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Comments
4 min read
Using Playwright projects and Page extensions to run tests on multiple testing environments

Using Playwright projects and Page extensions to run tests on multiple testing environments

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Comments
19 min read
Testing Stripe webhooks locally without ngrok

Testing Stripe webhooks locally without ngrok

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Comments 1
3 min read
The seed-script tax: how I generate realistic test data for Postgres, Playwright and mock APIs

The seed-script tax: how I generate realistic test data for Postgres, Playwright and mock APIs

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Comments 2
6 min read
Create, Then Verify: Turning Postman Requests into Real Workflow Tests

Create, Then Verify: Turning Postman Requests into Real Workflow Tests

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3 min read
Test-First AI Documentation: A Workflow That Keeps Generated Docs Honest

Test-First AI Documentation: A Workflow That Keeps Generated Docs Honest

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Comments 1
5 min read
Score Your Free AI Code Reviewer Before You Trust It: A Server-Side Experiment

Score Your Free AI Code Reviewer Before You Trust It: A Server-Side Experiment

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Comments 1
4 min read
Every test passed and the level was unwinnable

Every test passed and the level was unwinnable

Comments
6 min read
I built a tool to catch empty scans read as passes, and shipped it with an empty scan read as a pass

I built a tool to catch empty scans read as passes, and shipped it with an empty scan read as a pass

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Comments
2 min read
Four filters returned nothing and I read all four as nothing being there

Four filters returned nothing and I read all four as nothing being there

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Comments
3 min read
Invariant checks: the comment is the check you never wrote.

Invariant checks: the comment is the check you never wrote.

Comments
10 min read
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