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Your CI Runs Tests in Parallel. Your Test Data Doesn't Know That.

Your CI Runs Tests in Parallel. Your Test Data Doesn't Know That.

Comments
4 min read
The Deadline Used time.time(). Then the Laptop Slept.

The Deadline Used time.time(). Then the Laptop Slept.

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9 min read
Two bugs my green test suite could not see

Two bugs my green test suite could not see

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Comments 2
7 min read
Implementation is where judgements go to become invisible

How simple code hides past design choices

Implementation is where judgements go to become invisible

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Picked as gem Comments 30
10 min read
AI Is Making Code Cheap. Verification Is Becoming the Expensive Part

AI Is Making Code Cheap. Verification Is Becoming the Expensive Part

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Comments
5 min read
How to set up a UAT environment that doesn't lie to you

How to set up a UAT environment that doesn't lie to you

Comments
5 min read
I Replaced a Gate That Accepted Everyone With a Gate That Accepted No One. My Tests Couldn't Tell the Difference.

Tests passing while security fails completely

I Replaced a Gate That Accepted Everyone With a Gate That Accepted No One. My Tests Couldn't Tell the Difference.

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Comments 11
17 min read
I Trusted urljoin for 48 Hours. Every Request Lost the /v1 Prefix.

I Trusted urljoin for 48 Hours. Every Request Lost the /v1 Prefix.

Comments
6 min read
Reconciliation doesn't break in the arithmetic

Reconciliation doesn't break in the arithmetic

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10 min read
Best Virtual Sandbox for Third Party APIs

Best Virtual Sandbox for Third Party APIs

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10 min read
Your SKILL.md is production config. Test it like one.

Your SKILL.md is production config. Test it like one.

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Comments 3
3 min read
The check that never failed

The check that never failed

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10 min read
Comparing Promise.all, allSettled, any, and race when failure arrives first

Comparing Promise.all, allSettled, any, and race when failure arrives first

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Comments
3 min read
pandas turned my money column into dates, and 123 tests said nothing

pandas turned my money column into dates, and 123 tests said nothing

Comments
6 min read
My check returned the same result thirteen times. It was measuring the scenery.

My check returned the same result thirteen times. It was measuring the scenery.

Comments
3 min read
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