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testing

3 posts

Sep 22, 2026 · 21 min read
aillmprompt-engineeringtestingevalsclaudepromptdiff

Prompt Testing Is a Plinko Machine

My publishing agent wrote AI tells into real product listings. My editing agent cut the launch out of a launch video. Here's the eval harness I built to measure both.

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Feb 11, 2015 · 8 min read
testing

Cucumber.js and Meteor - The why and how of it

Learn why you should test your javascript code?

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Jan 6, 2010 · 4 min read
railstesting

Mocking and Stubbing can be evil

Thinking about writing mocks or stubs for rails test? Learn how to do it better...

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