Recently I had to find out how to test the output of a rails controller when the json format is specified. I’m using rspec by the way, but this should work in other frameworks as well.

My instinct, which was wrong, was to do what we do all over the rest of rails:

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Update: This has to do with Rails and not RSpec or RR

The road to TDD is a dangerous one.

I spent two hours diagnosing an issue that was simple to fix, but a devil to hunt down.

I am using RSpec with RR on a project, and noticed that when I ran my specs with autospec or rake, I had failing tests, but when I ran them individually with spec or textmate, everything was fine.

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There’s an interesting gotcha about testing Authlogic with factory_girl that I just ran into and spent a half hour trying to figure it out.

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