Machinist vs FactoryGirl - pros and cons

I'm working wit开发者_如何学Goh factory_girl, but looking at the machinist gem. Could you tell me please - what are the pros and cons of migrating to machinist? Have you compared those libs?

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Machinist was actually heavily inspired by factory_girl, but varied because machinist's author wanted a different syntax. Since then, factory_girl added different syntax layers to simulate other factory libraries (including machinist's "blueprint" syntax). In other words, both are extremely similar, just with a different default syntax. Personally, I use factory_girl.

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Actually, Machinist has a big advantage over Factory Girl: it doesn't hit the DB for associated objects. Look here:

Machinist vs Factory Girl: Machinist win!

Still not sure about how Machinist handles this, but anyhow it could be a huge performance boost for your test base.

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I've not used machinist before, but I can say factory_girl is quite easy to use, extend and rip out any rails-centricness it has to be used in any type of project.