How to speed up TDD flow with iOS and Objective-C/Xcode

Have been searching for experiences on TDD with Objective-C and iOS development.

Previous post about "string calculator"-kata in Objective-C was useful (thanks).

But it would be nice to learn even more fluent iPhone-TDD.

Do you have some experience of how to use UISpec (based on Rspec), iCuke (based on cucumber) or similar tools?

And if you also have got the flow going with autotesting (autoiphonetest.rb) like Paul did in his his blog, it would be very interesting feedback.

Here 开发者_运维问答is a good post: Test Driven Development in Objective-C with MacRuby

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I found the following screencast pretty useful http://vimeo.com/9394596 to get started.

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Perhaps this helps: http://pragprog.com/magazines/2010-07/tdd-on-iphone-diy