Behavior driven development tests written in Objective-C

Kiwi:

The idea behind Kiwi is to have tests that are more readable than what is possible with the bundled test framework.

Tests (or rather specs) are written in Objective-C and run within the comfort of Xcode to provide a test environment that is as unobtrusive and seamless as possible in terms of running tests and error reporting.

Allen Ding is the author of Kiwi.