Links

Here are some links that I consider worth checking out. Things move fast in the iOS world, so I recommend doing regular Google searching to try to keep up.

Websites I Reference Frequently

Expecta
This is my current favorite unit testing matcher framework. It allows assertions to be much more readable, even better than OCHamcrest. It has built-in asynchronous support. It runs on top of XCTest or OCUnit, requiring little setup, and making tests easy to run.
OCMockito
This is my current favorite mock object framework. It currently does not support spy or partial mocks.
Kiwi
This used to be my new favorite unit testing framework. It uses BDD style specifications that allow tests to be more organized and hence more readable. It has built-in mock support. It runs on top of OCUnit, requiring little setup, and making tests easy to run.
KIF
This is a UI Automation framework that allows writing tests in Objective-C. While not really a unit testing framework, I’m currently exploring where it fits into the total testing strategy.

Other Recommended Websites

Apple’s OCUnit Unit Testing page
This is the official Xcode unit testing documentation. OCUnit (aka SenTestingKit) is built into Xcode, so this is the easiest to setup.
OCMock
This is a mock object framework. It supports most varieties of mocks including partial and nice mocks.
OCHamcrest
This is a set of unit testing matchers that improve upon the verify statements provided by OCUnit or XCTest.
GHUnit
This is an open source, 3rd party unit testing framework. It has native support for asynchronous tests. Tests run in a separate target, and can be run in the simulator or on a device. It can run OCUnit tests, providing the ability to work in conjunction with OCUnit. I use it to perform API (integration) tests.