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Articles about mock objects
These articles, posts, and papers are not specifically about OCMock, but they are a good source of information on how to use a mock framework effectively.
A post that describes to common situations in which using mock objects may not be a great idea.
Good discussion of when to use mock objects.
Mock Roles, not Objects [PDF]
A paper by the people who pioneered the use of mock objects. Covers a lot of the thinking behind sensible user of mock objects.
Tutorials for OCMock
The tutorials listed here were written independently and may or may not be up-to-date. Most of them are likely to use the traditional syntax, not the modern syntax introduced with OCMock 3.
Great introductory tutorial for OCMock.
Short post that discusses several options to include OCMock in your projects. Includes a discussion of git submodules and CocoaPods.
Tutorial that discusses several more advanced aspects of using OCMock, including partial mocks.
New tutorial, written in May 2013 for Xcode 4.6. Has a detailed description of the setup required for an iOS project and a longer example that shows how to test controllers and a non-trivial calculation.
Good introductory tutorial explaining the most used features. The installation notes in the first paragraph are not up-to-date anymore, please follow the instructions in this site instead.
General tutorial that explains in detail how to set up a project for testing with OCUnit and OCMock. Also shows how partial mocks can be used to substitute individual methods in a test.
A tutorial that shows how to test Cocoa controller objects without having to load the user interface from the NIB file. The objects defined in InterfaceBuilder are replaced with mocks.
The title says it all. Uses categories to allow substitution of system-provided singletons.
OCMock integrates with Hamcrest but sometimes it can be easier to write a constraint using the API used by OCMock's built-in constraints. This tutorial shows how it's done. Applies to iPhone and Cocoa development.
This tutorial shows how to use OCMock as a framework for an iPhone project. There are some limitations to this approach. Please visit the "iPhone/iOS" tab for more information.
This tutorial describes a classic use case for mock objects, it shows how to replace a dependency on an external call with a mock object that returns canned values. This tutorial is in German.