In Finder, add OCMock version 2.2.1
In Finder add file License.txt into OCMock folder.
In Xcode project, drag folder OCMock from Finder into Xcode project navigator, add files to test target.
In Xcode project, test target Build phases add framework / other libOCMock.a. Then in project navigator drag libOCMock.a into Frameworks group.
For OCMock, in target LogicTests / Build Settings add header search path.

Reference:
http://ocmock.org/ios/
For OCMock, in target NetworkingIsFunTests / Build Settings / other linker flags add 3 entries: -force_load, "$(SRCROOT)/libOCMock.a", -ObjC

The project.pbxproj file shows these entries quoted and escaped.
Reference:
http://ocmock.org/ios/
Add ConvertViewController_Private to expose some properties and methods for use by unit tests. Add ConvertViewControllerTests.