Adding Test Classes
Expand the scope of your unit testing by adding test classes to a project.
In the lower-left corner of the test navigator, click the Add button.
In the pop-up menu, choose New Test Class.
Enter a name for the class, choose the superclass, and click Next.
Select a destination, group, and target, and click Create.
A new bundle and class are added to the test navigator, including stub implementations for the
Complete the stub implementations, and add other code as necessary.