There are a few classes to assist writing uDig tests.

In net.refractions.udig.ui.tests:

• UDIGTestUtil - Provides methods for:
  • Creating Features
  • Creating GeoResources
  • Creating Services
  • Waiting for UI events to complete

In net.refractions.udig.project.tests:

• MapTests - Provides methods for creating maps
• AbstractProjectTest - Super class for test cases. Attempts to clean up after running by clearing the project registry, maps, and projects

In net.refractions.udig.project.ui.tests:

• AbstractProjectUITest - Extends AbstractProjectTest and tries to close mapeditors in addition to what AbstractProjectTest does..