You can generally use two different approaches for testing an ABL application written to support an OpenEdge Web service:

  • Unit testing from ABL — From ABL, you can access the server-side functionality directly or as an OpenEdge Web service.
  • Testing from a Web service client — From a Web service client using any platform, including ABL, you can thoroughly test the Web service as it might behave in the environment in which you will deploy it.

The approach that you take depends on your preferences, needs, and experience.