Testing Applications › Application Test Facility Considerations

Application Test Facility Considerations

The Application Test Facility does not support external subroutine logic such as DL/I calls, IMS calls, or CICS calls. You can only update DB2 databases during test executions.

There are two ways to test applications that use DL/I, IMS, or CICS calls:

• Create CA Gen procedure steps without the USE statements that call the external logic before generating and testing CA Gen load modules. After debugging the load modules, add the USE statements to the action diagrams.
• Create CA Gen procedure steps, including the USE statements in your action diagrams. Create the stubs for the external routines that do not use DL/I, IMS, or CICS calls. Then generate and test CA Gen load modules. After the load modules have been debugged, add the DL/I, IMS, or CICS calls to the stubs.

When testing batch applications, it is important to consider the amount of test data used. Since the Application Test Facility executes online, we recommend that you use a small volume of data when testing batch applications.

Note: For information about moving an application that is installed into the testing environment using the z/OS IT or Host Encyclopedia Construction to a different TSO System see the z/OS Implementation Toolset User Guide.