Methods You Can Use to Create a Test Shell

You can use one of the following methods to test a TP on MVS:

Table 1. Methods For Testing TPs on APPC/MVS
Method	Description	Reference
APPCTEST Interface	A collection of panels, REXX procedures, and programs that allow you to call APPC/MVS test services from the "Foreground Selection Panel" under ISPF/PDF.	APPC Application Examples in MVS/ESA and OS/2
Direct calls to test services	A method by which your application can call APPC/MVS services directly. The test services divert the TP to a TSO/E address space.	Calling APPC/MVS Test Services from Your Application
TSO/E TEST command	A command that invokes APPC/MVS test services for assembler TPs only.	Using the TSO/E TEST Command to Test an Assembler Language TP

The APPCTEST interface has certain advantages over calling the APPC/MVS test services directly. For example, when using APPCTEST, you do not have to insert calls to APPC/MVS test services into your application code. Therefore, you can use the same application code during the test and production phases for your TP. See APPC Application Examples in MVS/ESA and OS/2 for a detailed explanation of the advantages of using APPCTEST.

The following section describes the APPC/MVS test services that you can invoke using any one of the methods described earlier.