The TSO/E TEST and TESTAUTH commands let you test assembler language programs, including command processors or other programs written in assembler. You can use the TEST command to test unauthorized programs including those that use access registers. You can use the TESTAUTH command to test APF-authorized programs. You can also test APPC/MVS transaction programs with the TEST and TESTAUTH commands. You must be defined to the RACF® TESTAUTH resource to use TESTAUTH. For more information about the functions you can perform using the TEST and TESTAUTH commands, see Diagnosis.