ACS test usage

Because a DSNTYPE of EXT cannot be specified in JCL, ACS test for an data set allocated in extended format has some considerations.

To test data class only, you should not specify DSNTYPE = EXT for extended format data sets, because the value of DSNTYPE in the Data Class ACS routine is never set to EXT during actual ACS processing.

To test more than just the Data Class for extended format data sets, you can choose to test the Data Class ACS routine with a separate test case that has no DSNTYPE specified. To test other constructs, such as management class, storage class and storage group, you should use a test case with DSNTYPE set to EXT.

Note: ACS read-only variables are not defaulted from Data Class when the ACS test case is run (unlike actual ACS processing).