Test all works like the same command in the meta-menu (section 2.1.9). It matches all fields of all records with their constraint patterns. Testing is started with the current record. When a mismatch occurs, the record is shown. The cursor points to the mismatching field and a message is given. You can choose to search for the next mismatch, search for the Next record with a mismatch, update the current record, or exit testing.