Artificially lower the maximum allowable data length and attempt to
encrypt a larger object. Verify that the crypto handler aborts with and
exception.
+
+ The sibling to this test is test_restore_backup_max_file_length()
+ in test_delatar.py. Deltatar will transparently create a splitted object
+ with an increased IV file counter.
"""
new_max = 2187
crypto._testing_set_PDTCRYPT_MAX_OBJ_SIZE \