Adding tests for OpenPGP.

All tests are taken from gnuk. Reader is migrated from pyusb to pyscard.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>

tests/card_test_ds_counter2.py

@@ -0,0 +1,31 @@
+"""
+card_test_ds_counter.py - test the result of DS counter
+
+Copyright (C) 2021  g10 Code GmbH
+Author: NIIBE Yutaka <gniibe@fsij.org>
+
+This file is a part of Gnuk, a GnuPG USB Token implementation.
+
+Gnuk is free software: you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+Gnuk is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+
+from struct import pack
+from re import match, DOTALL
+from util import *
+from constants_for_test import *
+
+class Test_Card_DS_Counter(object):
+    def test_ds_counter_2(self, card):
+        c = get_data_object(card, 0x7a)
+        assert c == b'\x93\x03\x00\x00\x02'