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/conftest.py

@@ -0,0 +1,18 @@
+import pytest
+from card_reader import get_ccid_device
+from openpgp_card import OpenPGP_Card
+
+def pytest_addoption(parser):
+    parser.addoption("--reader", dest="reader", type=str, action="store",
+                     default="gnuk", help="specify reader: gnuk or gemalto")
+
+@pytest.fixture(scope="session")
+def card():
+    print()
+    print("Test start!")
+    reader = get_ccid_device()
+    card = OpenPGP_Card(reader)
+    card.cmd_select_openpgp()
+    yield card
+    del card
+    reader.ccid_power_off()