--- fido2-0.3.0/test/test_client.py.orig	2018-04-05 14:24:00.000000000 +0200
+++ fido2-0.3.0/test/test_client.py	2018-05-20 21:11:47.066881551 +0200
@@ -29,8 +29,11 @@
 
 from __future__ import absolute_import, unicode_literals
 
-import mock
 import unittest
+try:
+    import mock
+except:
+    from unittest import mock
 from threading import Event
 from binascii import a2b_hex
 from fido2.utils import sha256, websafe_decode
--- fido2-0.3.0/test/test_ctap1.py.orig	2018-04-05 14:24:00.000000000 +0200
+++ fido2-0.3.0/test/test_ctap1.py	2018-05-20 21:12:03.176881487 +0200
@@ -31,7 +31,10 @@ from fido2.ctap1 import CTAP1, ApduError
 from fido2.client import ClientData
 from binascii import a2b_hex
 import unittest
-import mock
+try:
+    import mock
+except:
+    from unittest import mock
 
 
 class TestCTAP1(unittest.TestCase):
--- fido2-0.3.0/test/test_ctap2.py.orig	2018-04-12 17:10:24.000000000 +0200
+++ fido2-0.3.0/test/test_ctap2.py	2018-05-20 21:12:17.790214668 +0200
@@ -37,7 +37,10 @@ from cryptography.hazmat.backends import
 from cryptography.hazmat.primitives.asymmetric import ec
 
 import unittest
-import mock
+try:
+    import mock
+except:
+    from unittest import mock
 
 _AAGUID = a2b_hex('F8A011F38C0A4D15800617111F9EDC7D')
 _INFO = a2b_hex('a60182665532465f5632684649444f5f325f3002826375766d6b686d61632d7365637265740350f8a011f38c0a4d15800617111f9edc7d04a462726bf5627570f564706c6174f469636c69656e7450696ef4051904b0068101')  # noqa
--- fido2-0.3.0/test/test_hid.py.orig	2018-04-05 14:24:00.000000000 +0200
+++ fido2-0.3.0/test/test_hid.py	2018-05-20 21:12:31.910214473 +0200
@@ -30,7 +30,10 @@ from __future__ import absolute_import,
 from fido2.ctap import CtapError
 from fido2.hid import CtapHidDevice
 import unittest
-import mock
+try:
+    import mock
+except:
+    from unittest import mock
 
 
 class HidTest(unittest.TestCase):