BF(PY2): use mock module if no unittest.mock is available

Author: yarikoptic

test_abstract_factory.py

@@ -9,7 +9,10 @@
 else:
     import unittest
 
-from unittest.mock import patch
+try:
+    from unittest.mock import patch
+except ImportError:
+    from mock import patch
 
 
 class TestPetShop(unittest.TestCase):

test_bridge.py

@@ -9,7 +9,11 @@
 else:
     import unittest
 
-from unittest.mock import patch
+try:
+    from unittest.mock import patch
+except ImportError:
+    from mock import patch
+
 
 class BridgeTest(unittest.TestCase):
 

test_hsm.py

@@ -7,7 +7,10 @@
 else:
     import unittest
 
-from unittest.mock import patch
+try:
+    from unittest.mock import patch
+except ImportError:
+    from mock import patch
 
 
 class HsmMethodTest(unittest.TestCase):

test_observer.py

@@ -7,11 +7,14 @@
 
 if sys.version_info < (2, 7):
     import unittest2 as unittest
-
 else:
     import unittest
 
-from unittest.mock import patch
+try:
+    from unittest.mock import patch
+except ImportError:
+    from mock import patch
+
 
 class TestSubject(unittest.TestCase):
 

test_publish_subscribe.py

@@ -6,11 +6,14 @@
 
 if version_info < (2, 7):
     import unittest2 as unittest
-
 else:
     import unittest
 
-from unittest.mock import patch, call
+try:
+    from unittest.mock import patch, call
+except ImportError:
+    from mock import patch, call
+
 
 class TestProvider(unittest.TestCase):
     """