diff --git a/tests/interfaces/__init__.py b/tests/interfaces/__init__.py
index 61c17dee3..7ba934446 100644
--- a/tests/interfaces/__init__.py
+++ b/tests/interfaces/__init__.py
@@ -1,3 +1,4 @@
+
 import sip
 sip.setapi('QDate', 2)
 sip.setapi('QDateTime', 2)
@@ -7,7 +8,9 @@ sip.setapi('QTime', 2)
 sip.setapi('QUrl', 2)
 sip.setapi('QVariant', 2)
 
-#from PyQt4 import QtGui
+import sys
 
-# Only one QApplication can be created. Use QtGui.QApplication.instance() when you need to "create" an QApplication.
-#application = QtGui.QApplication([])
+if sys.version_info[1] >= 3:
+    from unittest.mock import patch, MagicMock
+else:
+    from mock import patch, MagicMock
diff --git a/tests/interfaces/openlp_core_lib/test_pluginmanager.py b/tests/interfaces/openlp_core_lib/test_pluginmanager.py
index 184b04808..e0ee8bfec 100644
--- a/tests/interfaces/openlp_core_lib/test_pluginmanager.py
+++ b/tests/interfaces/openlp_core_lib/test_pluginmanager.py
@@ -7,12 +7,12 @@ import shutil
 from tempfile import mkstemp, mkdtemp
 from unittest import TestCase
 
-from mock import MagicMock
 from PyQt4 import QtGui
 
 from openlp.core.common import Settings
 from openlp.core.lib.pluginmanager import PluginManager
 from openlp.core.lib import Registry
+from tests.interfaces import MagicMock
 
 
 class TestPluginManager(TestCase):
diff --git a/tests/interfaces/openlp_core_ui/test_filerenamedialog.py b/tests/interfaces/openlp_core_ui/test_filerenamedialog.py
index 2c5948705..5e151da77 100644
--- a/tests/interfaces/openlp_core_ui/test_filerenamedialog.py
+++ b/tests/interfaces/openlp_core_ui/test_filerenamedialog.py
@@ -3,10 +3,11 @@
 """
 from unittest import TestCase
 
-from mock import MagicMock, patch
+from PyQt4 import QtGui, QtTest
+
 from openlp.core.lib import Registry
 from openlp.core.ui import filerenameform
-from PyQt4 import QtGui, QtTest
+from tests.interfaces import MagicMock, patch
 
 
 class TestStartFileRenameForm(TestCase):
diff --git a/tests/interfaces/openlp_core_ui/test_listpreviewwidget.py b/tests/interfaces/openlp_core_ui/test_listpreviewwidget.py
index 4d7044424..49d376797 100644
--- a/tests/interfaces/openlp_core_ui/test_listpreviewwidget.py
+++ b/tests/interfaces/openlp_core_ui/test_listpreviewwidget.py
@@ -3,12 +3,12 @@
 """
 
 from unittest import TestCase
-from mock import MagicMock, patch
 
 from PyQt4 import QtGui
 
 from openlp.core.lib import Registry, ServiceItem
 from openlp.core.ui import listpreviewwidget
+from tests.interfaces import MagicMock, patch
 from tests.utils.osdinteraction import read_service_from_file
 
 
diff --git a/tests/interfaces/openlp_core_ui/test_mainwindow.py b/tests/interfaces/openlp_core_ui/test_mainwindow.py
index 299f5db6d..0a5c77361 100644
--- a/tests/interfaces/openlp_core_ui/test_mainwindow.py
+++ b/tests/interfaces/openlp_core_ui/test_mainwindow.py
@@ -2,12 +2,12 @@
 Package to test the openlp.core.ui.mainwindow package.
 """
 from unittest import TestCase
-from mock import MagicMock, patch
 
 from PyQt4 import QtGui
 
 from openlp.core.lib import Registry
 from openlp.core.ui.mainwindow import MainWindow
+from tests.interfaces import MagicMock, patch
 
 
 class TestMainWindow(TestCase):
diff --git a/tests/interfaces/openlp_core_ui/test_servicemanager.py b/tests/interfaces/openlp_core_ui/test_servicemanager.py
index dbd49102c..e8b6df94f 100644
--- a/tests/interfaces/openlp_core_ui/test_servicemanager.py
+++ b/tests/interfaces/openlp_core_ui/test_servicemanager.py
@@ -3,12 +3,12 @@
 """
 
 from unittest import TestCase
-from mock import MagicMock, Mock, patch
 
 from PyQt4 import QtGui
 
 from openlp.core.lib import Registry, ScreenList, ServiceItem
 from openlp.core.ui.mainwindow import MainWindow
+from tests.interfaces import MagicMock, patch
 
 
 class TestServiceManager(TestCase):
@@ -41,7 +41,7 @@ class TestServiceManager(TestCase):
         # WHEN I have an empty display
         # THEN the count of items should be zero
         self.assertEqual(self.service_manager.service_manager_list.topLevelItemCount(), 0,
-            'The service manager list should be empty ')
+                         'The service manager list should be empty ')
 
     def context_menu_test(self):
         """
@@ -49,8 +49,8 @@ class TestServiceManager(TestCase):
         """
         # GIVEN: A service item added
         with patch('PyQt4.QtGui.QTreeWidget.itemAt') as mocked_item_at_method, \
-                patch('PyQt4.QtGui.QWidget.mapToGlobal') as mocked_map_to_global, \
-                patch('PyQt4.QtGui.QMenu.exec_') as mocked_exec:
+                patch('PyQt4.QtGui.QWidget.mapToGlobal'), \
+                patch('PyQt4.QtGui.QMenu.exec_'):
             mocked_item = MagicMock()
             mocked_item.parent.return_value = None
             mocked_item_at_method.return_value = mocked_item
@@ -61,12 +61,12 @@ class TestServiceManager(TestCase):
             self.service_manager.service_items = [{'service_item': service_item}]
             q_point = None
             # Mocked actions.
-            self.service_manager.edit_action.setVisible = Mock()
-            self.service_manager.create_custom_action.setVisible = Mock()
-            self.service_manager.maintain_action.setVisible = Mock()
-            self.service_manager.notes_action.setVisible = Mock()
-            self.service_manager.time_action.setVisible = Mock()
-            self.service_manager.auto_start_action.setVisible = Mock()
+            self.service_manager.edit_action.setVisible = MagicMock()
+            self.service_manager.create_custom_action.setVisible = MagicMock()
+            self.service_manager.maintain_action.setVisible = MagicMock()
+            self.service_manager.notes_action.setVisible = MagicMock()
+            self.service_manager.time_action.setVisible = MagicMock()
+            self.service_manager.auto_start_action.setVisible = MagicMock()
 
             # WHEN: Show the context menu.
             self.service_manager.context_menu(q_point)
diff --git a/tests/interfaces/openlp_core_ui/test_servicenotedialog.py b/tests/interfaces/openlp_core_ui/test_servicenotedialog.py
index 64e7ca722..336c94655 100644
--- a/tests/interfaces/openlp_core_ui/test_servicenotedialog.py
+++ b/tests/interfaces/openlp_core_ui/test_servicenotedialog.py
@@ -2,12 +2,12 @@
 Package to test the openlp.core.ui package.
 """
 from unittest import TestCase
-from mock import patch
 
 from PyQt4 import QtCore, QtGui, QtTest
 
 from openlp.core.lib import Registry
 from openlp.core.ui import servicenoteform
+from tests.interfaces import patch
 
 
 class TestStartNoteDialog(TestCase):
diff --git a/tests/interfaces/openlp_core_ui/test_settings_form.py b/tests/interfaces/openlp_core_ui/test_settings_form.py
index 7dd368e84..b9f032182 100644
--- a/tests/interfaces/openlp_core_ui/test_settings_form.py
+++ b/tests/interfaces/openlp_core_ui/test_settings_form.py
@@ -3,12 +3,11 @@ Package to test the openlp.core.lib.settingsform package.
 """
 from unittest import TestCase
 
-from mock import MagicMock, patch
-
 from PyQt4 import QtCore, QtTest, QtGui
 
 from openlp.core.ui import settingsform
 from openlp.core.lib import Registry, ScreenList
+from tests.interfaces import MagicMock, patch
 
 
 SCREEN = {
@@ -168,4 +167,4 @@ class TestSettingsForm(TestCase):
         # THEN: Images_regenerate should have been added.
         assert self.dummy1.call_count == 1, 'dummy1 should have been called once'
         assert self.dummy2.call_count == 1, 'dummy2 should have been called once'
-        assert self.dummy3.call_count == 1, 'dummy3 should have been called once'
\ No newline at end of file
+        assert self.dummy3.call_count == 1, 'dummy3 should have been called once'
diff --git a/tests/interfaces/openlp_core_ui/test_starttimedialog.py b/tests/interfaces/openlp_core_ui/test_starttimedialog.py
index 6542cc02e..de3d87910 100644
--- a/tests/interfaces/openlp_core_ui/test_starttimedialog.py
+++ b/tests/interfaces/openlp_core_ui/test_starttimedialog.py
@@ -2,13 +2,12 @@
 Package to test the openlp.core.ui package.
 """
 from unittest import TestCase
-from mock import MagicMock, patch
 
 from PyQt4 import QtCore, QtGui, QtTest
 
 from openlp.core.lib import Registry
 from openlp.core.ui import starttimeform
-
+from tests.interfaces import MagicMock, patch
 
 
 class TestStartTimeDialog(TestCase):
diff --git a/tests/interfaces/openlp_plugins/bibles/test_lib_http.py b/tests/interfaces/openlp_plugins/bibles/test_lib_http.py
index bd645f1ff..54ad3bec1 100644
--- a/tests/interfaces/openlp_plugins/bibles/test_lib_http.py
+++ b/tests/interfaces/openlp_plugins/bibles/test_lib_http.py
@@ -1,12 +1,11 @@
 """
     Package to test the openlp.plugin.bible.lib.https package.
 """
-
 from unittest import TestCase
-from mock import MagicMock
 
 from openlp.core.lib import Registry
 from openlp.plugins.bibles.lib.http import BGExtract, CWExtract
+from tests.interfaces import MagicMock
 
 
 class TestBibleHTTP(TestCase):
diff --git a/tests/interfaces/openlp_plugins/custom/forms/test_customform.py b/tests/interfaces/openlp_plugins/custom/forms/test_customform.py
index 61dbb822c..ffa3ec884 100644
--- a/tests/interfaces/openlp_plugins/custom/forms/test_customform.py
+++ b/tests/interfaces/openlp_plugins/custom/forms/test_customform.py
@@ -2,7 +2,6 @@
 Module to test the EditCustomForm.
 """
 from unittest import TestCase
-from mock import MagicMock, patch
 
 from PyQt4 import QtGui, QtTest, QtCore
 
@@ -10,6 +9,7 @@ from openlp.core.lib import Registry
 # Import needed due to import problems.
 from openlp.plugins.custom.lib.mediaitem import CustomMediaItem
 from openlp.plugins.custom.forms.editcustomform import EditCustomForm
+from tests.interfaces import MagicMock, patch
 
 
 class TestEditCustomForm(TestCase):
diff --git a/tests/interfaces/openlp_plugins/custom/forms/test_customslideform.py b/tests/interfaces/openlp_plugins/custom/forms/test_customslideform.py
index 0ed70ab62..406b7e8a4 100644
--- a/tests/interfaces/openlp_plugins/custom/forms/test_customslideform.py
+++ b/tests/interfaces/openlp_plugins/custom/forms/test_customslideform.py
@@ -2,12 +2,12 @@
 Module to test the EditCustomSlideForm.
 """
 from unittest import TestCase
-from mock import MagicMock, patch
 
 from PyQt4 import QtGui
 
 from openlp.core.lib import Registry
 from openlp.plugins.custom.forms.editcustomslideform import EditCustomSlideForm
+from tests.interfaces import MagicMock, patch
 
 
 class TestEditCustomSlideForm(TestCase):
diff --git a/tests/interfaces/openlp_plugins/songs/forms/test_editsongform.py b/tests/interfaces/openlp_plugins/songs/forms/test_editsongform.py
index 8ed953048..405ba5cf6 100644
--- a/tests/interfaces/openlp_plugins/songs/forms/test_editsongform.py
+++ b/tests/interfaces/openlp_plugins/songs/forms/test_editsongform.py
@@ -1,13 +1,13 @@
 """
 Package to test the openlp.plugins.songs.forms.editsongform package.
 """
-from mock import MagicMock
 from unittest import TestCase
 
 from PyQt4 import QtGui
 
 from openlp.core.lib import Registry
 from openlp.plugins.songs.forms.editsongform import EditSongForm
+from tests.interfaces import MagicMock
 
 
 class TestEditSongForm(TestCase):