Mixin for tests

tests/helpers/testmixin.py

@@ -0,0 +1,54 @@
+# -*- coding: utf-8 -*-
+# vim: autoindent shiftwidth=4 expandtab textwidth=120 tabstop=4 softtabstop=4
+
+###############################################################################
+# OpenLP - Open Source Lyrics Projection                                      #
+# --------------------------------------------------------------------------- #
+# Copyright (c) 2008-2014 Raoul Snyman                                        #
+# Portions copyright (c) 2008-2014 Tim Bentley, Gerald Britton, Jonathan      #
+# Corwin, Samuel Findlay, Michael Gorven, Scott Guerrieri, Matthias Hub,      #
+# Meinert Jordan, Armin Köhler, Erik Lundin, Edwin Lunando, Brian T. Meyer.   #
+# Joshua Miller, Stevan Pettit, Andreas Preikschat, Mattias Põldaru,          #
+# Christian Richter, Philip Ridout, Simon Scudder, Jeffrey Smith,             #
+# Maikel Stuivenberg, Martin Thompson, Jon Tibble, Dave Warnock,              #
+# Frode Woldsund, Martin Zibricky, Patrick Zimmermann                         #
+# --------------------------------------------------------------------------- #
+# This program 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; version 2 of the License.                              #
+#                                                                             #
+# This program 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, write to the Free Software Foundation, Inc., 59  #
+# Temple Place, Suite 330, Boston, MA 02111-1307 USA                          #
+###############################################################################
+"""
+Mixin class with helpers
+"""
+import os
+from tempfile import mkstemp
+
+from PyQt4 import QtCore, QtGui
+from openlp.core.common import Settings
+
+
+class TestMixin(object):
+
+    def get_application(self):
+        old_app_instance = QtCore.QCoreApplication.instance()
+        if old_app_instance is None:
+            self.app = QtGui.QApplication([])
+        else:
+            self.app = old_app_instance
+
+    def build_settings(self):
+        Settings.setDefaultFormat(Settings.IniFormat)
+        fd, self.ini_file = mkstemp('.ini')
+        Settings().set_filename(self.ini_file)
+
+    def destroy_settings(self):
+        os.unlink(Settings().fileName())

tests/interfaces/openlp_core_ui/test_filerenamedialog.py

@@ -8,20 +8,16 @@ from PyQt4 import QtCore, QtGui, QtTest
 from openlp.core.common import Registry
 from openlp.core.ui import filerenameform
 from tests.interfaces import MagicMock, patch
+from tests.helpers.testmixin import TestMixin
 
-
-class TestStartFileRenameForm(TestCase):
+class TestStartFileRenameForm(TestCase, TestMixin):
 
     def setUp(self):
         """
         Create the UI
         """
         Registry.create()
-        old_app_instance = QtCore.QCoreApplication.instance()
-        if old_app_instance is None:
-            self.app = QtGui.QApplication([])
-        else:
-            self.app = old_app_instance
+        self.get_application()
         self.main_window = QtGui.QMainWindow()
         Registry().register('main_window', self.main_window)
         self.form = filerenameform.FileRenameForm()

tests/interfaces/openlp_core_ui/test_thememanager.py

@@ -29,18 +29,17 @@
 """
 Interface tests to test the themeManager class and related methods.
 """
-import os
 from unittest import TestCase
-from tempfile import mkstemp
 
 from PyQt4 import QtGui, QtCore
 
 from openlp.core.common import Registry, Settings
 from openlp.core.ui import ThemeManager
 from tests.functional import patch, MagicMock
+from tests.helpers.testmixin import TestMixin
 
 
-class TestThemeManager(TestCase):
+class TestThemeManager(TestCase, TestMixin):
     """
     Test the functions in the ThemeManager module
     """
@@ -48,9 +47,8 @@ class TestThemeManager(TestCase):
         """
         Create the UI
         """
-        Settings.setDefaultFormat(Settings.IniFormat)
-        fd, self.ini_file = mkstemp('.ini')
-        Settings().set_filename(self.ini_file)
+        self.build_settings()
+        self.get_application()
         old_app_instance = QtCore.QCoreApplication.instance()
         if old_app_instance is None:
             self.app = QtGui.QApplication([])
@@ -63,7 +61,7 @@ class TestThemeManager(TestCase):
         """
         Delete all the C++ objects at the end so that we don't have a segfault
         """
-        os.unlink(Settings().fileName())
+        self.destroy_settings()
 
     def initialise_test(self):
         """