fix tests

tests/functional/openlp_core_lib/test_image_manager.py

@@ -171,4 +171,4 @@ class TestImageManager(TestCase, TestMixin):
         self.lock.release()
         # The sleep time is adjusted in the test case.
         time.sleep(self.sleep_time)
-        return ''
+        return ''

tests/functional/openlp_core_ui/test_media.py

@@ -125,4 +125,4 @@ class TestMedia(TestCase, TestMixin):
 
             # THEN: the used_players should be an empty list, and the overridden player should be an empty string
             self.assertEqual(['vlc', 'webkit', 'phonon'], used_players, 'Used players should be correct')
-            self.assertEqual('vlc,webkit,phonon', overridden_player, 'Overridden player should be a string of players')
+            self.assertEqual('vlc,webkit,phonon', overridden_player, 'Overridden player should be a string of players')

tests/interfaces/openlp_core_common/test_historycombobox.py

@@ -62,4 +62,4 @@ class TestHistoryComboBox(TestCase, TestMixin):
         self.combo.addItem('test2')
 
         # THEN: The list of items should contain both strings.
-        self.assertEqual(self.combo.getItems(), ['test1', 'test2'])
+        self.assertEqual(self.combo.getItems(), ['test1', 'test2'])

tests/interfaces/openlp_core_ui/test_shortcutlistform.py

@@ -75,4 +75,4 @@ class TestShortcutform(TestCase, TestMixin):
             # THEN: The button should be changed.
             self.assertEqual(button.text(), text, "The text should match.")
             mocked_check_method.assert_called_once_with(True)
-            self.assertEqual(button.isEnabled(), enabled, "The button should be disabled.")
+            self.assertEqual(button.isEnabled(), enabled, "The button should be disabled.")