Add some test for settings. TODO fix save.

tests/test_settings.py

@@ -0,0 +1,17 @@
+
+def test_settings_group(plex):
+    assert plex.settings.group('general')
+
+
+def test_settings_get(plex):
+    # This is the value since it we havnt set any friendlyname
+    # plex just default to computer name but it NOT in the settings.
+    assert plex.settings.get('FriendlyName').value == ''
+
+
+def test_settings_get(plex):
+    cd = plex.settings.get('collectUsageData')
+    cd.set(False)
+    # Save works but since we reload asap the data isnt changed.
+    # or it might be our caching that does this. ## TODO
+    plex.settings.save()