diff --git a/tests/test_core_modules.py b/tests/test_core_modules.py
new file mode 100644
index 0000000..47d3cf5
--- /dev/null
+++ b/tests/test_core_modules.py
@@ -0,0 +1,31 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import unittest
+
+from i3pystatus.core.modules import IntervalModule
+
+
+class IntervalModuleMetaTest(unittest.TestCase):
+
+    def test_no_settings(self):
+        class NoSettings(IntervalModule):
+            pass
+        self.assertEqual(NoSettings.settings, ('interval',))
+
+    def test_no_interval_setting(self):
+        class NoIntervalSetting(IntervalModule):
+            settings = (('option', 'desc'),)
+        self.assertEqual(NoIntervalSetting.settings,
+                         (('option', 'desc'), 'interval'))
+
+    def test_settings_with_interval(self):
+        class SettingsInteval(IntervalModule):
+            settings = ('option', 'interval')
+        self.assertEqual(SettingsInteval.settings, ('option', 'interval'))
+
+    def test_settings_with_interval_desc(self):
+        class SetttingsIntervalDesc(IntervalModule):
+            settings = (('interval', 'desc'),)
+        self.assertEqual(SetttingsIntervalDesc.settings,
+                         (('interval', 'desc'),))