Start working on the testsuite.

pelican/tests/test_settings.py

@@ -0,0 +1,16 @@
+from unittest2 import TestCase
+
+from pelican.settings import read_settings, DEFAULT_CONFIG
+
+class SettingsTest(TestCase):
+
+    def test_read_settings(self):
+        # providing no file should return the default values
+        settings = read_settings(None)
+        self.assertDictEqual(settings, DEFAULT_CONFIG)
+
+        # providing a file should read it, replace the default values and append 
+        # new values to the settings, if any
+        settings = read_settings(mock)
+        self.assertIn('key', settings)
+        self.assertEqual(settings['KEY'