diff --git a/src/tests/test_l10n.py b/src/tests/test_l10n.py
new file mode 100644
index 00000000..c6988827
--- /dev/null
+++ b/src/tests/test_l10n.py
@@ -0,0 +1,24 @@
+"""Tests for l10n module"""
+
+import re
+import sys
+import time
+import unittest
+
+from pybitmessage import l10n
+
+
+class TestL10n(unittest.TestCase):
+    """A test case for L10N"""
+
+    def test_l10n_assumptions(self):
+        """Check the assumptions made while rewriting the l10n"""
+        self.assertFalse(re.search(r'\d', time.strftime("wrong")))
+        timestring_type = type(time.strftime(l10n.DEFAULT_TIME_FORMAT))
+        self.assertEqual(timestring_type, str)
+        if sys.version_info[0] == 2:
+            self.assertEqual(timestring_type, bytes)
+
+    def test_getWindowsLocale(self):
+        """Check the getWindowsLocale() docstring example"""
+        self.assertEqual(l10n.getWindowsLocale("en_EN.UTF-8"), "english")