diff --git a/test/math.t b/test/math.t
new file mode 100755
index 000000000..0ed2edef8
--- /dev/null
+++ b/test/math.t
@@ -0,0 +1,67 @@
+#!/usr/bin/env python2.7
+# -*- coding: utf-8 -*-
+
+import sys
+import os
+import unittest
+from datetime import datetime
+# Ensure python finds the local simpletap module
+sys.path.append(os.path.dirname(os.path.abspath(__file__)))
+
+from basetest import Task, TestCase
+
+
+class TestMath(TestCase):
+    @classmethod
+    def setUpClass(cls):
+        cls.t = Task()
+        cls.t.config("verbose", "nothing")
+        cls.t.config("dateformat", "YYYY-MM-DD")
+
+        # YYYY-12-21.
+        cls.when = "%d-12-21T23:59:59\n" % datetime.now().year
+
+        # Different ways of specifying YYYY-12-21.
+        cls.t(('add', 'one',   "due:eoy-10days"))
+        cls.t(('add', 'two',   "due:'eoy-10days'"))
+        cls.t(('add', 'three', "'due:eoy-10days'"))
+        cls.t(('add', 'four',  "due:'eoy - 10days'"))
+        cls.t(('add', 'five',  "'due:eoy - 10days'"))
+        cls.t(('add', 'six',   "'due:%d-12-31T23:59:59 - 10days'" % datetime.now().year))
+
+    def test_compact_unquoted(self):
+        """compact unquoted"""
+        code, out, err = self.t(('_get', '1.due'))
+        self.assertEqual(out, self.when)
+
+    def test_compact_value_quoted(self):
+        """compact value quoted"""
+        code, out, err = self.t(('_get', '2.due'))
+        self.assertEqual(out, self.when)
+
+#    def test_compact_arg_quoted(self):
+#        """compact arg quoted"""
+#        code, out, err = self.t(('_get', '3.due'))
+#        self.assertEqual(out, self.when)
+
+    def test_sparse_value_quoted(self):
+        """sparse value quoted"""
+        code, out, err = self.t(('_get', '4.due'))
+        self.assertEqual(out, self.when)
+
+#    def test_sparse_arg_quoted(self):
+#        """sparse arg quoted"""
+#        code, out, err = self.t(('_get', '5.due'))
+#        self.assertEqual(out, self.when)
+
+#    def test_sparse_arg_quoted_literal(self):
+#        """sparse arg quoted literal"""
+#        code, out, err = self.t(('_get', '6.due'))
+#        self.assertEqual(out, self.when)
+
+
+if __name__ == "__main__":
+    from simpletap import TAPTestRunner
+    unittest.main(testRunner=TAPTestRunner())
+
+# vim: ai sts=4 et sw=4