Add python test

Signed-off-by: Taylor Silva <tsilva@pivotal.io>

apps/python/tests.py

@@ -0,0 +1,12 @@
+import unittest
+
+def add_six(i):
+    return i + 6
+
+class TestAddSix(unittest.TestCase):
+
+    def test_add_six(self):
+        self.assertEqual(add_six(2), 8)
+
+if __name__ == '__main__':
+    unittest.main()