1 files changed, 31 insertions, 0 deletions

diff --git a/test/test_td4277.py b/test/test_td4277.py
new file mode 100644
index 0000000..6f4ff9a
--- /dev/null
+++ b/test/test_td4277.py
@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+#
+# SPDX-License-Identifier: MIT
+"""Tests for the TD-4277 driver."""
+
+# pylint: disable=protected-access,missing-docstring
+
+import datetime
+
+from absl.testing import parameterized
+
+from glucometerutils.drivers import td4277
+from glucometerutils.support import lifescan
+from glucometerutils import exceptions
+
+
+class TestTD4277Nexus(parameterized.TestCase):
+
+    @parameterized.parameters(
+        (b'\x21\x24\x0e\x15', datetime.datetime(2018, 1, 1, 21, 14)),
+        (b'\x21\x26\x0e\x15', datetime.datetime(2019, 1, 1, 21, 14)),
+        (b'\x04\x27\x25\x0d', datetime.datetime(2019, 8, 4, 13, 37)),
+    )
+    def test_parse_datetime(self, message, date):
+        self.assertEqual(td4277._parse_datetime(message),
+                         date)
+
+    def test_making_message(self):
+        self.assertEqual(
+            td4277._make_packet(0x22, 0),
+            b'\x51\x22\x00\x00\x00\x00\xa3\x16')