Add tests for helper.utils.convert_to_local

jellyfin_kodi/helper/utils.py

@@ -483,8 +483,16 @@ def convert_to_local(date):
         date = date.replace(tzinfo=tz.tzutc())
         date = date.astimezone(tz.tzlocal())
         # Bad metadata defaults to date 1-1-1.  Catch it and don't throw errors
-        if date.year == 1:
-            return str(date)
+        if date.year < 1900:
+            # FIXME(py2): strftime don't like dates below 1900
+            return "{:04d}-{:02d}-{:02d}T{:02d}:{:02d}:{:02d}".format(
+                date.year,
+                date.month,
+                date.day,
+                date.hour,
+                date.minute,
+                date.second,
+            )
         else:
             return date.strftime('%Y-%m-%dT%H:%M:%S')
     except Exception as error:

tests/test_helper_utils.py

@@ -1,17 +1,84 @@
 # -*- coding: utf-8 -*-
 from __future__ import division, absolute_import, print_function, unicode_literals
 
+import os
+import time
+
 import pytest
 
-from jellyfin_kodi.helper.utils import values
+from jellyfin_kodi.helper.utils import values, convert_to_local
 
-item1 = {'foo': 123, 'bar': 456, 'baz': 789}
+item1 = {"foo": 123, "bar": 456, "baz": 789}
 
 
-@pytest.mark.parametrize("item,keys,expected", [
-    (item1, ['{foo}', '{baz}'], [123, 789]),
-    (item1, ['{foo}', 'bar'], [123, 'bar']),
-    (item1, ['{foo}', 'bar', 321], [123, 'bar', 321]),
-])
+@pytest.mark.parametrize(
+    "item,keys,expected",
+    [
+        (item1, ["{foo}", "{baz}"], [123, 789]),
+        (item1, ["{foo}", "bar"], [123, "bar"]),
+        (item1, ["{foo}", "bar", 321], [123, "bar", 321]),
+    ],
+)
 def test_values(item, keys, expected):
     assert list(values(item, keys)) == expected
+
+
+class timezone_context:
+    tz = None
+
+    def __init__(self, tz):
+        self.tz = tz
+
+    def __enter__(self):
+        os.environ["TZ"] = self.tz
+        time.tzset()
+
+    def __exit__(self, *args, **kwargs):
+        del os.environ["TZ"]
+        time.tzset()
+
+
+@pytest.mark.parametrize(
+    "utctime,timezone,expected",
+    [
+        # Special case for malformed data from the server, see #212
+        ("0001-01-01T00:00:00.0000000Z", "UTC", "0001-01-01T00:00:00"),
+        ("Hello, error.", "Etc/UTC", "Hello, error."),
+        ("2023-09-21T23:54:24", "Etc/UTC", "2023-09-21T23:54:24"),
+        # See #725
+        ("1957-09-21T00:00:00Z", "Europe/Paris", "1957-09-21T01:00:00"),
+        ("1970-01-01T00:00:00", "Etc/UTC", "1970-01-01T00:00:00"),
+        ("1969-01-01T00:00:00", "Etc/UTC", "1969-01-01T00:00:00"),
+        ("1970-01-01T00:00:00", "Europe/Oslo", "1970-01-01T01:00:00"),
+        ("1969-01-01T00:00:00", "Europe/Oslo", "1969-01-01T01:00:00"),
+        ("2023-09-21T23:54:24", "Europe/Oslo", "2023-09-22T01:54:24"),
+        # End of DST in Europe
+        ("2023-10-29T00:00:00", "Europe/Oslo", "2023-10-29T02:00:00"),
+        ("2023-10-29T00:59:59", "Europe/Oslo", "2023-10-29T02:59:59"),
+        ("2023-10-29T01:00:00", "Europe/Oslo", "2023-10-29T02:00:00"),
+        # Start of DST in Europe
+        ("2023-03-26T00:59:59", "Europe/Oslo", "2023-03-26T01:59:59"),
+        ("2023-03-26T01:00:00", "Europe/Oslo", "2023-03-26T03:00:00"),
+        # Norway was in permanent summertime 1940-08-11 -> 1942-11-02
+        ("1941-06-24T00:00:00", "Europe/Oslo", "1941-06-24T02:00:00"),
+        ("1941-12-24T00:00:00", "Europe/Oslo", "1941-12-24T02:00:00"),
+        # Not going to test them all, but you get the point...
+        ("1917-07-20T00:00:00", "Europe/Oslo", "1917-07-20T01:00:00"),
+        ("1916-07-20T00:00:00", "Europe/Oslo", "1916-07-20T02:00:00"),
+        ("1915-07-20T00:00:00", "Europe/Oslo", "1915-07-20T01:00:00"),
+        # Some fun outside Europe too!
+        ("2023-03-11T03:30:00", "America/St_Johns", "2023-03-11T00:00:00"),
+        ("2023-03-13T02:30:00", "America/St_Johns", "2023-03-13T00:00:00"),
+        ("2023-11-04T02:30:00", "America/St_Johns", "2023-11-04T00:00:00"),
+        ("2023-11-06T03:30:00", "America/St_Johns", "2023-11-06T00:00:00"),
+        ("2023-12-24T00:00:00", "Australia/Eucla", "2023-12-24T08:45:00"),
+        ("2023-06-24T00:00:00", "Australia/Eucla", "2023-06-24T08:45:00"),
+        ("2023-12-24T00:00:00", "Australia/Broken_Hill", "2023-12-24T10:30:00"),
+        ("2023-06-24T00:00:00", "Australia/Broken_Hill", "2023-06-24T09:30:00"),
+        ("2023-10-31T00:00:00", "Pacific/Kiritimati", "2023-10-31T14:00:00"),
+        ("2023-10-31T00:00:00", "Pacific/Midway", "2023-10-30T13:00:00"),
+    ],
+)
+def test_convert_to_local(utctime, timezone, expected):
+    with timezone_context(timezone):
+        assert convert_to_local(utctime) == expected