Fix utcnow deprecation in tests

pyproject.toml

@@ -1,3 +1,9 @@
+[tool.pytest.ini_options]
+filterwarnings = [
+    # utcnow() is still covered on purpose: it remains supported and used
+    "ignore:datetime.datetime.utcnow:DeprecationWarning",
+]
+
 [tool.ruff.lint]
 select = [
     "D", # pydocstyle

test/test_faketime.py

@@ -10,6 +10,8 @@
 from libfaketime import fake_time
 from libfaketime import freeze_time
 
+UTC = datetime.timezone.utc
+
 
 class TestReexec:
     @patch("os.execve")
@@ -50,15 +52,24 @@ def test_fake_time_is_static(self):
     def test_fake_time_parses_easy_strings(self):
         assert datetime.datetime(2000, 1, 1, 10, 0, 5) == datetime.datetime.now()
         assert datetime.datetime(2000, 1, 1, 10, 0, 5) == datetime.datetime.utcnow()
+        assert datetime.datetime(
+            2000, 1, 1, 10, 0, 5, tzinfo=UTC
+        ) == datetime.datetime.now(UTC)
 
     def test_fake_time_parses_easy_strings_with_timezones(self):
         with fake_time("2000-01-01 10:00:05", tz_offset=3):
             assert datetime.datetime(2000, 1, 1, 13, 0, 5) == datetime.datetime.now()
             assert datetime.datetime(2000, 1, 1, 10, 0, 5) == datetime.datetime.utcnow()
+            assert datetime.datetime(
+                2000, 1, 1, 10, 0, 5, tzinfo=UTC
+            ) == datetime.datetime.now(UTC)
 
         with fake_time("2000-01-01 10:00:05", tz_offset=-3):
             assert datetime.datetime(2000, 1, 1, 7, 0, 5) == datetime.datetime.now()
             assert datetime.datetime(2000, 1, 1, 10, 0, 5) == datetime.datetime.utcnow()
+            assert datetime.datetime(
+                2000, 1, 1, 10, 0, 5, tzinfo=UTC
+            ) == datetime.datetime.now(UTC)
 
     @fake_time("march 1st, 2014 at 1:59pm")
     def test_fake_time_parses_tough_strings(self):

test/test_tz.py

@@ -7,20 +7,22 @@
 
 from libfaketime import fake_time
 
+UTC = datetime.timezone.utc
+
 
 def test_timezone_is_restored_after_context_manager_usage():
     """Check that timezones are restored when faketime context manager are closed.
 
     https://github.com/simon-weber/python-libfaketime/issues/43
     """
     now1 = datetime.datetime.now()
-    utcnow1 = datetime.datetime.utcnow()
+    utcnow1 = datetime.datetime.now(UTC)
 
     with fake_time(now1):
         datetime.datetime.now()
 
     now2 = datetime.datetime.now()
-    utcnow2 = datetime.datetime.utcnow()
+    utcnow2 = datetime.datetime.now(UTC)
 
     assert abs((now2 - now1).total_seconds()) < 10
     assert abs((utcnow2 - utcnow1).total_seconds()) < 10
@@ -37,6 +39,9 @@ def test_tzinfo_is_normalized():
         # The timeshift of Europe/Brussels is UTC+1 in January
         assert datetime.datetime.now() == datetime.datetime(2017, 1, 2, 15, 2)
         assert datetime.datetime.utcnow() == datetime.datetime(2017, 1, 2, 14, 2)
+        assert datetime.datetime.now(UTC) == datetime.datetime(
+            2017, 1, 2, 14, 2, tzinfo=UTC
+        )
 
 
 def test_block_setting_of_conflicting_tz_info():