Renamed some tests and removed references to modeltests/regressiontests.

tests/utils_tests/timezone.py

@@ -0,0 +1,63 @@
+import copy
+import datetime
+import pickle
+from django.test.utils import override_settings
+from django.utils import timezone
+from django.utils.tzinfo import FixedOffset
+from django.utils import unittest
+
+
+EAT = FixedOffset(180)      # Africa/Nairobi
+ICT = FixedOffset(420)      # Asia/Bangkok
+
+
+class TimezoneTests(unittest.TestCase):
+
+    def test_localtime(self):
+        now = datetime.datetime.utcnow().replace(tzinfo=timezone.utc)
+        local_tz = timezone.LocalTimezone()
+        local_now = timezone.localtime(now, local_tz)
+        self.assertEqual(local_now.tzinfo, local_tz)
+
+    def test_now(self):
+        with override_settings(USE_TZ=True):
+            self.assertTrue(timezone.is_aware(timezone.now()))
+        with override_settings(USE_TZ=False):
+            self.assertTrue(timezone.is_naive(timezone.now()))
+
+    def test_override(self):
+        default = timezone.get_default_timezone()
+        try:
+            timezone.activate(ICT)
+
+            with timezone.override(EAT):
+                self.assertIs(EAT, timezone.get_current_timezone())
+            self.assertIs(ICT, timezone.get_current_timezone())
+
+            with timezone.override(None):
+                self.assertIs(default, timezone.get_current_timezone())
+            self.assertIs(ICT, timezone.get_current_timezone())
+
+            timezone.deactivate()
+
+            with timezone.override(EAT):
+                self.assertIs(EAT, timezone.get_current_timezone())
+            self.assertIs(default, timezone.get_current_timezone())
+
+            with timezone.override(None):
+                self.assertIs(default, timezone.get_current_timezone())
+            self.assertIs(default, timezone.get_current_timezone())
+        finally:
+            timezone.deactivate()
+
+    def test_copy(self):
+        self.assertIsInstance(copy.copy(timezone.UTC()), timezone.UTC)
+        self.assertIsInstance(copy.copy(timezone.LocalTimezone()), timezone.LocalTimezone)
+
+    def test_deepcopy(self):
+        self.assertIsInstance(copy.deepcopy(timezone.UTC()), timezone.UTC)
+        self.assertIsInstance(copy.deepcopy(timezone.LocalTimezone()), timezone.LocalTimezone)
+
+    def test_pickling_unpickling(self):
+        self.assertIsInstance(pickle.loads(pickle.dumps(timezone.UTC())), timezone.UTC)
+        self.assertIsInstance(pickle.loads(pickle.dumps(timezone.LocalTimezone())), timezone.LocalTimezone)