Fixed #12524 -- Clarified handling of pre-1000AD dates in datetime_safe (and thus, the serializers). Patch includes moving the datetime_safe tests into the utils regressiontests module. Thanks to gsf for the report and initial patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@12423 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/modeltests/serializers/models.py

@@ -277,6 +277,21 @@ None
 >>> print obj
 <DeserializedObject: serializers.Player(pk=1)>
 
+# Regression for #12524 -- dates before 1000AD get prefixed 0's on the year
+>>> a = Article.objects.create(
+...     pk=4,
+...     author = jane,
+...     headline = "Nobody remembers the early years",
+...     pub_date = datetime(1, 2, 3, 4, 5, 6))
+
+>>> serialized = serializers.serialize("json", [a])
+>>> print serialized
+[{"pk": 4, "model": "serializers.article", "fields": {"headline": "Nobody remembers the early years", "pub_date": "0001-02-03 04:05:06", "categories": [], "author": 2}}]
+
+>>> obj = list(serializers.deserialize("json", serialized))[0]
+>>> print obj.object.pub_date
+0001-02-03 04:05:06
+
 """}
 
 try: