Converted the model_regress doctests into unittests. We have always been at war with doctests.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@14614 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/model_regress/tests.py

@@ -1,23 +1,166 @@
-from django.core.exceptions import ValidationError
-from django.test import TestCase
+import datetime
+from operator import attrgetter
 
-from models import Worker, NonAutoPK
+from django.test import TestCase, skipUnlessDBFeature
+from django.utils import tzinfo
+
+from models import (Worker, Article, Party, Event, Department,
+    BrokenUnicodeMethod, NonAutoPK)
 
 
-class RelatedModelOrderedLookupTest(TestCase):
-    """
-    Regression test for #10153: foreign key __gte and __lte lookups.
-    """
 
+class ModelTests(TestCase):
     # The bug is that the following queries would raise:
     # "TypeError: Related Field has invalid lookup: gte"
-
     def test_related_gte_lookup(self):
+        """
+        Regression test for #10153: foreign key __gte lookups.
+        """
         Worker.objects.filter(department__gte=0)
 
     def test_related_lte_lookup(self):
+        """
+        Regression test for #10153: foreign key __lte lookups.
+        """
         Worker.objects.filter(department__lte=0)
 
+    def test_empty_choice(self):
+        # NOTE: Part of the regression test here is merely parsing the model
+        # declaration. The verbose_name, in particular, did not always work.
+        a = Article.objects.create(
+            headline="Look at me!", pub_date=datetime.datetime.now()
+        )
+        # An empty choice field should return None for the display name.
+        self.assertIs(a.get_status_display(), None)
+
+        # Empty strings should be returned as Unicode
+        a = Article.objects.get(pk=a.pk)
+        self.assertEqual(a.misc_data, u'')
+        self.assertIs(type(a.misc_data), unicode)
+
+    def test_long_textfield(self):
+        # TextFields can hold more than 4000 characters (this was broken in
+        # Oracle).
+        a = Article.objects.create(
+            headline="Really, really big",
+            pub_date=datetime.datetime.now(),
+            article_text = "ABCDE" * 1000
+        )
+        a = Article.objects.get(pk=a.pk)
+        self.assertEqual
+        (len(a.article_text), 5000)
+
+    def test_date_lookup(self):
+        # Regression test for #659
+        Party.objects.create(when=datetime.datetime(1999, 12, 31))
+        Party.objects.create(when=datetime.datetime(1998, 12, 31))
+        Party.objects.create(when=datetime.datetime(1999, 1, 1))
+        self.assertQuerysetEqual(
+            Party.objects.filter(when__month=2), []
+        )
+        self.assertQuerysetEqual(
+            Party.objects.filter(when__month=1), [
+                datetime.date(1999, 1, 1)
+            ],
+            attrgetter("when")
+        )
+        self.assertQuerysetEqual(
+            Party.objects.filter(when__month=12), [
+                datetime.date(1999, 12, 31),
+                datetime.date(1998, 12, 31),
+            ],
+            attrgetter("when")
+        )
+        self.assertQuerysetEqual(
+            Party.objects.filter(when__year=1998), [
+                datetime.date(1998, 12, 31),
+            ],
+            attrgetter("when")
+        )
+        # Regression test for #8510
+        self.assertQuerysetEqual(
+            Party.objects.filter(when__day="31"), [
+                datetime.date(1999, 12, 31),
+                datetime.date(1998, 12, 31),
+            ],
+            attrgetter("when")
+        )
+        self.assertQuerysetEqual(
+            Party.objects.filter(when__month="12"), [
+                datetime.date(1999, 12, 31),
+                datetime.date(1998, 12, 31),
+            ],
+            attrgetter("when")
+        )
+        self.assertQuerysetEqual(
+            Party.objects.filter(when__year="1998"), [
+                datetime.date(1998, 12, 31),
+            ],
+            attrgetter("when")
+        )
+
+    def test_date_filter_null(self):
+        # Date filtering was failing with NULL date values in SQLite
+        # (regression test for #3501, amongst other things).
+        Party.objects.create(when=datetime.datetime(1999, 1, 1))
+        Party.objects.create()
+        p = Party.objects.filter(when__month=1)[0]
+        self.assertEqual(p.when, datetime.date(1999, 1, 1))
+        self.assertQuerysetEqual(
+            Party.objects.filter(pk=p.pk).dates("when", "month"), [
+                1
+            ],
+            attrgetter("month")
+        )
+
+    def test_get_next_prev_by_field(self):
+        # Check that get_next_by_FIELD and get_previous_by_FIELD don't crash
+        # when we have usecs values stored on the database
+        #
+        # It crashed after the Field.get_db_prep_* refactor, because on most
+        # backends DateTimeFields supports usecs, but DateTimeField.to_python
+        # didn't recognize them. (Note that
+        # Model._get_next_or_previous_by_FIELD coerces values to strings)
+        Event.objects.create(when=datetime.datetime(2000, 1, 1, 16, 0, 0))
+        Event.objects.create(when=datetime.datetime(2000, 1, 1, 6, 1, 1))
+        Event.objects.create(when=datetime.datetime(2000, 1, 1, 13, 1, 1))
+        e = Event.objects.create(when=datetime.datetime(2000, 1, 1, 12, 0, 20, 24))
+
+        self.assertEqual(
+            e.get_next_by_when().when, datetime.datetime(2000, 1, 1, 13, 1, 1)
+        )
+        self.assertEqual(
+            e.get_previous_by_when().when, datetime.datetime(2000, 1, 1, 6, 1, 1)
+        )
+
+    def test_primary_key_foreign_key_types(self):
+        # Check Department and Worker (non-default PK type)
+        d = Department.objects.create(id=10, name="IT")
+        w = Worker.objects.create(department=d, name="Full-time")
+        self.assertEqual(unicode(w), "Full-time")
+
+    def test_broken_unicode(self):
+        # Models with broken unicode methods should still have a printable repr
+        b = BrokenUnicodeMethod.objects.create(name="Jerry")
+        self.assertEqual(repr(b), "<BrokenUnicodeMethod: [Bad Unicode data]>")
+
+    @skipUnlessDBFeature("supports_timezones")
+    def test_timezones(self):
+        # Saving an updating with timezone-aware datetime Python objects.
+        # Regression test for #10443.
+        # The idea is that all these creations and saving should work without
+        # crashing. It's not rocket science.
+        dt1 = datetime.datetime(2008, 8, 31, 16, 20, tzinfo=tzinfo.FixedOffset(600))
+        dt2 = datetime.datetime(2008, 8, 31, 17, 20, tzinfo=tzinfo.FixedOffset(600))
+        obj = Article.objects.create(
+            headline="A headline", pub_date=dt1, article_text="foo"
+        )
+        obj.pub_date = dt2
+        obj.save()
+        self.assertEqual(
+            Article.objects.filter(headline="A headline").update(pub_date=dt1),
+            1
+        )
 
 class ModelValidationTest(TestCase):
     def test_pk_validation(self):