diff -r 5ff1fc726848 -r c6bca38c1cbf parts/django/tests/regressiontests/serializers_regress/tests.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/parts/django/tests/regressiontests/serializers_regress/tests.py	Sat Jan 08 11:20:57 2011 +0530
@@ -0,0 +1,421 @@
+"""
+A test spanning all the capabilities of all the serializers.
+
+This class defines sample data and a dynamically generated
+test case that is capable of testing the capabilities of
+the serializers. This includes all valid data values, plus
+forward, backwards and self references.
+"""
+
+
+import datetime
+import decimal
+try:
+    from cStringIO import StringIO
+except ImportError:
+    from StringIO import StringIO
+
+from django.conf import settings
+from django.core import serializers, management
+from django.db import transaction, DEFAULT_DB_ALIAS
+from django.test import TestCase
+from django.utils.functional import curry
+
+from models import *
+
+# A set of functions that can be used to recreate
+# test data objects of various kinds.
+# The save method is a raw base model save, to make
+# sure that the data in the database matches the
+# exact test case.
+def data_create(pk, klass, data):
+    instance = klass(id=pk)
+    instance.data = data
+    models.Model.save_base(instance, raw=True)
+    return [instance]
+
+def generic_create(pk, klass, data):
+    instance = klass(id=pk)
+    instance.data = data[0]
+    models.Model.save_base(instance, raw=True)
+    for tag in data[1:]:
+        instance.tags.create(data=tag)
+    return [instance]
+
+def fk_create(pk, klass, data):
+    instance = klass(id=pk)
+    setattr(instance, 'data_id', data)
+    models.Model.save_base(instance, raw=True)
+    return [instance]
+
+def m2m_create(pk, klass, data):
+    instance = klass(id=pk)
+    models.Model.save_base(instance, raw=True)
+    instance.data = data
+    return [instance]
+
+def im2m_create(pk, klass, data):
+    instance = klass(id=pk)
+    models.Model.save_base(instance, raw=True)
+    return [instance]
+
+def im_create(pk, klass, data):
+    instance = klass(id=pk)
+    instance.right_id = data['right']
+    instance.left_id = data['left']
+    if 'extra' in data:
+        instance.extra = data['extra']
+    models.Model.save_base(instance, raw=True)
+    return [instance]
+
+def o2o_create(pk, klass, data):
+    instance = klass()
+    instance.data_id = data
+    models.Model.save_base(instance, raw=True)
+    return [instance]
+
+def pk_create(pk, klass, data):
+    instance = klass()
+    instance.data = data
+    models.Model.save_base(instance, raw=True)
+    return [instance]
+
+def inherited_create(pk, klass, data):
+    instance = klass(id=pk,**data)
+    # This isn't a raw save because:
+    #  1) we're testing inheritance, not field behaviour, so none
+    #     of the field values need to be protected.
+    #  2) saving the child class and having the parent created
+    #     automatically is easier than manually creating both.
+    models.Model.save(instance)
+    created = [instance]
+    for klass,field in instance._meta.parents.items():
+        created.append(klass.objects.get(id=pk))
+    return created
+
+# A set of functions that can be used to compare
+# test data objects of various kinds
+def data_compare(testcase, pk, klass, data):
+    instance = klass.objects.get(id=pk)
+    testcase.assertEqual(data, instance.data,
+         "Objects with PK=%d not equal; expected '%s' (%s), got '%s' (%s)" % (
+            pk, data, type(data), instance.data, type(instance.data))
+    )
+
+def generic_compare(testcase, pk, klass, data):
+    instance = klass.objects.get(id=pk)
+    testcase.assertEqual(data[0], instance.data)
+    testcase.assertEqual(data[1:], [t.data for t in instance.tags.order_by('id')])
+
+def fk_compare(testcase, pk, klass, data):
+    instance = klass.objects.get(id=pk)
+    testcase.assertEqual(data, instance.data_id)
+
+def m2m_compare(testcase, pk, klass, data):
+    instance = klass.objects.get(id=pk)
+    testcase.assertEqual(data, [obj.id for obj in instance.data.order_by('id')])
+
+def im2m_compare(testcase, pk, klass, data):
+    instance = klass.objects.get(id=pk)
+    #actually nothing else to check, the instance just should exist
+
+def im_compare(testcase, pk, klass, data):
+    instance = klass.objects.get(id=pk)
+    testcase.assertEqual(data['left'], instance.left_id)
+    testcase.assertEqual(data['right'], instance.right_id)
+    if 'extra' in data:
+        testcase.assertEqual(data['extra'], instance.extra)
+    else:
+        testcase.assertEqual("doesn't matter", instance.extra)
+
+def o2o_compare(testcase, pk, klass, data):
+    instance = klass.objects.get(data=data)
+    testcase.assertEqual(data, instance.data_id)
+
+def pk_compare(testcase, pk, klass, data):
+    instance = klass.objects.get(data=data)
+    testcase.assertEqual(data, instance.data)
+
+def inherited_compare(testcase, pk, klass, data):
+    instance = klass.objects.get(id=pk)
+    for key,value in data.items():
+        testcase.assertEqual(value, getattr(instance,key))
+
+# Define some data types. Each data type is
+# actually a pair of functions; one to create
+# and one to compare objects of that type
+data_obj = (data_create, data_compare)
+generic_obj = (generic_create, generic_compare)
+fk_obj = (fk_create, fk_compare)
+m2m_obj = (m2m_create, m2m_compare)
+im2m_obj = (im2m_create, im2m_compare)
+im_obj = (im_create, im_compare)
+o2o_obj = (o2o_create, o2o_compare)
+pk_obj = (pk_create, pk_compare)
+inherited_obj = (inherited_create, inherited_compare)
+
+test_data = [
+    # Format: (data type, PK value, Model Class, data)
+    (data_obj, 1, BooleanData, True),
+    (data_obj, 2, BooleanData, False),
+    (data_obj, 10, CharData, "Test Char Data"),
+    (data_obj, 11, CharData, ""),
+    (data_obj, 12, CharData, "None"),
+    (data_obj, 13, CharData, "null"),
+    (data_obj, 14, CharData, "NULL"),
+    (data_obj, 15, CharData, None),
+    # (We use something that will fit into a latin1 database encoding here,
+    # because that is still the default used on many system setups.)
+    (data_obj, 16, CharData, u'\xa5'),
+    (data_obj, 20, DateData, datetime.date(2006,6,16)),
+    (data_obj, 21, DateData, None),
+    (data_obj, 30, DateTimeData, datetime.datetime(2006,6,16,10,42,37)),
+    (data_obj, 31, DateTimeData, None),
+    (data_obj, 40, EmailData, "hovercraft@example.com"),
+    (data_obj, 41, EmailData, None),
+    (data_obj, 42, EmailData, ""),
+    (data_obj, 50, FileData, 'file:///foo/bar/whiz.txt'),
+#     (data_obj, 51, FileData, None),
+    (data_obj, 52, FileData, ""),
+    (data_obj, 60, FilePathData, "/foo/bar/whiz.txt"),
+    (data_obj, 61, FilePathData, None),
+    (data_obj, 62, FilePathData, ""),
+    (data_obj, 70, DecimalData, decimal.Decimal('12.345')),
+    (data_obj, 71, DecimalData, decimal.Decimal('-12.345')),
+    (data_obj, 72, DecimalData, decimal.Decimal('0.0')),
+    (data_obj, 73, DecimalData, None),
+    (data_obj, 74, FloatData, 12.345),
+    (data_obj, 75, FloatData, -12.345),
+    (data_obj, 76, FloatData, 0.0),
+    (data_obj, 77, FloatData, None),
+    (data_obj, 80, IntegerData, 123456789),
+    (data_obj, 81, IntegerData, -123456789),
+    (data_obj, 82, IntegerData, 0),
+    (data_obj, 83, IntegerData, None),
+    #(XX, ImageData
+    (data_obj, 90, IPAddressData, "127.0.0.1"),
+    (data_obj, 91, IPAddressData, None),
+    (data_obj, 100, NullBooleanData, True),
+    (data_obj, 101, NullBooleanData, False),
+    (data_obj, 102, NullBooleanData, None),
+    (data_obj, 110, PhoneData, "212-634-5789"),
+    (data_obj, 111, PhoneData, None),
+    (data_obj, 120, PositiveIntegerData, 123456789),
+    (data_obj, 121, PositiveIntegerData, None),
+    (data_obj, 130, PositiveSmallIntegerData, 12),
+    (data_obj, 131, PositiveSmallIntegerData, None),
+    (data_obj, 140, SlugData, "this-is-a-slug"),
+    (data_obj, 141, SlugData, None),
+    (data_obj, 142, SlugData, ""),
+    (data_obj, 150, SmallData, 12),
+    (data_obj, 151, SmallData, -12),
+    (data_obj, 152, SmallData, 0),
+    (data_obj, 153, SmallData, None),
+    (data_obj, 160, TextData, """This is a long piece of text.
+It contains line breaks.
+Several of them.
+The end."""),
+    (data_obj, 161, TextData, ""),
+    (data_obj, 162, TextData, None),
+    (data_obj, 170, TimeData, datetime.time(10,42,37)),
+    (data_obj, 171, TimeData, None),
+    (data_obj, 180, USStateData, "MA"),
+    (data_obj, 181, USStateData, None),
+    (data_obj, 182, USStateData, ""),
+    (data_obj, 190, XMLData, "<foo></foo>"),
+    (data_obj, 191, XMLData, None),
+    (data_obj, 192, XMLData, ""),
+
+    (generic_obj, 200, GenericData, ['Generic Object 1', 'tag1', 'tag2']),
+    (generic_obj, 201, GenericData, ['Generic Object 2', 'tag2', 'tag3']),
+
+    (data_obj, 300, Anchor, "Anchor 1"),
+    (data_obj, 301, Anchor, "Anchor 2"),
+    (data_obj, 302, UniqueAnchor, "UAnchor 1"),
+
+    (fk_obj, 400, FKData, 300), # Post reference
+    (fk_obj, 401, FKData, 500), # Pre reference
+    (fk_obj, 402, FKData, None), # Empty reference
+
+    (m2m_obj, 410, M2MData, []), # Empty set
+    (m2m_obj, 411, M2MData, [300,301]), # Post reference
+    (m2m_obj, 412, M2MData, [500,501]), # Pre reference
+    (m2m_obj, 413, M2MData, [300,301,500,501]), # Pre and Post reference
+
+    (o2o_obj, None, O2OData, 300), # Post reference
+    (o2o_obj, None, O2OData, 500), # Pre reference
+
+    (fk_obj, 430, FKSelfData, 431), # Pre reference
+    (fk_obj, 431, FKSelfData, 430), # Post reference
+    (fk_obj, 432, FKSelfData, None), # Empty reference
+
+    (m2m_obj, 440, M2MSelfData, []),
+    (m2m_obj, 441, M2MSelfData, []),
+    (m2m_obj, 442, M2MSelfData, [440, 441]),
+    (m2m_obj, 443, M2MSelfData, [445, 446]),
+    (m2m_obj, 444, M2MSelfData, [440, 441, 445, 446]),
+    (m2m_obj, 445, M2MSelfData, []),
+    (m2m_obj, 446, M2MSelfData, []),
+
+    (fk_obj, 450, FKDataToField, "UAnchor 1"),
+    (fk_obj, 451, FKDataToField, "UAnchor 2"),
+    (fk_obj, 452, FKDataToField, None),
+
+    (fk_obj, 460, FKDataToO2O, 300),
+
+    (im2m_obj, 470, M2MIntermediateData, None),
+
+    #testing post- and prereferences and extra fields
+    (im_obj, 480, Intermediate, {'right': 300, 'left': 470}),
+    (im_obj, 481, Intermediate, {'right': 300, 'left': 490}),
+    (im_obj, 482, Intermediate, {'right': 500, 'left': 470}),
+    (im_obj, 483, Intermediate, {'right': 500, 'left': 490}),
+    (im_obj, 484, Intermediate, {'right': 300, 'left': 470, 'extra': "extra"}),
+    (im_obj, 485, Intermediate, {'right': 300, 'left': 490, 'extra': "extra"}),
+    (im_obj, 486, Intermediate, {'right': 500, 'left': 470, 'extra': "extra"}),
+    (im_obj, 487, Intermediate, {'right': 500, 'left': 490, 'extra': "extra"}),
+
+    (im2m_obj, 490, M2MIntermediateData, []),
+
+    (data_obj, 500, Anchor, "Anchor 3"),
+    (data_obj, 501, Anchor, "Anchor 4"),
+    (data_obj, 502, UniqueAnchor, "UAnchor 2"),
+
+    (pk_obj, 601, BooleanPKData, True),
+    (pk_obj, 602, BooleanPKData, False),
+    (pk_obj, 610, CharPKData, "Test Char PKData"),
+#     (pk_obj, 620, DatePKData, datetime.date(2006,6,16)),
+#     (pk_obj, 630, DateTimePKData, datetime.datetime(2006,6,16,10,42,37)),
+    (pk_obj, 640, EmailPKData, "hovercraft@example.com"),
+#     (pk_obj, 650, FilePKData, 'file:///foo/bar/whiz.txt'),
+    (pk_obj, 660, FilePathPKData, "/foo/bar/whiz.txt"),
+    (pk_obj, 670, DecimalPKData, decimal.Decimal('12.345')),
+    (pk_obj, 671, DecimalPKData, decimal.Decimal('-12.345')),
+    (pk_obj, 672, DecimalPKData, decimal.Decimal('0.0')),
+    (pk_obj, 673, FloatPKData, 12.345),
+    (pk_obj, 674, FloatPKData, -12.345),
+    (pk_obj, 675, FloatPKData, 0.0),
+    (pk_obj, 680, IntegerPKData, 123456789),
+    (pk_obj, 681, IntegerPKData, -123456789),
+    (pk_obj, 682, IntegerPKData, 0),
+#     (XX, ImagePKData
+    (pk_obj, 690, IPAddressPKData, "127.0.0.1"),
+    # (pk_obj, 700, NullBooleanPKData, True),
+    # (pk_obj, 701, NullBooleanPKData, False),
+    (pk_obj, 710, PhonePKData, "212-634-5789"),
+    (pk_obj, 720, PositiveIntegerPKData, 123456789),
+    (pk_obj, 730, PositiveSmallIntegerPKData, 12),
+    (pk_obj, 740, SlugPKData, "this-is-a-slug"),
+    (pk_obj, 750, SmallPKData, 12),
+    (pk_obj, 751, SmallPKData, -12),
+    (pk_obj, 752, SmallPKData, 0),
+#     (pk_obj, 760, TextPKData, """This is a long piece of text.
+# It contains line breaks.
+# Several of them.
+# The end."""),
+#    (pk_obj, 770, TimePKData, datetime.time(10,42,37)),
+    (pk_obj, 780, USStatePKData, "MA"),
+#     (pk_obj, 790, XMLPKData, "<foo></foo>"),
+
+    (data_obj, 800, AutoNowDateTimeData, datetime.datetime(2006,6,16,10,42,37)),
+    (data_obj, 810, ModifyingSaveData, 42),
+
+    (inherited_obj, 900, InheritAbstractModel, {'child_data':37,'parent_data':42}),
+    (inherited_obj, 910, ExplicitInheritBaseModel, {'child_data':37,'parent_data':42}),
+    (inherited_obj, 920, InheritBaseModel, {'child_data':37,'parent_data':42}),
+
+    (data_obj, 1000, BigIntegerData, 9223372036854775807),
+    (data_obj, 1001, BigIntegerData, -9223372036854775808),
+    (data_obj, 1002, BigIntegerData, 0),
+    (data_obj, 1003, BigIntegerData, None),
+    (data_obj, 1004, LengthModel, 0),
+    (data_obj, 1005, LengthModel, 1),
+]
+
+# Because Oracle treats the empty string as NULL, Oracle is expected to fail
+# when field.empty_strings_allowed is True and the value is None; skip these
+# tests.
+if settings.DATABASES[DEFAULT_DB_ALIAS]['ENGINE'] == 'django.db.backends.oracle':
+    test_data = [data for data in test_data
+                 if not (data[0] == data_obj and
+                         data[2]._meta.get_field('data').empty_strings_allowed and
+                         data[3] is None)]
+
+# Regression test for #8651 -- a FK to an object iwth PK of 0
+# This won't work on MySQL since it won't let you create an object
+# with a primary key of 0,
+if settings.DATABASES[DEFAULT_DB_ALIAS]['ENGINE'] != 'django.db.backends.mysql':
+    test_data.extend([
+        (data_obj, 0, Anchor, "Anchor 0"),
+        (fk_obj, 465, FKData, 0),
+    ])
+
+# Dynamically create serializer tests to ensure that all
+# registered serializers are automatically tested.
+class SerializerTests(TestCase):
+    pass
+
+def serializerTest(format, self):
+
+    # Create all the objects defined in the test data
+    objects = []
+    instance_count = {}
+    for (func, pk, klass, datum) in test_data:
+        objects.extend(func[0](pk, klass, datum))
+
+    # Get a count of the number of objects created for each class
+    for klass in instance_count:
+        instance_count[klass] = klass.objects.count()
+
+    # Add the generic tagged objects to the object list
+    objects.extend(Tag.objects.all())
+
+    # Serialize the test database
+    serialized_data = serializers.serialize(format, objects, indent=2)
+
+    for obj in serializers.deserialize(format, serialized_data):
+        obj.save()
+
+    # Assert that the deserialized data is the same
+    # as the original source
+    for (func, pk, klass, datum) in test_data:
+        func[1](self, pk, klass, datum)
+
+    # Assert that the number of objects deserialized is the
+    # same as the number that was serialized.
+    for klass, count in instance_count.items():
+        self.assertEquals(count, klass.objects.count())
+
+def fieldsTest(format, self):
+    obj = ComplexModel(field1='first', field2='second', field3='third')
+    obj.save_base(raw=True)
+
+    # Serialize then deserialize the test database
+    serialized_data = serializers.serialize(format, [obj], indent=2, fields=('field1','field3'))
+    result = serializers.deserialize(format, serialized_data).next()
+
+    # Check that the deserialized object contains data in only the serialized fields.
+    self.assertEqual(result.object.field1, 'first')
+    self.assertEqual(result.object.field2, '')
+    self.assertEqual(result.object.field3, 'third')
+
+def streamTest(format, self):
+    obj = ComplexModel(field1='first',field2='second',field3='third')
+    obj.save_base(raw=True)
+
+    # Serialize the test database to a stream
+    stream = StringIO()
+    serializers.serialize(format, [obj], indent=2, stream=stream)
+
+    # Serialize normally for a comparison
+    string_data = serializers.serialize(format, [obj], indent=2)
+
+    # Check that the two are the same
+    self.assertEqual(string_data, stream.getvalue())
+    stream.close()
+
+for format in serializers.get_serializer_formats():
+    setattr(SerializerTests, 'test_' + format + '_serializer', curry(serializerTest, format))
+    setattr(SerializerTests, 'test_' + format + '_serializer_fields', curry(fieldsTest, format))
+    if format != 'python':
+        setattr(SerializerTests, 'test_' + format + '_serializer_stream', curry(streamTest, format))