[1.9.x] Moved remaining of serializers_regress to serializers tests

Backport of 4908222ac from master.

2 files changed, 734 insertions, 0 deletions

diff --git a/tests/serializers/models.py b/tests/serializers/models.py
index 078fa05722..023a2e8f85 100644
--- a/tests/serializers/models.py
+++ b/tests/serializers/models.py
@@ -9,6 +9,10 @@ from __future__ import unicode_literals
 
 from decimal import Decimal
 
+from django.contrib.contenttypes.fields import (
+    GenericForeignKey, GenericRelation,
+)
+from django.contrib.contenttypes.models import ContentType
 from django.db import models
 from django.utils import six
 from django.utils.encoding import python_2_unicode_compatible
@@ -198,3 +202,309 @@ class NaturalKeyAnchor(models.Model):
 
 class FKDataNaturalKey(models.Model):
     data = models.ForeignKey(NaturalKeyAnchor, models.SET_NULL, null=True)
+
+
+# ******** Models for test_data.py ***********
+# The following classes are for testing basic data marshalling, including
+# NULL values, where allowed.
+# The basic idea is to have a model for each Django data type.
+
+class BinaryData(models.Model):
+    data = models.BinaryField(null=True)
+
+
+class BooleanData(models.Model):
+    data = models.BooleanField(default=False)
+
+
+class CharData(models.Model):
+    data = models.CharField(max_length=30, null=True)
+
+
+class DateData(models.Model):
+    data = models.DateField(null=True)
+
+
+class DateTimeData(models.Model):
+    data = models.DateTimeField(null=True)
+
+
+class DecimalData(models.Model):
+    data = models.DecimalField(null=True, decimal_places=3, max_digits=5)
+
+
+class EmailData(models.Model):
+    data = models.EmailField(null=True)
+
+
+class FileData(models.Model):
+    data = models.FileField(null=True, upload_to='/foo/bar')
+
+
+class FilePathData(models.Model):
+    data = models.FilePathField(null=True)
+
+
+class FloatData(models.Model):
+    data = models.FloatField(null=True)
+
+
+class IntegerData(models.Model):
+    data = models.IntegerField(null=True)
+
+
+class BigIntegerData(models.Model):
+    data = models.BigIntegerField(null=True)
+
+# class ImageData(models.Model):
+#    data = models.ImageField(null=True)
+
+
+class GenericIPAddressData(models.Model):
+    data = models.GenericIPAddressField(null=True)
+
+
+class NullBooleanData(models.Model):
+    data = models.NullBooleanField(null=True)
+
+
+class PositiveIntegerData(models.Model):
+    data = models.PositiveIntegerField(null=True)
+
+
+class PositiveSmallIntegerData(models.Model):
+    data = models.PositiveSmallIntegerField(null=True)
+
+
+class SlugData(models.Model):
+    data = models.SlugField(null=True)
+
+
+class SmallData(models.Model):
+    data = models.SmallIntegerField(null=True)
+
+
+class TextData(models.Model):
+    data = models.TextField(null=True)
+
+
+class TimeData(models.Model):
+    data = models.TimeField(null=True)
+
+
+class Tag(models.Model):
+    """A tag on an item."""
+    data = models.SlugField()
+    content_type = models.ForeignKey(ContentType, models.CASCADE)
+    object_id = models.PositiveIntegerField()
+
+    content_object = GenericForeignKey()
+
+    class Meta:
+        ordering = ["data"]
+
+
+class GenericData(models.Model):
+    data = models.CharField(max_length=30)
+
+    tags = GenericRelation(Tag)
+
+# The following test classes are all for validation
+# of related objects; in particular, forward, backward,
+# and self references.
+
+
+class Anchor(models.Model):
+    """This is a model that can be used as
+    something for other models to point at"""
+
+    data = models.CharField(max_length=30)
+
+    class Meta:
+        ordering = ('id',)
+
+
+class UniqueAnchor(models.Model):
+    """This is a model that can be used as
+    something for other models to point at"""
+
+    data = models.CharField(unique=True, max_length=30)
+
+
+class FKData(models.Model):
+    data = models.ForeignKey(Anchor, models.SET_NULL, null=True)
+
+
+class M2MData(models.Model):
+    data = models.ManyToManyField(Anchor)
+
+
+class O2OData(models.Model):
+    # One to one field can't be null here, since it is a PK.
+    data = models.OneToOneField(Anchor, models.CASCADE, primary_key=True)
+
+
+class FKSelfData(models.Model):
+    data = models.ForeignKey('self', models.CASCADE, null=True)
+
+
+class M2MSelfData(models.Model):
+    data = models.ManyToManyField('self', symmetrical=False)
+
+
+class FKDataToField(models.Model):
+    data = models.ForeignKey(UniqueAnchor, models.SET_NULL, null=True, to_field='data')
+
+
+class FKDataToO2O(models.Model):
+    data = models.ForeignKey(O2OData, models.SET_NULL, null=True)
+
+
+class M2MIntermediateData(models.Model):
+    data = models.ManyToManyField(Anchor, through='Intermediate')
+
+
+class Intermediate(models.Model):
+    left = models.ForeignKey(M2MIntermediateData, models.CASCADE)
+    right = models.ForeignKey(Anchor, models.CASCADE)
+    extra = models.CharField(max_length=30, blank=True, default="doesn't matter")
+
+# The following test classes are for validating the
+# deserialization of objects that use a user-defined
+# field as the primary key.
+# Some of these data types have been commented out
+# because they can't be used as a primary key on one
+# or all database backends.
+
+
+class BooleanPKData(models.Model):
+    data = models.BooleanField(primary_key=True, default=False)
+
+
+class CharPKData(models.Model):
+    data = models.CharField(max_length=30, primary_key=True)
+
+# class DatePKData(models.Model):
+#    data = models.DateField(primary_key=True)
+
+# class DateTimePKData(models.Model):
+#    data = models.DateTimeField(primary_key=True)
+
+
+class DecimalPKData(models.Model):
+    data = models.DecimalField(primary_key=True, decimal_places=3, max_digits=5)
+
+
+class EmailPKData(models.Model):
+    data = models.EmailField(primary_key=True)
+
+# class FilePKData(models.Model):
+#    data = models.FileField(primary_key=True, upload_to='/foo/bar')
+
+
+class FilePathPKData(models.Model):
+    data = models.FilePathField(primary_key=True)
+
+
+class FloatPKData(models.Model):
+    data = models.FloatField(primary_key=True)
+
+
+class IntegerPKData(models.Model):
+    data = models.IntegerField(primary_key=True)
+
+# class ImagePKData(models.Model):
+#    data = models.ImageField(primary_key=True)
+
+
+class GenericIPAddressPKData(models.Model):
+    data = models.GenericIPAddressField(primary_key=True)
+
+# This is just a Boolean field with null=True, and we can't test a PK value of NULL.
+# class NullBooleanPKData(models.Model):
+#     data = models.NullBooleanField(primary_key=True)
+
+
+class PositiveIntegerPKData(models.Model):
+    data = models.PositiveIntegerField(primary_key=True)
+
+
+class PositiveSmallIntegerPKData(models.Model):
+    data = models.PositiveSmallIntegerField(primary_key=True)
+
+
+class SlugPKData(models.Model):
+    data = models.SlugField(primary_key=True)
+
+
+class SmallPKData(models.Model):
+    data = models.SmallIntegerField(primary_key=True)
+
+# class TextPKData(models.Model):
+#     data = models.TextField(primary_key=True)
+
+# class TimePKData(models.Model):
+#    data = models.TimeField(primary_key=True)
+
+
+class UUIDData(models.Model):
+    data = models.UUIDField(primary_key=True)
+
+
+class FKToUUID(models.Model):
+    data = models.ForeignKey(UUIDData, models.CASCADE)
+
+
+# Tests for handling fields with pre_save functions, or
+# models with save functions that modify data
+
+
+class AutoNowDateTimeData(models.Model):
+    data = models.DateTimeField(null=True, auto_now=True)
+
+
+class ModifyingSaveData(models.Model):
+    data = models.IntegerField(null=True)
+
+    def save(self, *args, **kwargs):
+        """
+        A save method that modifies the data in the object.
+        Verifies that a user-defined save() method isn't called when objects
+        are deserialized (#4459).
+        """
+        self.data = 666
+        super(ModifyingSaveData, self).save(*args, **kwargs)
+
+# Tests for serialization of models using inheritance.
+# Regression for #7202, #7350
+
+
+class AbstractBaseModel(models.Model):
+    parent_data = models.IntegerField()
+
+    class Meta:
+        abstract = True
+
+
+class InheritAbstractModel(AbstractBaseModel):
+    child_data = models.IntegerField()
+
+
+class BaseModel(models.Model):
+    parent_data = models.IntegerField()
+
+
+class InheritBaseModel(BaseModel):
+    child_data = models.IntegerField()
+
+
+class ExplicitInheritBaseModel(BaseModel):
+    parent = models.OneToOneField(BaseModel, models.CASCADE)
+    child_data = models.IntegerField()
+
+
+class LengthModel(models.Model):
+    data = models.IntegerField()
+
+    def __len__(self):
+        return self.data
diff --git a/tests/serializers/test_data.py b/tests/serializers/test_data.py
new file mode 100644
index 0000000000..5f0cd45643
--- /dev/null
+++ b/tests/serializers/test_data.py
@@ -0,0 +1,424 @@
+"""
+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.
+"""
+from __future__ import unicode_literals
+
+import datetime
+import decimal
+import uuid
+
+from django.core import serializers
+from django.db import connection, models
+from django.test import TestCase
+from django.utils import six
+
+from .models import (
+    Anchor, AutoNowDateTimeData, BigIntegerData, BinaryData, BooleanData,
+    BooleanPKData, CharData, CharPKData, DateData, DateTimeData, DecimalData,
+    DecimalPKData, EmailData, EmailPKData, ExplicitInheritBaseModel, FileData,
+    FilePathData, FilePathPKData, FKData, FKDataToField, FKDataToO2O,
+    FKSelfData, FKToUUID, FloatData, FloatPKData, GenericData,
+    GenericIPAddressData, GenericIPAddressPKData, InheritAbstractModel,
+    InheritBaseModel, IntegerData, IntegerPKData, Intermediate, LengthModel,
+    M2MData, M2MIntermediateData, M2MSelfData, ModifyingSaveData,
+    NullBooleanData, O2OData, PositiveIntegerData, PositiveIntegerPKData,
+    PositiveSmallIntegerData, PositiveSmallIntegerPKData, SlugData, SlugPKData,
+    SmallData, SmallPKData, Tag, TextData, TimeData, UniqueAnchor, UUIDData,
+)
+from .tests import register_tests
+
+
+# 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 behavior, 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)
+    if klass == BinaryData and data is not None:
+        testcase.assertEqual(bytes(data), bytes(instance.data),
+             "Objects with PK=%d not equal; expected '%s' (%s), got '%s' (%s)" % (
+                 pk, repr(bytes(data)), type(data), repr(bytes(instance.data)),
+                 type(instance.data))
+        )
+    else:
+        testcase.assertEqual(data, instance.data,
+             "Objects with PK=%d not equal; expected '%s' (%s), got '%s' (%s)" % (
+                 pk, data, type(data), instance, 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):
+    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)
+uuid_obj = uuid.uuid4()
+
+test_data = [
+    # Format: (data type, PK value, Model Class, data)
+    (data_obj, 1, BinaryData, six.memoryview(b"\x05\xFD\x00")),
+    (data_obj, 2, BinaryData, None),
+    (data_obj, 5, BooleanData, True),
+    (data_obj, 6, 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, '\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, 95, GenericIPAddressData, "fe80:1424:2223:6cff:fe8a:2e8a:2151:abcd"),
+    (data_obj, 96, GenericIPAddressData, None),
+    (data_obj, 100, NullBooleanData, True),
+    (data_obj, 101, NullBooleanData, False),
+    (data_obj, 102, NullBooleanData, 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),
+
+    (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, 695, GenericIPAddressPKData, "fe80:1424:2223:6cff:fe8a:2e8a:2151:abcd"),
+    # (pk_obj, 700, NullBooleanPKData, True),
+    # (pk_obj, 701, NullBooleanPKData, False),
+    (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, 790, XMLPKData, "<foo></foo>"),
+    (pk_obj, 791, UUIDData, uuid_obj),
+    (fk_obj, 792, FKToUUID, uuid_obj),
+
+    (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 connection.features.interprets_empty_strings_as_nulls:
+    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 with PK of 0
+# This won't work on MySQL since it won't let you create an object
+# with an autoincrement primary key of 0,
+if connection.features.allows_auto_pk_0:
+    test_data.extend([
+        (data_obj, 0, Anchor, "Anchor 0"),
+        (fk_obj, 465, FKData, 0),
+    ])
+
+
+class SerializerDataTests(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:
+        with connection.constraint_checks_disabled():
+            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.assertEqual(count, klass.objects.count())
+
+
+register_tests(SerializerDataTests, 'test_%s_serializer', serializerTest)