425 lines
15 KiB
Python
425 lines
15 KiB
Python
"""
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A test spanning all the capabilities of all the serializers.
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This class defines sample data and a dynamically generated
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test case that is capable of testing the capabilities of
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the serializers. This includes all valid data values, plus
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forward, backwards and self references.
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"""
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import datetime
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import decimal
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import uuid
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from django.core import serializers
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from django.db import connection, models
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from django.test import TestCase
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from .models import (
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Anchor, AutoNowDateTimeData, BigIntegerData, BinaryData, BooleanData,
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BooleanPKData, CharData, CharPKData, DateData, DatePKData, DateTimeData,
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DateTimePKData, DecimalData, DecimalPKData, EmailData, EmailPKData,
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ExplicitInheritBaseModel, FileData, FilePathData, FilePathPKData, FKData,
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FKDataToField, FKDataToO2O, FKSelfData, FKToUUID, FloatData, FloatPKData,
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GenericData, GenericIPAddressData, GenericIPAddressPKData,
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InheritAbstractModel, InheritBaseModel, IntegerData, IntegerPKData,
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Intermediate, LengthModel, M2MData, M2MIntermediateData, M2MSelfData,
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ModifyingSaveData, O2OData, PositiveBigIntegerData, PositiveIntegerData,
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PositiveIntegerPKData, PositiveSmallIntegerData,
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PositiveSmallIntegerPKData, SlugData, SlugPKData, SmallData, SmallPKData,
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Tag, TextData, TimeData, UniqueAnchor, UUIDData, UUIDDefaultData,
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)
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from .tests import register_tests
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# A set of functions that can be used to recreate
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# test data objects of various kinds.
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# The save method is a raw base model save, to make
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# sure that the data in the database matches the
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# exact test case.
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def data_create(pk, klass, data):
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instance = klass(id=pk)
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instance.data = data
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models.Model.save_base(instance, raw=True)
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return [instance]
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def generic_create(pk, klass, data):
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instance = klass(id=pk)
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instance.data = data[0]
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models.Model.save_base(instance, raw=True)
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for tag in data[1:]:
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instance.tags.create(data=tag)
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return [instance]
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def fk_create(pk, klass, data):
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instance = klass(id=pk)
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setattr(instance, 'data_id', data)
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models.Model.save_base(instance, raw=True)
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return [instance]
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def m2m_create(pk, klass, data):
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instance = klass(id=pk)
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models.Model.save_base(instance, raw=True)
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instance.data.set(data)
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return [instance]
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def im2m_create(pk, klass, data):
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instance = klass(id=pk)
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models.Model.save_base(instance, raw=True)
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return [instance]
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def im_create(pk, klass, data):
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instance = klass(id=pk)
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instance.right_id = data['right']
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instance.left_id = data['left']
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if 'extra' in data:
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instance.extra = data['extra']
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models.Model.save_base(instance, raw=True)
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return [instance]
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def o2o_create(pk, klass, data):
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instance = klass()
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instance.data_id = data
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models.Model.save_base(instance, raw=True)
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return [instance]
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def pk_create(pk, klass, data):
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instance = klass()
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instance.data = data
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models.Model.save_base(instance, raw=True)
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return [instance]
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def inherited_create(pk, klass, data):
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instance = klass(id=pk, **data)
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# This isn't a raw save because:
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# 1) we're testing inheritance, not field behavior, so none
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# of the field values need to be protected.
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# 2) saving the child class and having the parent created
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# automatically is easier than manually creating both.
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models.Model.save(instance)
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created = [instance]
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for klass in instance._meta.parents:
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created.append(klass.objects.get(id=pk))
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return created
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# A set of functions that can be used to compare
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# test data objects of various kinds
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def data_compare(testcase, pk, klass, data):
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instance = klass.objects.get(id=pk)
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if klass == BinaryData and data is not None:
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testcase.assertEqual(
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bytes(data), bytes(instance.data),
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"Objects with PK=%d not equal; expected '%s' (%s), got '%s' (%s)" % (
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pk, repr(bytes(data)), type(data), repr(bytes(instance.data)),
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type(instance.data),
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)
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)
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else:
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testcase.assertEqual(
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data, instance.data,
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"Objects with PK=%d not equal; expected '%s' (%s), got '%s' (%s)" % (
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pk, data, type(data), instance, type(instance.data),
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)
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)
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def generic_compare(testcase, pk, klass, data):
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instance = klass.objects.get(id=pk)
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testcase.assertEqual(data[0], instance.data)
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testcase.assertEqual(data[1:], [t.data for t in instance.tags.order_by('id')])
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def fk_compare(testcase, pk, klass, data):
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instance = klass.objects.get(id=pk)
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testcase.assertEqual(data, instance.data_id)
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def m2m_compare(testcase, pk, klass, data):
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instance = klass.objects.get(id=pk)
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testcase.assertEqual(data, [obj.id for obj in instance.data.order_by('id')])
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def im2m_compare(testcase, pk, klass, data):
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klass.objects.get(id=pk)
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# actually nothing else to check, the instance just should exist
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def im_compare(testcase, pk, klass, data):
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instance = klass.objects.get(id=pk)
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testcase.assertEqual(data['left'], instance.left_id)
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testcase.assertEqual(data['right'], instance.right_id)
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if 'extra' in data:
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testcase.assertEqual(data['extra'], instance.extra)
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else:
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testcase.assertEqual("doesn't matter", instance.extra)
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def o2o_compare(testcase, pk, klass, data):
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instance = klass.objects.get(data=data)
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testcase.assertEqual(data, instance.data_id)
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def pk_compare(testcase, pk, klass, data):
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instance = klass.objects.get(data=data)
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testcase.assertEqual(data, instance.data)
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def inherited_compare(testcase, pk, klass, data):
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instance = klass.objects.get(id=pk)
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for key, value in data.items():
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testcase.assertEqual(value, getattr(instance, key))
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# Define some data types. Each data type is
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# actually a pair of functions; one to create
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# and one to compare objects of that type
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data_obj = (data_create, data_compare)
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generic_obj = (generic_create, generic_compare)
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fk_obj = (fk_create, fk_compare)
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m2m_obj = (m2m_create, m2m_compare)
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im2m_obj = (im2m_create, im2m_compare)
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im_obj = (im_create, im_compare)
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o2o_obj = (o2o_create, o2o_compare)
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pk_obj = (pk_create, pk_compare)
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inherited_obj = (inherited_create, inherited_compare)
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uuid_obj = uuid.uuid4()
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test_data = [
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# Format: (data type, PK value, Model Class, data)
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(data_obj, 1, BinaryData, memoryview(b"\x05\xFD\x00")),
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(data_obj, 2, BinaryData, None),
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(data_obj, 5, BooleanData, True),
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(data_obj, 6, BooleanData, False),
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(data_obj, 7, BooleanData, None),
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(data_obj, 10, CharData, "Test Char Data"),
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(data_obj, 11, CharData, ""),
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(data_obj, 12, CharData, "None"),
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(data_obj, 13, CharData, "null"),
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(data_obj, 14, CharData, "NULL"),
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(data_obj, 15, CharData, None),
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# (We use something that will fit into a latin1 database encoding here,
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# because that is still the default used on many system setups.)
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(data_obj, 16, CharData, '\xa5'),
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(data_obj, 20, DateData, datetime.date(2006, 6, 16)),
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(data_obj, 21, DateData, None),
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(data_obj, 30, DateTimeData, datetime.datetime(2006, 6, 16, 10, 42, 37)),
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(data_obj, 31, DateTimeData, None),
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(data_obj, 40, EmailData, "hovercraft@example.com"),
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(data_obj, 41, EmailData, None),
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(data_obj, 42, EmailData, ""),
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(data_obj, 50, FileData, 'file:///foo/bar/whiz.txt'),
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# (data_obj, 51, FileData, None),
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(data_obj, 52, FileData, ""),
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(data_obj, 60, FilePathData, "/foo/bar/whiz.txt"),
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(data_obj, 61, FilePathData, None),
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(data_obj, 62, FilePathData, ""),
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(data_obj, 70, DecimalData, decimal.Decimal('12.345')),
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(data_obj, 71, DecimalData, decimal.Decimal('-12.345')),
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(data_obj, 72, DecimalData, decimal.Decimal('0.0')),
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(data_obj, 73, DecimalData, None),
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(data_obj, 74, FloatData, 12.345),
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(data_obj, 75, FloatData, -12.345),
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(data_obj, 76, FloatData, 0.0),
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(data_obj, 77, FloatData, None),
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(data_obj, 80, IntegerData, 123456789),
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(data_obj, 81, IntegerData, -123456789),
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(data_obj, 82, IntegerData, 0),
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(data_obj, 83, IntegerData, None),
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# (XX, ImageData
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(data_obj, 95, GenericIPAddressData, "fe80:1424:2223:6cff:fe8a:2e8a:2151:abcd"),
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(data_obj, 96, GenericIPAddressData, None),
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(data_obj, 110, PositiveBigIntegerData, 9223372036854775807),
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(data_obj, 111, PositiveBigIntegerData, None),
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(data_obj, 120, PositiveIntegerData, 123456789),
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(data_obj, 121, PositiveIntegerData, None),
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(data_obj, 130, PositiveSmallIntegerData, 12),
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(data_obj, 131, PositiveSmallIntegerData, None),
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(data_obj, 140, SlugData, "this-is-a-slug"),
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(data_obj, 141, SlugData, None),
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(data_obj, 142, SlugData, ""),
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(data_obj, 150, SmallData, 12),
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(data_obj, 151, SmallData, -12),
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(data_obj, 152, SmallData, 0),
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(data_obj, 153, SmallData, None),
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(data_obj, 160, TextData, """This is a long piece of text.
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It contains line breaks.
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Several of them.
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The end."""),
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(data_obj, 161, TextData, ""),
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(data_obj, 162, TextData, None),
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(data_obj, 170, TimeData, datetime.time(10, 42, 37)),
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(data_obj, 171, TimeData, None),
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(generic_obj, 200, GenericData, ['Generic Object 1', 'tag1', 'tag2']),
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(generic_obj, 201, GenericData, ['Generic Object 2', 'tag2', 'tag3']),
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(data_obj, 300, Anchor, "Anchor 1"),
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(data_obj, 301, Anchor, "Anchor 2"),
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(data_obj, 302, UniqueAnchor, "UAnchor 1"),
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(fk_obj, 400, FKData, 300), # Post reference
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(fk_obj, 401, FKData, 500), # Pre reference
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(fk_obj, 402, FKData, None), # Empty reference
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(m2m_obj, 410, M2MData, []), # Empty set
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(m2m_obj, 411, M2MData, [300, 301]), # Post reference
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(m2m_obj, 412, M2MData, [500, 501]), # Pre reference
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(m2m_obj, 413, M2MData, [300, 301, 500, 501]), # Pre and Post reference
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(o2o_obj, None, O2OData, 300), # Post reference
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(o2o_obj, None, O2OData, 500), # Pre reference
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(fk_obj, 430, FKSelfData, 431), # Pre reference
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(fk_obj, 431, FKSelfData, 430), # Post reference
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(fk_obj, 432, FKSelfData, None), # Empty reference
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(m2m_obj, 440, M2MSelfData, []),
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(m2m_obj, 441, M2MSelfData, []),
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(m2m_obj, 442, M2MSelfData, [440, 441]),
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(m2m_obj, 443, M2MSelfData, [445, 446]),
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(m2m_obj, 444, M2MSelfData, [440, 441, 445, 446]),
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(m2m_obj, 445, M2MSelfData, []),
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(m2m_obj, 446, M2MSelfData, []),
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(fk_obj, 450, FKDataToField, "UAnchor 1"),
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(fk_obj, 451, FKDataToField, "UAnchor 2"),
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(fk_obj, 452, FKDataToField, None),
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(fk_obj, 460, FKDataToO2O, 300),
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(im2m_obj, 470, M2MIntermediateData, None),
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# testing post- and pre-references and extra fields
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(im_obj, 480, Intermediate, {'right': 300, 'left': 470}),
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(im_obj, 481, Intermediate, {'right': 300, 'left': 490}),
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(im_obj, 482, Intermediate, {'right': 500, 'left': 470}),
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(im_obj, 483, Intermediate, {'right': 500, 'left': 490}),
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(im_obj, 484, Intermediate, {'right': 300, 'left': 470, 'extra': "extra"}),
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(im_obj, 485, Intermediate, {'right': 300, 'left': 490, 'extra': "extra"}),
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(im_obj, 486, Intermediate, {'right': 500, 'left': 470, 'extra': "extra"}),
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(im_obj, 487, Intermediate, {'right': 500, 'left': 490, 'extra': "extra"}),
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(im2m_obj, 490, M2MIntermediateData, []),
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(data_obj, 500, Anchor, "Anchor 3"),
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(data_obj, 501, Anchor, "Anchor 4"),
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(data_obj, 502, UniqueAnchor, "UAnchor 2"),
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(pk_obj, 601, BooleanPKData, True),
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(pk_obj, 602, BooleanPKData, False),
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(pk_obj, 610, CharPKData, "Test Char PKData"),
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(pk_obj, 620, DatePKData, datetime.date(2006, 6, 16)),
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(pk_obj, 630, DateTimePKData, datetime.datetime(2006, 6, 16, 10, 42, 37)),
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(pk_obj, 640, EmailPKData, "hovercraft@example.com"),
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# (pk_obj, 650, FilePKData, 'file:///foo/bar/whiz.txt'),
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(pk_obj, 660, FilePathPKData, "/foo/bar/whiz.txt"),
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(pk_obj, 670, DecimalPKData, decimal.Decimal('12.345')),
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(pk_obj, 671, DecimalPKData, decimal.Decimal('-12.345')),
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(pk_obj, 672, DecimalPKData, decimal.Decimal('0.0')),
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(pk_obj, 673, FloatPKData, 12.345),
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(pk_obj, 674, FloatPKData, -12.345),
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(pk_obj, 675, FloatPKData, 0.0),
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(pk_obj, 680, IntegerPKData, 123456789),
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(pk_obj, 681, IntegerPKData, -123456789),
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(pk_obj, 682, IntegerPKData, 0),
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# (XX, ImagePKData
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(pk_obj, 695, GenericIPAddressPKData, "fe80:1424:2223:6cff:fe8a:2e8a:2151:abcd"),
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(pk_obj, 720, PositiveIntegerPKData, 123456789),
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(pk_obj, 730, PositiveSmallIntegerPKData, 12),
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(pk_obj, 740, SlugPKData, "this-is-a-slug"),
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(pk_obj, 750, SmallPKData, 12),
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(pk_obj, 751, SmallPKData, -12),
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(pk_obj, 752, SmallPKData, 0),
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# (pk_obj, 760, TextPKData, """This is a long piece of text.
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# It contains line breaks.
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# Several of them.
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# The end."""),
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# (pk_obj, 770, TimePKData, datetime.time(10, 42, 37)),
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# (pk_obj, 790, XMLPKData, "<foo></foo>"),
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(pk_obj, 791, UUIDData, uuid_obj),
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(fk_obj, 792, FKToUUID, uuid_obj),
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(pk_obj, 793, UUIDDefaultData, uuid_obj),
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(data_obj, 800, AutoNowDateTimeData, datetime.datetime(2006, 6, 16, 10, 42, 37)),
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(data_obj, 810, ModifyingSaveData, 42),
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(inherited_obj, 900, InheritAbstractModel, {'child_data': 37, 'parent_data': 42}),
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(inherited_obj, 910, ExplicitInheritBaseModel, {'child_data': 37, 'parent_data': 42}),
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(inherited_obj, 920, InheritBaseModel, {'child_data': 37, 'parent_data': 42}),
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(data_obj, 1000, BigIntegerData, 9223372036854775807),
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(data_obj, 1001, BigIntegerData, -9223372036854775808),
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(data_obj, 1002, BigIntegerData, 0),
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(data_obj, 1003, BigIntegerData, None),
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(data_obj, 1004, LengthModel, 0),
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(data_obj, 1005, LengthModel, 1),
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]
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# Because Oracle treats the empty string as NULL, Oracle is expected to fail
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# when field.empty_strings_allowed is True and the value is None; skip these
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# tests.
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if connection.features.interprets_empty_strings_as_nulls:
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test_data = [data for data in test_data
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if not (data[0] == data_obj and
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data[2]._meta.get_field('data').empty_strings_allowed and
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data[3] is None)]
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class SerializerDataTests(TestCase):
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pass
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def serializerTest(self, format):
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# FK to an object with PK of 0. This won't work on MySQL without the
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# NO_AUTO_VALUE_ON_ZERO SQL mode since it won't let you create an object
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# with an autoincrement primary key of 0.
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if connection.features.allows_auto_pk_0:
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test_data.extend([
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(data_obj, 0, Anchor, 'Anchor 0'),
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(fk_obj, 465, FKData, 0),
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])
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# Create all the objects defined in the test data
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objects = []
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instance_count = {}
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for (func, pk, klass, datum) in test_data:
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with connection.constraint_checks_disabled():
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objects.extend(func[0](pk, klass, datum))
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# Get a count of the number of objects created for each class
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for klass in instance_count:
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instance_count[klass] = klass.objects.count()
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# Add the generic tagged objects to the object list
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objects.extend(Tag.objects.all())
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# Serialize the test database
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serialized_data = serializers.serialize(format, objects, indent=2)
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for obj in serializers.deserialize(format, serialized_data):
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obj.save()
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# Assert that the deserialized data is the same
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# as the original source
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for (func, pk, klass, datum) in test_data:
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func[1](self, pk, klass, datum)
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# Assert that the number of objects deserialized is the
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# same as the number that was serialized.
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for klass, count in instance_count.items():
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self.assertEqual(count, klass.objects.count())
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register_tests(SerializerDataTests, 'test_%s_serializer', serializerTest)
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