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4e29b70b9d
Thanks to claudep for the review. git-svn-id: http://code.djangoproject.com/svn/django/trunk@17372 bcc190cf-cafb-0310-a4f2-bffc1f526a37
689 lines
22 KiB
Python
689 lines
22 KiB
Python
# -*- coding: utf-8 -*-
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# Unittests for fixtures.
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from __future__ import absolute_import
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import os
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import re
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try:
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from cStringIO import StringIO
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except ImportError:
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from StringIO import StringIO
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from django.core import management
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from django.core.management.base import CommandError
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from django.core.management.commands.dumpdata import sort_dependencies
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from django.db import transaction
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from django.db.models import signals
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from django.test import (TestCase, TransactionTestCase, skipIfDBFeature,
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skipUnlessDBFeature)
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from django.test.utils import override_settings
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from .models import (Animal, Stuff, Absolute, Parent, Child, Article, Widget,
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Store, Person, Book, NKChild, RefToNKChild, Circle1, Circle2, Circle3,
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ExternalDependency, Thingy)
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pre_save_checks = []
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def animal_pre_save_check(signal, sender, instance, **kwargs):
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"A signal that is used to check the type of data loaded from fixtures"
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pre_save_checks.append(
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(
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'Count = %s (%s)' % (instance.count, type(instance.count)),
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'Weight = %s (%s)' % (instance.weight, type(instance.weight)),
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)
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)
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class TestFixtures(TestCase):
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def test_duplicate_pk(self):
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"""
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This is a regression test for ticket #3790.
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"""
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# Load a fixture that uses PK=1
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management.call_command(
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'loaddata',
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'sequence',
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verbosity=0,
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commit=False
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)
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# Create a new animal. Without a sequence reset, this new object
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# will take a PK of 1 (on Postgres), and the save will fail.
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animal = Animal(
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name='Platypus',
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latin_name='Ornithorhynchus anatinus',
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count=2,
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weight=2.2
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)
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animal.save()
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self.assertGreater(animal.id, 1)
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@skipIfDBFeature('interprets_empty_strings_as_nulls')
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def test_pretty_print_xml(self):
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"""
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Regression test for ticket #4558 -- pretty printing of XML fixtures
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doesn't affect parsing of None values.
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"""
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# Load a pretty-printed XML fixture with Nulls.
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management.call_command(
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'loaddata',
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'pretty.xml',
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verbosity=0,
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commit=False
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)
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self.assertEqual(Stuff.objects.all()[0].name, None)
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self.assertEqual(Stuff.objects.all()[0].owner, None)
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@skipUnlessDBFeature('interprets_empty_strings_as_nulls')
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def test_pretty_print_xml_empty_strings(self):
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"""
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Regression test for ticket #4558 -- pretty printing of XML fixtures
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doesn't affect parsing of None values.
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"""
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# Load a pretty-printed XML fixture with Nulls.
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management.call_command(
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'loaddata',
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'pretty.xml',
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verbosity=0,
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commit=False
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)
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self.assertEqual(Stuff.objects.all()[0].name, u'')
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self.assertEqual(Stuff.objects.all()[0].owner, None)
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def test_absolute_path(self):
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"""
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Regression test for ticket #6436 --
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os.path.join will throw away the initial parts of a path if it
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encounters an absolute path.
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This means that if a fixture is specified as an absolute path,
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we need to make sure we don't discover the absolute path in every
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fixture directory.
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"""
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load_absolute_path = os.path.join(
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os.path.dirname(__file__),
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'fixtures',
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'absolute.json'
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)
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management.call_command(
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'loaddata',
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load_absolute_path,
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verbosity=0,
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commit=False
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)
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self.assertEqual(Absolute.load_count, 1)
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def test_unknown_format(self):
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"""
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Test for ticket #4371 -- Loading data of an unknown format should fail
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Validate that error conditions are caught correctly
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"""
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stderr = StringIO()
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management.call_command(
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'loaddata',
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'bad_fixture1.unkn',
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verbosity=0,
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commit=False,
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stderr=stderr,
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)
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self.assertEqual(
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stderr.getvalue(),
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"Problem installing fixture 'bad_fixture1': unkn is not a known serialization format.\n"
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)
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def test_invalid_data(self):
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"""
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Test for ticket #4371 -- Loading a fixture file with invalid data
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using explicit filename.
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Validate that error conditions are caught correctly
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"""
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stderr = StringIO()
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management.call_command(
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'loaddata',
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'bad_fixture2.xml',
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verbosity=0,
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commit=False,
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stderr=stderr,
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)
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self.assertEqual(
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stderr.getvalue(),
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"No fixture data found for 'bad_fixture2'. (File format may be invalid.)\n"
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)
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def test_invalid_data_no_ext(self):
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"""
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Test for ticket #4371 -- Loading a fixture file with invalid data
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without file extension.
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Validate that error conditions are caught correctly
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"""
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stderr = StringIO()
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management.call_command(
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'loaddata',
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'bad_fixture2',
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verbosity=0,
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commit=False,
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stderr=stderr,
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)
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self.assertEqual(
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stderr.getvalue(),
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"No fixture data found for 'bad_fixture2'. (File format may be invalid.)\n"
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)
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def test_empty(self):
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"""
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Test for ticket #4371 -- Loading a fixture file with no data returns an error.
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Validate that error conditions are caught correctly
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"""
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stderr = StringIO()
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management.call_command(
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'loaddata',
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'empty',
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verbosity=0,
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commit=False,
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stderr=stderr,
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)
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self.assertEqual(
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stderr.getvalue(),
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"No fixture data found for 'empty'. (File format may be invalid.)\n"
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)
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def test_abort_loaddata_on_error(self):
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"""
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Test for ticket #4371 -- If any of the fixtures contain an error,
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loading is aborted.
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Validate that error conditions are caught correctly
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"""
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stderr = StringIO()
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management.call_command(
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'loaddata',
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'empty',
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verbosity=0,
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commit=False,
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stderr=stderr,
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)
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self.assertEqual(
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stderr.getvalue(),
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"No fixture data found for 'empty'. (File format may be invalid.)\n"
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)
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def test_error_message(self):
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"""
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(Regression for #9011 - error message is correct)
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"""
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stderr = StringIO()
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management.call_command(
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'loaddata',
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'bad_fixture2',
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'animal',
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verbosity=0,
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commit=False,
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stderr=stderr,
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)
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self.assertEqual(
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stderr.getvalue(),
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"No fixture data found for 'bad_fixture2'. (File format may be invalid.)\n"
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)
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def test_pg_sequence_resetting_checks(self):
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"""
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Test for ticket #7565 -- PostgreSQL sequence resetting checks shouldn't
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ascend to parent models when inheritance is used
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(since they are treated individually).
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"""
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management.call_command(
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'loaddata',
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'model-inheritance.json',
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verbosity=0,
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commit=False
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)
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self.assertEqual(Parent.objects.all()[0].id, 1)
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self.assertEqual(Child.objects.all()[0].id, 1)
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def test_close_connection_after_loaddata(self):
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"""
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Test for ticket #7572 -- MySQL has a problem if the same connection is
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used to create tables, load data, and then query over that data.
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To compensate, we close the connection after running loaddata.
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This ensures that a new connection is opened when test queries are
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issued.
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"""
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management.call_command(
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'loaddata',
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'big-fixture.json',
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verbosity=0,
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commit=False
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)
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articles = Article.objects.exclude(id=9)
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self.assertEqual(
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list(articles.values_list('id', flat=True)),
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[1, 2, 3, 4, 5, 6, 7, 8]
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)
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# Just for good measure, run the same query again.
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# Under the influence of ticket #7572, this will
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# give a different result to the previous call.
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self.assertEqual(
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list(articles.values_list('id', flat=True)),
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[1, 2, 3, 4, 5, 6, 7, 8]
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)
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def test_field_value_coerce(self):
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"""
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Test for tickets #8298, #9942 - Field values should be coerced into the
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correct type by the deserializer, not as part of the database write.
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"""
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global pre_save_checks
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pre_save_checks = []
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signals.pre_save.connect(animal_pre_save_check)
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try:
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management.call_command(
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'loaddata',
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'animal.xml',
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verbosity=0,
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commit=False,
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)
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self.assertEqual(
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pre_save_checks,
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[
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("Count = 42 (<type 'int'>)", "Weight = 1.2 (<type 'float'>)")
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]
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)
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finally:
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signals.pre_save.disconnect(animal_pre_save_check)
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def test_dumpdata_uses_default_manager(self):
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"""
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Regression for #11286
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Ensure that dumpdata honors the default manager
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Dump the current contents of the database as a JSON fixture
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"""
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management.call_command(
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'loaddata',
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'animal.xml',
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verbosity=0,
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commit=False,
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)
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management.call_command(
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'loaddata',
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'sequence.json',
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verbosity=0,
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commit=False,
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)
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animal = Animal(
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name='Platypus',
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latin_name='Ornithorhynchus anatinus',
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count=2,
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weight=2.2
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)
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animal.save()
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stdout = StringIO()
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management.call_command(
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'dumpdata',
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'fixtures_regress.animal',
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format='json',
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stdout=stdout
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)
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# Output order isn't guaranteed, so check for parts
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data = stdout.getvalue()
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# Get rid of artifacts like '000000002' to eliminate the differences
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# between different Python versions.
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data = re.sub('0{6,}\d', '', data)
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lion_json = '{"pk": 1, "model": "fixtures_regress.animal", "fields": {"count": 3, "weight": 1.2, "name": "Lion", "latin_name": "Panthera leo"}}'
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emu_json = '{"pk": 10, "model": "fixtures_regress.animal", "fields": {"count": 42, "weight": 1.2, "name": "Emu", "latin_name": "Dromaius novaehollandiae"}}'
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platypus_json = '{"pk": %d, "model": "fixtures_regress.animal", "fields": {"count": 2, "weight": 2.2, "name": "Platypus", "latin_name": "Ornithorhynchus anatinus"}}'
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platypus_json = platypus_json % animal.pk
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self.assertEqual(len(data), len('[%s]' % ', '.join([lion_json, emu_json, platypus_json])))
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self.assertTrue(lion_json in data)
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self.assertTrue(emu_json in data)
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self.assertTrue(platypus_json in data)
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def test_proxy_model_included(self):
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"""
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Regression for #11428 - Proxy models aren't included when you dumpdata
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"""
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stdout = StringIO()
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# Create an instance of the concrete class
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widget = Widget.objects.create(name='grommet')
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management.call_command(
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'dumpdata',
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'fixtures_regress.widget',
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'fixtures_regress.widgetproxy',
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format='json',
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stdout=stdout
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)
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self.assertEqual(
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stdout.getvalue(),
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"""[{"pk": %d, "model": "fixtures_regress.widget", "fields": {"name": "grommet"}}]"""
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% widget.pk
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)
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def test_loaddata_works_when_fixture_has_forward_refs(self):
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"""
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Regression for #3615 - Forward references cause fixtures not to load in MySQL (InnoDB)
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"""
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management.call_command(
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'loaddata',
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'forward_ref.json',
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verbosity=0,
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commit=False
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)
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self.assertEqual(Book.objects.all()[0].id, 1)
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self.assertEqual(Person.objects.all()[0].id, 4)
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def test_loaddata_raises_error_when_fixture_has_invalid_foreign_key(self):
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"""
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Regression for #3615 - Ensure data with nonexistent child key references raises error
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"""
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stderr = StringIO()
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management.call_command(
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'loaddata',
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'forward_ref_bad_data.json',
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verbosity=0,
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commit=False,
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stderr=stderr,
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)
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self.assertTrue(
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stderr.getvalue().startswith('Problem installing fixture')
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)
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_cur_dir = os.path.dirname(os.path.abspath(__file__))
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@override_settings(FIXTURE_DIRS=[os.path.join(_cur_dir, 'fixtures_1'),
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os.path.join(_cur_dir, 'fixtures_2')])
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def test_loaddata_forward_refs_split_fixtures(self):
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"""
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Regression for #17530 - should be able to cope with forward references
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when the fixtures are not in the same files or directories.
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"""
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management.call_command(
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'loaddata',
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'forward_ref_1.json',
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'forward_ref_2.json',
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verbosity=0,
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commit=False
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)
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self.assertEqual(Book.objects.all()[0].id, 1)
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self.assertEqual(Person.objects.all()[0].id, 4)
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def test_loaddata_no_fixture_specified(self):
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"""
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Regression for #7043 - Error is quickly reported when no fixtures is provided in the command line.
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"""
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stderr = StringIO()
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management.call_command(
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'loaddata',
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verbosity=0,
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commit=False,
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stderr=stderr,
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)
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self.assertEqual(
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stderr.getvalue(), 'No database fixture specified. Please provide the path of at least one fixture in the command line.\n'
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)
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def test_loaddata_not_existant_fixture_file(self):
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stdout_output = StringIO()
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management.call_command(
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'loaddata',
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'this_fixture_doesnt_exist',
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verbosity=2,
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commit=False,
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stdout=stdout_output,
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)
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self.assertTrue("No xml fixture 'this_fixture_doesnt_exist' in" in
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stdout_output.getvalue())
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class NaturalKeyFixtureTests(TestCase):
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def test_nk_deserialize(self):
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"""
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Test for ticket #13030 - Python based parser version
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natural keys deserialize with fk to inheriting model
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"""
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management.call_command(
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'loaddata',
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'model-inheritance.json',
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verbosity=0,
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commit=False
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)
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management.call_command(
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'loaddata',
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'nk-inheritance.json',
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verbosity=0,
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commit=False
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)
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self.assertEqual(
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NKChild.objects.get(pk=1).data,
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'apple'
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)
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self.assertEqual(
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RefToNKChild.objects.get(pk=1).nk_fk.data,
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'apple'
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)
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def test_nk_deserialize_xml(self):
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"""
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Test for ticket #13030 - XML version
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natural keys deserialize with fk to inheriting model
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"""
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management.call_command(
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'loaddata',
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'model-inheritance.json',
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verbosity=0,
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commit=False
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)
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management.call_command(
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'loaddata',
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'nk-inheritance.json',
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verbosity=0,
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commit=False
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)
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management.call_command(
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'loaddata',
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'nk-inheritance2.xml',
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verbosity=0,
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commit=False
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)
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self.assertEqual(
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NKChild.objects.get(pk=2).data,
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'banana'
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)
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self.assertEqual(
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RefToNKChild.objects.get(pk=2).nk_fk.data,
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'apple'
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)
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def test_nk_on_serialize(self):
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"""
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Check that natural key requirements are taken into account
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when serializing models
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"""
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management.call_command(
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'loaddata',
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'forward_ref_lookup.json',
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verbosity=0,
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commit=False
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)
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stdout = StringIO()
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management.call_command(
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'dumpdata',
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'fixtures_regress.book',
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'fixtures_regress.person',
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'fixtures_regress.store',
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verbosity=0,
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format='json',
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use_natural_keys=True,
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stdout=stdout,
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)
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self.assertEqual(
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stdout.getvalue(),
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"""[{"pk": 2, "model": "fixtures_regress.store", "fields": {"name": "Amazon"}}, {"pk": 3, "model": "fixtures_regress.store", "fields": {"name": "Borders"}}, {"pk": 4, "model": "fixtures_regress.person", "fields": {"name": "Neal Stephenson"}}, {"pk": 1, "model": "fixtures_regress.book", "fields": {"stores": [["Amazon"], ["Borders"]], "name": "Cryptonomicon", "author": ["Neal Stephenson"]}}]"""
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)
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def test_dependency_sorting(self):
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"""
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Now lets check the dependency sorting explicitly
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It doesn't matter what order you mention the models
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Store *must* be serialized before then Person, and both
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must be serialized before Book.
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"""
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sorted_deps = sort_dependencies(
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[('fixtures_regress', [Book, Person, Store])]
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)
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self.assertEqual(
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sorted_deps,
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|
[Store, Person, Book]
|
|
)
|
|
|
|
def test_dependency_sorting_2(self):
|
|
sorted_deps = sort_dependencies(
|
|
[('fixtures_regress', [Book, Store, Person])]
|
|
)
|
|
self.assertEqual(
|
|
sorted_deps,
|
|
[Store, Person, Book]
|
|
)
|
|
|
|
def test_dependency_sorting_3(self):
|
|
sorted_deps = sort_dependencies(
|
|
[('fixtures_regress', [Store, Book, Person])]
|
|
)
|
|
self.assertEqual(
|
|
sorted_deps,
|
|
[Store, Person, Book]
|
|
)
|
|
|
|
def test_dependency_sorting_4(self):
|
|
sorted_deps = sort_dependencies(
|
|
[('fixtures_regress', [Store, Person, Book])]
|
|
)
|
|
self.assertEqual(
|
|
sorted_deps,
|
|
[Store, Person, Book]
|
|
)
|
|
|
|
def test_dependency_sorting_5(self):
|
|
sorted_deps = sort_dependencies(
|
|
[('fixtures_regress', [Person, Book, Store])]
|
|
)
|
|
self.assertEqual(
|
|
sorted_deps,
|
|
[Store, Person, Book]
|
|
)
|
|
|
|
def test_dependency_sorting_6(self):
|
|
sorted_deps = sort_dependencies(
|
|
[('fixtures_regress', [Person, Store, Book])]
|
|
)
|
|
self.assertEqual(
|
|
sorted_deps,
|
|
[Store, Person, Book]
|
|
)
|
|
|
|
def test_dependency_sorting_dangling(self):
|
|
sorted_deps = sort_dependencies(
|
|
[('fixtures_regress', [Person, Circle1, Store, Book])]
|
|
)
|
|
self.assertEqual(
|
|
sorted_deps,
|
|
[Circle1, Store, Person, Book]
|
|
)
|
|
|
|
def test_dependency_sorting_tight_circular(self):
|
|
self.assertRaisesMessage(
|
|
CommandError,
|
|
"""Can't resolve dependencies for fixtures_regress.Circle1, fixtures_regress.Circle2 in serialized app list.""",
|
|
sort_dependencies,
|
|
[('fixtures_regress', [Person, Circle2, Circle1, Store, Book])],
|
|
)
|
|
|
|
def test_dependency_sorting_tight_circular_2(self):
|
|
self.assertRaisesMessage(
|
|
CommandError,
|
|
"""Can't resolve dependencies for fixtures_regress.Circle1, fixtures_regress.Circle2 in serialized app list.""",
|
|
sort_dependencies,
|
|
[('fixtures_regress', [Circle1, Book, Circle2])],
|
|
)
|
|
|
|
def test_dependency_self_referential(self):
|
|
self.assertRaisesMessage(
|
|
CommandError,
|
|
"""Can't resolve dependencies for fixtures_regress.Circle3 in serialized app list.""",
|
|
sort_dependencies,
|
|
[('fixtures_regress', [Book, Circle3])],
|
|
)
|
|
|
|
def test_dependency_sorting_long(self):
|
|
self.assertRaisesMessage(
|
|
CommandError,
|
|
"""Can't resolve dependencies for fixtures_regress.Circle1, fixtures_regress.Circle2, fixtures_regress.Circle3 in serialized app list.""",
|
|
sort_dependencies,
|
|
[('fixtures_regress', [Person, Circle2, Circle1, Circle3, Store, Book])],
|
|
)
|
|
|
|
def test_dependency_sorting_normal(self):
|
|
sorted_deps = sort_dependencies(
|
|
[('fixtures_regress', [Person, ExternalDependency, Book])]
|
|
)
|
|
self.assertEqual(
|
|
sorted_deps,
|
|
[Person, Book, ExternalDependency]
|
|
)
|
|
|
|
def test_normal_pk(self):
|
|
"""
|
|
Check that normal primary keys still work
|
|
on a model with natural key capabilities
|
|
"""
|
|
management.call_command(
|
|
'loaddata',
|
|
'non_natural_1.json',
|
|
verbosity=0,
|
|
commit=False
|
|
)
|
|
management.call_command(
|
|
'loaddata',
|
|
'forward_ref_lookup.json',
|
|
verbosity=0,
|
|
commit=False
|
|
)
|
|
management.call_command(
|
|
'loaddata',
|
|
'non_natural_2.xml',
|
|
verbosity=0,
|
|
commit=False
|
|
)
|
|
books = Book.objects.all()
|
|
self.assertEqual(
|
|
books.__repr__(),
|
|
"""[<Book: Cryptonomicon by Neal Stephenson (available at Amazon, Borders)>, <Book: Ender's Game by Orson Scott Card (available at Collins Bookstore)>, <Book: Permutation City by Greg Egan (available at Angus and Robertson)>]"""
|
|
)
|
|
|
|
|
|
class TestTicket11101(TransactionTestCase):
|
|
|
|
def ticket_11101(self):
|
|
management.call_command(
|
|
'loaddata',
|
|
'thingy.json',
|
|
verbosity=0,
|
|
commit=False
|
|
)
|
|
self.assertEqual(Thingy.objects.count(), 1)
|
|
transaction.rollback()
|
|
self.assertEqual(Thingy.objects.count(), 0)
|
|
transaction.commit()
|
|
|
|
@skipUnlessDBFeature('supports_transactions')
|
|
def test_ticket_11101(self):
|
|
"""Test that fixtures can be rolled back (ticket #11101)."""
|
|
ticket_11101 = transaction.commit_manually(self.ticket_11101)
|
|
ticket_11101()
|