mirror of https://github.com/django/django.git
658 lines
22 KiB
Python
658 lines
22 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Unittests for fixtures.
|
|
from __future__ import absolute_import, unicode_literals
|
|
|
|
import os
|
|
import re
|
|
|
|
from django.core import management
|
|
from django.core.management.base import CommandError
|
|
from django.core.management.commands.dumpdata import sort_dependencies
|
|
from django.db import transaction, IntegrityError
|
|
from django.db.models import signals
|
|
from django.test import (TestCase, TransactionTestCase, skipIfDBFeature,
|
|
skipUnlessDBFeature)
|
|
from django.test.utils import override_settings
|
|
from django.utils.six import PY3, StringIO
|
|
|
|
from .models import (Animal, Stuff, Absolute, Parent, Child, Article, Widget,
|
|
Store, Person, Book, NKChild, RefToNKChild, Circle1, Circle2, Circle3,
|
|
ExternalDependency, Thingy)
|
|
|
|
|
|
pre_save_checks = []
|
|
def animal_pre_save_check(signal, sender, instance, **kwargs):
|
|
"A signal that is used to check the type of data loaded from fixtures"
|
|
pre_save_checks.append(
|
|
(
|
|
'Count = %s (%s)' % (instance.count, type(instance.count)),
|
|
'Weight = %s (%s)' % (instance.weight, type(instance.weight)),
|
|
)
|
|
)
|
|
|
|
|
|
class TestFixtures(TestCase):
|
|
def test_duplicate_pk(self):
|
|
"""
|
|
This is a regression test for ticket #3790.
|
|
"""
|
|
# Load a fixture that uses PK=1
|
|
management.call_command(
|
|
'loaddata',
|
|
'sequence',
|
|
verbosity=0,
|
|
commit=False
|
|
)
|
|
|
|
# Create a new animal. Without a sequence reset, this new object
|
|
# will take a PK of 1 (on Postgres), and the save will fail.
|
|
|
|
animal = Animal(
|
|
name='Platypus',
|
|
latin_name='Ornithorhynchus anatinus',
|
|
count=2,
|
|
weight=2.2
|
|
)
|
|
animal.save()
|
|
self.assertGreater(animal.id, 1)
|
|
|
|
@skipIfDBFeature('interprets_empty_strings_as_nulls')
|
|
def test_pretty_print_xml(self):
|
|
"""
|
|
Regression test for ticket #4558 -- pretty printing of XML fixtures
|
|
doesn't affect parsing of None values.
|
|
"""
|
|
# Load a pretty-printed XML fixture with Nulls.
|
|
management.call_command(
|
|
'loaddata',
|
|
'pretty.xml',
|
|
verbosity=0,
|
|
commit=False
|
|
)
|
|
self.assertEqual(Stuff.objects.all()[0].name, None)
|
|
self.assertEqual(Stuff.objects.all()[0].owner, None)
|
|
|
|
@skipUnlessDBFeature('interprets_empty_strings_as_nulls')
|
|
def test_pretty_print_xml_empty_strings(self):
|
|
"""
|
|
Regression test for ticket #4558 -- pretty printing of XML fixtures
|
|
doesn't affect parsing of None values.
|
|
"""
|
|
# Load a pretty-printed XML fixture with Nulls.
|
|
management.call_command(
|
|
'loaddata',
|
|
'pretty.xml',
|
|
verbosity=0,
|
|
commit=False
|
|
)
|
|
self.assertEqual(Stuff.objects.all()[0].name, '')
|
|
self.assertEqual(Stuff.objects.all()[0].owner, None)
|
|
|
|
def test_absolute_path(self):
|
|
"""
|
|
Regression test for ticket #6436 --
|
|
os.path.join will throw away the initial parts of a path if it
|
|
encounters an absolute path.
|
|
This means that if a fixture is specified as an absolute path,
|
|
we need to make sure we don't discover the absolute path in every
|
|
fixture directory.
|
|
"""
|
|
load_absolute_path = os.path.join(
|
|
os.path.dirname(__file__),
|
|
'fixtures',
|
|
'absolute.json'
|
|
)
|
|
management.call_command(
|
|
'loaddata',
|
|
load_absolute_path,
|
|
verbosity=0,
|
|
commit=False
|
|
)
|
|
self.assertEqual(Absolute.load_count, 1)
|
|
|
|
|
|
def test_unknown_format(self):
|
|
"""
|
|
Test for ticket #4371 -- Loading data of an unknown format should fail
|
|
Validate that error conditions are caught correctly
|
|
"""
|
|
with self.assertRaisesRegexp(management.CommandError,
|
|
"Problem installing fixture 'bad_fixture1': "
|
|
"unkn is not a known serialization format."):
|
|
management.call_command(
|
|
'loaddata',
|
|
'bad_fixture1.unkn',
|
|
verbosity=0,
|
|
commit=False,
|
|
)
|
|
|
|
@override_settings(SERIALIZATION_MODULES={'unkn': 'unexistent.path'})
|
|
def test_unimportable_serializer(self):
|
|
"""
|
|
Test that failing serializer import raises the proper error
|
|
"""
|
|
with self.assertRaisesRegexp(ImportError,
|
|
"No module named unexistent.path"):
|
|
management.call_command(
|
|
'loaddata',
|
|
'bad_fixture1.unkn',
|
|
verbosity=0,
|
|
commit=False,
|
|
)
|
|
|
|
def test_invalid_data(self):
|
|
"""
|
|
Test for ticket #4371 -- Loading a fixture file with invalid data
|
|
using explicit filename.
|
|
Validate that error conditions are caught correctly
|
|
"""
|
|
with self.assertRaisesRegexp(management.CommandError,
|
|
"No fixture data found for 'bad_fixture2'. \(File format may be invalid.\)"):
|
|
management.call_command(
|
|
'loaddata',
|
|
'bad_fixture2.xml',
|
|
verbosity=0,
|
|
commit=False,
|
|
)
|
|
|
|
def test_invalid_data_no_ext(self):
|
|
"""
|
|
Test for ticket #4371 -- Loading a fixture file with invalid data
|
|
without file extension.
|
|
Validate that error conditions are caught correctly
|
|
"""
|
|
with self.assertRaisesRegexp(management.CommandError,
|
|
"No fixture data found for 'bad_fixture2'. \(File format may be invalid.\)"):
|
|
management.call_command(
|
|
'loaddata',
|
|
'bad_fixture2',
|
|
verbosity=0,
|
|
commit=False,
|
|
)
|
|
|
|
def test_empty(self):
|
|
"""
|
|
Test for ticket #4371 -- Loading a fixture file with no data returns an error.
|
|
Validate that error conditions are caught correctly
|
|
"""
|
|
with self.assertRaisesRegexp(management.CommandError,
|
|
"No fixture data found for 'empty'. \(File format may be invalid.\)"):
|
|
management.call_command(
|
|
'loaddata',
|
|
'empty',
|
|
verbosity=0,
|
|
commit=False,
|
|
)
|
|
|
|
def test_error_message(self):
|
|
"""
|
|
(Regression for #9011 - error message is correct)
|
|
"""
|
|
with self.assertRaisesRegexp(management.CommandError,
|
|
"^No fixture data found for 'bad_fixture2'. \(File format may be invalid.\)$"):
|
|
management.call_command(
|
|
'loaddata',
|
|
'bad_fixture2',
|
|
'animal',
|
|
verbosity=0,
|
|
commit=False,
|
|
)
|
|
|
|
def test_pg_sequence_resetting_checks(self):
|
|
"""
|
|
Test for ticket #7565 -- PostgreSQL sequence resetting checks shouldn't
|
|
ascend to parent models when inheritance is used
|
|
(since they are treated individually).
|
|
"""
|
|
management.call_command(
|
|
'loaddata',
|
|
'model-inheritance.json',
|
|
verbosity=0,
|
|
commit=False
|
|
)
|
|
self.assertEqual(Parent.objects.all()[0].id, 1)
|
|
self.assertEqual(Child.objects.all()[0].id, 1)
|
|
|
|
def test_close_connection_after_loaddata(self):
|
|
"""
|
|
Test for ticket #7572 -- MySQL has a problem if the same connection is
|
|
used to create tables, load data, and then query over that data.
|
|
To compensate, we close the connection after running loaddata.
|
|
This ensures that a new connection is opened when test queries are
|
|
issued.
|
|
"""
|
|
management.call_command(
|
|
'loaddata',
|
|
'big-fixture.json',
|
|
verbosity=0,
|
|
commit=False
|
|
)
|
|
articles = Article.objects.exclude(id=9)
|
|
self.assertEqual(
|
|
list(articles.values_list('id', flat=True)),
|
|
[1, 2, 3, 4, 5, 6, 7, 8]
|
|
)
|
|
# Just for good measure, run the same query again.
|
|
# Under the influence of ticket #7572, this will
|
|
# give a different result to the previous call.
|
|
self.assertEqual(
|
|
list(articles.values_list('id', flat=True)),
|
|
[1, 2, 3, 4, 5, 6, 7, 8]
|
|
)
|
|
|
|
def test_field_value_coerce(self):
|
|
"""
|
|
Test for tickets #8298, #9942 - Field values should be coerced into the
|
|
correct type by the deserializer, not as part of the database write.
|
|
"""
|
|
global pre_save_checks
|
|
pre_save_checks = []
|
|
signals.pre_save.connect(animal_pre_save_check)
|
|
try:
|
|
management.call_command(
|
|
'loaddata',
|
|
'animal.xml',
|
|
verbosity=0,
|
|
commit=False,
|
|
)
|
|
self.assertEqual(
|
|
pre_save_checks,
|
|
[
|
|
("Count = 42 (<%s 'int'>)" % ('class' if PY3 else 'type'),
|
|
"Weight = 1.2 (<%s 'float'>)" % ('class' if PY3 else 'type'))
|
|
]
|
|
)
|
|
finally:
|
|
signals.pre_save.disconnect(animal_pre_save_check)
|
|
|
|
def test_dumpdata_uses_default_manager(self):
|
|
"""
|
|
Regression for #11286
|
|
Ensure that dumpdata honors the default manager
|
|
Dump the current contents of the database as a JSON fixture
|
|
"""
|
|
management.call_command(
|
|
'loaddata',
|
|
'animal.xml',
|
|
verbosity=0,
|
|
commit=False,
|
|
)
|
|
management.call_command(
|
|
'loaddata',
|
|
'sequence.json',
|
|
verbosity=0,
|
|
commit=False,
|
|
)
|
|
animal = Animal(
|
|
name='Platypus',
|
|
latin_name='Ornithorhynchus anatinus',
|
|
count=2,
|
|
weight=2.2
|
|
)
|
|
animal.save()
|
|
|
|
stdout = StringIO()
|
|
management.call_command(
|
|
'dumpdata',
|
|
'fixtures_regress.animal',
|
|
format='json',
|
|
stdout=stdout
|
|
)
|
|
|
|
# Output order isn't guaranteed, so check for parts
|
|
data = stdout.getvalue()
|
|
|
|
# Get rid of artifacts like '000000002' to eliminate the differences
|
|
# between different Python versions.
|
|
data = re.sub('0{6,}\d', '', data)
|
|
|
|
lion_json = '{"pk": 1, "model": "fixtures_regress.animal", "fields": {"count": 3, "weight": 1.2, "name": "Lion", "latin_name": "Panthera leo"}}'
|
|
emu_json = '{"pk": 10, "model": "fixtures_regress.animal", "fields": {"count": 42, "weight": 1.2, "name": "Emu", "latin_name": "Dromaius novaehollandiae"}}'
|
|
platypus_json = '{"pk": %d, "model": "fixtures_regress.animal", "fields": {"count": 2, "weight": 2.2, "name": "Platypus", "latin_name": "Ornithorhynchus anatinus"}}'
|
|
platypus_json = platypus_json % animal.pk
|
|
|
|
self.assertEqual(len(data), len('[%s]' % ', '.join([lion_json, emu_json, platypus_json])))
|
|
self.assertTrue(lion_json in data)
|
|
self.assertTrue(emu_json in data)
|
|
self.assertTrue(platypus_json in data)
|
|
|
|
def test_proxy_model_included(self):
|
|
"""
|
|
Regression for #11428 - Proxy models aren't included when you dumpdata
|
|
"""
|
|
stdout = StringIO()
|
|
# Create an instance of the concrete class
|
|
widget = Widget.objects.create(name='grommet')
|
|
management.call_command(
|
|
'dumpdata',
|
|
'fixtures_regress.widget',
|
|
'fixtures_regress.widgetproxy',
|
|
format='json',
|
|
stdout=stdout
|
|
)
|
|
self.assertEqual(
|
|
stdout.getvalue(),
|
|
"""[{"pk": %d, "model": "fixtures_regress.widget", "fields": {"name": "grommet"}}]"""
|
|
% widget.pk
|
|
)
|
|
|
|
def test_loaddata_works_when_fixture_has_forward_refs(self):
|
|
"""
|
|
Regression for #3615 - Forward references cause fixtures not to load in MySQL (InnoDB)
|
|
"""
|
|
management.call_command(
|
|
'loaddata',
|
|
'forward_ref.json',
|
|
verbosity=0,
|
|
commit=False
|
|
)
|
|
self.assertEqual(Book.objects.all()[0].id, 1)
|
|
self.assertEqual(Person.objects.all()[0].id, 4)
|
|
|
|
def test_loaddata_raises_error_when_fixture_has_invalid_foreign_key(self):
|
|
"""
|
|
Regression for #3615 - Ensure data with nonexistent child key references raises error
|
|
"""
|
|
with self.assertRaisesRegexp(IntegrityError,
|
|
"Problem installing fixture"):
|
|
management.call_command(
|
|
'loaddata',
|
|
'forward_ref_bad_data.json',
|
|
verbosity=0,
|
|
commit=False,
|
|
)
|
|
|
|
_cur_dir = os.path.dirname(os.path.abspath(__file__))
|
|
|
|
@override_settings(FIXTURE_DIRS=[os.path.join(_cur_dir, 'fixtures_1'),
|
|
os.path.join(_cur_dir, 'fixtures_2')])
|
|
def test_loaddata_forward_refs_split_fixtures(self):
|
|
"""
|
|
Regression for #17530 - should be able to cope with forward references
|
|
when the fixtures are not in the same files or directories.
|
|
"""
|
|
management.call_command(
|
|
'loaddata',
|
|
'forward_ref_1.json',
|
|
'forward_ref_2.json',
|
|
verbosity=0,
|
|
commit=False
|
|
)
|
|
self.assertEqual(Book.objects.all()[0].id, 1)
|
|
self.assertEqual(Person.objects.all()[0].id, 4)
|
|
|
|
def test_loaddata_no_fixture_specified(self):
|
|
"""
|
|
Regression for #7043 - Error is quickly reported when no fixtures is provided in the command line.
|
|
"""
|
|
with self.assertRaisesRegexp(management.CommandError,
|
|
"No database fixture specified. Please provide the path of "
|
|
"at least one fixture in the command line."):
|
|
management.call_command(
|
|
'loaddata',
|
|
verbosity=0,
|
|
commit=False,
|
|
)
|
|
|
|
def test_loaddata_not_existant_fixture_file(self):
|
|
stdout_output = StringIO()
|
|
management.call_command(
|
|
'loaddata',
|
|
'this_fixture_doesnt_exist',
|
|
verbosity=2,
|
|
commit=False,
|
|
stdout=stdout_output,
|
|
)
|
|
self.assertTrue("No xml fixture 'this_fixture_doesnt_exist' in" in
|
|
stdout_output.getvalue())
|
|
|
|
|
|
class NaturalKeyFixtureTests(TestCase):
|
|
|
|
def test_nk_deserialize(self):
|
|
"""
|
|
Test for ticket #13030 - Python based parser version
|
|
natural keys deserialize with fk to inheriting model
|
|
"""
|
|
management.call_command(
|
|
'loaddata',
|
|
'model-inheritance.json',
|
|
verbosity=0,
|
|
commit=False
|
|
)
|
|
management.call_command(
|
|
'loaddata',
|
|
'nk-inheritance.json',
|
|
verbosity=0,
|
|
commit=False
|
|
)
|
|
self.assertEqual(
|
|
NKChild.objects.get(pk=1).data,
|
|
'apple'
|
|
)
|
|
|
|
self.assertEqual(
|
|
RefToNKChild.objects.get(pk=1).nk_fk.data,
|
|
'apple'
|
|
)
|
|
|
|
def test_nk_deserialize_xml(self):
|
|
"""
|
|
Test for ticket #13030 - XML version
|
|
natural keys deserialize with fk to inheriting model
|
|
"""
|
|
management.call_command(
|
|
'loaddata',
|
|
'model-inheritance.json',
|
|
verbosity=0,
|
|
commit=False
|
|
)
|
|
management.call_command(
|
|
'loaddata',
|
|
'nk-inheritance.json',
|
|
verbosity=0,
|
|
commit=False
|
|
)
|
|
management.call_command(
|
|
'loaddata',
|
|
'nk-inheritance2.xml',
|
|
verbosity=0,
|
|
commit=False
|
|
)
|
|
self.assertEqual(
|
|
NKChild.objects.get(pk=2).data,
|
|
'banana'
|
|
)
|
|
self.assertEqual(
|
|
RefToNKChild.objects.get(pk=2).nk_fk.data,
|
|
'apple'
|
|
)
|
|
|
|
def test_nk_on_serialize(self):
|
|
"""
|
|
Check that natural key requirements are taken into account
|
|
when serializing models
|
|
"""
|
|
management.call_command(
|
|
'loaddata',
|
|
'forward_ref_lookup.json',
|
|
verbosity=0,
|
|
commit=False
|
|
)
|
|
|
|
stdout = StringIO()
|
|
management.call_command(
|
|
'dumpdata',
|
|
'fixtures_regress.book',
|
|
'fixtures_regress.person',
|
|
'fixtures_regress.store',
|
|
verbosity=0,
|
|
format='json',
|
|
use_natural_keys=True,
|
|
stdout=stdout,
|
|
)
|
|
self.assertEqual(
|
|
stdout.getvalue(),
|
|
"""[{"pk": 2, "model": "fixtures_regress.store", "fields": {"main": null, "name": "Amazon"}}, {"pk": 3, "model": "fixtures_regress.store", "fields": {"main": null, "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"]}}]"""
|
|
)
|
|
|
|
def test_dependency_sorting(self):
|
|
"""
|
|
Now lets check the dependency sorting explicitly
|
|
It doesn't matter what order you mention the models
|
|
Store *must* be serialized before then Person, and both
|
|
must be serialized before Book.
|
|
"""
|
|
sorted_deps = sort_dependencies(
|
|
[('fixtures_regress', [Book, Person, Store])]
|
|
)
|
|
self.assertEqual(
|
|
sorted_deps,
|
|
[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()
|