mirror of
https://github.com/django/django.git
synced 2024-12-23 09:36:06 +00:00
871 lines
35 KiB
Python
871 lines
35 KiB
Python
import datetime
|
|
import decimal
|
|
import enum
|
|
import functools
|
|
import math
|
|
import os
|
|
import pathlib
|
|
import re
|
|
import sys
|
|
import uuid
|
|
from unittest import mock
|
|
|
|
try:
|
|
import zoneinfo
|
|
except ImportError:
|
|
from backports import zoneinfo
|
|
|
|
try:
|
|
import pytz
|
|
except ImportError:
|
|
pytz = None
|
|
|
|
import custom_migration_operations.more_operations
|
|
import custom_migration_operations.operations
|
|
|
|
from django import get_version
|
|
from django.conf import SettingsReference, settings
|
|
from django.core.validators import EmailValidator, RegexValidator
|
|
from django.db import migrations, models
|
|
from django.db.migrations.serializer import BaseSerializer
|
|
from django.db.migrations.writer import MigrationWriter, OperationWriter
|
|
from django.test import SimpleTestCase
|
|
from django.utils.deconstruct import deconstructible
|
|
from django.utils.functional import SimpleLazyObject
|
|
from django.utils.timezone import get_default_timezone, get_fixed_timezone, utc
|
|
from django.utils.translation import gettext_lazy as _
|
|
|
|
from .models import FoodManager, FoodQuerySet
|
|
|
|
|
|
class DeconstructibleInstances:
|
|
def deconstruct(self):
|
|
return ('DeconstructibleInstances', [], {})
|
|
|
|
|
|
class Money(decimal.Decimal):
|
|
def deconstruct(self):
|
|
return (
|
|
'%s.%s' % (self.__class__.__module__, self.__class__.__name__),
|
|
[str(self)],
|
|
{}
|
|
)
|
|
|
|
|
|
class TestModel1:
|
|
def upload_to(self):
|
|
return '/somewhere/dynamic/'
|
|
thing = models.FileField(upload_to=upload_to)
|
|
|
|
|
|
class TextEnum(enum.Enum):
|
|
A = 'a-value'
|
|
B = 'value-b'
|
|
|
|
|
|
class TextTranslatedEnum(enum.Enum):
|
|
A = _('a-value')
|
|
B = _('value-b')
|
|
|
|
|
|
class BinaryEnum(enum.Enum):
|
|
A = b'a-value'
|
|
B = b'value-b'
|
|
|
|
|
|
class IntEnum(enum.IntEnum):
|
|
A = 1
|
|
B = 2
|
|
|
|
|
|
class OperationWriterTests(SimpleTestCase):
|
|
|
|
def test_empty_signature(self):
|
|
operation = custom_migration_operations.operations.TestOperation()
|
|
buff, imports = OperationWriter(operation, indentation=0).serialize()
|
|
self.assertEqual(imports, {'import custom_migration_operations.operations'})
|
|
self.assertEqual(
|
|
buff,
|
|
'custom_migration_operations.operations.TestOperation(\n'
|
|
'),'
|
|
)
|
|
|
|
def test_args_signature(self):
|
|
operation = custom_migration_operations.operations.ArgsOperation(1, 2)
|
|
buff, imports = OperationWriter(operation, indentation=0).serialize()
|
|
self.assertEqual(imports, {'import custom_migration_operations.operations'})
|
|
self.assertEqual(
|
|
buff,
|
|
'custom_migration_operations.operations.ArgsOperation(\n'
|
|
' arg1=1,\n'
|
|
' arg2=2,\n'
|
|
'),'
|
|
)
|
|
|
|
def test_kwargs_signature(self):
|
|
operation = custom_migration_operations.operations.KwargsOperation(kwarg1=1)
|
|
buff, imports = OperationWriter(operation, indentation=0).serialize()
|
|
self.assertEqual(imports, {'import custom_migration_operations.operations'})
|
|
self.assertEqual(
|
|
buff,
|
|
'custom_migration_operations.operations.KwargsOperation(\n'
|
|
' kwarg1=1,\n'
|
|
'),'
|
|
)
|
|
|
|
def test_args_kwargs_signature(self):
|
|
operation = custom_migration_operations.operations.ArgsKwargsOperation(1, 2, kwarg2=4)
|
|
buff, imports = OperationWriter(operation, indentation=0).serialize()
|
|
self.assertEqual(imports, {'import custom_migration_operations.operations'})
|
|
self.assertEqual(
|
|
buff,
|
|
'custom_migration_operations.operations.ArgsKwargsOperation(\n'
|
|
' arg1=1,\n'
|
|
' arg2=2,\n'
|
|
' kwarg2=4,\n'
|
|
'),'
|
|
)
|
|
|
|
def test_nested_args_signature(self):
|
|
operation = custom_migration_operations.operations.ArgsOperation(
|
|
custom_migration_operations.operations.ArgsOperation(1, 2),
|
|
custom_migration_operations.operations.KwargsOperation(kwarg1=3, kwarg2=4)
|
|
)
|
|
buff, imports = OperationWriter(operation, indentation=0).serialize()
|
|
self.assertEqual(imports, {'import custom_migration_operations.operations'})
|
|
self.assertEqual(
|
|
buff,
|
|
'custom_migration_operations.operations.ArgsOperation(\n'
|
|
' arg1=custom_migration_operations.operations.ArgsOperation(\n'
|
|
' arg1=1,\n'
|
|
' arg2=2,\n'
|
|
' ),\n'
|
|
' arg2=custom_migration_operations.operations.KwargsOperation(\n'
|
|
' kwarg1=3,\n'
|
|
' kwarg2=4,\n'
|
|
' ),\n'
|
|
'),'
|
|
)
|
|
|
|
def test_multiline_args_signature(self):
|
|
operation = custom_migration_operations.operations.ArgsOperation("test\n arg1", "test\narg2")
|
|
buff, imports = OperationWriter(operation, indentation=0).serialize()
|
|
self.assertEqual(imports, {'import custom_migration_operations.operations'})
|
|
self.assertEqual(
|
|
buff,
|
|
"custom_migration_operations.operations.ArgsOperation(\n"
|
|
" arg1='test\\n arg1',\n"
|
|
" arg2='test\\narg2',\n"
|
|
"),"
|
|
)
|
|
|
|
def test_expand_args_signature(self):
|
|
operation = custom_migration_operations.operations.ExpandArgsOperation([1, 2])
|
|
buff, imports = OperationWriter(operation, indentation=0).serialize()
|
|
self.assertEqual(imports, {'import custom_migration_operations.operations'})
|
|
self.assertEqual(
|
|
buff,
|
|
'custom_migration_operations.operations.ExpandArgsOperation(\n'
|
|
' arg=[\n'
|
|
' 1,\n'
|
|
' 2,\n'
|
|
' ],\n'
|
|
'),'
|
|
)
|
|
|
|
def test_nested_operation_expand_args_signature(self):
|
|
operation = custom_migration_operations.operations.ExpandArgsOperation(
|
|
arg=[
|
|
custom_migration_operations.operations.KwargsOperation(
|
|
kwarg1=1,
|
|
kwarg2=2,
|
|
),
|
|
]
|
|
)
|
|
buff, imports = OperationWriter(operation, indentation=0).serialize()
|
|
self.assertEqual(imports, {'import custom_migration_operations.operations'})
|
|
self.assertEqual(
|
|
buff,
|
|
'custom_migration_operations.operations.ExpandArgsOperation(\n'
|
|
' arg=[\n'
|
|
' custom_migration_operations.operations.KwargsOperation(\n'
|
|
' kwarg1=1,\n'
|
|
' kwarg2=2,\n'
|
|
' ),\n'
|
|
' ],\n'
|
|
'),'
|
|
)
|
|
|
|
|
|
class WriterTests(SimpleTestCase):
|
|
"""
|
|
Tests the migration writer (makes migration files from Migration instances)
|
|
"""
|
|
class NestedEnum(enum.IntEnum):
|
|
A = 1
|
|
B = 2
|
|
|
|
class NestedChoices(models.TextChoices):
|
|
X = 'X', 'X value'
|
|
Y = 'Y', 'Y value'
|
|
|
|
def safe_exec(self, string, value=None):
|
|
d = {}
|
|
try:
|
|
exec(string, globals(), d)
|
|
except Exception as e:
|
|
if value:
|
|
self.fail("Could not exec %r (from value %r): %s" % (string.strip(), value, e))
|
|
else:
|
|
self.fail("Could not exec %r: %s" % (string.strip(), e))
|
|
return d
|
|
|
|
def serialize_round_trip(self, value):
|
|
string, imports = MigrationWriter.serialize(value)
|
|
return self.safe_exec("%s\ntest_value_result = %s" % ("\n".join(imports), string), value)['test_value_result']
|
|
|
|
def assertSerializedEqual(self, value):
|
|
self.assertEqual(self.serialize_round_trip(value), value)
|
|
|
|
def assertSerializedResultEqual(self, value, target):
|
|
self.assertEqual(MigrationWriter.serialize(value), target)
|
|
|
|
def assertSerializedFieldEqual(self, value):
|
|
new_value = self.serialize_round_trip(value)
|
|
self.assertEqual(value.__class__, new_value.__class__)
|
|
self.assertEqual(value.max_length, new_value.max_length)
|
|
self.assertEqual(value.null, new_value.null)
|
|
self.assertEqual(value.unique, new_value.unique)
|
|
|
|
def test_serialize_numbers(self):
|
|
self.assertSerializedEqual(1)
|
|
self.assertSerializedEqual(1.2)
|
|
self.assertTrue(math.isinf(self.serialize_round_trip(float("inf"))))
|
|
self.assertTrue(math.isinf(self.serialize_round_trip(float("-inf"))))
|
|
self.assertTrue(math.isnan(self.serialize_round_trip(float("nan"))))
|
|
|
|
self.assertSerializedEqual(decimal.Decimal('1.3'))
|
|
self.assertSerializedResultEqual(
|
|
decimal.Decimal('1.3'),
|
|
("Decimal('1.3')", {'from decimal import Decimal'})
|
|
)
|
|
|
|
self.assertSerializedEqual(Money('1.3'))
|
|
self.assertSerializedResultEqual(
|
|
Money('1.3'),
|
|
("migrations.test_writer.Money('1.3')", {'import migrations.test_writer'})
|
|
)
|
|
|
|
def test_serialize_constants(self):
|
|
self.assertSerializedEqual(None)
|
|
self.assertSerializedEqual(True)
|
|
self.assertSerializedEqual(False)
|
|
|
|
def test_serialize_strings(self):
|
|
self.assertSerializedEqual(b"foobar")
|
|
string, imports = MigrationWriter.serialize(b"foobar")
|
|
self.assertEqual(string, "b'foobar'")
|
|
self.assertSerializedEqual("föobár")
|
|
string, imports = MigrationWriter.serialize("foobar")
|
|
self.assertEqual(string, "'foobar'")
|
|
|
|
def test_serialize_multiline_strings(self):
|
|
self.assertSerializedEqual(b"foo\nbar")
|
|
string, imports = MigrationWriter.serialize(b"foo\nbar")
|
|
self.assertEqual(string, "b'foo\\nbar'")
|
|
self.assertSerializedEqual("föo\nbár")
|
|
string, imports = MigrationWriter.serialize("foo\nbar")
|
|
self.assertEqual(string, "'foo\\nbar'")
|
|
|
|
def test_serialize_collections(self):
|
|
self.assertSerializedEqual({1: 2})
|
|
self.assertSerializedEqual(["a", 2, True, None])
|
|
self.assertSerializedEqual({2, 3, "eighty"})
|
|
self.assertSerializedEqual({"lalalala": ["yeah", "no", "maybe"]})
|
|
self.assertSerializedEqual(_('Hello'))
|
|
|
|
def test_serialize_builtin_types(self):
|
|
self.assertSerializedEqual([list, tuple, dict, set, frozenset])
|
|
self.assertSerializedResultEqual(
|
|
[list, tuple, dict, set, frozenset],
|
|
("[list, tuple, dict, set, frozenset]", set())
|
|
)
|
|
|
|
def test_serialize_lazy_objects(self):
|
|
pattern = re.compile(r'^foo$')
|
|
lazy_pattern = SimpleLazyObject(lambda: pattern)
|
|
self.assertEqual(self.serialize_round_trip(lazy_pattern), pattern)
|
|
|
|
def test_serialize_enums(self):
|
|
self.assertSerializedResultEqual(
|
|
TextEnum.A,
|
|
("migrations.test_writer.TextEnum['A']", {'import migrations.test_writer'})
|
|
)
|
|
self.assertSerializedResultEqual(
|
|
TextTranslatedEnum.A,
|
|
("migrations.test_writer.TextTranslatedEnum['A']", {'import migrations.test_writer'})
|
|
)
|
|
self.assertSerializedResultEqual(
|
|
BinaryEnum.A,
|
|
("migrations.test_writer.BinaryEnum['A']", {'import migrations.test_writer'})
|
|
)
|
|
self.assertSerializedResultEqual(
|
|
IntEnum.B,
|
|
("migrations.test_writer.IntEnum['B']", {'import migrations.test_writer'})
|
|
)
|
|
self.assertSerializedResultEqual(
|
|
self.NestedEnum.A,
|
|
(
|
|
"migrations.test_writer.WriterTests.NestedEnum['A']",
|
|
{'import migrations.test_writer'},
|
|
),
|
|
)
|
|
self.assertSerializedEqual(self.NestedEnum.A)
|
|
|
|
field = models.CharField(default=TextEnum.B, choices=[(m.value, m) for m in TextEnum])
|
|
string = MigrationWriter.serialize(field)[0]
|
|
self.assertEqual(
|
|
string,
|
|
"models.CharField(choices=["
|
|
"('a-value', migrations.test_writer.TextEnum['A']), "
|
|
"('value-b', migrations.test_writer.TextEnum['B'])], "
|
|
"default=migrations.test_writer.TextEnum['B'])"
|
|
)
|
|
field = models.CharField(
|
|
default=TextTranslatedEnum.A,
|
|
choices=[(m.value, m) for m in TextTranslatedEnum],
|
|
)
|
|
string = MigrationWriter.serialize(field)[0]
|
|
self.assertEqual(
|
|
string,
|
|
"models.CharField(choices=["
|
|
"('a-value', migrations.test_writer.TextTranslatedEnum['A']), "
|
|
"('value-b', migrations.test_writer.TextTranslatedEnum['B'])], "
|
|
"default=migrations.test_writer.TextTranslatedEnum['A'])"
|
|
)
|
|
field = models.CharField(default=BinaryEnum.B, choices=[(m.value, m) for m in BinaryEnum])
|
|
string = MigrationWriter.serialize(field)[0]
|
|
self.assertEqual(
|
|
string,
|
|
"models.CharField(choices=["
|
|
"(b'a-value', migrations.test_writer.BinaryEnum['A']), "
|
|
"(b'value-b', migrations.test_writer.BinaryEnum['B'])], "
|
|
"default=migrations.test_writer.BinaryEnum['B'])"
|
|
)
|
|
field = models.IntegerField(default=IntEnum.A, choices=[(m.value, m) for m in IntEnum])
|
|
string = MigrationWriter.serialize(field)[0]
|
|
self.assertEqual(
|
|
string,
|
|
"models.IntegerField(choices=["
|
|
"(1, migrations.test_writer.IntEnum['A']), "
|
|
"(2, migrations.test_writer.IntEnum['B'])], "
|
|
"default=migrations.test_writer.IntEnum['A'])"
|
|
)
|
|
|
|
def test_serialize_choices(self):
|
|
class TextChoices(models.TextChoices):
|
|
A = 'A', 'A value'
|
|
B = 'B', 'B value'
|
|
|
|
class IntegerChoices(models.IntegerChoices):
|
|
A = 1, 'One'
|
|
B = 2, 'Two'
|
|
|
|
class DateChoices(datetime.date, models.Choices):
|
|
DATE_1 = 1969, 7, 20, 'First date'
|
|
DATE_2 = 1969, 11, 19, 'Second date'
|
|
|
|
self.assertSerializedResultEqual(TextChoices.A, ("'A'", set()))
|
|
self.assertSerializedResultEqual(IntegerChoices.A, ('1', set()))
|
|
self.assertSerializedResultEqual(
|
|
DateChoices.DATE_1,
|
|
('datetime.date(1969, 7, 20)', {'import datetime'}),
|
|
)
|
|
field = models.CharField(default=TextChoices.B, choices=TextChoices.choices)
|
|
string = MigrationWriter.serialize(field)[0]
|
|
self.assertEqual(
|
|
string,
|
|
"models.CharField(choices=[('A', 'A value'), ('B', 'B value')], "
|
|
"default='B')",
|
|
)
|
|
field = models.IntegerField(default=IntegerChoices.B, choices=IntegerChoices.choices)
|
|
string = MigrationWriter.serialize(field)[0]
|
|
self.assertEqual(
|
|
string,
|
|
"models.IntegerField(choices=[(1, 'One'), (2, 'Two')], default=2)",
|
|
)
|
|
field = models.DateField(default=DateChoices.DATE_2, choices=DateChoices.choices)
|
|
string = MigrationWriter.serialize(field)[0]
|
|
self.assertEqual(
|
|
string,
|
|
"models.DateField(choices=["
|
|
"(datetime.date(1969, 7, 20), 'First date'), "
|
|
"(datetime.date(1969, 11, 19), 'Second date')], "
|
|
"default=datetime.date(1969, 11, 19))"
|
|
)
|
|
|
|
def test_serialize_nested_class(self):
|
|
for nested_cls in [self.NestedEnum, self.NestedChoices]:
|
|
cls_name = nested_cls.__name__
|
|
with self.subTest(cls_name):
|
|
self.assertSerializedResultEqual(
|
|
nested_cls,
|
|
(
|
|
"migrations.test_writer.WriterTests.%s" % cls_name,
|
|
{'import migrations.test_writer'},
|
|
),
|
|
)
|
|
|
|
def test_serialize_uuid(self):
|
|
self.assertSerializedEqual(uuid.uuid1())
|
|
self.assertSerializedEqual(uuid.uuid4())
|
|
|
|
uuid_a = uuid.UUID('5c859437-d061-4847-b3f7-e6b78852f8c8')
|
|
uuid_b = uuid.UUID('c7853ec1-2ea3-4359-b02d-b54e8f1bcee2')
|
|
self.assertSerializedResultEqual(
|
|
uuid_a,
|
|
("uuid.UUID('5c859437-d061-4847-b3f7-e6b78852f8c8')", {'import uuid'})
|
|
)
|
|
self.assertSerializedResultEqual(
|
|
uuid_b,
|
|
("uuid.UUID('c7853ec1-2ea3-4359-b02d-b54e8f1bcee2')", {'import uuid'})
|
|
)
|
|
|
|
field = models.UUIDField(choices=((uuid_a, 'UUID A'), (uuid_b, 'UUID B')), default=uuid_a)
|
|
string = MigrationWriter.serialize(field)[0]
|
|
self.assertEqual(
|
|
string,
|
|
"models.UUIDField(choices=["
|
|
"(uuid.UUID('5c859437-d061-4847-b3f7-e6b78852f8c8'), 'UUID A'), "
|
|
"(uuid.UUID('c7853ec1-2ea3-4359-b02d-b54e8f1bcee2'), 'UUID B')], "
|
|
"default=uuid.UUID('5c859437-d061-4847-b3f7-e6b78852f8c8'))"
|
|
)
|
|
|
|
def test_serialize_pathlib(self):
|
|
# Pure path objects work in all platforms.
|
|
self.assertSerializedEqual(pathlib.PurePosixPath())
|
|
self.assertSerializedEqual(pathlib.PureWindowsPath())
|
|
path = pathlib.PurePosixPath('/path/file.txt')
|
|
expected = ("pathlib.PurePosixPath('/path/file.txt')", {'import pathlib'})
|
|
self.assertSerializedResultEqual(path, expected)
|
|
path = pathlib.PureWindowsPath('A:\\File.txt')
|
|
expected = ("pathlib.PureWindowsPath('A:/File.txt')", {'import pathlib'})
|
|
self.assertSerializedResultEqual(path, expected)
|
|
# Concrete path objects work on supported platforms.
|
|
if sys.platform == 'win32':
|
|
self.assertSerializedEqual(pathlib.WindowsPath.cwd())
|
|
path = pathlib.WindowsPath('A:\\File.txt')
|
|
expected = ("pathlib.PureWindowsPath('A:/File.txt')", {'import pathlib'})
|
|
self.assertSerializedResultEqual(path, expected)
|
|
else:
|
|
self.assertSerializedEqual(pathlib.PosixPath.cwd())
|
|
path = pathlib.PosixPath('/path/file.txt')
|
|
expected = ("pathlib.PurePosixPath('/path/file.txt')", {'import pathlib'})
|
|
self.assertSerializedResultEqual(path, expected)
|
|
|
|
field = models.FilePathField(path=pathlib.PurePosixPath('/home/user'))
|
|
string, imports = MigrationWriter.serialize(field)
|
|
self.assertEqual(
|
|
string,
|
|
"models.FilePathField(path=pathlib.PurePosixPath('/home/user'))",
|
|
)
|
|
self.assertIn('import pathlib', imports)
|
|
|
|
def test_serialize_path_like(self):
|
|
with os.scandir(os.path.dirname(__file__)) as entries:
|
|
path_like = list(entries)[0]
|
|
expected = (repr(path_like.path), {})
|
|
self.assertSerializedResultEqual(path_like, expected)
|
|
|
|
field = models.FilePathField(path=path_like)
|
|
string = MigrationWriter.serialize(field)[0]
|
|
self.assertEqual(string, 'models.FilePathField(path=%r)' % path_like.path)
|
|
|
|
def test_serialize_functions(self):
|
|
with self.assertRaisesMessage(ValueError, 'Cannot serialize function: lambda'):
|
|
self.assertSerializedEqual(lambda x: 42)
|
|
self.assertSerializedEqual(models.SET_NULL)
|
|
string, imports = MigrationWriter.serialize(models.SET(42))
|
|
self.assertEqual(string, 'models.SET(42)')
|
|
self.serialize_round_trip(models.SET(42))
|
|
|
|
def test_serialize_datetime(self):
|
|
self.assertSerializedEqual(datetime.datetime.now())
|
|
self.assertSerializedEqual(datetime.datetime.now)
|
|
self.assertSerializedEqual(datetime.datetime.today())
|
|
self.assertSerializedEqual(datetime.datetime.today)
|
|
self.assertSerializedEqual(datetime.date.today())
|
|
self.assertSerializedEqual(datetime.date.today)
|
|
self.assertSerializedEqual(datetime.datetime.now().time())
|
|
self.assertSerializedEqual(datetime.datetime(2014, 1, 1, 1, 1, tzinfo=get_default_timezone()))
|
|
self.assertSerializedEqual(datetime.datetime(2013, 12, 31, 22, 1, tzinfo=get_fixed_timezone(180)))
|
|
self.assertSerializedResultEqual(
|
|
datetime.datetime(2014, 1, 1, 1, 1),
|
|
("datetime.datetime(2014, 1, 1, 1, 1)", {'import datetime'})
|
|
)
|
|
for tzinfo in (utc, datetime.timezone.utc):
|
|
with self.subTest(tzinfo=tzinfo):
|
|
self.assertSerializedResultEqual(
|
|
datetime.datetime(2012, 1, 1, 1, 1, tzinfo=tzinfo),
|
|
(
|
|
"datetime.datetime(2012, 1, 1, 1, 1, tzinfo=utc)",
|
|
{'import datetime', 'from django.utils.timezone import utc'},
|
|
)
|
|
)
|
|
|
|
self.assertSerializedResultEqual(
|
|
datetime.datetime(2012, 1, 1, 2, 1, tzinfo=zoneinfo.ZoneInfo('Europe/Paris')),
|
|
(
|
|
"datetime.datetime(2012, 1, 1, 1, 1, tzinfo=utc)",
|
|
{'import datetime', 'from django.utils.timezone import utc'},
|
|
)
|
|
)
|
|
if pytz:
|
|
self.assertSerializedResultEqual(
|
|
pytz.timezone('Europe/Paris').localize(datetime.datetime(2012, 1, 1, 2, 1)),
|
|
(
|
|
"datetime.datetime(2012, 1, 1, 1, 1, tzinfo=utc)",
|
|
{'import datetime', 'from django.utils.timezone import utc'},
|
|
)
|
|
)
|
|
|
|
def test_serialize_fields(self):
|
|
self.assertSerializedFieldEqual(models.CharField(max_length=255))
|
|
self.assertSerializedResultEqual(
|
|
models.CharField(max_length=255),
|
|
("models.CharField(max_length=255)", {"from django.db import models"})
|
|
)
|
|
self.assertSerializedFieldEqual(models.TextField(null=True, blank=True))
|
|
self.assertSerializedResultEqual(
|
|
models.TextField(null=True, blank=True),
|
|
("models.TextField(blank=True, null=True)", {'from django.db import models'})
|
|
)
|
|
|
|
def test_serialize_settings(self):
|
|
self.assertSerializedEqual(SettingsReference(settings.AUTH_USER_MODEL, "AUTH_USER_MODEL"))
|
|
self.assertSerializedResultEqual(
|
|
SettingsReference("someapp.model", "AUTH_USER_MODEL"),
|
|
("settings.AUTH_USER_MODEL", {"from django.conf import settings"})
|
|
)
|
|
|
|
def test_serialize_iterators(self):
|
|
self.assertSerializedResultEqual(
|
|
((x, x * x) for x in range(3)),
|
|
("((0, 0), (1, 1), (2, 4))", set())
|
|
)
|
|
|
|
def test_serialize_compiled_regex(self):
|
|
"""
|
|
Make sure compiled regex can be serialized.
|
|
"""
|
|
regex = re.compile(r'^\w+$')
|
|
self.assertSerializedEqual(regex)
|
|
|
|
def test_serialize_class_based_validators(self):
|
|
"""
|
|
Ticket #22943: Test serialization of class-based validators, including
|
|
compiled regexes.
|
|
"""
|
|
validator = RegexValidator(message="hello")
|
|
string = MigrationWriter.serialize(validator)[0]
|
|
self.assertEqual(string, "django.core.validators.RegexValidator(message='hello')")
|
|
self.serialize_round_trip(validator)
|
|
|
|
# Test with a compiled regex.
|
|
validator = RegexValidator(regex=re.compile(r'^\w+$'))
|
|
string = MigrationWriter.serialize(validator)[0]
|
|
self.assertEqual(string, "django.core.validators.RegexValidator(regex=re.compile('^\\\\w+$'))")
|
|
self.serialize_round_trip(validator)
|
|
|
|
# Test a string regex with flag
|
|
validator = RegexValidator(r'^[0-9]+$', flags=re.S)
|
|
string = MigrationWriter.serialize(validator)[0]
|
|
self.assertEqual(string, "django.core.validators.RegexValidator('^[0-9]+$', flags=re.RegexFlag['DOTALL'])")
|
|
self.serialize_round_trip(validator)
|
|
|
|
# Test message and code
|
|
validator = RegexValidator('^[-a-zA-Z0-9_]+$', 'Invalid', 'invalid')
|
|
string = MigrationWriter.serialize(validator)[0]
|
|
self.assertEqual(string, "django.core.validators.RegexValidator('^[-a-zA-Z0-9_]+$', 'Invalid', 'invalid')")
|
|
self.serialize_round_trip(validator)
|
|
|
|
# Test with a subclass.
|
|
validator = EmailValidator(message="hello")
|
|
string = MigrationWriter.serialize(validator)[0]
|
|
self.assertEqual(string, "django.core.validators.EmailValidator(message='hello')")
|
|
self.serialize_round_trip(validator)
|
|
|
|
validator = deconstructible(path="migrations.test_writer.EmailValidator")(EmailValidator)(message="hello")
|
|
string = MigrationWriter.serialize(validator)[0]
|
|
self.assertEqual(string, "migrations.test_writer.EmailValidator(message='hello')")
|
|
|
|
validator = deconstructible(path="custom.EmailValidator")(EmailValidator)(message="hello")
|
|
with self.assertRaisesMessage(ImportError, "No module named 'custom'"):
|
|
MigrationWriter.serialize(validator)
|
|
|
|
validator = deconstructible(path="django.core.validators.EmailValidator2")(EmailValidator)(message="hello")
|
|
with self.assertRaisesMessage(ValueError, "Could not find object EmailValidator2 in django.core.validators."):
|
|
MigrationWriter.serialize(validator)
|
|
|
|
def test_serialize_complex_func_index(self):
|
|
index = models.Index(
|
|
models.Func('rating', function='ABS'),
|
|
models.Case(
|
|
models.When(name='special', then=models.Value('X')),
|
|
default=models.Value('other'),
|
|
),
|
|
models.ExpressionWrapper(
|
|
models.F('pages'),
|
|
output_field=models.IntegerField(),
|
|
),
|
|
models.OrderBy(models.F('name').desc()),
|
|
name='complex_func_index',
|
|
)
|
|
string, imports = MigrationWriter.serialize(index)
|
|
self.assertEqual(
|
|
string,
|
|
"models.Index(models.Func('rating', function='ABS'), "
|
|
"models.Case(models.When(name='special', then=models.Value('X')), "
|
|
"default=models.Value('other')), "
|
|
"models.ExpressionWrapper("
|
|
"models.F('pages'), output_field=models.IntegerField()), "
|
|
"models.OrderBy(models.OrderBy(models.F('name'), descending=True)), "
|
|
"name='complex_func_index')"
|
|
)
|
|
self.assertEqual(imports, {'from django.db import models'})
|
|
|
|
def test_serialize_empty_nonempty_tuple(self):
|
|
"""
|
|
Ticket #22679: makemigrations generates invalid code for (an empty
|
|
tuple) default_permissions = ()
|
|
"""
|
|
empty_tuple = ()
|
|
one_item_tuple = ('a',)
|
|
many_items_tuple = ('a', 'b', 'c')
|
|
self.assertSerializedEqual(empty_tuple)
|
|
self.assertSerializedEqual(one_item_tuple)
|
|
self.assertSerializedEqual(many_items_tuple)
|
|
|
|
def test_serialize_range(self):
|
|
string, imports = MigrationWriter.serialize(range(1, 5))
|
|
self.assertEqual(string, 'range(1, 5)')
|
|
self.assertEqual(imports, set())
|
|
|
|
def test_serialize_builtins(self):
|
|
string, imports = MigrationWriter.serialize(range)
|
|
self.assertEqual(string, 'range')
|
|
self.assertEqual(imports, set())
|
|
|
|
def test_serialize_unbound_method_reference(self):
|
|
"""An unbound method used within a class body can be serialized."""
|
|
self.serialize_round_trip(TestModel1.thing)
|
|
|
|
def test_serialize_local_function_reference(self):
|
|
"""A reference in a local scope can't be serialized."""
|
|
class TestModel2:
|
|
def upload_to(self):
|
|
return "somewhere dynamic"
|
|
thing = models.FileField(upload_to=upload_to)
|
|
|
|
with self.assertRaisesMessage(ValueError, 'Could not find function upload_to in migrations.test_writer'):
|
|
self.serialize_round_trip(TestModel2.thing)
|
|
|
|
def test_serialize_managers(self):
|
|
self.assertSerializedEqual(models.Manager())
|
|
self.assertSerializedResultEqual(
|
|
FoodQuerySet.as_manager(),
|
|
('migrations.models.FoodQuerySet.as_manager()', {'import migrations.models'})
|
|
)
|
|
self.assertSerializedEqual(FoodManager('a', 'b'))
|
|
self.assertSerializedEqual(FoodManager('x', 'y', c=3, d=4))
|
|
|
|
def test_serialize_frozensets(self):
|
|
self.assertSerializedEqual(frozenset())
|
|
self.assertSerializedEqual(frozenset("let it go"))
|
|
|
|
def test_serialize_set(self):
|
|
self.assertSerializedEqual(set())
|
|
self.assertSerializedResultEqual(set(), ('set()', set()))
|
|
self.assertSerializedEqual({'a'})
|
|
self.assertSerializedResultEqual({'a'}, ("{'a'}", set()))
|
|
|
|
def test_serialize_timedelta(self):
|
|
self.assertSerializedEqual(datetime.timedelta())
|
|
self.assertSerializedEqual(datetime.timedelta(minutes=42))
|
|
|
|
def test_serialize_functools_partial(self):
|
|
value = functools.partial(datetime.timedelta, 1, seconds=2)
|
|
result = self.serialize_round_trip(value)
|
|
self.assertEqual(result.func, value.func)
|
|
self.assertEqual(result.args, value.args)
|
|
self.assertEqual(result.keywords, value.keywords)
|
|
|
|
def test_serialize_functools_partialmethod(self):
|
|
value = functools.partialmethod(datetime.timedelta, 1, seconds=2)
|
|
result = self.serialize_round_trip(value)
|
|
self.assertIsInstance(result, functools.partialmethod)
|
|
self.assertEqual(result.func, value.func)
|
|
self.assertEqual(result.args, value.args)
|
|
self.assertEqual(result.keywords, value.keywords)
|
|
|
|
def test_serialize_type_none(self):
|
|
self.assertSerializedEqual(type(None))
|
|
|
|
def test_serialize_type_model(self):
|
|
self.assertSerializedEqual(models.Model)
|
|
self.assertSerializedResultEqual(
|
|
MigrationWriter.serialize(models.Model),
|
|
("('models.Model', {'from django.db import models'})", set()),
|
|
)
|
|
|
|
def test_simple_migration(self):
|
|
"""
|
|
Tests serializing a simple migration.
|
|
"""
|
|
fields = {
|
|
'charfield': models.DateTimeField(default=datetime.datetime.now),
|
|
'datetimefield': models.DateTimeField(default=datetime.datetime.now),
|
|
}
|
|
|
|
options = {
|
|
'verbose_name': 'My model',
|
|
'verbose_name_plural': 'My models',
|
|
}
|
|
|
|
migration = type("Migration", (migrations.Migration,), {
|
|
"operations": [
|
|
migrations.CreateModel("MyModel", tuple(fields.items()), options, (models.Model,)),
|
|
migrations.CreateModel("MyModel2", tuple(fields.items()), bases=(models.Model,)),
|
|
migrations.CreateModel(
|
|
name="MyModel3", fields=tuple(fields.items()), options=options, bases=(models.Model,)
|
|
),
|
|
migrations.DeleteModel("MyModel"),
|
|
migrations.AddField("OtherModel", "datetimefield", fields["datetimefield"]),
|
|
],
|
|
"dependencies": [("testapp", "some_other_one")],
|
|
})
|
|
writer = MigrationWriter(migration)
|
|
output = writer.as_string()
|
|
# We don't test the output formatting - that's too fragile.
|
|
# Just make sure it runs for now, and that things look alright.
|
|
result = self.safe_exec(output)
|
|
self.assertIn("Migration", result)
|
|
|
|
def test_migration_path(self):
|
|
test_apps = [
|
|
'migrations.migrations_test_apps.normal',
|
|
'migrations.migrations_test_apps.with_package_model',
|
|
'migrations.migrations_test_apps.without_init_file',
|
|
]
|
|
|
|
base_dir = os.path.dirname(os.path.dirname(__file__))
|
|
|
|
for app in test_apps:
|
|
with self.modify_settings(INSTALLED_APPS={'append': app}):
|
|
migration = migrations.Migration('0001_initial', app.split('.')[-1])
|
|
expected_path = os.path.join(base_dir, *(app.split('.') + ['migrations', '0001_initial.py']))
|
|
writer = MigrationWriter(migration)
|
|
self.assertEqual(writer.path, expected_path)
|
|
|
|
def test_custom_operation(self):
|
|
migration = type("Migration", (migrations.Migration,), {
|
|
"operations": [
|
|
custom_migration_operations.operations.TestOperation(),
|
|
custom_migration_operations.operations.CreateModel(),
|
|
migrations.CreateModel("MyModel", (), {}, (models.Model,)),
|
|
custom_migration_operations.more_operations.TestOperation()
|
|
],
|
|
"dependencies": []
|
|
})
|
|
writer = MigrationWriter(migration)
|
|
output = writer.as_string()
|
|
result = self.safe_exec(output)
|
|
self.assertIn("custom_migration_operations", result)
|
|
self.assertNotEqual(
|
|
result['custom_migration_operations'].operations.TestOperation,
|
|
result['custom_migration_operations'].more_operations.TestOperation
|
|
)
|
|
|
|
def test_sorted_imports(self):
|
|
"""
|
|
#24155 - Tests ordering of imports.
|
|
"""
|
|
migration = type("Migration", (migrations.Migration,), {
|
|
"operations": [
|
|
migrations.AddField("mymodel", "myfield", models.DateTimeField(
|
|
default=datetime.datetime(2012, 1, 1, 1, 1, tzinfo=utc),
|
|
)),
|
|
]
|
|
})
|
|
writer = MigrationWriter(migration)
|
|
output = writer.as_string()
|
|
self.assertIn(
|
|
"import datetime\n"
|
|
"from django.db import migrations, models\n"
|
|
"from django.utils.timezone import utc\n",
|
|
output
|
|
)
|
|
|
|
def test_migration_file_header_comments(self):
|
|
"""
|
|
Test comments at top of file.
|
|
"""
|
|
migration = type("Migration", (migrations.Migration,), {
|
|
"operations": []
|
|
})
|
|
dt = datetime.datetime(2015, 7, 31, 4, 40, 0, 0, tzinfo=utc)
|
|
with mock.patch('django.db.migrations.writer.now', lambda: dt):
|
|
for include_header in (True, False):
|
|
with self.subTest(include_header=include_header):
|
|
writer = MigrationWriter(migration, include_header)
|
|
output = writer.as_string()
|
|
|
|
self.assertEqual(
|
|
include_header,
|
|
output.startswith(
|
|
"# Generated by Django %s on 2015-07-31 04:40\n\n" % get_version()
|
|
)
|
|
)
|
|
if not include_header:
|
|
# Make sure the output starts with something that's not
|
|
# a comment or indentation or blank line
|
|
self.assertRegex(output.splitlines(keepends=True)[0], r"^[^#\s]+")
|
|
|
|
def test_models_import_omitted(self):
|
|
"""
|
|
django.db.models shouldn't be imported if unused.
|
|
"""
|
|
migration = type("Migration", (migrations.Migration,), {
|
|
"operations": [
|
|
migrations.AlterModelOptions(
|
|
name='model',
|
|
options={'verbose_name': 'model', 'verbose_name_plural': 'models'},
|
|
),
|
|
]
|
|
})
|
|
writer = MigrationWriter(migration)
|
|
output = writer.as_string()
|
|
self.assertIn("from django.db import migrations\n", output)
|
|
|
|
def test_deconstruct_class_arguments(self):
|
|
# Yes, it doesn't make sense to use a class as a default for a
|
|
# CharField. It does make sense for custom fields though, for example
|
|
# an enumfield that takes the enum class as an argument.
|
|
string = MigrationWriter.serialize(models.CharField(default=DeconstructibleInstances))[0]
|
|
self.assertEqual(string, "models.CharField(default=migrations.test_writer.DeconstructibleInstances)")
|
|
|
|
def test_register_serializer(self):
|
|
class ComplexSerializer(BaseSerializer):
|
|
def serialize(self):
|
|
return 'complex(%r)' % self.value, {}
|
|
|
|
MigrationWriter.register_serializer(complex, ComplexSerializer)
|
|
self.assertSerializedEqual(complex(1, 2))
|
|
MigrationWriter.unregister_serializer(complex)
|
|
with self.assertRaisesMessage(ValueError, 'Cannot serialize: (1+2j)'):
|
|
self.assertSerializedEqual(complex(1, 2))
|
|
|
|
def test_register_non_serializer(self):
|
|
with self.assertRaisesMessage(ValueError, "'TestModel1' must inherit from 'BaseSerializer'."):
|
|
MigrationWriter.register_serializer(complex, TestModel1)
|