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Copy pathtest__database_api.py
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279 lines (215 loc) · 10.9 KB
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import collections
import datetime
from packaging import version
import sys
from unittest import TestCase, skipIf, skipUnless
import mongomock
from mongomock import helpers
from mongomock import read_concern
try:
from bson import codec_options
from pymongo.read_preferences import ReadPreference
except ImportError:
pass
class UTCPlus2(datetime.tzinfo):
def fromutc(self, dt):
return dt + self.utcoffset(dt)
def tzname(self, dt):
return '<dummy UTC+2>'
def utcoffset(self, dt):
return datetime.timedelta(hours=2)
def dst(self, dt):
return datetime.timedelta()
class DatabaseAPITest(TestCase):
def setUp(self):
self.database = mongomock.MongoClient().somedb
def test__get_collection_by_attribute_underscore(self):
with self.assertRaises(AttributeError) as err_context:
self.database._users # pylint: disable=pointless-statement
self.assertIn("Database has no attribute '_users'", str(err_context.exception))
# No problem accessing it through __get_item__.
self.database['_users'].insert_one({'a': 1})
self.assertEqual(1, self.database['_users'].find_one().get('a'))
def test__session(self):
with self.assertRaises(NotImplementedError):
self.database.list_collection_names(session=1)
with self.assertRaises(NotImplementedError):
self.database.drop_collection('a', session=1)
with self.assertRaises(NotImplementedError):
self.database.create_collection('a', session=1)
with self.assertRaises(NotImplementedError):
self.database.dereference(_DBRef('somedb', 'a', 'b'), session=1)
def test__command_ping(self):
self.assertEqual({'ok': 1}, self.database.command({'ping': 1}))
def test__command_ping_string(self):
self.assertEqual({'ok': 1}, self.database.command('ping'))
def test__command_fake_ping_string(self):
with self.assertRaises(NotImplementedError):
self.assertEqual({'ok': 1}, self.database.command('a_nice_ping'))
def test__command(self):
with self.assertRaises(NotImplementedError):
self.database.command({'count': 'user'})
def test__repr(self):
self.assertEqual(
"Database(mongomock.MongoClient('localhost', 27017), 'somedb')", repr(self.database))
def test__rename_unknown_collection(self):
with self.assertRaises(mongomock.OperationFailure):
self.database.rename_collection('a', 'b')
def test__dereference(self):
self.database.a.insert_one({'_id': 'b', 'val': 42})
doc = self.database.dereference(_DBRef('somedb', 'a', 'b'))
self.assertEqual({'_id': 'b', 'val': 42}, doc)
self.assertEqual(None, self.database.dereference(_DBRef('somedb', 'a', 'a')))
self.assertEqual(None, self.database.dereference(_DBRef('somedb', 'b', 'b')))
with self.assertRaises(ValueError):
self.database.dereference(_DBRef('otherdb', 'a', 'b'))
with self.assertRaises(TypeError):
self.database.dereference('b')
def test__read_preference(self):
self.assertEqual('Primary', self.database.read_preference.name)
self.assertEqual(self.database.collection.read_preference, self.database.read_preference)
with self.assertRaises(TypeError):
self.database.get_collection('a', read_preference='nearest')
@skipIf(not helpers.HAVE_PYMONGO, 'pymongo not installed')
def test__get_collection_different_read_preference(self):
database = mongomock.MongoClient()\
.get_database('somedb', read_preference=ReadPreference.NEAREST)
self.assertEqual('Nearest', database.read_preference.name)
self.assertEqual(database.read_preference, database.collection.read_preference)
col = database.get_collection('col', read_preference=ReadPreference.PRIMARY)
self.assertEqual('Primary', col.read_preference.name)
@skipIf(not helpers.HAVE_PYMONGO, 'pymongo not installed')
def test__get_collection_different_codec_options(self):
database = mongomock.MongoClient().somedb
a = database.get_collection('a', codec_options=codec_options.CodecOptions(tz_aware=True))
self.assertTrue(a.codec_options.tz_aware)
@skipIf(not helpers.HAVE_PYMONGO, 'pymongo not installed')
def test__codec_options(self):
self.assertEqual(codec_options.CodecOptions(), self.database.codec_options)
@skipIf(not helpers.HAVE_PYMONGO, 'pymongo not installed')
def test__read_concern(self):
self.assertEqual(read_concern.ReadConcern(), self.database.read_concern)
def test__with_options(self):
with self.assertRaises(NotImplementedError):
self.database.with_options(write_concern=3)
@skipIf(not helpers.HAVE_PYMONGO, 'pymongo not installed')
def test__with_options_pymongo(self):
other = self.database.with_options(read_preference=self.database.NEAREST)
self.assertFalse(other is self.database)
self.database.coll.insert_one({'_id': 42})
self.assertEqual({'_id': 42}, other.coll.find_one())
self.database.with_options(codec_options=codec_options.CodecOptions())
self.database.with_options()
self.database.with_options(codec_options=codec_options.CodecOptions(tz_aware=True))
tz_aware_db = mongomock.MongoClient(tz_aware=True).somedb
self.assertIs(
tz_aware_db,
tz_aware_db.with_options(codec_options=codec_options.CodecOptions(tz_aware=True)))
custom_document_class = codec_options.CodecOptions(document_class=collections.OrderedDict)
with self.assertRaises(NotImplementedError):
self.database.with_options(custom_document_class)
custom_uuid_representation = codec_options.CodecOptions(uuid_representation=4)
with self.assertRaises(NotImplementedError):
self.database.with_options(custom_uuid_representation)
custom_unicode_error_hander = codec_options.CodecOptions(
unicode_decode_error_handler='ignore')
with self.assertRaises(NotImplementedError):
self.database.with_options(custom_unicode_error_hander)
custom_tzinfo = codec_options.CodecOptions(tz_aware=True, tzinfo=UTCPlus2())
with self.assertRaises(NotImplementedError):
self.database.with_options(custom_tzinfo)
@skipIf(
not helpers.HAVE_PYMONGO or helpers.PYMONGO_VERSION < version.parse('3.8'),
'pymongo not installed or <3.8')
def test__with_options_type_registry(self):
class _CustomTypeCodec(codec_options.TypeCodec):
@property
def python_type(self): # pylint: disable=invalid-overridden-method
return _CustomTypeCodec
def transform_python(self, unused_value):
pass
@property
def bson_type(self): # pylint: disable=invalid-overridden-method
return int
def transform_bson(self, unused_value):
pass
custom_type_registry = codec_options.CodecOptions(
type_registry=codec_options.TypeRegistry([_CustomTypeCodec()]))
with self.assertRaises(NotImplementedError):
self.database.with_options(custom_type_registry)
def test__collection_names(self):
self.database.create_collection('a')
self.database.create_collection('b')
if helpers.PYMONGO_VERSION >= version.parse('4.0'):
with self.assertRaises(TypeError):
self.database.collection_names()
return
self.assertEqual(set(self.database.collection_names()), set(['a', 'b']))
self.database.c.drop()
self.assertEqual(set(self.database.collection_names()), set(['a', 'b']))
def test__list_collection_names(self):
self.database.create_collection('a')
self.database.create_collection('b')
self.assertEqual(set(self.database.list_collection_names()), set(['a', 'b']))
self.database.c.drop()
self.assertEqual(set(self.database.list_collection_names()), set(['a', 'b']))
def test__list_collections(self):
self.database.create_collection('a')
with self.assertRaises(NotImplementedError):
self.database.list_collections()
def test__create_collection(self):
coll = self.database.create_collection('c')
self.assertIs(self.database.c, coll)
self.assertRaises(mongomock.CollectionInvalid,
self.database.create_collection, 'c')
def test__create_collection_bad_names(self):
with self.assertRaises(TypeError):
self.database.create_collection(3)
with self.assertRaises(TypeError):
self.database[3] # pylint: disable=pointless-statement
bad_names = (
'',
'foo..bar',
'...',
'$foo',
'.foo',
'bar.',
'foo\x00bar',
)
for name in bad_names:
with self.assertRaises(mongomock.InvalidName, msg=name):
self.database.create_collection(name)
with self.assertRaises(mongomock.InvalidName, msg=name):
self.database[name] # pylint: disable=pointless-statement
def test__lazy_create_collection(self):
col = self.database.a
self.assertEqual(set(self.database.list_collection_names()), set())
col.insert_one({'foo': 'bar'})
self.assertEqual(set(self.database.list_collection_names()), set(['a']))
def test__equality(self):
self.assertEqual(self.database, self.database)
client = mongomock.MongoClient('localhost')
self.assertNotEqual(client.a, client.b)
self.assertEqual(client.a, client.get_database('a'))
self.assertEqual(client.a, mongomock.MongoClient('localhost').a)
self.assertNotEqual(client.a, mongomock.MongoClient('example.com').a)
@skipIf(sys.version_info < (3,), 'Older versions of Python do not handle hashing the same way')
@skipUnless(
helpers.PYMONGO_VERSION < version.parse('3.12'),
"older versions of pymongo didn't have proper hashing")
def test__not_hashable(self):
with self.assertRaises(TypeError):
{self.database} # pylint: disable=pointless-statement
@skipIf(sys.version_info < (3,), 'Older versions of Python do not handle hashing the same way')
@skipIf(
helpers.PYMONGO_VERSION < version.parse('3.12'),
"older versions of pymongo didn't have proper hashing")
def test__hashable(self):
{self.database} # pylint: disable=pointless-statement
def test__bad_type_as_a_read_concern_returns_type_error(self):
client = mongomock.MongoClient()
with self.assertRaises(
TypeError, msg='read_concern must be an instance of pymongo.read_concern.ReadConcern'
):
mongomock.database.Database(client, 'foo', None, read_concern='bar')
_DBRef = collections.namedtuple('DBRef', ['database', 'collection', 'id'])
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