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# Copyright 2018-present MongoDB, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Run the unit tests for WriteConcern."""
from __future__ import annotations
import collections
import unittest
from pymongo.errors import ConfigurationError
from pymongo.write_concern import WriteConcern
class TestWriteConcern(unittest.TestCase):
def test_invalid(self):
# Can't use fsync and j options together
self.assertRaises(ConfigurationError, WriteConcern, j=True, fsync=True)
# Can't use w=0 and j options together
self.assertRaises(ConfigurationError, WriteConcern, w=0, j=True)
def test_equality(self):
concern = WriteConcern(j=True, wtimeout=3000)
self.assertEqual(concern, WriteConcern(j=True, wtimeout=3000))
self.assertNotEqual(concern, WriteConcern())
def test_equality_to_none(self):
concern = WriteConcern()
self.assertNotEqual(concern, None)
# Explicitly use the != operator.
self.assertTrue(concern != None) # noqa: E711
def test_equality_compatible_type(self):
class _FakeWriteConcern:
def __init__(self, **document):
self.document = document
def __eq__(self, other):
try:
return self.document == other.document
except AttributeError:
return NotImplemented
def __ne__(self, other):
try:
return self.document != other.document
except AttributeError:
return NotImplemented
self.assertEqual(WriteConcern(j=True), _FakeWriteConcern(j=True))
self.assertEqual(_FakeWriteConcern(j=True), WriteConcern(j=True))
self.assertEqual(WriteConcern(j=True), _FakeWriteConcern(j=True))
self.assertEqual(WriteConcern(wtimeout=42), _FakeWriteConcern(wtimeout=42))
self.assertNotEqual(WriteConcern(wtimeout=42), _FakeWriteConcern(wtimeout=2000))
def test_equality_incompatible_type(self):
_fake_type = collections.namedtuple("NotAWriteConcern", ["document"]) # type: ignore
self.assertNotEqual(WriteConcern(j=True), _fake_type({"j": True}))
def assertRepr(self, obj):
new_obj = eval(repr(obj))
self.assertEqual(type(new_obj), type(obj))
self.assertEqual(repr(new_obj), repr(obj))
def test_repr(self):
concern = WriteConcern(j=True, wtimeout=3000, w="majority", fsync=False)
self.assertRepr(concern)
self.assertEqual(
repr(concern),
"WriteConcern(wtimeout=3000, j=True, fsync=False, w='majority')",
)
if __name__ == "__main__":
unittest.main()
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