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# Copyright 2009-2015 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.
"""Tests for the dbref module."""
import pickle
import sys
sys.path[0:0] = [""]
from bson.dbref import DBRef
from bson.objectid import ObjectId
from test import unittest
from copy import deepcopy
class TestDBRef(unittest.TestCase):
def test_creation(self):
a = ObjectId()
self.assertRaises(TypeError, DBRef)
self.assertRaises(TypeError, DBRef, "coll")
self.assertRaises(TypeError, DBRef, 4, a)
self.assertRaises(TypeError, DBRef, 1.5, a)
self.assertRaises(TypeError, DBRef, a, a)
self.assertRaises(TypeError, DBRef, None, a)
self.assertRaises(TypeError, DBRef, "coll", a, 5)
self.assertTrue(DBRef("coll", a))
self.assertTrue(DBRef(u"coll", a))
self.assertTrue(DBRef(u"coll", 5))
self.assertTrue(DBRef(u"coll", 5, "database"))
def test_read_only(self):
a = DBRef("coll", ObjectId())
def foo():
a.collection = "blah"
def bar():
a.id = "aoeu"
self.assertEqual("coll", a.collection)
a.id
self.assertEqual(None, a.database)
self.assertRaises(AttributeError, foo)
self.assertRaises(AttributeError, bar)
def test_repr(self):
self.assertEqual(repr(DBRef("coll",
ObjectId("1234567890abcdef12345678"))),
"DBRef('coll', ObjectId('1234567890abcdef12345678'))")
self.assertEqual(repr(DBRef(u"coll",
ObjectId("1234567890abcdef12345678"))),
"DBRef(%s, ObjectId('1234567890abcdef12345678'))"
% (repr(u'coll'),)
)
self.assertEqual(repr(DBRef("coll", 5, foo="bar")),
"DBRef('coll', 5, foo='bar')")
self.assertEqual(repr(DBRef("coll",
ObjectId("1234567890abcdef12345678"), "foo")),
"DBRef('coll', ObjectId('1234567890abcdef12345678'), "
"'foo')")
def test_equality(self):
obj_id = ObjectId("1234567890abcdef12345678")
self.assertEqual(DBRef('foo', 5), DBRef('foo', 5))
self.assertEqual(DBRef("coll", obj_id), DBRef(u"coll", obj_id))
self.assertNotEqual(DBRef("coll", obj_id),
DBRef(u"coll", obj_id, "foo"))
self.assertNotEqual(DBRef("coll", obj_id), DBRef("col", obj_id))
self.assertNotEqual(DBRef("coll", obj_id),
DBRef("coll", ObjectId(b"123456789011")))
self.assertNotEqual(DBRef("coll", obj_id), 4)
self.assertEqual(DBRef("coll", obj_id, "foo"),
DBRef(u"coll", obj_id, "foo"))
self.assertNotEqual(DBRef("coll", obj_id, "foo"),
DBRef(u"coll", obj_id, "bar"))
# Explicitly test inequality
self.assertFalse(DBRef('foo', 5) != DBRef('foo', 5))
self.assertFalse(DBRef("coll", obj_id) != DBRef(u"coll", obj_id))
self.assertFalse(DBRef("coll", obj_id, "foo") !=
DBRef(u"coll", obj_id, "foo"))
def test_kwargs(self):
self.assertEqual(DBRef("coll", 5, foo="bar"),
DBRef("coll", 5, foo="bar"))
self.assertNotEqual(DBRef("coll", 5, foo="bar"), DBRef("coll", 5))
self.assertNotEqual(DBRef("coll", 5, foo="bar"),
DBRef("coll", 5, foo="baz"))
self.assertEqual("bar", DBRef("coll", 5, foo="bar").foo)
self.assertRaises(AttributeError, getattr,
DBRef("coll", 5, foo="bar"), "bar")
def test_deepcopy(self):
a = DBRef('coll', 'asdf', 'db', x=[1])
b = deepcopy(a)
self.assertEqual(a, b)
self.assertNotEqual(id(a), id(b.x))
self.assertEqual(a.x, b.x)
self.assertNotEqual(id(a.x), id(b.x))
b.x[0] = 2
self.assertEqual(a.x, [1])
self.assertEqual(b.x, [2])
def test_pickling(self):
dbr = DBRef('coll', 5, foo='bar')
for protocol in [0, 1, 2, -1]:
pkl = pickle.dumps(dbr, protocol=protocol)
dbr2 = pickle.loads(pkl)
self.assertEqual(dbr, dbr2)
def test_dbref_hash(self):
dbref_1a = DBRef('collection', 'id', 'database')
dbref_1b = DBRef('collection', 'id', 'database')
self.assertEqual(hash(dbref_1a), hash(dbref_1b))
dbref_2a = DBRef('collection', 'id', 'database', custom='custom')
dbref_2b = DBRef('collection', 'id', 'database', custom='custom')
self.assertEqual(hash(dbref_2a), hash(dbref_2b))
self.assertNotEqual(hash(dbref_1a), hash(dbref_2a))
if __name__ == "__main__":
unittest.main()