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# Copyright 2009-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.
"""Tests for the son module."""
from __future__ import annotations
import copy
import pickle
import re
import sys
sys.path[0:0] = [""]
from collections import OrderedDict
from test import unittest
from bson.son import SON
class TestSON(unittest.TestCase):
def test_ordered_dict(self):
a1 = SON()
a1["hello"] = "world"
a1["mike"] = "awesome"
a1["hello_"] = "mike"
self.assertEqual(
list(a1.items()), [("hello", "world"), ("mike", "awesome"), ("hello_", "mike")]
)
b2 = SON({"hello": "world"})
self.assertEqual(b2["hello"], "world")
self.assertRaises(KeyError, lambda: b2["goodbye"])
def test_equality(self):
a1 = SON({"hello": "world"})
b2 = SON((("hello", "world"), ("mike", "awesome"), ("hello_", "mike")))
self.assertEqual(a1, SON({"hello": "world"}))
self.assertEqual(b2, SON((("hello", "world"), ("mike", "awesome"), ("hello_", "mike"))))
self.assertEqual(b2, {"hello_": "mike", "mike": "awesome", "hello": "world"})
self.assertNotEqual(a1, b2)
self.assertNotEqual(b2, SON((("hello_", "mike"), ("mike", "awesome"), ("hello", "world"))))
# Explicitly test inequality
self.assertFalse(a1 != SON({"hello": "world"}))
self.assertFalse(b2 != SON((("hello", "world"), ("mike", "awesome"), ("hello_", "mike"))))
self.assertFalse(b2 != {"hello_": "mike", "mike": "awesome", "hello": "world"})
# Embedded SON.
d4 = SON([("blah", {"foo": SON()})])
self.assertEqual(d4, {"blah": {"foo": {}}})
self.assertEqual(d4, {"blah": {"foo": SON()}})
self.assertNotEqual(d4, {"blah": {"foo": []}})
# Original data unaffected.
self.assertEqual(SON, d4["blah"]["foo"].__class__)
def test_to_dict(self):
a1 = SON()
b2 = SON([("blah", SON())])
c3 = SON([("blah", [SON()])])
d4 = SON([("blah", {"foo": SON()})])
self.assertEqual({}, a1.to_dict())
self.assertEqual({"blah": {}}, b2.to_dict())
self.assertEqual({"blah": [{}]}, c3.to_dict())
self.assertEqual({"blah": {"foo": {}}}, d4.to_dict())
self.assertEqual(dict, a1.to_dict().__class__)
self.assertEqual(dict, b2.to_dict()["blah"].__class__)
self.assertEqual(dict, c3.to_dict()["blah"][0].__class__)
self.assertEqual(dict, d4.to_dict()["blah"]["foo"].__class__)
# Original data unaffected.
self.assertEqual(SON, d4["blah"]["foo"].__class__)
def test_pickle(self):
simple_son = SON([])
complex_son = SON([("son", simple_son), ("list", [simple_son, simple_son])])
for protocol in range(pickle.HIGHEST_PROTOCOL + 1):
pickled = pickle.loads(pickle.dumps(complex_son, protocol=protocol))
self.assertEqual(pickled["son"], pickled["list"][0])
self.assertEqual(pickled["son"], pickled["list"][1])
def test_pickle_backwards_compatability(self):
# This string was generated by pickling a SON object in pymongo
# version 2.1.1
pickled_with_2_1_1 = (
b"ccopy_reg\n_reconstructor\np0\n(cbson.son\nSON\np1\n"
b"c__builtin__\ndict\np2\n(dp3\ntp4\nRp5\n(dp6\n"
b"S'_SON__keys'\np7\n(lp8\nsb."
)
son_2_1_1 = pickle.loads(pickled_with_2_1_1)
self.assertEqual(son_2_1_1, SON([]))
def test_copying(self):
simple_son = SON([])
complex_son = SON([("son", simple_son), ("list", [simple_son, simple_son])])
regex_son = SON([("x", re.compile("^hello.*"))])
reflexive_son = SON([("son", simple_son)])
reflexive_son["reflexive"] = reflexive_son
simple_son1 = copy.copy(simple_son)
self.assertEqual(simple_son, simple_son1)
complex_son1 = copy.copy(complex_son)
self.assertEqual(complex_son, complex_son1)
regex_son1 = copy.copy(regex_son)
self.assertEqual(regex_son, regex_son1)
reflexive_son1 = copy.copy(reflexive_son)
self.assertEqual(reflexive_son, reflexive_son1)
# Test deepcopying
simple_son1 = copy.deepcopy(simple_son)
self.assertEqual(simple_son, simple_son1)
regex_son1 = copy.deepcopy(regex_son)
self.assertEqual(regex_son, regex_son1)
complex_son1 = copy.deepcopy(complex_son)
self.assertEqual(complex_son, complex_son1)
reflexive_son1 = copy.deepcopy(reflexive_son)
self.assertEqual(list(reflexive_son), list(reflexive_son1))
self.assertEqual(id(reflexive_son1), id(reflexive_son1["reflexive"]))
def test_iteration(self):
"""Test __iter__"""
# test success case
test_son = SON([(1, 100), (2, 200), (3, 300)])
for ele in test_son:
self.assertEqual(ele * 100, test_son[ele])
def test_contains_has(self):
"""has_key and __contains__"""
test_son = SON([(1, 100), (2, 200), (3, 300)])
self.assertIn(1, test_son)
self.assertIn(2, test_son, "in failed")
self.assertNotIn(22, test_son, "in succeeded when it shouldn't")
self.assertTrue(test_son.has_key(2), "has_key failed")
self.assertFalse(test_son.has_key(22), "has_key succeeded when it shouldn't")
def test_clears(self):
"""Test clear()"""
test_son = SON([(1, 100), (2, 200), (3, 300)])
test_son.clear()
self.assertNotIn(1, test_son)
self.assertEqual(0, len(test_son))
self.assertEqual(0, len(test_son.keys()))
self.assertEqual({}, test_son.to_dict())
def test_len(self):
"""Test len"""
test_son = SON()
self.assertEqual(0, len(test_son))
test_son = SON([(1, 100), (2, 200), (3, 300)])
self.assertEqual(3, len(test_son))
test_son.popitem()
self.assertEqual(2, len(test_son))
def test_keys(self):
# Test to make sure that set operations do not throw an error
d = SON().keys()
for i in [OrderedDict, dict]:
try:
d - i().keys()
except TypeError:
self.fail(
"SON().keys() is not returning an object compatible "
"with %s objects" % (str(i))
)
# Test to verify correctness
d = SON({"k": "v"}).keys()
for i in [OrderedDict, dict]:
self.assertEqual(d | i({"k1": 0}).keys(), {"k", "k1"})
for i in [OrderedDict, dict]:
self.assertEqual(d - i({"k": 0}).keys(), set())
if __name__ == "__main__":
unittest.main()
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