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Update test_dict.py from CPython v3.11.2 by JaeyoungAhn · Pull Request #4763 · RustPython/RustPython · GitHub

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Update test_dict.py from CPython v3.11.2 #4763

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Merged
youknowone merged 1 commit into from
Mar 25, 2023
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Update test_dict.py from CPython v3.11.2 #4763

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63 changes: 27 additions & 36 deletions Lib/test/test_dict.py
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@
import unittest
import weakref
from test import support
from test.support import import_helper


class DictTest(unittest.TestCase):
Expand Down Expand Up @@ -896,6 +897,14 @@ def _tracked(self, t):
gc.collect()
self.assertTrue(gc.is_tracked(t), t)

def test_string_keys_can_track_values(self):
# Test that this doesn't leak.
for i in range(10):
d = {}
for j in range(10):
d[str(j)] = j
d["foo"] = d

@support.cpython_only
def test_track_literals(self):
# Test GC-optimization of dict literals
Expand Down Expand Up @@ -999,8 +1008,8 @@ class C:

@support.cpython_only
def test_splittable_setdefault(self):
"""split table must be combined when setdefault()
breaks insertion order"""
"""split table must keep correct insertion
order when attributes are adding using setdefault()"""
a, b = self.make_shared_key_dict(2)

a['a'] = 1
Expand All @@ -1010,7 +1019,6 @@ def test_splittable_setdefault(self):
size_b = sys.getsizeof(b)
b['a'] = 1

self.assertGreater(size_b, size_a)
self.assertEqual(list(a), ['x', 'y', 'z', 'a', 'b'])
self.assertEqual(list(b), ['x', 'y', 'z', 'b', 'a'])

Expand All @@ -1025,7 +1033,6 @@ def test_splittable_del(self):
with self.assertRaises(KeyError):
del a['y']

self.assertGreater(sys.getsizeof(a), orig_size)
self.assertEqual(list(a), ['x', 'z'])
self.assertEqual(list(b), ['x', 'y', 'z'])

Expand All @@ -1036,16 +1043,12 @@ def test_splittable_del(self):

@support.cpython_only
def test_splittable_pop(self):
"""split table must be combined when d.pop(k)"""
a, b = self.make_shared_key_dict(2)

orig_size = sys.getsizeof(a)

a.pop('y') # split table is combined
a.pop('y')
with self.assertRaises(KeyError):
a.pop('y')

self.assertGreater(sys.getsizeof(a), orig_size)
self.assertEqual(list(a), ['x', 'z'])
self.assertEqual(list(b), ['x', 'y', 'z'])

Expand Down Expand Up @@ -1080,34 +1083,21 @@ def test_splittable_popitem(self):
self.assertEqual(list(b), ['x', 'y', 'z'])

@support.cpython_only
def test_splittable_setattr_after_pop(self):
"""setattr() must not convert combined table into split table."""
# Issue 28147
import _testcapi

def test_splittable_update(self):
"""dict.update(other) must preserve order in other."""
class C:
pass
a = C()

a.a = 1
self.assertTrue(_testcapi.dict_hassplittable(a.__dict__))

# dict.pop() convert it to combined table
a.__dict__.pop('a')
self.assertFalse(_testcapi.dict_hassplittable(a.__dict__))

# But C should not convert a.__dict__ to split table again.
a.a = 1
self.assertFalse(_testcapi.dict_hassplittable(a.__dict__))
def __init__(self, order):
if order:
self.a, self.b, self.c = 1, 2, 3
else:
self.c, self.b, self.a = 1, 2, 3
o = C(True)
o = C(False) # o.__dict__ has reversed order.
self.assertEqual(list(o.__dict__), ["c", "b", "a"])

# Same for popitem()
a = C()
a.a = 2
self.assertTrue(_testcapi.dict_hassplittable(a.__dict__))
a.__dict__.popitem()
self.assertFalse(_testcapi.dict_hassplittable(a.__dict__))
a.a = 3
self.assertFalse(_testcapi.dict_hassplittable(a.__dict__))
d = {}
d.update(o.__dict__)
self.assertEqual(list(d), ["c", "b", "a"])

def test_iterator_pickling(self):
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
Expand Down Expand Up @@ -1586,7 +1576,8 @@ class CAPITest(unittest.TestCase):
# Test _PyDict_GetItem_KnownHash()
@support.cpython_only
def test_getitem_knownhash(self):
from _testcapi import dict_getitem_knownhash
_testcapi = import_helper.import_module('_testcapi')
dict_getitem_knownhash = _testcapi.dict_getitem_knownhash

d = {'x': 1, 'y': 2, 'z': 3}
self.assertEqual(dict_getitem_knownhash(d, 'x', hash('x')), 1)
Expand Down
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