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#5723: merge with 3.1.

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This commit is contained in:
Ezio Melotti 2011-05-14 06:47:51 +03:00
parent 3659f27ad3
commit 6b60fb9148
19 changed files with 253 additions and 218 deletions
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60
Lib/test/json_tests/test_recursion.py
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@ -1,33 +1,16 @@
from unittest import TestCase
from test.json_tests import PyTest, CTest
import json
class JSONTestObject:
pass
class RecursiveJSONEncoder(json.JSONEncoder):
recurse = False
def default(self, o):
if o is JSONTestObject:
if self.recurse:
return [JSONTestObject]
else:
return 'JSONTestObject'
return json.JSONEncoder.default(o)
class EndlessJSONEncoder(json.JSONEncoder):
def default(self, o):
"""If check_circular is False, this will keep adding another list."""
return [o]
class TestRecursion(TestCase):
class TestRecursion:
def test_listrecursion(self):
x = []
x.append(x)
try:
json.dumps(x)
self.dumps(x)
except ValueError:
pass
else:
@ -36,7 +19,7 @@ class TestRecursion(TestCase):
y = [x]
x.append(y)
try:
json.dumps(x)
self.dumps(x)
except ValueError:
pass
else:
@ -44,13 +27,13 @@ class TestRecursion(TestCase):
y = []
x = [y, y]
# ensure that the marker is cleared
json.dumps(x)
self.dumps(x)
def test_dictrecursion(self):
x = {}
x["test"] = x
try:
json.dumps(x)
self.dumps(x)
except ValueError:
pass
else:
@ -58,9 +41,19 @@ class TestRecursion(TestCase):
x = {}
y = {"a": x, "b": x}
# ensure that the marker is cleared
json.dumps(x)
self.dumps(x)
def test_defaultrecursion(self):
class RecursiveJSONEncoder(self.json.JSONEncoder):
recurse = False
def default(self, o):
if o is JSONTestObject:
if self.recurse:
return [JSONTestObject]
else:
return 'JSONTestObject'
return pyjson.JSONEncoder.default(o)
enc = RecursiveJSONEncoder()
self.assertEqual(enc.encode(JSONTestObject), '"JSONTestObject"')
enc.recurse = True
@ -76,11 +69,11 @@ class TestRecursion(TestCase):
# test that loading highly-nested objects doesn't segfault when C
# accelerations are used. See #12017
with self.assertRaises(RuntimeError):
json.loads('{"a":' * 100000 + '1' + '}' * 100000)
self.loads('{"a":' * 100000 + '1' + '}' * 100000)
with self.assertRaises(RuntimeError):
json.loads('{"a":' * 100000 + '[1]' + '}' * 100000)
self.loads('{"a":' * 100000 + '[1]' + '}' * 100000)
with self.assertRaises(RuntimeError):
json.loads('[' * 100000 + '1' + ']' * 100000)
self.loads('[' * 100000 + '1' + ']' * 100000)
def test_highly_nested_objects_encoding(self):
# See #12051
@ -88,11 +81,20 @@ class TestRecursion(TestCase):
for x in range(100000):
l, d = [l], {'k':d}
with self.assertRaises(RuntimeError):
json.dumps(l)
self.dumps(l)
with self.assertRaises(RuntimeError):
json.dumps(d)
self.dumps(d)
def test_endless_recursion(self):
# See #12051
class EndlessJSONEncoder(self.json.JSONEncoder):
def default(self, o):
"""If check_circular is False, this will keep adding another list."""
return [o]
with self.assertRaises(RuntimeError):
EndlessJSONEncoder(check_circular=False).encode(5j)
class TestPyRecursion(TestRecursion, PyTest): pass
class TestCRecursion(TestRecursion, CTest): pass