mirror of https://github.com/python/cpython
50 lines
1.6 KiB
Python
50 lines
1.6 KiB
Python
from io import StringIO
|
|
from test.json_tests import PyTest, CTest
|
|
|
|
from test.support import bigmemtest, _1G
|
|
|
|
class TestDump:
|
|
def test_dump(self):
|
|
sio = StringIO()
|
|
self.json.dump({}, sio)
|
|
self.assertEqual(sio.getvalue(), '{}')
|
|
|
|
def test_dumps(self):
|
|
self.assertEqual(self.dumps({}), '{}')
|
|
|
|
def test_encode_truefalse(self):
|
|
self.assertEqual(self.dumps(
|
|
{True: False, False: True}, sort_keys=True),
|
|
'{"false": true, "true": false}')
|
|
self.assertEqual(self.dumps(
|
|
{2: 3.0, 4.0: 5, False: 1, 6: True}, sort_keys=True),
|
|
'{"false": 1, "2": 3.0, "4.0": 5, "6": true}')
|
|
|
|
# Issue 16228: Crash on encoding resized list
|
|
def test_encode_mutated(self):
|
|
a = [object()] * 10
|
|
def crasher(obj):
|
|
del a[-1]
|
|
self.assertEqual(self.dumps(a, default=crasher),
|
|
'[null, null, null, null, null]')
|
|
|
|
|
|
class TestPyDump(TestDump, PyTest): pass
|
|
|
|
class TestCDump(TestDump, CTest):
|
|
|
|
# The size requirement here is hopefully over-estimated (actual
|
|
# memory consumption depending on implementation details, and also
|
|
# system memory management, since this may allocate a lot of
|
|
# small objects).
|
|
|
|
@bigmemtest(size=_1G, memuse=1)
|
|
def test_large_list(self, size):
|
|
N = int(30 * 1024 * 1024 * (size / _1G))
|
|
l = [1] * N
|
|
encoded = self.dumps(l)
|
|
self.assertEqual(len(encoded), N * 3)
|
|
self.assertEqual(encoded[:1], "[")
|
|
self.assertEqual(encoded[-2:], "1]")
|
|
self.assertEqual(encoded[1:-2], "1, " * (N - 1))
|