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#!/usr/bin/env python
# coding: utf-8
from __future__ import absolute_import, division, print_function, unicode_literals
from collections import OrderedDict
from io import BytesIO
import struct
import pytest
from pytest import raises, xfail
from msgpack import packb, unpackb, Unpacker, Packer, pack
def check(data, use_list=False):
re = unpackb(packb(data), use_list=use_list)
assert re == data
def testPack():
test_data = [
0, 1, 127, 128, 255, 256, 65535, 65536, 4294967295, 4294967296,
-1, -32, -33, -128, -129, -32768, -32769, -4294967296, -4294967297,
1.0,
b"", b"a", b"a"*31, b"a"*32,
None, True, False,
(), ((),), ((), None,),
{None: 0},
(1<<23),
]
for td in test_data:
check(td)
def testPackUnicode():
test_data = ["", "abcd", ["defgh"], "Русский текст"]
for td in test_data:
re = unpackb(packb(td), use_list=1, raw=False)
assert re == td
packer = Packer()
data = packer.pack(td)
re = Unpacker(BytesIO(data), raw=False, use_list=1).unpack()
assert re == td
def testPackUTF32(): # deprecated
try:
test_data = [
"",
"abcd",
["defgh"],
"Русский текст",
]
for td in test_data:
with pytest.deprecated_call():
re = unpackb(packb(td, encoding='utf-32'), use_list=1, encoding='utf-32')
assert re == td
except LookupError as e:
xfail(e)
def testPackBytes():
test_data = [
b"", b"abcd", (b"defgh",),
]
for td in test_data:
check(td)
def testPackByteArrays():
test_data = [
bytearray(b""), bytearray(b"abcd"), (bytearray(b"defgh"),),
]
for td in test_data:
check(td)
def testIgnoreUnicodeErrors(): # deprecated
with pytest.deprecated_call():
re = unpackb(packb(b'abc\xeddef'), encoding='utf-8', unicode_errors='ignore', use_list=1)
assert re == "abcdef"
def testStrictUnicodeUnpack():
packed = packb(b'abc\xeddef')
with pytest.raises(UnicodeDecodeError):
unpackb(packed, raw=False, use_list=1)
def testStrictUnicodePack(): # deprecated
with raises(UnicodeEncodeError):
with pytest.deprecated_call():
packb("abc\xeddef", encoding='ascii', unicode_errors='strict')
def testIgnoreErrorsPack(): # deprecated
with pytest.deprecated_call():
re = unpackb(packb("abcФФФdef", encoding='ascii', unicode_errors='ignore'), raw=False, use_list=1)
assert re == "abcdef"
def testDecodeBinary():
re = unpackb(packb(b"abc"), encoding=None, use_list=1)
assert re == b"abc"
def testPackFloat():
assert packb(1.0, use_single_float=True) == b'\xca' + struct.pack(str('>f'), 1.0)
assert packb(1.0, use_single_float=False) == b'\xcb' + struct.pack(str('>d'), 1.0)
def testArraySize(sizes=[0, 5, 50, 1000]):
bio = BytesIO()
packer = Packer()
for size in sizes:
bio.write(packer.pack_array_header(size))
for i in range(size):
bio.write(packer.pack(i))
bio.seek(0)
unpacker = Unpacker(bio, use_list=1)
for size in sizes:
assert unpacker.unpack() == list(range(size))
def test_manualreset(sizes=[0, 5, 50, 1000]):
packer = Packer(autoreset=False)
for size in sizes:
packer.pack_array_header(size)
for i in range(size):
packer.pack(i)
bio = BytesIO(packer.bytes())
unpacker = Unpacker(bio, use_list=1)
for size in sizes:
assert unpacker.unpack() == list(range(size))
packer.reset()
assert packer.bytes() == b''
def testMapSize(sizes=[0, 5, 50, 1000]):
bio = BytesIO()
packer = Packer()
for size in sizes:
bio.write(packer.pack_map_header(size))
for i in range(size):
bio.write(packer.pack(i)) # key
bio.write(packer.pack(i * 2)) # value
bio.seek(0)
unpacker = Unpacker(bio)
for size in sizes:
assert unpacker.unpack() == dict((i, i * 2) for i in range(size))
def test_odict():
seq = [(b'one', 1), (b'two', 2), (b'three', 3), (b'four', 4)]
od = OrderedDict(seq)
assert unpackb(packb(od), use_list=1) == dict(seq)
def pair_hook(seq):
return list(seq)
assert unpackb(packb(od), object_pairs_hook=pair_hook, use_list=1) == seq
def test_pairlist():
pairlist = [(b'a', 1), (2, b'b'), (b'foo', b'bar')]
packer = Packer()
packed = packer.pack_map_pairs(pairlist)
unpacked = unpackb(packed, object_pairs_hook=list)
assert pairlist == unpacked
def test_get_buffer():
packer = Packer(autoreset=0, use_bin_type=True)
packer.pack([1, 2])
strm = BytesIO()
strm.write(packer.getbuffer())
written = strm.getvalue()
expected = packb([1, 2], use_bin_type=True)
assert written == expected
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