msgpack-python/test/test_pack.py at main · DiamondLightSource/msgpack-python · GitHub

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#!/usr/bin/env python

import struct

from collections import OrderedDict

from io import BytesIO

import pytest

from msgpack import Packer, Unpacker, packb, unpackb

def check(data, use_list=False):

re = unpackb(packb(data), use_list=use_list, strict_map_key=False)

assert re == data

def testPack():

test_data = [

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 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():

re = unpackb(packb(b"abc\xeddef", use_bin_type=False), raw=False, unicode_errors="ignore")

assert re == "abcdef"

def testStrictUnicodeUnpack():

packed = packb(b"abc\xeddef", use_bin_type=False)

with pytest.raises(UnicodeDecodeError):

unpackb(packed, raw=False, use_list=1)

def testIgnoreErrorsPack():

re = unpackb(

packb("abc\udc80\udcffdef", use_bin_type=True, unicode_errors="ignore"),

raw=False,

use_list=1,

)

assert re == "abcdef"

def testDecodeBinary():

re = unpackb(packb(b"abc"), use_list=1)

assert re == b"abc"

def testPackFloat():

assert packb(1.0, use_single_float=True) == b"\xca" + struct.pack(">f", 1.0)

assert packb(1.0, use_single_float=False) == b"\xcb" + struct.pack(">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, strict_map_key=False)

for size in sizes:

assert unpacker.unpack() == {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, strict_map_key=False)

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

msgpack-python/test/test_pack.py at main · DiamondLightSource/msgpack-python · GitHub

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