Gecko [ beriskala.com ]

Name	Size	Permission	Date
__pycache__	[ DIR ]	drwxr-xr-x	2026-05-01 04:20
audiodata	[ DIR ]	drwxr-xr-x	2026-05-01 04:20
capath	[ DIR ]	drwxr-xr-x	2026-05-01 04:20
cjkencodings	[ DIR ]	drwxr-xr-x	2026-05-01 04:20
data	[ DIR ]	drwxr-xr-x	2026-05-01 04:20
decimaltestdata	[ DIR ]	drwxr-xr-x	2026-05-01 04:20
encoded_modules	[ DIR ]	drwxr-xr-x	2026-05-01 04:20
imghdrdata	[ DIR ]	drwxr-xr-x	2026-05-01 04:20
namespace_pkgs	[ DIR ]	drwxr-xr-x	2026-05-01 04:20
sndhdrdata	[ DIR ]	drwxr-xr-x	2026-05-01 04:20
subprocessdata	[ DIR ]	drwxr-xr-x	2026-05-01 04:20
support	[ DIR ]	drwxr-xr-x	2026-05-01 04:20
test_email	[ DIR ]	drwxr-xr-x	2026-05-01 04:20
test_importlib	[ DIR ]	drwxr-xr-x	2026-05-01 04:20
test_json	[ DIR ]	drwxr-xr-x	2026-05-01 04:20
tracedmodules	[ DIR ]	drwxr-xr-x	2026-05-01 04:20
xmltestdata	[ DIR ]	drwxr-xr-x	2026-05-01 04:20
185test.db	16 KB	-rw-r--r--	2017-09-19 12:02
Sine-1000Hz-300ms.aif	60.25 KB	-rw-r--r--	2017-09-19 12:02
__init__.py	47 B	-rw-r--r--	2024-04-17 20:28
__main__.py	474 B	-rw-r--r--	2024-04-17 20:28
audiotests.py	9.34 KB	-rw-r--r--	2024-04-17 20:28
autotest.py	211 B	-rw-r--r--	2024-04-17 20:28
bad_coding.py	24 B	-rw-r--r--	2024-04-17 20:28
bad_coding2.py	30 B	-rw-r--r--	2024-04-17 20:28
badcert.pem	1.88 KB	-rw-r--r--	2017-09-19 12:02
badkey.pem	2.11 KB	-rw-r--r--	2017-09-19 12:02
badsyntax_3131.py	32 B	-rw-r--r--	2024-04-17 20:28
badsyntax_future3.py	172 B	-rw-r--r--	2024-04-17 20:28
badsyntax_future4.py	153 B	-rw-r--r--	2024-04-17 20:28
badsyntax_future5.py	184 B	-rw-r--r--	2024-04-17 20:28
badsyntax_future6.py	161 B	-rw-r--r--	2024-04-17 20:28
badsyntax_future7.py	196 B	-rw-r--r--	2024-04-17 20:28
badsyntax_future8.py	122 B	-rw-r--r--	2024-04-17 20:28
badsyntax_future9.py	142 B	-rw-r--r--	2024-04-17 20:28
badsyntax_pep3120.py	14 B	-rw-r--r--	2024-04-17 20:28
buffer_tests.py	10.79 KB	-rw-r--r--	2024-04-17 20:28
cfgparser.1	21 B	-rw-r--r--	2017-09-19 12:02
cfgparser.2	19.02 KB	-rw-r--r--	2017-09-19 12:02
cfgparser.3	1.55 KB	-rw-r--r--	2017-09-19 12:02
check_soundcard.vbs	411 B	-rw-r--r--	2017-09-19 12:02
cmath_testcases.txt	133.86 KB	-rw-r--r--	2017-09-19 12:02
coding20731.py	18 B	-rw-r--r--	2024-04-17 20:28
curses_tests.py	1.22 KB	-rwxr-xr-x	2024-04-17 20:28
datetimetester.py	146.82 KB	-rw-r--r--	2024-04-17 20:28
dh1024.pem	300 B	-rw-r--r--	2017-09-19 12:02
dis_module.py	76 B	-rw-r--r--	2024-04-17 20:28
doctest_aliases.py	240 B	-rw-r--r--	2024-04-17 20:28
double_const.py	1.18 KB	-rw-r--r--	2024-04-17 20:28
empty.vbs	70 B	-rw-r--r--	2017-09-19 12:02
exception_hierarchy.txt	1.69 KB	-rw-r--r--	2017-09-19 12:02
floating_points.txt	15.92 KB	-rw-r--r--	2017-09-19 12:02
fork_wait.py	2.1 KB	-rw-r--r--	2024-04-17 20:28
formatfloat_testcases.txt	7.45 KB	-rw-r--r--	2017-09-19 12:02
future_test1.py	229 B	-rw-r--r--	2024-04-17 20:28
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gdb_sample.py	153 B	-rw-r--r--	2024-04-17 20:28
ieee754.txt	3.21 KB	-rw-r--r--	2017-09-19 12:02
inspect_fodder.py	854 B	-rw-r--r--	2024-04-17 20:28
inspect_fodder2.py	1.39 KB	-rw-r--r--	2024-04-17 20:28
keycert.passwd.pem	1.79 KB	-rw-r--r--	2017-09-19 12:02
keycert.pem	1.74 KB	-rw-r--r--	2017-09-19 12:02
keycert2.pem	1.75 KB	-rw-r--r--	2017-09-19 12:02
list_tests.py	17.26 KB	-rw-r--r--	2024-04-17 20:28
lock_tests.py	25.47 KB	-rw-r--r--	2024-04-17 20:28
mailcap.txt	1.24 KB	-rw-r--r--	2017-09-19 12:02
make_ssl_certs.py	1.84 KB	-rw-r--r--	2024-04-17 20:28
mapping_tests.py	21.5 KB	-rw-r--r--	2024-04-17 20:28
math_testcases.txt	23.19 KB	-rw-r--r--	2017-09-19 12:02
memory_watchdog.py	859 B	-rw-r--r--	2024-04-17 20:28
mime.types	47.37 KB	-rw-r--r--	2017-09-19 12:02
mock_socket.py	3.32 KB	-rw-r--r--	2024-04-17 20:28
mp_fork_bomb.py	323 B	-rw-r--r--	2024-04-17 20:28
multibytecodec_support.py	14.25 KB	-rw-r--r--	2024-04-17 20:28
nokia.pem	1.88 KB	-rw-r--r--	2017-09-19 12:02
nullbytecert.pem	5.31 KB	-rw-r--r--	2017-09-19 12:02
nullcert.pem	0 B	-rw-r--r--	2017-09-19 12:02
outstanding_bugs.py	370 B	-rw-r--r--	2024-04-17 20:28
pickletester.py	60.31 KB	-rw-r--r--	2024-04-17 20:28
profilee.py	2.97 KB	-rw-r--r--	2024-04-17 20:28
pstats.pck	65.05 KB	-rw-r--r--	2017-09-19 12:02
pyclbr_input.py	648 B	-rw-r--r--	2024-04-17 20:28
pydoc_mod.py	461 B	-rw-r--r--	2024-04-17 20:28
pydocfodder.py	6.18 KB	-rw-r--r--	2024-04-17 20:28
pystone.py	7.22 KB	-rwxr-xr-x	2024-04-17 20:28
randv2_32.pck	7.34 KB	-rw-r--r--	2017-09-19 12:02
randv2_64.pck	7.19 KB	-rw-r--r--	2017-09-19 12:02
randv3.pck	7.82 KB	-rw-r--r--	2017-09-19 12:02
re_tests.py	31.06 KB	-rwxr-xr-x	2024-04-17 20:28
regrtest.py	63.54 KB	-rwxr-xr-x	2024-04-17 20:28
relimport.py	27 B	-rw-r--r--	2024-04-17 20:28
reperf.py	538 B	-rw-r--r--	2024-04-17 20:28
sample_doctest.py	1.02 KB	-rw-r--r--	2024-04-17 20:28
sample_doctest_no_docstrings.py	227 B	-rw-r--r--	2024-04-17 20:28
sample_doctest_no_doctests.py	269 B	-rw-r--r--	2024-04-17 20:28
script_helper.py	5.22 KB	-rw-r--r--	2024-04-17 20:28
selfsigned_pythontestdotnet.pem	956 B	-rw-r--r--	2017-09-19 12:02
seq_tests.py	13.49 KB	-rw-r--r--	2024-04-17 20:28
sgml_input.html	8.1 KB	-rw-r--r--	2017-09-19 12:02
sha256.pem	8.15 KB	-rw-r--r--	2017-09-19 12:02
sortperf.py	4.69 KB	-rw-r--r--	2024-04-17 20:28
ssl_cert.pem	867 B	-rw-r--r--	2017-09-19 12:02
ssl_key.passwd.pem	963 B	-rw-r--r--	2017-09-19 12:02
ssl_key.pem	916 B	-rw-r--r--	2017-09-19 12:02
ssl_servers.py	6.82 KB	-rw-r--r--	2024-04-17 20:28
string_tests.py	62.74 KB	-rw-r--r--	2024-04-17 20:28
test___all__.py	3.86 KB	-rw-r--r--	2024-04-17 20:28
test___future__.py	2.44 KB	-rw-r--r--	2024-04-17 20:28
test__locale.py	6.89 KB	-rw-r--r--	2024-04-17 20:28
test__osx_support.py	11.41 KB	-rw-r--r--	2024-04-17 20:28
test_abc.py	12.76 KB	-rw-r--r--	2024-04-17 20:28
test_abstract_numbers.py	1.49 KB	-rw-r--r--	2024-04-17 20:28
test_aifc.py	14.48 KB	-rw-r--r--	2024-04-17 20:28
test_argparse.py	158.6 KB	-rw-r--r--	2024-04-17 20:28
test_array.py	43.88 KB	-rw-r--r--	2024-04-17 20:28
test_ast.py	43.49 KB	-rw-r--r--	2024-04-17 20:28
test_asynchat.py	9.08 KB	-rw-r--r--	2024-04-17 20:28
test_asyncore.py	26.05 KB	-rw-r--r--	2024-04-17 20:28
test_atexit.py	3.53 KB	-rw-r--r--	2024-04-17 20:28
test_audioop.py	17.39 KB	-rw-r--r--	2024-04-17 20:28
test_augassign.py	7.44 KB	-rw-r--r--	2024-04-17 20:28
test_base64.py	14.34 KB	-rw-r--r--	2024-04-17 20:28
test_bigaddrspace.py	2.92 KB	-rw-r--r--	2024-04-17 20:28
test_bigmem.py	44.18 KB	-rw-r--r--	2024-04-17 20:28
test_binascii.py	9.94 KB	-rw-r--r--	2024-04-17 20:28
test_binhex.py	1.47 KB	-rw-r--r--	2024-04-17 20:28
test_binop.py	12.36 KB	-rw-r--r--	2024-04-17 20:28
test_bisect.py	13.65 KB	-rw-r--r--	2024-04-17 20:28
test_bool.py	11.81 KB	-rw-r--r--	2024-04-17 20:28
test_buffer.py	155.09 KB	-rw-r--r--	2024-04-17 20:28
test_bufio.py	2.54 KB	-rw-r--r--	2024-04-17 20:28
test_builtin.py	54.84 KB	-rw-r--r--	2024-04-17 20:28
test_bytes.py	52.86 KB	-rw-r--r--	2024-04-17 20:28
test_bz2.py	30.8 KB	-rw-r--r--	2024-04-17 20:28
test_calendar.py	38.7 KB	-rw-r--r--	2024-04-17 20:28
test_call.py	3.08 KB	-rw-r--r--	2024-04-17 20:28
test_capi.py	13.81 KB	-rw-r--r--	2024-04-17 20:28
test_cgi.py	17.34 KB	-rw-r--r--	2024-04-17 20:28
test_cgitb.py	2.49 KB	-rw-r--r--	2024-04-17 20:28
test_charmapcodec.py	1.75 KB	-rw-r--r--	2024-04-17 20:28
test_class.py	13.79 KB	-rw-r--r--	2024-04-17 20:28
test_cmath.py	20.38 KB	-rw-r--r--	2024-04-17 20:28
test_cmd.py	6.08 KB	-rw-r--r--	2024-04-17 20:28
test_cmd_line.py	15.35 KB	-rw-r--r--	2024-04-17 20:28
test_cmd_line_script.py	16.95 KB	-rw-r--r--	2024-04-17 20:28
test_code.py	3.54 KB	-rw-r--r--	2024-04-17 20:28
test_code_module.py	2.42 KB	-rw-r--r--	2024-04-17 20:28
test_codeccallbacks.py	33.17 KB	-rw-r--r--	2024-04-17 20:28
test_codecencodings_cn.py	3.38 KB	-rw-r--r--	2024-04-17 20:28
test_codecencodings_hk.py	775 B	-rw-r--r--	2024-04-17 20:28
test_codecencodings_iso2022.py	1.43 KB	-rw-r--r--	2024-04-17 20:28
test_codecencodings_jp.py	4.86 KB	-rw-r--r--	2024-04-17 20:28
test_codecencodings_kr.py	3.03 KB	-rw-r--r--	2024-04-17 20:28
test_codecencodings_tw.py	755 B	-rw-r--r--	2024-04-17 20:28
test_codecmaps_cn.py	930 B	-rw-r--r--	2024-04-17 20:28
test_codecmaps_hk.py	505 B	-rw-r--r--	2024-04-17 20:28
test_codecmaps_jp.py	1.88 KB	-rw-r--r--	2024-04-17 20:28
test_codecmaps_kr.py	1.34 KB	-rw-r--r--	2024-04-17 20:28
test_codecmaps_tw.py	880 B	-rw-r--r--	2024-04-17 20:28
test_codecs.py	96.02 KB	-rw-r--r--	2024-04-17 20:28
test_codeop.py	7.45 KB	-rw-r--r--	2024-04-17 20:28
test_coding.py	2.51 KB	-rw-r--r--	2024-04-17 20:28
test_collections.py	54.31 KB	-rw-r--r--	2024-04-17 20:28
test_colorsys.py	2.77 KB	-rw-r--r--	2024-04-17 20:28
test_compare.py	1.63 KB	-rw-r--r--	2024-04-17 20:28
test_compile.py	18.62 KB	-rw-r--r--	2024-04-17 20:28
test_compileall.py	15.73 KB	-rw-r--r--	2024-04-17 20:28
test_complex.py	27.09 KB	-rw-r--r--	2024-04-17 20:28
test_concurrent_futures.py	22.57 KB	-rw-r--r--	2024-04-17 20:28
test_configparser.py	69.26 KB	-rw-r--r--	2024-04-17 20:28
test_contains.py	2.58 KB	-rw-r--r--	2024-04-17 20:28
test_contextlib.py	21.39 KB	-rw-r--r--	2024-04-17 20:28
test_copy.py	21.9 KB	-rw-r--r--	2024-04-17 20:28
test_copyreg.py	4.12 KB	-rw-r--r--	2024-04-17 20:28
test_cprofile.py	5.32 KB	-rw-r--r--	2024-04-17 20:28
test_crashers.py	1.18 KB	-rw-r--r--	2024-04-17 20:28
test_crypt.py	1.24 KB	-rw-r--r--	2024-04-17 20:28
test_csv.py	40.9 KB	-rw-r--r--	2024-04-17 20:28
test_ctypes.py	400 B	-rw-r--r--	2024-04-17 20:28
test_curses.py	10.7 KB	-rw-r--r--	2024-04-17 20:28
test_datetime.py	1.81 KB	-rw-r--r--	2024-04-17 20:28
test_dbm.py	5.52 KB	-rw-r--r--	2024-04-17 20:28
test_dbm_dumb.py	5.49 KB	-rw-r--r--	2024-04-17 20:28
test_dbm_gnu.py	2.85 KB	-rw-r--r--	2024-04-17 20:28
test_dbm_ndbm.py	1.13 KB	-rw-r--r--	2024-04-17 20:28
test_decimal.py	197.66 KB	-rw-r--r--	2024-04-17 20:28
test_decorators.py	9.6 KB	-rw-r--r--	2024-04-17 20:28
test_defaultdict.py	5.94 KB	-rw-r--r--	2024-04-17 20:28
test_deque.py	25 KB	-rw-r--r--	2024-04-17 20:28
test_descr.py	156.64 KB	-rw-r--r--	2024-04-17 20:28
test_descrtut.py	11.5 KB	-rw-r--r--	2024-04-17 20:28
test_devpoll.py	3.49 KB	-rw-r--r--	2024-04-17 20:28
test_dict.py	31.11 KB	-rw-r--r--	2024-04-17 20:28
test_dictcomps.py	3.69 KB	-rw-r--r--	2024-04-17 20:28
test_dictviews.py	8.51 KB	-rw-r--r--	2024-04-17 20:28
test_difflib.py	10.78 KB	-rw-r--r--	2024-04-17 20:28
test_difflib_expect.html	100.86 KB	-rw-r--r--	2017-09-19 12:02
test_dis.py	12.33 KB	-rw-r--r--	2024-04-17 20:28
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test_doctest.py	81.78 KB	-rw-r--r--	2024-04-17 20:28
test_doctest.txt	300 B	-rw-r--r--	2017-09-19 12:02
test_doctest2.py	2.3 KB	-rw-r--r--	2024-04-17 20:28
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test_eof.py	855 B	-rw-r--r--	2024-04-17 20:28
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test_fnmatch.py	2.84 KB	-rw-r--r--	2024-04-17 20:28
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test_future4.py	105 B	-rw-r--r--	2024-04-17 20:28
test_future5.py	510 B	-rw-r--r--	2024-04-17 20:28
test_gc.py	29 KB	-rw-r--r--	2024-04-17 20:28
test_gdb.py	35.86 KB	-rw-r--r--	2024-04-17 20:28
test_generators.py	48.5 KB	-rw-r--r--	2024-04-17 20:28
test_genericpath.py	13.3 KB	-rw-r--r--	2024-04-17 20:28
test_genexps.py	7.12 KB	-rw-r--r--	2024-04-17 20:28
test_getargs2.py	23.74 KB	-rw-r--r--	2024-04-17 20:28
test_getopt.py	6.8 KB	-rw-r--r--	2024-04-17 20:28
test_getpass.py	5.95 KB	-rw-r--r--	2024-04-17 20:28
test_gettext.py	22.11 KB	-rw-r--r--	2024-04-17 20:28
test_glob.py	6.69 KB	-rw-r--r--	2024-04-17 20:28
test_global.py	1.25 KB	-rw-r--r--	2024-04-17 20:28
test_grammar.py	31.96 KB	-rw-r--r--	2024-04-17 20:28
test_grp.py	3.18 KB	-rw-r--r--	2024-04-17 20:28
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test_heapq.py	14.14 KB	-rw-r--r--	2024-04-17 20:28
test_hmac.py	17.23 KB	-rw-r--r--	2024-04-17 20:28
test_html.py	579 B	-rw-r--r--	2024-04-17 20:28
test_htmlparser.py	30.74 KB	-rw-r--r--	2024-04-17 20:28
test_http_cookiejar.py	70 KB	-rw-r--r--	2024-04-17 20:28
test_http_cookies.py	9.98 KB	-rw-r--r--	2024-04-17 20:28
test_httplib.py	37.59 KB	-rw-r--r--	2024-04-17 20:28
test_httpservers.py	26.35 KB	-rw-r--r--	2024-04-17 20:28
test_idle.py	1.3 KB	-rw-r--r--	2024-04-17 20:28
test_imaplib.py	15.67 KB	-rw-r--r--	2024-04-17 20:28
test_imghdr.py	4.31 KB	-rw-r--r--	2024-04-17 20:28
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Rename

import audioop
import sys
import unittest

def pack(width, data):
    return b''.join(v.to_bytes(width, sys.byteorder, signed=True) for v in data)

packs = {w: (lambda *data, width=w: pack(width, data)) for w in (1, 2, 4)}
maxvalues = {w: (1 << (8 * w - 1)) - 1 for w in (1, 2, 4)}
minvalues = {w: -1 << (8 * w - 1) for w in (1, 2, 4)}

datas = {
    1: b'\x00\x12\x45\xbb\x7f\x80\xff',
    2: packs[2](0, 0x1234, 0x4567, -0x4567, 0x7fff, -0x8000, -1),
    4: packs[4](0, 0x12345678, 0x456789ab, -0x456789ab,
                0x7fffffff, -0x80000000, -1),
}

INVALID_DATA = [
    (b'abc', 0),
    (b'abc', 2),
    (b'abc', 4),
]

class TestAudioop(unittest.TestCase):

def test_max(self):
        for w in 1, 2, 4:
            self.assertEqual(audioop.max(b'', w), 0)
            p = packs[w]
            self.assertEqual(audioop.max(p(5), w), 5)
            self.assertEqual(audioop.max(p(5, -8, -1), w), 8)
            self.assertEqual(audioop.max(p(maxvalues[w]), w), maxvalues[w])
            self.assertEqual(audioop.max(p(minvalues[w]), w), -minvalues[w])
            self.assertEqual(audioop.max(datas[w], w), -minvalues[w])

def test_minmax(self):
        for w in 1, 2, 4:
            self.assertEqual(audioop.minmax(b'', w),
                             (0x7fffffff, -0x80000000))
            p = packs[w]
            self.assertEqual(audioop.minmax(p(5), w), (5, 5))
            self.assertEqual(audioop.minmax(p(5, -8, -1), w), (-8, 5))
            self.assertEqual(audioop.minmax(p(maxvalues[w]), w),
                             (maxvalues[w], maxvalues[w]))
            self.assertEqual(audioop.minmax(p(minvalues[w]), w),
                             (minvalues[w], minvalues[w]))
            self.assertEqual(audioop.minmax(datas[w], w),
                             (minvalues[w], maxvalues[w]))

def test_maxpp(self):
        for w in 1, 2, 4:
            self.assertEqual(audioop.maxpp(b'', w), 0)
            self.assertEqual(audioop.maxpp(packs[w](*range(100)), w), 0)
            self.assertEqual(audioop.maxpp(packs[w](9, 10, 5, 5, 0, 1), w), 10)
            self.assertEqual(audioop.maxpp(datas[w], w),
                             maxvalues[w] - minvalues[w])

def test_avg(self):
        for w in 1, 2, 4:
            self.assertEqual(audioop.avg(b'', w), 0)
            p = packs[w]
            self.assertEqual(audioop.avg(p(5), w), 5)
            self .assertEqual(audioop.avg(p(5, 8), w), 6)
            self.assertEqual(audioop.avg(p(5, -8), w), -2)
            self.assertEqual(audioop.avg(p(maxvalues[w], maxvalues[w]), w),
                             maxvalues[w])
            self.assertEqual(audioop.avg(p(minvalues[w], minvalues[w]), w),
                             minvalues[w])
        self.assertEqual(audioop.avg(packs[4](0x50000000, 0x70000000), 4),
                         0x60000000)
        self.assertEqual(audioop.avg(packs[4](-0x50000000, -0x70000000), 4),
                         -0x60000000)

def test_avgpp(self):
        for w in 1, 2, 4:
            self.assertEqual(audioop.avgpp(b'', w), 0)
            self.assertEqual(audioop.avgpp(packs[w](*range(100)), w), 0)
            self.assertEqual(audioop.avgpp(packs[w](9, 10, 5, 5, 0, 1), w), 10)
        self.assertEqual(audioop.avgpp(datas[1], 1), 196)
        self.assertEqual(audioop.avgpp(datas[2], 2), 50534)
        self.assertEqual(audioop.avgpp(datas[4], 4), 3311897002)

def test_rms(self):
        for w in 1, 2, 4:
            self.assertEqual(audioop.rms(b'', w), 0)
            p = packs[w]
            self.assertEqual(audioop.rms(p(*range(100)), w), 57)
            self.assertAlmostEqual(audioop.rms(p(maxvalues[w]) * 5, w),
                                   maxvalues[w], delta=1)
            self.assertAlmostEqual(audioop.rms(p(minvalues[w]) * 5, w),
                                   -minvalues[w], delta=1)
        self.assertEqual(audioop.rms(datas[1], 1), 77)
        self.assertEqual(audioop.rms(datas[2], 2), 20001)
        self.assertEqual(audioop.rms(datas[4], 4), 1310854152)

def test_cross(self):
        for w in 1, 2, 4:
            self.assertEqual(audioop.cross(b'', w), -1)
            p = packs[w]
            self.assertEqual(audioop.cross(p(0, 1, 2), w), 0)
            self.assertEqual(audioop.cross(p(1, 2, -3, -4), w), 1)
            self.assertEqual(audioop.cross(p(-1, -2, 3, 4), w), 1)
            self.assertEqual(audioop.cross(p(0, minvalues[w]), w), 1)
            self.assertEqual(audioop.cross(p(minvalues[w], maxvalues[w]), w), 1)

def test_add(self):
        for w in 1, 2, 4:
            self.assertEqual(audioop.add(b'', b'', w), b'')
            self.assertEqual(audioop.add(datas[w], b'\0' * len(datas[w]), w),
                             datas[w])
        self.assertEqual(audioop.add(datas[1], datas[1], 1),
                         b'\x00\x24\x7f\x80\x7f\x80\xfe')
        self.assertEqual(audioop.add(datas[2], datas[2], 2),
                packs[2](0, 0x2468, 0x7fff, -0x8000, 0x7fff, -0x8000, -2))
        self.assertEqual(audioop.add(datas[4], datas[4], 4),
                packs[4](0, 0x2468acf0, 0x7fffffff, -0x80000000,
                       0x7fffffff, -0x80000000, -2))

def test_bias(self):
        for w in 1, 2, 4:
            for bias in 0, 1, -1, 127, -128, 0x7fffffff, -0x80000000:
                self.assertEqual(audioop.bias(b'', w, bias), b'')
        self.assertEqual(audioop.bias(datas[1], 1, 1),
                         b'\x01\x13\x46\xbc\x80\x81\x00')
        self.assertEqual(audioop.bias(datas[1], 1, -1),
                         b'\xff\x11\x44\xba\x7e\x7f\xfe')
        self.assertEqual(audioop.bias(datas[1], 1, 0x7fffffff),
                         b'\xff\x11\x44\xba\x7e\x7f\xfe')
        self.assertEqual(audioop.bias(datas[1], 1, -0x80000000),
                         datas[1])
        self.assertEqual(audioop.bias(datas[2], 2, 1),
                packs[2](1, 0x1235, 0x4568, -0x4566, -0x8000, -0x7fff, 0))
        self.assertEqual(audioop.bias(datas[2], 2, -1),
                packs[2](-1, 0x1233, 0x4566, -0x4568, 0x7ffe, 0x7fff, -2))
        self.assertEqual(audioop.bias(datas[2], 2, 0x7fffffff),
                packs[2](-1, 0x1233, 0x4566, -0x4568, 0x7ffe, 0x7fff, -2))
        self.assertEqual(audioop.bias(datas[2], 2, -0x80000000),
                datas[2])
        self.assertEqual(audioop.bias(datas[4], 4, 1),
                packs[4](1, 0x12345679, 0x456789ac, -0x456789aa,
                         -0x80000000, -0x7fffffff, 0))
        self.assertEqual(audioop.bias(datas[4], 4, -1),
                packs[4](-1, 0x12345677, 0x456789aa, -0x456789ac,
                         0x7ffffffe, 0x7fffffff, -2))
        self.assertEqual(audioop.bias(datas[4], 4, 0x7fffffff),
                packs[4](0x7fffffff, -0x6dcba989, -0x3a987656, 0x3a987654,
                         -2, -1, 0x7ffffffe))
        self.assertEqual(audioop.bias(datas[4], 4, -0x80000000),
                packs[4](-0x80000000, -0x6dcba988, -0x3a987655, 0x3a987655,
                         -1, 0, 0x7fffffff))

def test_lin2lin(self):
        for w in 1, 2, 4:
            self.assertEqual(audioop.lin2lin(datas[w], w, w), datas[w])

self.assertEqual(audioop.lin2lin(datas[1], 1, 2),
            packs[2](0, 0x1200, 0x4500, -0x4500, 0x7f00, -0x8000, -0x100))
        self.assertEqual(audioop.lin2lin(datas[1], 1, 4),
            packs[4](0, 0x12000000, 0x45000000, -0x45000000,
                     0x7f000000, -0x80000000, -0x1000000))
        self.assertEqual(audioop.lin2lin(datas[2], 2, 1),
            b'\x00\x12\x45\xba\x7f\x80\xff')
        self.assertEqual(audioop.lin2lin(datas[2], 2, 4),
            packs[4](0, 0x12340000, 0x45670000, -0x45670000,
                     0x7fff0000, -0x80000000, -0x10000))
        self.assertEqual(audioop.lin2lin(datas[4], 4, 1),
            b'\x00\x12\x45\xba\x7f\x80\xff')
        self.assertEqual(audioop.lin2lin(datas[4], 4, 2),
            packs[2](0, 0x1234, 0x4567, -0x4568, 0x7fff, -0x8000, -1))

def test_adpcm2lin(self):
        self.assertEqual(audioop.adpcm2lin(b'\x07\x7f\x7f', 1, None),
                         (b'\x00\x00\x00\xff\x00\xff', (-179, 40)))
        self.assertEqual(audioop.adpcm2lin(b'\x07\x7f\x7f', 2, None),
                         (packs[2](0, 0xb, 0x29, -0x16, 0x72, -0xb3), (-179, 40)))
        self.assertEqual(audioop.adpcm2lin(b'\x07\x7f\x7f', 4, None),
                         (packs[4](0, 0xb0000, 0x290000, -0x160000, 0x720000,
                                   -0xb30000), (-179, 40)))

# Very cursory test
        for w in 1, 2, 4:
            self.assertEqual(audioop.adpcm2lin(b'\0' * 5, w, None),
                             (b'\0' * w * 10, (0, 0)))

def test_lin2adpcm(self):
        self.assertEqual(audioop.lin2adpcm(datas[1], 1, None),
                         (b'\x07\x7f\x7f', (-221, 39)))
        self.assertEqual(audioop.lin2adpcm(datas[2], 2, None),
                         (b'\x07\x7f\x7f', (31, 39)))
        self.assertEqual(audioop.lin2adpcm(datas[4], 4, None),
                         (b'\x07\x7f\x7f', (31, 39)))

# Very cursory test
        for w in 1, 2, 4:
            self.assertEqual(audioop.lin2adpcm(b'\0' * w * 10, w, None),
                             (b'\0' * 5, (0, 0)))

def test_lin2alaw(self):
        self.assertEqual(audioop.lin2alaw(datas[1], 1),
                         b'\xd5\x87\xa4\x24\xaa\x2a\x5a')
        self.assertEqual(audioop.lin2alaw(datas[2], 2),
                         b'\xd5\x87\xa4\x24\xaa\x2a\x55')
        self.assertEqual(audioop.lin2alaw(datas[4], 4),
                         b'\xd5\x87\xa4\x24\xaa\x2a\x55')

def test_alaw2lin(self):
        encoded = b'\x00\x03\x24\x2a\x51\x54\x55\x58\x6b\x71\x7f'\
                  b'\x80\x83\xa4\xaa\xd1\xd4\xd5\xd8\xeb\xf1\xff'
        src = [-688, -720, -2240, -4032, -9, -3, -1, -27, -244, -82, -106,
               688, 720, 2240, 4032, 9, 3, 1, 27, 244, 82, 106]
        for w in 1, 2, 4:
            self.assertEqual(audioop.alaw2lin(encoded, w),
                             packs[w](*(x << (w * 8) >> 13 for x in src)))

encoded = bytes(range(256))
        for w in 2, 4:
            decoded = audioop.alaw2lin(encoded, w)
            self.assertEqual(audioop.lin2alaw(decoded, w), encoded)

def test_lin2ulaw(self):
        self.assertEqual(audioop.lin2ulaw(datas[1], 1),
                         b'\xff\xad\x8e\x0e\x80\x00\x67')
        self.assertEqual(audioop.lin2ulaw(datas[2], 2),
                         b'\xff\xad\x8e\x0e\x80\x00\x7e')
        self.assertEqual(audioop.lin2ulaw(datas[4], 4),
                         b'\xff\xad\x8e\x0e\x80\x00\x7e')

def test_ulaw2lin(self):
        encoded = b'\x00\x0e\x28\x3f\x57\x6a\x76\x7c\x7e\x7f'\
                  b'\x80\x8e\xa8\xbf\xd7\xea\xf6\xfc\xfe\xff'
        src = [-8031, -4447, -1471, -495, -163, -53, -18, -6, -2, 0,
               8031, 4447, 1471, 495, 163, 53, 18, 6, 2, 0]
        for w in 1, 2, 4:
            self.assertEqual(audioop.ulaw2lin(encoded, w),
                             packs[w](*(x << (w * 8) >> 14 for x in src)))

# Current u-law implementation has two codes fo 0: 0x7f and 0xff.
        encoded = bytes(range(127)) + bytes(range(128, 256))
        for w in 2, 4:
            decoded = audioop.ulaw2lin(encoded, w)
            self.assertEqual(audioop.lin2ulaw(decoded, w), encoded)

def test_mul(self):
        for w in 1, 2, 4:
            self.assertEqual(audioop.mul(b'', w, 2), b'')
            self.assertEqual(audioop.mul(datas[w], w, 0),
                             b'\0' * len(datas[w]))
            self.assertEqual(audioop.mul(datas[w], w, 1),
                             datas[w])
        self.assertEqual(audioop.mul(datas[1], 1, 2),
                         b'\x00\x24\x7f\x80\x7f\x80\xfe')
        self.assertEqual(audioop.mul(datas[2], 2, 2),
                packs[2](0, 0x2468, 0x7fff, -0x8000, 0x7fff, -0x8000, -2))
        self.assertEqual(audioop.mul(datas[4], 4, 2),
                packs[4](0, 0x2468acf0, 0x7fffffff, -0x80000000,
                         0x7fffffff, -0x80000000, -2))

def test_ratecv(self):
        for w in 1, 2, 4:
            self.assertEqual(audioop.ratecv(b'', w, 1, 8000, 8000, None),
                             (b'', (-1, ((0, 0),))))
            self.assertEqual(audioop.ratecv(b'', w, 5, 8000, 8000, None),
                             (b'', (-1, ((0, 0),) * 5)))
            self.assertEqual(audioop.ratecv(b'', w, 1, 8000, 16000, None),
                             (b'', (-2, ((0, 0),))))
            self.assertEqual(audioop.ratecv(datas[w], w, 1, 8000, 8000, None)[0],
                             datas[w])
        state = None
        d1, state = audioop.ratecv(b'\x00\x01\x02', 1, 1, 8000, 16000, state)
        d2, state = audioop.ratecv(b'\x00\x01\x02', 1, 1, 8000, 16000, state)
        self.assertEqual(d1 + d2, b'\000\000\001\001\002\001\000\000\001\001\002')

for w in 1, 2, 4:
            d0, state0 = audioop.ratecv(datas[w], w, 1, 8000, 16000, None)
            d, state = b'', None
            for i in range(0, len(datas[w]), w):
                d1, state = audioop.ratecv(datas[w][i:i + w], w, 1,
                                           8000, 16000, state)
                d += d1
            self.assertEqual(d, d0)
            self.assertEqual(state, state0)

def test_reverse(self):
        for w in 1, 2, 4:
            self.assertEqual(audioop.reverse(b'', w), b'')
            self.assertEqual(audioop.reverse(packs[w](0, 1, 2), w),
                             packs[w](2, 1, 0))

def test_tomono(self):
        for w in 1, 2, 4:
            data1 = datas[w]
            data2 = bytearray(2 * len(data1))
            for k in range(w):
                data2[k::2*w] = data1[k::w]
            self.assertEqual(audioop.tomono(data2, w, 1, 0), data1)
            self.assertEqual(audioop.tomono(data2, w, 0, 1), b'\0' * len(data1))
            for k in range(w):
                data2[k+w::2*w] = data1[k::w]
            self.assertEqual(audioop.tomono(data2, w, 0.5, 0.5), data1)

def test_tostereo(self):
        for w in 1, 2, 4:
            data1 = datas[w]
            data2 = bytearray(2 * len(data1))
            for k in range(w):
                data2[k::2*w] = data1[k::w]
            self.assertEqual(audioop.tostereo(data1, w, 1, 0), data2)
            self.assertEqual(audioop.tostereo(data1, w, 0, 0), b'\0' * len(data2))
            for k in range(w):
                data2[k+w::2*w] = data1[k::w]
            self.assertEqual(audioop.tostereo(data1, w, 1, 1), data2)

def test_findfactor(self):
        self.assertEqual(audioop.findfactor(datas[2], datas[2]), 1.0)
        self.assertEqual(audioop.findfactor(b'\0' * len(datas[2]), datas[2]),
                         0.0)

def test_findfit(self):
        self.assertEqual(audioop.findfit(datas[2], datas[2]), (0, 1.0))
        self.assertEqual(audioop.findfit(datas[2], packs[2](1, 2, 0)),
                         (1, 8038.8))
        self.assertEqual(audioop.findfit(datas[2][:-2] * 5 + datas[2], datas[2]),
                         (30, 1.0))

def test_findmax(self):
        self.assertEqual(audioop.findmax(datas[2], 1), 5)

def test_getsample(self):
        for w in 1, 2, 4:
            data = packs[w](0, 1, -1, maxvalues[w], minvalues[w])
            self.assertEqual(audioop.getsample(data, w, 0), 0)
            self.assertEqual(audioop.getsample(data, w, 1), 1)
            self.assertEqual(audioop.getsample(data, w, 2), -1)
            self.assertEqual(audioop.getsample(data, w, 3), maxvalues[w])
            self.assertEqual(audioop.getsample(data, w, 4), minvalues[w])

def test_negativelen(self):
        # from issue 3306, previously it segfaulted
        self.assertRaises(audioop.error,
            audioop.findmax, bytes(range(256)), -2392392)

def test_issue7673(self):
        state = None
        for data, size in INVALID_DATA:
            size2 = size
            self.assertRaises(audioop.error, audioop.getsample, data, size, 0)
            self.assertRaises(audioop.error, audioop.max, data, size)
            self.assertRaises(audioop.error, audioop.minmax, data, size)
            self.assertRaises(audioop.error, audioop.avg, data, size)
            self.assertRaises(audioop.error, audioop.rms, data, size)
            self.assertRaises(audioop.error, audioop.avgpp, data, size)
            self.assertRaises(audioop.error, audioop.maxpp, data, size)
            self.assertRaises(audioop.error, audioop.cross, data, size)
            self.assertRaises(audioop.error, audioop.mul, data, size, 1.0)
            self.assertRaises(audioop.error, audioop.tomono, data, size, 0.5, 0.5)
            self.assertRaises(audioop.error, audioop.tostereo, data, size, 0.5, 0.5)
            self.assertRaises(audioop.error, audioop.add, data, data, size)
            self.assertRaises(audioop.error, audioop.bias, data, size, 0)
            self.assertRaises(audioop.error, audioop.reverse, data, size)
            self.assertRaises(audioop.error, audioop.lin2lin, data, size, size2)
            self.assertRaises(audioop.error, audioop.ratecv, data, size, 1, 1, 1, state)
            self.assertRaises(audioop.error, audioop.lin2ulaw, data, size)
            self.assertRaises(audioop.error, audioop.lin2alaw, data, size)
            self.assertRaises(audioop.error, audioop.lin2adpcm, data, size, state)

def test_wrongsize(self):
        data = b'abcdefgh'
        state = None
        for size in (-1, 0, 3, 5, 1024):
            self.assertRaises(audioop.error, audioop.ulaw2lin, data, size)
            self.assertRaises(audioop.error, audioop.alaw2lin, data, size)
            self.assertRaises(audioop.error, audioop.adpcm2lin, data, size, state)

if __name__ == '__main__':
    unittest.main()