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import os
import platform
import shutil
import pytest
import py7zr
import py7zr.helpers
testdata_path = os.path.join(os.path.dirname(__file__), "data")
targets = [
("zstd", [{"id": py7zr.FILTER_ZSTD, "level": 3}]),
("bzip2", [{"id": py7zr.FILTER_BZIP2}]),
("lzma+bcj", [{"id": py7zr.FILTER_X86}, {"id": py7zr.FILTER_LZMA, "preset": 7}]),
("lzma2+bcj", [{"id": py7zr.FILTER_X86}, {"id": py7zr.FILTER_LZMA2, "preset": 7}]),
(
"bzip2+aes",
[{"id": py7zr.FILTER_BZIP2}, {"id": py7zr.FILTER_CRYPTO_AES256_SHA256}],
),
(
"lzma2+aes",
[
{"id": py7zr.FILTER_LZMA2, "preset": 7},
{"id": py7zr.FILTER_CRYPTO_AES256_SHA256},
],
),
]
@pytest.mark.benchmark(group="compress")
@pytest.mark.parametrize("name, filters", targets)
def test_benchmark_filters_compress(tmp_path, benchmark, name, filters):
def compressor(filters, password):
with py7zr.SevenZipFile(tmp_path.joinpath("target.7z"), "w", filters=filters, password=password) as szf:
szf.writeall(tmp_path.joinpath("src"), "src")
def setup():
if tmp_path.joinpath("target.7z").exists():
tmp_path.joinpath("target.7z").unlink()
with py7zr.SevenZipFile(os.path.join(testdata_path, "mblock_1.7z"), "r") as szf:
szf.extractall(path=tmp_path.joinpath("src"))
with py7zr.SevenZipFile(os.path.join(testdata_path, "mblock_1.7z"), "r") as szf:
archive_info = szf.archiveinfo()
source_size = archive_info.uncompressed
if name.endswith("aes"):
password = "secret"
else:
password = None
benchmark.extra_info["data_size"] = source_size
benchmark.pedantic(compressor, setup=setup, args=[filters, password], iterations=1, rounds=3)
benchmark.extra_info["ratio"] = str(tmp_path.joinpath("target.7z").stat().st_size / source_size)
@pytest.mark.benchmark(group="decompress")
@pytest.mark.parametrize("name, filters", targets)
def test_benchmark_filters_decompress(tmp_path, benchmark, name, filters):
def decompressor(secret):
with py7zr.SevenZipFile(tmp_path.joinpath("target.7z"), "r", password=secret) as szf:
szf.extractall(tmp_path.joinpath("tgt"))
def setup():
shutil.rmtree(tmp_path.joinpath("tgt"), ignore_errors=True)
with py7zr.SevenZipFile(os.path.join(testdata_path, "mblock_1.7z"), "r") as szf:
szf.extractall(path=tmp_path.joinpath("src"))
with py7zr.SevenZipFile(os.path.join(testdata_path, "mblock_1.7z"), "r") as szf:
archive_info = szf.archiveinfo()
source_size = archive_info.uncompressed
if name.endswith("aes"):
password = "secret"
else:
password = None
with py7zr.SevenZipFile(tmp_path.joinpath("target.7z"), "w", filters=filters, password=password) as szf:
szf.writeall(tmp_path.joinpath("src"), "src")
benchmark.extra_info["data_size"] = source_size
benchmark.extra_info["ratio"] = str(tmp_path.joinpath("target.7z").stat().st_size / source_size)
benchmark.pedantic(decompressor, setup=setup, args=[password], iterations=1, rounds=3)
textfilters = [
("ppmd(text)", [{"id": py7zr.FILTER_PPMD, "order": 8, "mem": "4m"}]),
("deflate(text)", [{"id": py7zr.FILTER_DEFLATE}]),
("zstd(text)", [{"id": py7zr.FILTER_ZSTD, "level": 3}]),
("brotli(text)", [{"id": py7zr.FILTER_BROTLI, "level": 11}]),
]
@pytest.mark.benchmark(group="compress")
@pytest.mark.parametrize("name, filters", textfilters)
def test_benchmark_text_compress(tmp_path, benchmark, name, filters):
def compressor(filters):
with py7zr.SevenZipFile(tmp_path.joinpath("target.7z"), "w", filters=filters) as szf:
szf.writeall(tmp_path.joinpath("src"), "src")
def setup():
if tmp_path.joinpath("target.7z").exists():
tmp_path.joinpath("target.7z").unlink()
with py7zr.SevenZipFile(os.path.join(testdata_path, "bzip2_2.7z"), "r") as szf:
szf.extractall(path=tmp_path.joinpath("src"))
with py7zr.SevenZipFile(os.path.join(testdata_path, "bzip2_2.7z"), "r") as szf:
archive_info = szf.archiveinfo()
source_size = archive_info.uncompressed
benchmark.extra_info["data_size"] = source_size
benchmark.pedantic(compressor, setup=setup, args=[filters], iterations=1, rounds=3)
benchmark.extra_info["ratio"] = str(tmp_path.joinpath("target.7z").stat().st_size / source_size)
@pytest.mark.benchmark(group="decompress")
@pytest.mark.parametrize("name, filters", textfilters)
def test_benchmark_text_decompress(tmp_path, benchmark, name, filters):
def decompressor():
with py7zr.SevenZipFile(tmp_path.joinpath("target.7z"), "r") as szf:
szf.extractall(tmp_path.joinpath("tgt"))
def setup():
shutil.rmtree(tmp_path.joinpath("tgt"), ignore_errors=True)
with py7zr.SevenZipFile(os.path.join(testdata_path, "bzip2_2.7z"), "r") as szf:
szf.extractall(path=tmp_path.joinpath("src"))
with py7zr.SevenZipFile(os.path.join(testdata_path, "bzip2_2.7z"), "r") as szf:
archive_info = szf.archiveinfo()
source_size = archive_info.uncompressed
password = None
with py7zr.SevenZipFile(tmp_path.joinpath("target.7z"), "w", filters=filters, password=password) as szf:
szf.writeall(tmp_path.joinpath("src"), "src")
benchmark.extra_info["data_size"] = source_size
benchmark.extra_info["ratio"] = str(tmp_path.joinpath("target.7z").stat().st_size / source_size)
benchmark.pedantic(decompressor, setup=setup, args=[], iterations=1, rounds=3)
@pytest.mark.benchmark(group="calculate_key")
@pytest.mark.skip(reason="Don't test in ordinary development")
def test_benchmark_calculate_key1(benchmark):
password = "secret".encode("utf-16LE")
cycles = 19
salt = b""
expected = b"e\x11\xf1Pz<*\x98*\xe6\xde\xf4\xf6X\x18\xedl\xf2Be\x1a\xca\x19\xd1\\\xeb\xc6\xa6z\xe2\x89\x1d"
key = benchmark(py7zr.helpers._calculate_key1, password, cycles, salt, "sha256")
assert key == expected
@pytest.mark.benchmark(group="calculate_key")
@pytest.mark.skip(reason="Don't test in ordinary development")
@pytest.mark.skipif(platform.python_implementation() == "PyPy", reason="Will crash on PyPy")
def test_benchmark_calculate_key2(benchmark):
password = "secret".encode("utf-16LE")
cycles = 19
salt = b""
expected = b"e\x11\xf1Pz<*\x98*\xe6\xde\xf4\xf6X\x18\xedl\xf2Be\x1a\xca\x19\xd1\\\xeb\xc6\xa6z\xe2\x89\x1d"
key = benchmark(py7zr.helpers._calculate_key2, password, cycles, salt, "sha256")
assert key == expected
@pytest.mark.benchmark(group="calculate_key")
@pytest.mark.skip(reason="Don't test in ordinary development")
def test_benchmark_calculate_key3(benchmark):
password = "secret".encode("utf-16LE")
cycles = 19
salt = b""
expected = b"e\x11\xf1Pz<*\x98*\xe6\xde\xf4\xf6X\x18\xedl\xf2Be\x1a\xca\x19\xd1\\\xeb\xc6\xa6z\xe2\x89\x1d"
key = benchmark(py7zr.helpers._calculate_key3, password, cycles, salt, "sha256")
assert key == expected
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