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from unittest.mock import patch
import pytest
from snakeoil import compression
from snakeoil.process import CommandNotFound, find_binary
def hide_binary(*binaries: str):
def mock_find_binary(name):
if name in binaries:
raise CommandNotFound(name)
return find_binary(name)
return patch("snakeoil.process.find_binary", side_effect=mock_find_binary)
class Base:
module: str = ""
decompressed_test_data: bytes = b""
compressed_test_data: bytes = b""
def decompress(self, data: bytes) -> bytes:
raise NotImplementedError(self, "decompress")
@pytest.mark.parametrize("parallelize", (True, False))
@pytest.mark.parametrize("level", (1, 9))
def test_compress_data(self, level, parallelize):
compressed = compression.compress_data(
self.module,
self.decompressed_test_data,
level=level,
parallelize=parallelize,
)
assert compressed
assert self.decompress(compressed) == self.decompressed_test_data
@pytest.mark.parametrize("parallelize", (True, False))
def test_decompress_data(self, parallelize):
assert self.decompressed_test_data == compression.decompress_data(
self.module, self.compressed_test_data, parallelize=parallelize
)
@pytest.mark.parametrize("parallelize", (True, False))
@pytest.mark.parametrize("level", (1, 9))
def test_compress_handle(self, tmp_path, level, parallelize):
path = tmp_path / f"test.{self.module}"
stream = compression.compress_handle(
self.module, str(path), level=level, parallelize=parallelize
)
stream.write(self.decompressed_test_data)
stream.close()
assert self.decompress(path.read_bytes()) == self.decompressed_test_data
with path.open("wb") as file:
stream = compression.compress_handle(
self.module, file, level=level, parallelize=parallelize
)
stream.write(self.decompressed_test_data)
stream.close()
assert self.decompress(path.read_bytes()) == self.decompressed_test_data
with path.open("wb") as file:
stream = compression.compress_handle(
self.module, file.fileno(), level=level, parallelize=parallelize
)
stream.write(self.decompressed_test_data)
stream.close()
assert self.decompress(path.read_bytes()) == self.decompressed_test_data
with pytest.raises(TypeError):
compression.compress_handle(
self.module, b"", level=level, parallelize=parallelize
)
@pytest.mark.parametrize("parallelize", (True, False))
def test_decompress_handle(self, tmp_path, parallelize):
path = tmp_path / f"test.{self.module}"
path.write_bytes(self.compressed_test_data)
stream = compression.decompress_handle(
self.module, str(path), parallelize=parallelize
)
assert stream.read() == self.decompressed_test_data
stream.close()
with path.open("rb") as file:
stream = compression.decompress_handle(
self.module, file, parallelize=parallelize
)
assert stream.read() == self.decompressed_test_data
stream.close()
with path.open("rb") as file:
stream = compression.decompress_handle(
self.module, file.fileno(), parallelize=parallelize
)
assert stream.read() == self.decompressed_test_data
stream.close()
with pytest.raises(TypeError):
compression.decompress_handle(self.module, b"", parallelize=parallelize)
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