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import os
import re
from configparser import ConfigParser
from importlib import import_module
from pathlib import Path
import pytest
from twisted import version as twisted_version
from twisted.trial import unittest
class TestScrapyUtils:
def test_required_openssl_version(self):
try:
module = import_module("OpenSSL")
except ImportError:
raise unittest.SkipTest("OpenSSL is not available")
if hasattr(module, "__version__"):
installed_version = [int(x) for x in module.__version__.split(".")[:2]]
assert installed_version >= [0, 6], "OpenSSL >= 0.6 required"
def test_pinned_twisted_version(self):
"""When running tests within a Tox environment with pinned
dependencies, make sure that the version of Twisted is the pinned
version.
See https://github.com/scrapy/scrapy/pull/4814#issuecomment-706230011
"""
if not os.environ.get("_SCRAPY_PINNED", None):
pytest.skip("Not in a pinned environment")
tox_config_file_path = Path(__file__).parent / ".." / "tox.ini"
config_parser = ConfigParser()
config_parser.read(tox_config_file_path)
pattern = r"Twisted==([\d.]+)"
match = re.search(pattern, config_parser["pinned"]["deps"])
pinned_twisted_version_string = match[1]
assert twisted_version.short() == pinned_twisted_version_string
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