pqc/test/test_duplicate_consistency.py

74 lines
2.6 KiB
Python

"""
Checks that files duplicated across schemes/implementations are consistent.
"""
import difflib
import os
import sys
import yaml
import helpers
import pqclean
def pytest_generate_tests(metafunc):
ids = []
argvalues = []
for scheme in pqclean.Scheme.all_schemes():
for implementation in scheme.implementations:
if os.path.isfile(
os.path.join(
'duplicate_consistency',
'{}_{}.yml'.format(scheme.name, implementation.name))):
metafile = os.path.join(
'duplicate_consistency',
'{}_{}.yml'.format(scheme.name, implementation.name))
with open(metafile, encoding='utf-8') as f:
metadata = yaml.safe_load(f.read())
for group in metadata['consistency_checks']:
source = pqclean.Implementation.by_name(
group['source']['scheme'],
group['source']['implementation'])
for file in group['files']:
argvalues.append((implementation, source, file))
ids.append(
"{scheme.name} {implementation.name} {source.scheme.name}: {file}"
.format(scheme=scheme, source=source,
implementation=implementation,
file=file))
metafunc.parametrize(('implementation', 'source', 'file'),
argvalues,
ids=ids)
def file_get_contents(filename):
with open(filename) as f:
return f.read()
@helpers.filtered_test
def test_duplicate_consistency(implementation, source, file):
target_path = os.path.join(source.path(), file)
this_path = os.path.join(implementation.path(), file)
target_src = file_get_contents(target_path)
this_src = file_get_contents(this_path)
this_transformed_src = this_src.replace(
implementation.namespace_prefix(), '')
target_transformed_src = target_src.replace(source.namespace_prefix(), '')
if not this_transformed_src == target_transformed_src:
diff = difflib.unified_diff(
this_transformed_src.splitlines(keepends=True),
target_transformed_src.splitlines(keepends=True),
fromfile=this_path,
tofile=target_path)
raise AssertionError(
"Files differed:\n"
+ ''.join(diff))
if __name__ == '__main__':
import pytest
pytest.main(sys.argv)