pyproject-rpm-macros/test_pyproject_buildrequires.py

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from pathlib import Path
import importlib.metadata
import pytest
import yaml
from pyproject_buildrequires import generate_requires
testcases = {}
with Path(__file__).parent.joinpath('pyproject_buildrequires_testcases.yaml').open() as f:
testcases = yaml.safe_load(f)
@pytest.mark.parametrize('case_name', testcases)
def test_data(case_name, capfd, tmp_path, monkeypatch):
case = testcases[case_name]
cwd = tmp_path.joinpath('cwd')
cwd.mkdir()
monkeypatch.chdir(cwd)
wheeldir = cwd.joinpath('wheeldir')
wheeldir.mkdir()
if case.get('xfail'):
pytest.xfail(case.get('xfail'))
for filename in case:
file_types = ('.toml', '.py', '.in', '.ini', '.txt')
if filename.endswith(file_types):
cwd.joinpath(filename).write_text(case[filename])
for name, value in case.get('environ', {}).items():
monkeypatch.setenv(name, value)
def get_installed_version(dist_name):
try:
return str(case['installed'][dist_name])
except (KeyError, TypeError):
raise importlib.metadata.PackageNotFoundError(
f'info not found for {dist_name}'
)
requirement_files = case.get('requirement_files', [])
requirement_files = [open(f) for f in requirement_files]
use_build_system = case.get('use_build_system', True)
try:
generate_requires(
get_installed_version=get_installed_version,
include_runtime=case.get('include_runtime', use_build_system),
build_wheel=case.get('build_wheel', False),
wheeldir=str(wheeldir),
extras=case.get('extras', []),
toxenv=case.get('toxenv', None),
generate_extras=case.get('generate_extras', False),
requirement_files=requirement_files,
use_build_system=use_build_system,
)
except SystemExit as e:
assert e.code == case['result']
except Exception as e:
if 'except' not in case:
raise
assert type(e).__name__ == case['except']
else:
assert 0 == case['result']
# this prevents us from accidentally writing "empty" tests
# if we ever need to do that, we can remove the check or change it:
assert 'expected' in case or 'stderr_contains' in case
out, err = capfd.readouterr()
if 'expected' in case:
expected = case['expected']
if isinstance(expected, list):
# at least one of them needs to match
assert any(out == e for e in expected)
else:
assert out == expected
# stderr_contains may be a string or list of strings
stderr_contains = case.get('stderr_contains')
if stderr_contains is not None:
if isinstance(stderr_contains, str):
stderr_contains = [stderr_contains]
for expected_substring in stderr_contains:
assert expected_substring.format(**locals()) in err
finally:
for req in requirement_files:
req.close()