from pathlib import Path import io import pytest import yaml from pyproject_buildrequires import generate_requires try: import importlib.metadata as importlib_metadata except ImportError: import importlib_metadata testcases = {} with Path(__file__).parent.joinpath('testcases.yaml').open() as f: testcases = yaml.safe_load(f) @pytest.mark.parametrize('case_name', testcases) def test_data(case_name, capsys, tmp_path, monkeypatch): case = testcases[case_name] cwd = tmp_path.joinpath('cwd') cwd.mkdir() monkeypatch.chdir(cwd) if case.get('xfail'): pytest.xfail(case.get('xfail')) for filename in 'pyproject.toml', 'setup.py', 'tox.ini': if filename in case: cwd.joinpath(filename).write_text(case[filename]) 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}' ) try: generate_requires( get_installed_version=get_installed_version, include_runtime=case.get('include_runtime', False), extras=case.get('extras', ''), toxenv=case.get('toxenv', None), ) 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'] captured = capsys.readouterr() assert captured.out == case['expected']