test_version.py

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import importlib
import re
from pathlib import Path
from unittest.mock import patch

import pytest


def _get_project_name_from_pyproject() -> str:
    repo_root = Path(__file__).resolve().parent.parent.parent
    pyproject = repo_root / "pyproject.toml"
    content = pyproject.read_text()
    in_project = False
    for line in content.splitlines():
        if line.strip() == "[project]":
            in_project = True
            continue
        if in_project and line.strip().startswith("["):
            break
        if in_project:
            match = re.match(r'^\s*name\s*=\s*["\']([^"\']+)["\']', line)
            if match:
                return match.group(1)
    pytest.fail("Could not find name in [project] section of pyproject.toml")


def test_version_resolved_using_package_name_from_pyproject():
    expected_name = _get_project_name_from_pyproject()
    with patch("importlib.metadata.version", return_value="1.2.3") as mock_version:
        import nodescraper

        importlib.reload(nodescraper)
        assert nodescraper.__version__ == "1.2.3"
        mock_version.assert_called_once_with(
            expected_name
        ), "nodescraper.__init__ must call version() with the same name as pyproject.toml [project] name"


def test_version_unknown_when_package_not_found():
    from importlib.metadata import PackageNotFoundError

    expected_name = _get_project_name_from_pyproject()
    with patch("importlib.metadata.version", side_effect=PackageNotFoundError(expected_name)):
        import nodescraper

        importlib.reload(nodescraper)
        assert nodescraper.__version__ == "unknown"