"""Test the package metadata."""

import sys

from packaging.version import Version
from phylum import PKG_NAME, PKG_SUMMARY, __author__, __email__, __version__

from ..constants import PYPROJECT


def test_project_version():
    """Ensure the source version can be normalized as specified in PEP-440."""
    package_version = Version(__version__)
    source_version = Version(PYPROJECT.get("tool", {}).get("poetry", {}).get("version"))
    assert package_version == source_version


def test_python_version():
    """Ensure the python version used to test is a supported version."""
    supported_minor_versions = (7, 8, 9, 10)
    python_version = sys.version_info
    assert python_version.major == 3, "Only Python 3 is supported"
    assert python_version.minor in supported_minor_versions, "Attempting to run unsupported Python version"


def test_author_email_metadata():
    """Ensure the project and package metadata for author and email match and are correct."""
    assert __author__ == "Phylum, Inc.", "The company name should be used instead of individual developers"
    assert __email__ == "<EMAIL>", "The engineering group email account should be used"
    # Package authors in Poetry are specified as a list of "name <email>" entries
    expected_poetry_author = f"{__author__} <{__email__}>"
    poetry_authors = PYPROJECT.get("tool", {}).get("poetry", {}).get("authors", [])
    assert expected_poetry_author in poetry_authors, "Package author/email should be defined in pyproject.toml only"
    assert len(poetry_authors) == 1, "There should only be one author - the company, with it's engineering group email"


def test_package_name():
    """Ensure the package name is traced through from the pyproject.toml definition."""
    expected_pkg_name = PYPROJECT.get("tool", {}).get("poetry", {}).get("name", "")
    assert expected_pkg_name == PKG_NAME, "The package name should be defined in pyproject.toml only"


def test_package_description():
    """Ensure the package description is traced through from the pyproject definition."""
    expected_pkg_desc = PYPROJECT.get("tool", {}).get("poetry", {}).get("description", "")
    assert expected_pkg_desc == PKG_SUMMARY, "The package description should be defined in pyproject.toml only"
