from pathlib import Path

from cibuildwheel.util import DependencyConstraints


def test_defaults():
    dependency_constraints = DependencyConstraints.with_defaults()

    project_root = Path(__file__).parents[1]
    resources_dir = project_root / "cibuildwheel" / "resources"

    assert dependency_constraints.base_file_path.samefile(resources_dir / "constraints.txt")
    assert dependency_constraints.get_for_python_version("3.99").samefile(
        resources_dir / "constraints.txt"
    )
    assert dependency_constraints.get_for_python_version("3.9").samefile(
        resources_dir / "constraints-python39.txt"
    )
    assert dependency_constraints.get_for_python_version("3.6").samefile(
        resources_dir / "constraints-python36.txt"
    )