from pathlib import Path


ROOT = Path(__file__).resolve().parents[1]


def _strip_inline_comment(line: str) -> str:
    return line.split("#", 1)[0].strip()


def test_requirements_have_version_specifiers():
    unpinned = []
    for raw_line in (ROOT / "requirements.txt").read_text(encoding="utf-8").splitlines():
        line = _strip_inline_comment(raw_line)
        if not line:
            continue
        if line.startswith(("-", "--")):
            continue
        if "@" in line:
            continue
        if not any(op in line for op in ("==", ">=", "<=", "~=", "!=", ">")):
            unpinned.append(line)

    assert unpinned == []