from app.validation import normalize_status, validate_todo_fields

def test_normalize_status_accepts_allowed():
    assert normalize_status("done") == "done"
    assert normalize_status("in-progress") == "in-progress"

def test_normalize_status_defaults_on_invalid():
    assert normalize_status("weird") == "not-started"
    assert normalize_status("") == "not-started"
    assert normalize_status(None) == "not-started"

def test_validate_todo_fields_ok():
    ok, errors = validate_todo_fields("A", "B")
    assert ok is True
    assert errors == []

def test_validate_todo_fields_missing_both():
    ok, errors = validate_todo_fields("", "")
    assert ok is False
    assert "title_required" in errors
    assert "description_required" in errors