from planetarytime import Body


def test_mars_hours_per_sol() -> None:
    assert Body.MARS.hours_per_sol == 25


def test_jupiter_hours_per_sol() -> None:
    assert Body.JUPITER.hours_per_sol == 10


def test_hours_per_sol_equals_rounded_rotation() -> None:
    for body in Body:
        assert body.hours_per_sol == round(body.rotation_hours)


def test_all_bodies_have_positive_rotation() -> None:
    for body in Body:
        assert body.rotation_hours > 0


def test_mars_sols_per_year() -> None:
    assert Body.MARS.sols_per_year == 670


def test_all_bodies_have_positive_sols_per_year() -> None:
    for body in Body:
        assert body.sols_per_year > 0


def test_sols_per_year_derived_from_orbital_and_rotation() -> None:
    for body in Body:
        assert body.sols_per_year == round(body.orbital_hours / body.rotation_hours)