from cpl.core.utils.number import Number


def test_is_number():
    assert Number.is_number(10) is True
    assert Number.is_number(3.14) is True
    assert Number.is_number("42") is True
    assert Number.is_number("3.14") is True
    assert Number.is_number("-10") is True
    assert Number.is_number("+5.5") is True
    assert Number.is_number("abc") is False
    assert Number.is_number("") is False
    assert Number.is_number(None) is False
    assert Number.is_number(True) is False


def test_to_number():
    assert Number.to_number("42") == 42
    assert Number.to_number("3.14") == 3.14
    assert Number.to_number(10) == 10
    assert Number.to_number(3.14) == 3.14
    assert Number.to_number("-7") == -7
    assert Number.to_number("+8.2") == 8.2

    # Optional: define how errors behave
    try:
        Number.to_number("abc")
    except ValueError:
        pass
    else:
        assert False, "Expected ValueError for non-numeric input"

    try:
        Number.to_number(None)
    except (TypeError, ValueError):
        pass
    else:
        assert False, "Expected exception for None input"