from epc_data.attributes.attribute_utils import extract_thermal_transmittance, clean_description


def test_extract_thermal_transmittance():
    description = "average thermal transmittance 2.3 w/m-¦k"
    assert extract_thermal_transmittance({}, description) == (
        {'thermal_transmittance': 2.3, 'thermal_transmittance_unit': 'w/m-¦k'}, '')


def test_clean_description():
    test_cases = [
        ("this:is;a*test", "this is a test"),
        ("hello@world", "hello world"),
        ("what?!?", "what   "),
        ("hello(world)", "hello world "),
        ("", ""),
        (":;*@?!", "      "),
        ("no special chars", "no special chars")
    ]

    for input_str, expected_output in test_cases:
        assert clean_description(input_str) == expected_output