"""Test the `parse_weight`  and `dimensional_weight`"""

from helpers.weight import parse_weight, dimensional_weight


def test_parse_weight_none():
    """Test None value"""
    assert parse_weight(None) is None


def test_parse_weight():
    """Test one value from the sample file"""
    assert parse_weight("0.65 pounds") == 294.83


def test_parse_weight_only_decimals():
    """Test a value with only decimals specified"""
    assert parse_weight(".28 pounds") == 127.01


def test_parse_weight_no_decimals():
    """Test a value without decimals"""
    assert parse_weight("44 pounds") == 19958.05


def test_parse_weight_ounces():
    """Test a value with ounces"""
    assert parse_weight("0.65 ounces") == 18.43


def test_parse_weight_unrecognized():
    """Test a value where the unit is not recognized"""
    assert parse_weight("0.65 mg") is None


def test_dimensional_weight():
    """Test the dimensional weight calculation"""
    assert dimensional_weight(height=1, width=2, depth=3) == 1.2


def test_dimensional_weight_none():
    """Test the dimensional weight calculation where there may be nones in the
    input"""

    assert dimensional_weight(height=None, width=2, depth=3) is None
    assert dimensional_weight(height=1, width=None, depth=3) is None
    assert dimensional_weight(height=1, width=2, depth=None) is None

    assert dimensional_weight(height=None, width=None, depth=3) is None
    assert dimensional_weight(height=1, width=None, depth=None) is None
    assert dimensional_weight(height=None, width=2, depth=None) is None

    assert dimensional_weight(height=None, width=None, depth=None) is None