c) {
    test_specified_serialization('opacity', t, s);
    test_specified_serialization('transform', `scale(${t})`, `scale(calc(${c}))`);
    test_computed_serialization('opacity', t, c);
    test_computed_serialization('transform', `scale(${t})`, `matrix(${c}, 0, 0, ${c}, 0, 0)`);
}

test_serialization(
    'pow(1,1)',
    'calc(1)',
    '1');
test_serialization(
    'hypot(1)',
    'calc(1)',
    '1');
test_serialization(
    'sqrt(1)',
    'calc(1)',
    '1');

test_serialization(
    'calc(pow(1,1) - 0