f16BEBOMSheet from './resources/bom-utf-16be.css' assert { type: 'css' };
    test(function() {
        assert_equals(utf16BEBOMSheet.rules[0].selectorText, '\ufffd\ufffd\ufffdd\ufffdi\ufffdv\ufffd \ufffd', 'Expected UTF-8 decoded selectorText with 0xfffd replacement characters');
    }, 'UTF-16BE BOM should be ignored, so CSS module should be UTF-8 decoded');

    import utf16LEBOMSheet from './resources/bom-utf-16le.css' assert { type: 'css' };
    test(function() {
        assert_equals(utf16LEBOMSheet.r