Case shouldn't matter when it comes to radio group names On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". Test 1 form.elements[0].name = 'r'; form.elements[1].name = 'r'; form.elements[2].name = 'R'; PASS form.elements[0].checked is false PASS form.elements[1].checked is false PASS form.elements[2].checked is true Test 2 form.elements[0].name = 'radio'; form.elements[1].name = 'rAdIO'; form.elements[2].name = 'RADIO'; PASS form.elements[0].checked is false PASS form.elements[1].checked is false PASS form.elements[2].checked is true Test 3 (LATIN SMALL LETTER N WITH TILDE / LATIN CAPITAL LETTER N WITH TILDE) form.elements[0].name = '\u00F1'; form.elements[1].name = '\u00F1'; form.elements[2].name = '\u00D1'; PASS form.elements[0].checked is false PASS form.elements[1].checked is false PASS form.elements[2].checked is true Test 4 (LATIN SMALL LETTER SHARP S / SS) form.elements[0].name = '\u00DF'; form.elements[1].name = '\u00DF'; form.elements[2].name = 'SS'; PASS form.elements[0].checked is false FAIL form.elements[1].checked should be false. Was true. PASS form.elements[2].checked is true Test 5 (DESERET SMALL LETTER LONG I / DESERET CAPITAL LETTER LONG I) form.elements[0].name = '\uD801\uDC28'; form.elements[1].name = '\uD801\uDC28'; form.elements[2].name = '\uD801\uDC00'; PASS form.elements[0].checked is false FAIL form.elements[1].checked should be false. Was true. PASS form.elements[2].checked is true Test 6 (GREEK SMALL LETTER FINAL SIGMA / GREEK SMALL LETTER SIGMA / GREEK CAPITAL LETTER SIGMA) form.elements[0].name = '\u03C2'; form.elements[1].name = '\u03C3'; form.elements[2].name = '\u03A3'; PASS form.elements[0].checked is false PASS form.elements[1].checked is false PASS form.elements[2].checked is true Test 7 (LATIN CAPITAL LETTER I WITH DOT ABOVE) form.elements[0].name = '\u0130'; form.elements[1].name = '\u0069'; form.elements[2].name = '\u0130'; PASS form.elements[0].checked is false FAIL form.elements[1].checked should be false. Was true. PASS form.elements[2].checked is true Test 8 (LATIN SMALL LETTER DOTLESS I) form.elements[0].name = '\u0131'; form.elements[1].name = '\u0049'; form.elements[2].name = '\u0131'; PASS form.elements[0].checked is false FAIL form.elements[1].checked should be false. Was true. PASS form.elements[2].checked is true PASS successfullyParsed is true TEST COMPLETE