1// META: title=Encoding API: UTF-16 surrogate handling 2 3var bad = [ 4 { 5 encoding: 'utf-16le', 6 input: [0x00, 0xd8], 7 expected: '\uFFFD', 8 name: 'lone surrogate lead' 9 }, 10 { 11 encoding: 'utf-16le', 12 input: [0x00, 0xdc], 13 expected: '\uFFFD', 14 name: 'lone surrogate trail' 15 }, 16 { 17 encoding: 'utf-16le', 18 input: [0x00, 0xd8, 0x00, 0x00], 19 expected: '\uFFFD\u0000', 20 name: 'unmatched surrogate lead' 21 }, 22 { 23 encoding: 'utf-16le', 24 input: [0x00, 0xdc, 0x00, 0x00], 25 expected: '\uFFFD\u0000', 26 name: 'unmatched surrogate trail' 27 }, 28 { 29 encoding: 'utf-16le', 30 input: [0x00, 0xdc, 0x00, 0xd8], 31 expected: '\uFFFD\uFFFD', 32 name: 'swapped surrogate pair' 33 } 34]; 35 36bad.forEach(function(t) { 37 test(function() { 38 assert_equals(new TextDecoder(t.encoding).decode(new Uint8Array(t.input)), t.expected); 39 }, t.encoding + ' - ' + t.name); 40 test(function() { 41 assert_throws(new TypeError(), function() { 42 new TextDecoder(t.encoding, {fatal: true}).decode(new Uint8Array(t.input)) 43 }); 44 }, t.encoding + ' - ' + t.name + ' (fatal flag set)'); 45}); 46