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| 1 <!DOCTYPE html> | |
| 2 <title>Encoding API: TextDecoder ignoreBOM option</title> | |
| 3 <script src="../../../resources/testharness.js"></script> | |
| 4 <script src="../../../resources/testharnessreport.js"></script> | |
| 5 <script> | |
| 6 | |
| 7 var cases = [ | |
| 8 {encoding: 'utf-8', bytes: [0xEF, 0xBB, 0xBF, 0x61, 0x62, 0x63]}, | |
| 9 {encoding: 'utf-16le', bytes: [0xFF, 0xFE, 0x61, 0x00, 0x62, 0x00, 0x63, 0x0
0]}, | |
| 10 {encoding: 'utf-16be', bytes: [0xFE, 0xFF, 0x00, 0x61, 0x00, 0x62, 0x00, 0x6
3]} | |
| 11 ]; | |
| 12 | |
| 13 cases.forEach(function(testCase) { | |
| 14 test(function() { | |
| 15 var BOM = '\uFEFF'; | |
| 16 var decoder = new TextDecoder(testCase.encoding, {ignoreBOM: true}); | |
| 17 var bytes = new Uint8Array(testCase.bytes); | |
| 18 assert_equals( | |
| 19 decoder.decode(bytes), | |
| 20 BOM + 'abc', | |
| 21 testCase.encoding + ': BOM should be present in decoded string if ig
nored'); | |
| 22 | |
| 23 decoder = new TextDecoder(testCase.encoding, {ignoreBOM: false}); | |
| 24 assert_equals( | |
| 25 decoder.decode(bytes), | |
| 26 'abc', | |
| 27 testCase.encoding + ': BOM should be absent from decoded string if n
ot ignored'); | |
| 28 | |
| 29 decoder = new TextDecoder(testCase.encoding); | |
| 30 assert_equals( | |
| 31 decoder.decode(bytes), | |
| 32 'abc', | |
| 33 testCase.encoding + ': BOM should be absent from decoded string by d
efault'); | |
| 34 }, 'BOM is ignored if ignoreBOM option is specified: ' + testCase.encoding); | |
| 35 }); | |
| 36 | |
| 37 test(function() { | |
| 38 assert_true('ignoreBOM' in new TextDecoder(), 'The ignoreBOM attribute shoul
d exist on TextDecoder.'); | |
| 39 assert_equals(typeof new TextDecoder().ignoreBOM, 'boolean', 'The type of t
he ignoreBOM attribute should be boolean.'); | |
| 40 assert_false(new TextDecoder().ignoreBOM, 'The ignoreBOM attribute should de
fault to false.'); | |
| 41 assert_true(new TextDecoder('utf-8', {ignoreBOM: true}).ignoreBOM, 'The igno
reBOM attribute can be set using an option.'); | |
| 42 | |
| 43 }, 'The ignoreBOM attribute of TextDecoder'); | |
| 44 | |
| 45 </script> | |
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