| <!DOCTYPE html> |
| <title>Encoding API: TextDecoder ignoreBOM option</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script> |
| |
| var cases = [ |
| {encoding: 'utf-8', bytes: [0xEF, 0xBB, 0xBF, 0x61, 0x62, 0x63]}, |
| {encoding: 'utf-16le', bytes: [0xFF, 0xFE, 0x61, 0x00, 0x62, 0x00, 0x63, 0x00]}, |
| {encoding: 'utf-16be', bytes: [0xFE, 0xFF, 0x00, 0x61, 0x00, 0x62, 0x00, 0x63]} |
| ]; |
| |
| cases.forEach(function(testCase) { |
| test(function() { |
| var BOM = '\uFEFF'; |
| var decoder = new TextDecoder(testCase.encoding, {ignoreBOM: true}); |
| var bytes = new Uint8Array(testCase.bytes); |
| assert_equals( |
| decoder.decode(bytes), |
| BOM + 'abc', |
| testCase.encoding + ': BOM should be present in decoded string if ignored'); |
| |
| decoder = new TextDecoder(testCase.encoding, {ignoreBOM: false}); |
| assert_equals( |
| decoder.decode(bytes), |
| 'abc', |
| testCase.encoding + ': BOM should be absent from decoded string if not ignored'); |
| |
| decoder = new TextDecoder(testCase.encoding); |
| assert_equals( |
| decoder.decode(bytes), |
| 'abc', |
| testCase.encoding + ': BOM should be absent from decoded string by default'); |
| }, 'BOM is ignored if ignoreBOM option is specified: ' + testCase.encoding); |
| }); |
| |
| test(function() { |
| assert_true('ignoreBOM' in new TextDecoder(), 'The ignoreBOM attribute should exist on TextDecoder.'); |
| assert_equals(typeof new TextDecoder().ignoreBOM, 'boolean', 'The type of the ignoreBOM attribute should be boolean.'); |
| assert_false(new TextDecoder().ignoreBOM, 'The ignoreBOM attribute should default to false.'); |
| assert_true(new TextDecoder('utf-8', {ignoreBOM: true}).ignoreBOM, 'The ignoreBOM attribute can be set using an option.'); |
| |
| }, 'The ignoreBOM attribute of TextDecoder'); |
| |
| </script> |
