forked from mirrors/gecko-dev
a97cd0a050
Automatic update from web-platform-tests Enable shadowrealm testing for encoding api Starting with tests that don't have additional dependencies. -- wpt-commits: 7c9f8674d9809731e8919073d957d6233f6e0544 wpt-pr: 41968
52 lines
2.3 KiB
JavaScript
52 lines
2.3 KiB
JavaScript
// META: global=window,dedicatedworker,shadowrealm
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// META: title=Encoding API: TextDecoder ignoreBOM option
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var cases = [
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{encoding: 'utf-8', bytes: [0xEF, 0xBB, 0xBF, 0x61, 0x62, 0x63]},
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{encoding: 'utf-16le', bytes: [0xFF, 0xFE, 0x61, 0x00, 0x62, 0x00, 0x63, 0x00]},
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{encoding: 'utf-16be', bytes: [0xFE, 0xFF, 0x00, 0x61, 0x00, 0x62, 0x00, 0x63]}
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];
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cases.forEach(function(testCase) {
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test(function() {
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var BOM = '\uFEFF';
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var decoder = new TextDecoder(testCase.encoding, {ignoreBOM: true});
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var bytes = new Uint8Array(testCase.bytes);
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assert_equals(
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decoder.decode(bytes),
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BOM + 'abc',
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testCase.encoding + ': BOM should be present in decoded string if ignored');
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assert_equals(
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decoder.decode(bytes),
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BOM + 'abc',
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testCase.encoding + ': BOM should be present in decoded string if ignored by a reused decoder');
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decoder = new TextDecoder(testCase.encoding, {ignoreBOM: false});
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assert_equals(
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decoder.decode(bytes),
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'abc',
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testCase.encoding + ': BOM should be absent from decoded string if not ignored');
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assert_equals(
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decoder.decode(bytes),
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'abc',
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testCase.encoding + ': BOM should be absent from decoded string if not ignored by a reused decoder');
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decoder = new TextDecoder(testCase.encoding);
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assert_equals(
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decoder.decode(bytes),
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'abc',
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testCase.encoding + ': BOM should be absent from decoded string by default');
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assert_equals(
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decoder.decode(bytes),
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'abc',
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testCase.encoding + ': BOM should be absent from decoded string by default with a reused decoder');
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}, 'BOM is ignored if ignoreBOM option is specified: ' + testCase.encoding);
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});
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test(function() {
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assert_true('ignoreBOM' in new TextDecoder(), 'The ignoreBOM attribute should exist on TextDecoder.');
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assert_equals(typeof new TextDecoder().ignoreBOM, 'boolean', 'The type of the ignoreBOM attribute should be boolean.');
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assert_false(new TextDecoder().ignoreBOM, 'The ignoreBOM attribute should default to false.');
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assert_true(new TextDecoder('utf-8', {ignoreBOM: true}).ignoreBOM, 'The ignoreBOM attribute can be set using an option.');
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}, 'The ignoreBOM attribute of TextDecoder');
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