| // META: global=window,worker |
| |
| 'use strict'; |
| |
| // Verify that constructor arguments are correctly reflected in the attributes. |
| |
| // Mapping of the first argument to TextDecoderStream to the expected value of |
| // the encoding attribute. We assume that if this subset works correctly, the |
| // rest probably work too. |
| const labelToName = { |
| 'unicode-1-1-utf-8': 'utf-8', |
| 'iso-8859-2': 'iso-8859-2', |
| 'ascii': 'windows-1252', |
| 'utf-16': 'utf-16le' |
| }; |
| |
| for (const label of Object.keys(labelToName)) { |
| test(() => { |
| const stream = new TextDecoderStream(label); |
| assert_equals(stream.encoding, labelToName[label], 'encoding should match'); |
| }, `encoding attribute should have correct value for '${label}'`); |
| } |
| |
| for (const falseValue of [false, 0, '', undefined, null]) { |
| test(() => { |
| const stream = new TextDecoderStream('utf-8', { fatal: falseValue }); |
| assert_false(stream.fatal, 'fatal should be false'); |
| }, `setting fatal to '${falseValue}' should set the attribute to false`); |
| |
| test(() => { |
| const stream = new TextDecoderStream('utf-8', { ignoreBOM: falseValue }); |
| assert_false(stream.ignoreBOM, 'ignoreBOM should be false'); |
| }, `setting ignoreBOM to '${falseValue}' should set the attribute to false`); |
| } |
| |
| for (const trueValue of [true, 1, {}, [], 'yes']) { |
| test(() => { |
| const stream = new TextDecoderStream('utf-8', { fatal: trueValue }); |
| assert_true(stream.fatal, 'fatal should be true'); |
| }, `setting fatal to '${trueValue}' should set the attribute to true`); |
| |
| test(() => { |
| const stream = new TextDecoderStream('utf-8', { ignoreBOM: trueValue }); |
| assert_true(stream.ignoreBOM, 'ignoreBOM should be true'); |
| }, `setting ignoreBOM to '${trueValue}' should set the attribute to true`); |
| } |
| |
| test(() => { |
| assert_throws_js(RangeError, () => new TextDecoderStream(''), |
| 'the constructor should throw'); |
| }, 'constructing with an invalid encoding should throw'); |
| |
| test(() => { |
| assert_throws_js(TypeError, () => new TextDecoderStream({ |
| toString() { return {}; } |
| }), 'the constructor should throw'); |
| }, 'constructing with a non-stringifiable encoding should throw'); |
| |
| test(() => { |
| assert_throws_js(Error, |
| () => new TextDecoderStream('utf-8', { |
| get fatal() { throw new Error(); } |
| }), 'the constructor should throw'); |
| }, 'a throwing fatal member should cause the constructor to throw'); |
| |
| test(() => { |
| assert_throws_js(Error, |
| () => new TextDecoderStream('utf-8', { |
| get ignoreBOM() { throw new Error(); } |
| }), 'the constructor should throw'); |
| }, 'a throwing ignoreBOM member should cause the constructor to throw'); |