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4078f670b8
Automatic update from web-platform-tests TextDecoderStream: Permit detached buffers Since https://github.com/heycam/webidl/pull/605 converting a chunk to a BufferSource no longer throws if the chunk is detached. Update the TextDecoderStream implementation and tests to match the new behaviour. Change-Id: I26230d9cbfce871b3dae75e612539564d4578977 Reviewed-on: https://chromium-review.googlesource.com/c/1404906 Reviewed-by: Joshua Bell <jsbell@chromium.org> Commit-Queue: Adam Rice <ricea@chromium.org> Cr-Commit-Position: refs/heads/master@{#621897} -- wpt-commits: 35d1ca9cb52f755566ba6681fe555626379b9e2c wpt-pr: 14794
61 lines
2.7 KiB
JavaScript
61 lines
2.7 KiB
JavaScript
// META: global=worker
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// META: script=resources/readable-stream-from-array.js
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// META: script=resources/readable-stream-to-array.js
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'use strict';
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const emptyChunk = new Uint8Array([]);
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const inputChunk = new Uint8Array([73, 32, 240, 159, 146, 153, 32, 115, 116,
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114, 101, 97, 109, 115]);
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const expectedOutputString = 'I \u{1F499} streams';
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promise_test(async () => {
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const input = readableStreamFromArray([inputChunk]);
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const output = input.pipeThrough(new TextDecoderStream());
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const array = await readableStreamToArray(output);
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assert_array_equals(array, [expectedOutputString],
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'the output should be in one chunk');
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}, 'decoding one UTF-8 chunk should give one output string');
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promise_test(async () => {
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const input = readableStreamFromArray([emptyChunk]);
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const output = input.pipeThrough(new TextDecoderStream());
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const array = await readableStreamToArray(output);
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assert_array_equals(array, [], 'no chunks should be output');
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}, 'decoding an empty chunk should give no output chunks');
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promise_test(async () => {
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const input = readableStreamFromArray([emptyChunk, inputChunk]);
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const output = input.pipeThrough(new TextDecoderStream());
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const array = await readableStreamToArray(output);
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assert_array_equals(array, [expectedOutputString],
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'the output should be in one chunk');
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}, 'an initial empty chunk should be ignored');
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promise_test(async () => {
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const input = readableStreamFromArray([inputChunk, emptyChunk]);
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const output = input.pipeThrough(new TextDecoderStream());
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const array = await readableStreamToArray(output);
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assert_array_equals(array, [expectedOutputString],
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'the output should be in one chunk');
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}, 'a trailing empty chunk should be ignored');
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promise_test(async () => {
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const buffer = new ArrayBuffer(3);
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const view = new Uint8Array(buffer, 1, 1);
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view[0] = 65;
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new MessageChannel().port1.postMessage(buffer, [buffer]);
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const input = readableStreamFromArray([view]);
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const output = input.pipeThrough(new TextDecoderStream());
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const array = await readableStreamToArray(output);
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assert_array_equals(array, [], 'no chunks should be output');
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}, 'decoding a transferred Uint8Array chunk should give no output');
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promise_test(async () => {
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const buffer = new ArrayBuffer(1);
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new MessageChannel().port1.postMessage(buffer, [buffer]);
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const input = readableStreamFromArray([buffer]);
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const output = input.pipeThrough(new TextDecoderStream());
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const array = await readableStreamToArray(output);
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assert_array_equals(array, [], 'no chunks should be output');
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}, 'decoding a transferred ArrayBuffer chunk should give no output');
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