55 lines
2.2 KiB
HTML
55 lines
2.2 KiB
HTML
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<!DOCTYPE html>
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<script src="../include.js"></script>
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<script>
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function describe(string) {
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const codePoints = Array.from(string, codePoint => codePoint.codePointAt(0).toString(16));
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return `[${string.length}, ${codePoints.join(", ")}]`;
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}
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async function decodeChunks(chunks) {
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const readable = new ReadableStream({
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start(controller) {
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for (const chunk of chunks)
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controller.enqueue(new Uint8Array(chunk));
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controller.close();
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},
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});
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const reader = readable.pipeThrough(new TextDecoderStream("utf-8")).getReader();
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const decoded = [];
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for (;;) {
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const { value, done } = await reader.read();
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if (done)
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break;
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decoded.push(describe(value));
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}
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return decoded;
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}
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promiseTest(async () => {
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const cases = [
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["invalid_second_byte_e0_80", [[0xe0, 0x80]]],
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["invalid_second_byte_f4_90", [[0xf4, 0x90]]],
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["split_valid_2_byte", [[0xc3], [0xa9]]],
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["split_valid_3_byte", [[0xe0, 0xa0], [0x80]]],
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["split_valid_4_byte", [[0xf0, 0x90, 0x80], [0x80]]],
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["eof_incomplete_2_byte", [[0xc3]]],
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["eof_incomplete_3_byte", [[0xe0, 0xa0]]],
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["eof_incomplete_4_byte", [[0xf0, 0x90, 0x80]]],
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["ascii_prefix_then_eof_incomplete_3_byte", [[0x78, 0xe0, 0xa0]]],
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["incomplete_prefix_then_ascii", [[0xe0, 0xa0], [0x78]]],
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["complete_sequence_with_extra_continuation", [[0xc3, 0xa9, 0x80]]],
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["surrogate_sequence", [[0xed, 0xa0, 0x80]]],
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["invalid_lead_f5_with_continuations", [[0xf5, 0x80, 0x80, 0x80]]],
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["overlong_c0_with_continuations", [[0xc0, 0x80, 0x80]]],
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["continuation_only_tail", [[0x80, 0x80, 0x80, 0x80]]],
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["invalid_lead_then_ascii", [[0xf5, 0x78]]],
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["invalid_lead_with_continuations_then_ascii", [[0xf5, 0x80, 0x80, 0x80, 0x78]]],
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];
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for (const [name, chunks] of cases)
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println(`${name}: ${(await decodeChunks(chunks)).join(" | ")}`);
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});
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</script>
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