7feff3a715
PR-URL: https://github.com/nodejs/node/pull/62107 Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Mattias Buelens <mattias@buelens.com> Reviewed-By: René <contact.9a5d6388@renegade334.me.uk>
59 lines
1.9 KiB
JavaScript
59 lines
1.9 KiB
JavaScript
// META: global=window,worker,shadowrealm
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// META: script=third_party/pako/pako_inflate.min.js
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// META: script=resources/decompress.js
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// META: script=resources/formats.js
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// META: timeout=long
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'use strict';
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const SMALL_FILE = "/media/foo.vtt";
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const LARGE_FILE = "/media/test-av-384k-44100Hz-1ch-320x240-30fps-10kfr.webm";
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let dataPromiseList = [
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["empty data", Promise.resolve(new Uint8Array(0))],
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["small amount data", fetch(SMALL_FILE).then(response => response.bytes())],
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["large amount data", fetch(LARGE_FILE).then(response => response.bytes())],
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];
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async function compressArrayBuffer(input, format) {
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const cs = new CompressionStream(format);
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const writer = cs.writable.getWriter();
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writer.write(input);
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const closePromise = writer.close();
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const out = [];
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const reader = cs.readable.getReader();
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let totalSize = 0;
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while (true) {
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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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out.push(value);
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totalSize += value.byteLength;
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}
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await closePromise;
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const concatenated = new Uint8Array(totalSize);
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let offset = 0;
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for (const array of out) {
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concatenated.set(array, offset);
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offset += array.byteLength;
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}
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return concatenated;
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}
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test(() => {
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assert_throws_js(TypeError, () => {
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const transformer = new CompressionStream("nonvalid");
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}, "non supported format should throw");
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}, "CompressionStream constructor should throw on invalid format");
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for (const format of formats) {
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for (const [label, dataPromise] of dataPromiseList) {
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promise_test(async () => {
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const bufferView = await dataPromise;
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const compressedData = await compressArrayBuffer(bufferView, format);
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const decompressedData = await decompressDataOrPako(compressedData, format);
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// check that we got the same result as our original string
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assert_array_equals(decompressedData, bufferView, 'value should match');
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}, `${format} ${label} should be reinflated back to its origin`);
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}
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}
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