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LibWeb: Add some compression WPT tests

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devgianlu 2025-03-01 18:03:36 +01:00 • committed by Jelle Raaijmakers
commit 1c836588d9
Notes: github-actions[bot] 2025-03-19 12:49:07 +00:00
14 changed files with 457 additions and 0 deletions
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Tests/LibWeb/Text/input/wpt-import/compression/compression-large-flush-output.any.js Normal file
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// META: global=window,worker,shadowrealm
// META: script=third_party/pako/pako_inflate.min.js
// META: script=resources/concatenate-stream.js
// META: timeout=long
'use strict';
// This test verifies that a large flush output will not truncate the
// final results.
async function compressData(chunk, format) {
const cs = new CompressionStream(format);
const writer = cs.writable.getWriter();
writer.write(chunk);
writer.close();
return await concatenateStream(cs.readable);
}
// JSON-encoded array of 10 thousands numbers ("[0,1,2,...]"). This produces 48_891 bytes of data.
const fullData = new TextEncoder().encode(JSON.stringify(Array.from({ length: 10_000 }, (_, i) => i)));
const data = fullData.subarray(0, 35_579);
const expectedValue = data;
promise_test(async t => {
const compressedData = await compressData(data, 'deflate');
// decompress with pako, and check that we got the same result as our original string
assert_array_equals(expectedValue, pako.inflate(compressedData), 'value should match');
}, `deflate compression with large flush output`);
promise_test(async t => {
const compressedData = await compressData(data, 'gzip');
// decompress with pako, and check that we got the same result as our original string
assert_array_equals(expectedValue, pako.inflate(compressedData), 'value should match');
}, `gzip compression with large flush output`);
promise_test(async t => {
const compressedData = await compressData(data, 'deflate-raw');
// decompress with pako, and check that we got the same result as our original string
assert_array_equals(expectedValue, pako.inflateRaw(compressedData), 'value should match');
}, `deflate-raw compression with large flush output`);