Anne van Kesteren
47a27e9af8
Automatic update from web-platform-tests Remove ShadowRealm test coverage This intentionally does not make infrastructure or documentation changes, but without implementer support all the ShadowRealm tests add significant noise. Once there is implementer support this can be reverted. -- wpt-commits: e4a4672e9e607fc2b28e7173b83ce4e38ef53071 wpt-pr: 59794
59 lines
1.9 KiB
JavaScript
59 lines
1.9 KiB
JavaScript
// META: global=window,worker
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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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// This test asserts that compressing multiple chunks should work.
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// Example: ('Hello', 3) => TextEncoder().encode('HelloHelloHello')
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function makeExpectedChunk(input, numberOfChunks) {
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const expectedChunk = input.repeat(numberOfChunks);
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return new TextEncoder().encode(expectedChunk);
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}
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// Example: ('Hello', 3, 'deflate') => compress ['Hello', 'Hello', Hello']
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async function compressMultipleChunks(input, numberOfChunks, format) {
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const cs = new CompressionStream(format);
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const writer = cs.writable.getWriter();
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const chunk = new TextEncoder().encode(input);
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for (let i = 0; i < numberOfChunks; ++i) {
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writer.write(chunk);
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}
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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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const hello = 'Hello';
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for (const format of formats) {
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for (let numberOfChunks = 2; numberOfChunks <= 16; ++numberOfChunks) {
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promise_test(async t => {
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const compressedData = await compressMultipleChunks(hello, numberOfChunks, format);
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const decompressedData = await decompressDataOrPako(compressedData, format);
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const expectedValue = makeExpectedChunk(hello, numberOfChunks);
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// check that we got the same result as our original string
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assert_array_equals(decompressedData, expectedValue, 'value should match');
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}, `compressing ${numberOfChunks} chunks with ${format} should work`);
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}
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}
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