mozilla-central/testing/web-platform/mozilla/tests/compression/zstd/decompression-buffersource.tentative.any.js (file symbol)

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// META: global=window,worker
"use strict";
// The zstd-compressed bytes for the string "expected output!!!!".
// Note that four exclamation points are added to make the compressed data a multiple of 8 bytes,
// which is a requirement to test with Float64Array.
const compressedZstdBytes = [
0x28, 0xb5, 0x2f, 0xfd, 0x04, 0x58, 0x99, 0x00, 0x00, 0x65, 0x78, 0x70, 0x65,
0x63, 0x74, 0x65, 0x64, 0x20, 0x6f, 0x75, 0x74, 0x70, 0x75, 0x74, 0x21, 0x21,
0x21, 0x21, 0x2e, 0x4f, 0xe5, 0x2b,
];
const bufferSourceChunksForZstd = [
{
name: "ArrayBuffer",
value: new Uint8Array(compressedZstdBytes).buffer,
},
{
name: "Int8Array",
value: new Int8Array(new Uint8Array(compressedZstdBytes).buffer),
},
{
name: "Uint8Array",
value: new Uint8Array(compressedZstdBytes),
},
{
name: "Uint8ClampedArray",
value: new Uint8ClampedArray(new Uint8Array(compressedZstdBytes).buffer),
},
{
name: "Int16Array",
value: new Int16Array(new Uint8Array(compressedZstdBytes).buffer),
},
{
name: "Uint16Array",
value: new Uint16Array(new Uint8Array(compressedZstdBytes).buffer),
},
{
name: "Int32Array",
value: new Int32Array(new Uint8Array(compressedZstdBytes).buffer),
},
{
name: "Uint32Array",
value: new Uint32Array(new Uint8Array(compressedZstdBytes).buffer),
},
{
name: "Float16Array",
value: new Float16Array(new Uint8Array(compressedZstdBytes).buffer),
},
{
name: "Float32Array",
value: new Float32Array(new Uint8Array(compressedZstdBytes).buffer),
},
{
name: "Float64Array",
value: new Float64Array(new Uint8Array(compressedZstdBytes).buffer),
},
{
name: "DataView",
value: new DataView(new Uint8Array(compressedZstdBytes).buffer),
},
];
for (const chunk of bufferSourceChunksForZstd) {
promise_test(async t => {
const ds = new DecompressionStream("zstd");
const writer = ds.writable.getWriter();
const reader = ds.readable.getReader();
const writePromise = writer.write(chunk.value);
const writerClosePromise = writer.close();
const { value, done } = await reader.read();
assert_false(done, "Stream should not be done after reading valid data");
await writePromise;
await writerClosePromise;
const decompressedText = new TextDecoder().decode(value);
assert_equals(
decompressedText,
"expected output!!!!",
`The decompressed text should match the expected text when reading from ${chunk.name}`
);
}, `chunk of type ${chunk.name} should work for zstd decompression`);
}