ladybird/Tests/LibWeb/Text/input/Compression/DecompressionStream.html

<script src="../include.js"></script>
<script>
    asyncTest(async done => {
        const data = [
            // FIXME: Enable this case when our DecompressionStream is functioning with the zlib format.
            // { format: "deflate", text: "eJwLT83JUchIzcnJV0grykzNSylWBABGEQb1" },
            { format: "deflate-raw", text: "C0/NyVHISM3JyVdIK8pMzUspVgQA" },
            { format: "gzip", text: "H4sIAAAAAAADAwtPzclRyEjNyclXSCvKTM1LKVYEAHN0w4sTAAAA" },
        ];

        for (const test of data) {
            const text = Uint8Array.fromBase64(test.text);
            let stream = new Blob([text]).stream();

            let decompressor = stream.pipeThrough(new DecompressionStream(test.format));
            let reader = decompressor.getReader();

            let buffer = new ArrayBuffer(256);
            let offset = 0;

            while (true) {
                let result = await reader.read();
                if (result.done) {
                    break;
                }

                new Uint8Array(buffer).set(result.value, offset);
                offset += result.value.byteLength;
            }

            let result = String.fromCharCode.apply(null, new Uint8Array(buffer, 0, offset));
            println(`format=${test.format}: ${result}`);
        }

        done();
    });
</script>