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// META: global=window,worker,shadowrealm
'use strict';
const gzipEmptyValue = new Uint8Array([31, 139, 8, 0, 0, 0, 0, 0, 0, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
const deflateEmptyValue = new Uint8Array([120, 156, 3, 0, 0, 0, 0, 1]);
const deflateRawEmptyValue = new Uint8Array([1, 0, 0, 255, 255]);
promise_test(async t => {
const ds = new DecompressionStream('gzip');
const reader = ds.readable.getReader();
const writer = ds.writable.getWriter();
const writePromise = writer.write(gzipEmptyValue);
writer.close();
const { value, done } = await reader.read();
assert_true(done, "read() should set done");
assert_equals(value, undefined, "value should be undefined");
await writePromise;
}, 'decompressing gzip empty input should work');
promise_test(async t => {
const ds = new DecompressionStream('deflate');
const reader = ds.readable.getReader();
const writer = ds.writable.getWriter();
const writePromise = writer.write(deflateEmptyValue);
writer.close();
const { value, done } = await reader.read();
assert_true(done, "read() should set done");
assert_equals(value, undefined, "value should be undefined");
await writePromise;
}, 'decompressing deflate empty input should work');
promise_test(async t => {
const ds = new DecompressionStream('deflate-raw');
const reader = ds.readable.getReader();
const writer = ds.writable.getWriter();
const writePromise = writer.write(deflateRawEmptyValue);
writer.close();
const { value, done } = await reader.read();
assert_true(done, "read() should set done");
assert_equals(value, undefined, "value should be undefined");
await writePromise;
}, 'decompressing deflate-raw empty input should work');
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