decompression-empty-input.tentative.any.js

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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');