Files
ladybird/Tests/LibWeb/Text/input/wpt-import/streams/piping/general-addition.any.js

16 lines
531 B
JavaScript

// META: global=window,worker,shadowrealm
'use strict';
promise_test(async t => {
/** @type {ReadableStreamDefaultController} */
var con;
let synchronous = false;
new ReadableStream({ start(c) { con = c }}, { highWaterMark: 0 }).pipeTo(
new WritableStream({ write() { synchronous = true; } })
)
// wait until start algorithm finishes
await Promise.resolve();
con.enqueue();
assert_false(synchronous, 'write algorithm must not run synchronously');
}, "enqueue() must not synchronously call write algorithm");