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Test Info:

// META: global=window,worker
// META: script=/common/gc.js
'use strict';
// See https://crbug.com/390646657 for details.
promise_test(async () => {
const written = new WritableStream({
write(chunk) {
return new Promise(resolve => {});
}
}).getWriter().write('just nod if you can hear me');
for (let i = 0; i < 5; ++i)
await garbageCollect();
}, 'Garbage-collecting a stream writer with a pending write should not crash');
promise_test(async () => {
const closed = new WritableStream({
write(chunk) { }
}).getWriter().closed;
for (let i = 0; i < 5; ++i)
await garbageCollect();
}, 'Garbage-collecting a stream writer should not crash with closed promise is retained');
promise_test(async () => {
let writer = new WritableStream({
write(chunk) { return new Promise(resolve => {}); },
close() { return new Promise(resolve => {}); }
}).getWriter();
writer.write('is there anyone home?');
writer.close();
writer = null;
for (let i = 0; i < 5; ++i)
await garbageCollect();
}, 'Garbage-collecting a stream writer should not crash with close promise pending');
promise_test(async () => {
const ready = new WritableStream({
write(chunk) { }
}, {highWaterMark: 0}).getWriter().ready;
for (let i = 0; i < 5; ++i)
await garbageCollect();
}, 'Garbage-collecting a stream writer should not crash when backpressure is being applied');