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// META: global=window,worker,jsshell
// META: script=../resources/test-utils.js
'use strict';
promise_test(() => {
let controller;
new ReadableStream({
start(c) {
controller = c;
}
});
garbageCollect();
return delay(50).then(() => {
controller.close();
assert_throws_js(TypeError, () => controller.close(), 'close should throw a TypeError the second time');
controller.error();
});
}, 'ReadableStreamController methods should continue working properly when scripts lose their reference to the ' +
'readable stream');
promise_test(() => {
let controller;
const closedPromise = new ReadableStream({
start(c) {
controller = c;
}
}).getReader().closed;
garbageCollect();
return delay(50).then(() => controller.close()).then(() => closedPromise);
}, 'ReadableStream closed promise should fulfill even if the stream and reader JS references are lost');
promise_test(t => {
const theError = new Error('boo');
let controller;
const closedPromise = new ReadableStream({
start(c) {
controller = c;
}
}).getReader().closed;
garbageCollect();
return delay(50).then(() => controller.error(theError))
.then(() => promise_rejects_exactly(t, theError, closedPromise));
}, 'ReadableStream closed promise should reject even if stream and reader JS references are lost');
promise_test(() => {
const rs = new ReadableStream({});
rs.getReader();
garbageCollect();
return delay(50).then(() => assert_throws_js(TypeError, () => rs.getReader(),
'old reader should still be locking the stream even after garbage collection'));
}, 'Garbage-collecting a ReadableStreamDefaultReader should not unlock its stream');
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