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// Text*Stream should still work even if the realm is detached.
// Adds an iframe to the document and returns it.
function addIframe() {
const iframe = document.createElement('iframe');
document.body.appendChild(iframe);
return iframe;
}
promise_test(async t => {
const iframe = addIframe();
const stream = new iframe.contentWindow.TextDecoderStream();
const readPromise = stream.readable.getReader().read();
const writer = stream.writable.getWriter();
await writer.ready;
iframe.remove();
return Promise.all([writer.write(new Uint8Array([65])),readPromise]);
}, 'TextDecoderStream: write in detached realm should succeed');
promise_test(async t => {
const iframe = addIframe();
const stream = new iframe.contentWindow.TextEncoderStream();
const readPromise = stream.readable.getReader().read();
const writer = stream.writable.getWriter();
await writer.ready;
iframe.remove();
return Promise.all([writer.write('A'), readPromise]);
}, 'TextEncoderStream: write in detached realm should succeed');
for (const type of ['TextEncoderStream', 'TextDecoderStream']) {
promise_test(async t => {
const iframe = addIframe();
const stream = new iframe.contentWindow[type]();
iframe.remove();
return stream.writable.close();
}, `${type}: close in detached realm should succeed`);
}
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