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Add pipeTo with different readers type

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Signed-off-by: Taym Haddadi <haddadi.taym@gmail.com>
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Taym Haddadi 2025-04-15 22:44:06 +02:00
parent 4ed54eee0e
commit 3bdcaf1cf6
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1 changed files with 33 additions and 0 deletions
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33
tests/wpt/mozilla/tests/mozilla/stream/pipeTo-reader-locks.any.js vendored Normal file
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'use strict';
promise_test(t => {
const rs = new ReadableStream();
const ws = new WritableStream();
rs.getReader();
assert_true(rs.locked, 'sanity check: the ReadableStream starts locked');
assert_false(ws.locked, 'sanity check: the WritableStream does not start locked');
return promise_rejects_js(t, TypeError, rs.pipeTo(ws)).then(() => {
assert_false(ws.locked, 'the WritableStream must still be unlocked');
});
}, 'pipeTo must fail if the ReadableStream is locked with a Default reader, and not lock the WritableStream');
promise_test(t => {
const rs = new ReadableStream({
type: 'bytes',
pull(controller) {
// No chunks are enqueued; the stream remains readable but empty.
}
});
const ws = new WritableStream();
rs.getReader({ mode: 'byob' });
assert_true(rs.locked, 'sanity check: the ReadableStream is locked by the BYOB reader');
assert_false(ws.locked, 'sanity check: the WritableStream starts unlocked');
return promise_rejects_js(t, TypeError, rs.pipeTo(ws)).then(() => {
assert_false(ws.locked, 'the WritableStream must remain unlocked after pipeTo rejection');
});
}, 'pipeTo must fail if the ReadableStream is locked with a BYOB reader, and must not lock the WritableStream');