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// META: global=window,worker,shadowrealm
// META: script=../resources/test-utils.js
// META: script=../resources/recording-streams.js
'use strict';
const error1 = new Error('error1!');
error1.name = 'error1';
const error2 = new Error('error2!');
error2.name = 'error2';
function createErroredWritableStream(t) {
return Promise.resolve().then(() => {
const ws = recordingWritableStream({
start(c) {
c.error(error2);
}
});
const writer = ws.getWriter();
return promise_rejects_exactly(t, error2, writer.closed, 'the writable stream must be errored with error2')
.then(() => {
writer.releaseLock();
assert_array_equals(ws.events, []);
return ws;
});
});
}
promise_test(t => {
const rs = recordingReadableStream({
start(c) {
c.error(error1);
}
});
const ws = recordingWritableStream({
start(c) {
c.error(error2);
}
});
// Trying to abort a stream that is erroring will give the writable's error
return promise_rejects_exactly(t, error2, rs.pipeTo(ws), 'pipeTo must reject with the writable stream\'s error').then(() => {
assert_array_equals(rs.events, []);
assert_array_equals(ws.events, []);
return Promise.all([
promise_rejects_exactly(t, error1, rs.getReader().closed, 'the readable stream must be errored with error1'),
promise_rejects_exactly(t, error2, ws.getWriter().closed, 'the writable stream must be errored with error2')
]);
});
}, 'Piping from an errored readable stream to an erroring writable stream');
promise_test(t => {
const rs = recordingReadableStream({
start(c) {
c.error(error1);
}
});
return createErroredWritableStream(t)
.then(ws => promise_rejects_exactly(t, error1, rs.pipeTo(ws), 'pipeTo must reject with the readable stream\'s error'))
.then(() => {
assert_array_equals(rs.events, []);
return promise_rejects_exactly(t, error1, rs.getReader().closed, 'the readable stream must be errored with error1');
});
}, 'Piping from an errored readable stream to an errored writable stream');
promise_test(t => {
const rs = recordingReadableStream({
start(c) {
c.error(error1);
}
});
const ws = recordingWritableStream({
start(c) {
c.error(error2);
}
});
return promise_rejects_exactly(t, error1, rs.pipeTo(ws, { preventAbort: true }),
'pipeTo must reject with the readable stream\'s error')
.then(() => {
assert_array_equals(rs.events, []);
assert_array_equals(ws.events, []);
return Promise.all([
promise_rejects_exactly(t, error1, rs.getReader().closed, 'the readable stream must be errored with error1'),
promise_rejects_exactly(t, error2, ws.getWriter().closed, 'the writable stream must be errored with error2')
]);
});
}, 'Piping from an errored readable stream to an erroring writable stream; preventAbort = true');
promise_test(t => {
const rs = recordingReadableStream({
start(c) {
c.error(error1);
}
});
return createErroredWritableStream(t)
.then(ws => promise_rejects_exactly(t, error1, rs.pipeTo(ws, { preventAbort: true }),
'pipeTo must reject with the readable stream\'s error'))
.then(() => {
assert_array_equals(rs.events, []);
return promise_rejects_exactly(t, error1, rs.getReader().closed, 'the readable stream must be errored with error1');
});
}, 'Piping from an errored readable stream to an errored writable stream; preventAbort = true');
promise_test(t => {
const rs = recordingReadableStream({
start(c) {
c.error(error1);
}
});
const ws = recordingWritableStream();
const writer = ws.getWriter();
const closePromise = writer.close();
writer.releaseLock();
return promise_rejects_exactly(t, error1, rs.pipeTo(ws), 'pipeTo must reject with the readable stream\'s error').then(() => {
assert_array_equals(rs.events, []);
assert_array_equals(ws.events, ['abort', error1]);
return Promise.all([
promise_rejects_exactly(t, error1, rs.getReader().closed, 'the readable stream must be errored with error1'),
promise_rejects_exactly(t, error1, ws.getWriter().closed,
'closed must reject with error1'),
promise_rejects_exactly(t, error1, closePromise,
'close() must reject with error1')
]);
});
}, 'Piping from an errored readable stream to a closing writable stream');
promise_test(t => {
const rs = recordingReadableStream({
start(c) {
c.error(error1);
}
});
const ws = recordingWritableStream();
const writer = ws.getWriter();
const closePromise = writer.close();
writer.releaseLock();
return flushAsyncEvents().then(() => {
return promise_rejects_exactly(t, error1, rs.pipeTo(ws), 'pipeTo must reject with the readable stream\'s error').then(() => {
assert_array_equals(rs.events, []);
assert_array_equals(ws.events, ['close']);
return Promise.all([
promise_rejects_exactly(t, error1, rs.getReader().closed, 'the readable stream must be errored with error1'),
ws.getWriter().closed,
closePromise
]);
});
});
}, 'Piping from an errored readable stream to a closed writable stream');
promise_test(t => {
const rs = recordingReadableStream({
start(c) {
c.close();
}
});
const ws = recordingWritableStream({
start(c) {
c.error(error1);
}
});
return promise_rejects_exactly(t, error1, rs.pipeTo(ws), 'pipeTo must reject with the writable stream\'s error').then(() => {
assert_array_equals(rs.events, []);
assert_array_equals(ws.events, []);
return Promise.all([
rs.getReader().closed,
promise_rejects_exactly(t, error1, ws.getWriter().closed, 'the writable stream must be errored with error1')
]);
});
}, 'Piping from a closed readable stream to an erroring writable stream');
promise_test(t => {
const rs = recordingReadableStream({
start(c) {
c.close();
}
});
return createErroredWritableStream(t)
.then(ws => promise_rejects_exactly(t, error2, rs.pipeTo(ws), 'pipeTo must reject with the writable stream\'s error'))
.then(() => {
assert_array_equals(rs.events, []);
return rs.getReader().closed;
});
}, 'Piping from a closed readable stream to an errored writable stream');
promise_test(() => {
const rs = recordingReadableStream({
start(c) {
c.close();
}
});
const ws = recordingWritableStream();
const writer = ws.getWriter();
writer.close();
writer.releaseLock();
return rs.pipeTo(ws).then(() => {
assert_array_equals(rs.events, []);
assert_array_equals(ws.events, ['close']);
return Promise.all([
rs.getReader().closed,
ws.getWriter().closed
]);
});
}, 'Piping from a closed readable stream to a closed writable stream');
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