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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/streams/writable-streams/write.any.js | |
parent | Initial commit. (diff) | |
download | firefox-upstream.tar.xz firefox-upstream.zip |
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/streams/writable-streams/write.any.js')
-rw-r--r-- | testing/web-platform/tests/streams/writable-streams/write.any.js | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/testing/web-platform/tests/streams/writable-streams/write.any.js b/testing/web-platform/tests/streams/writable-streams/write.any.js new file mode 100644 index 0000000000..f0246f6cad --- /dev/null +++ b/testing/web-platform/tests/streams/writable-streams/write.any.js @@ -0,0 +1,284 @@ +// META: global=window,worker +// 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 writeArrayToStream(array, writableStreamWriter) { + array.forEach(chunk => writableStreamWriter.write(chunk)); + return writableStreamWriter.close(); +} + +promise_test(() => { + let storage; + const ws = new WritableStream({ + start() { + storage = []; + }, + + write(chunk) { + return delay(0).then(() => storage.push(chunk)); + }, + + close() { + return delay(0); + } + }); + + const writer = ws.getWriter(); + + const input = [1, 2, 3, 4, 5]; + return writeArrayToStream(input, writer) + .then(() => assert_array_equals(storage, input, 'correct data should be relayed to underlying sink')); +}, 'WritableStream should complete asynchronous writes before close resolves'); + +promise_test(() => { + const ws = recordingWritableStream(); + + const writer = ws.getWriter(); + + const input = [1, 2, 3, 4, 5]; + return writeArrayToStream(input, writer) + .then(() => assert_array_equals(ws.events, ['write', 1, 'write', 2, 'write', 3, 'write', 4, 'write', 5, 'close'], + 'correct data should be relayed to underlying sink')); +}, 'WritableStream should complete synchronous writes before close resolves'); + +promise_test(() => { + const ws = new WritableStream({ + write() { + return 'Hello'; + } + }); + + const writer = ws.getWriter(); + + const writePromise = writer.write('a'); + return writePromise + .then(value => assert_equals(value, undefined, 'fulfillment value must be undefined')); +}, 'fulfillment value of ws.write() call should be undefined even if the underlying sink returns a non-undefined ' + + 'value'); + +promise_test(() => { + let resolveSinkWritePromise; + const ws = new WritableStream({ + write() { + return new Promise(resolve => { + resolveSinkWritePromise = resolve; + }); + } + }); + + const writer = ws.getWriter(); + + assert_equals(writer.desiredSize, 1, 'desiredSize should be 1'); + + return writer.ready.then(() => { + const writePromise = writer.write('a'); + let writePromiseResolved = false; + assert_not_equals(resolveSinkWritePromise, undefined, 'resolveSinkWritePromise should not be undefined'); + + assert_equals(writer.desiredSize, 0, 'desiredSize should be 0 after writer.write()'); + + return Promise.all([ + writePromise.then(value => { + writePromiseResolved = true; + assert_equals(resolveSinkWritePromise, undefined, 'sinkWritePromise should be fulfilled before writePromise'); + + assert_equals(value, undefined, 'writePromise should be fulfilled with undefined'); + }), + writer.ready.then(value => { + assert_equals(resolveSinkWritePromise, undefined, 'sinkWritePromise should be fulfilled before writer.ready'); + assert_true(writePromiseResolved, 'writePromise should be fulfilled before writer.ready'); + + assert_equals(writer.desiredSize, 1, 'desiredSize should be 1 again'); + + assert_equals(value, undefined, 'writePromise should be fulfilled with undefined'); + }), + flushAsyncEvents().then(() => { + resolveSinkWritePromise(); + resolveSinkWritePromise = undefined; + }) + ]); + }); +}, 'WritableStream should transition to waiting until write is acknowledged'); + +promise_test(t => { + let sinkWritePromiseRejectors = []; + const ws = new WritableStream({ + write() { + const sinkWritePromise = new Promise((r, reject) => sinkWritePromiseRejectors.push(reject)); + return sinkWritePromise; + } + }); + + const writer = ws.getWriter(); + + assert_equals(writer.desiredSize, 1, 'desiredSize should be 1'); + + return writer.ready.then(() => { + const writePromise = writer.write('a'); + assert_equals(sinkWritePromiseRejectors.length, 1, 'there should be 1 rejector'); + assert_equals(writer.desiredSize, 0, 'desiredSize should be 0'); + + const writePromise2 = writer.write('b'); + assert_equals(sinkWritePromiseRejectors.length, 1, 'there should be still 1 rejector'); + assert_equals(writer.desiredSize, -1, 'desiredSize should be -1'); + + const closedPromise = writer.close(); + + assert_equals(writer.desiredSize, -1, 'desiredSize should still be -1'); + + return Promise.all([ + promise_rejects_exactly(t, error1, closedPromise, + 'closedPromise should reject with the error returned from the sink\'s write method') + .then(() => assert_equals(sinkWritePromiseRejectors.length, 0, + 'sinkWritePromise should reject before closedPromise')), + promise_rejects_exactly(t, error1, writePromise, + 'writePromise should reject with the error returned from the sink\'s write method') + .then(() => assert_equals(sinkWritePromiseRejectors.length, 0, + 'sinkWritePromise should reject before writePromise')), + promise_rejects_exactly(t, error1, writePromise2, + 'writePromise2 should reject with the error returned from the sink\'s write method') + .then(() => assert_equals(sinkWritePromiseRejectors.length, 0, + 'sinkWritePromise should reject before writePromise2')), + flushAsyncEvents().then(() => { + sinkWritePromiseRejectors[0](error1); + sinkWritePromiseRejectors = []; + }) + ]); + }); +}, 'when write returns a rejected promise, queued writes and close should be cleared'); + +promise_test(t => { + const ws = new WritableStream({ + write() { + throw error1; + } + }); + + const writer = ws.getWriter(); + + return promise_rejects_exactly(t, error1, writer.write('a'), + 'write() should reject with the error returned from the sink\'s write method') + .then(() => promise_rejects_js(t, TypeError, writer.close(), 'close() should be rejected')); +}, 'when sink\'s write throws an error, the stream should become errored and the promise should reject'); + +promise_test(t => { + const ws = new WritableStream({ + write(chunk, controller) { + controller.error(error1); + throw error2; + } + }); + + const writer = ws.getWriter(); + + return promise_rejects_exactly(t, error2, writer.write('a'), + 'write() should reject with the error returned from the sink\'s write method ') + .then(() => { + return Promise.all([ + promise_rejects_exactly(t, error1, writer.ready, + 'writer.ready must reject with the error passed to the controller'), + promise_rejects_exactly(t, error1, writer.closed, + 'writer.closed must reject with the error passed to the controller') + ]); + }); +}, 'writer.write(), ready and closed reject with the error passed to controller.error() made before sink.write' + + ' rejection'); + +promise_test(() => { + const numberOfWrites = 1000; + + let resolveFirstWritePromise; + let writeCount = 0; + const ws = new WritableStream({ + write() { + ++writeCount; + if (!resolveFirstWritePromise) { + return new Promise(resolve => { + resolveFirstWritePromise = resolve; + }); + } + return Promise.resolve(); + } + }); + + const writer = ws.getWriter(); + return writer.ready.then(() => { + for (let i = 1; i < numberOfWrites; ++i) { + writer.write('a'); + } + const writePromise = writer.write('a'); + + assert_equals(writeCount, 1, 'should have called sink\'s write once'); + + resolveFirstWritePromise(); + + return writePromise + .then(() => + assert_equals(writeCount, numberOfWrites, `should have called sink's write ${numberOfWrites} times`)); + }); +}, 'a large queue of writes should be processed completely'); + +promise_test(() => { + const stream = recordingWritableStream(); + const w = stream.getWriter(); + const WritableStreamDefaultWriter = w.constructor; + w.releaseLock(); + const writer = new WritableStreamDefaultWriter(stream); + return writer.ready.then(() => { + writer.write('a'); + assert_array_equals(stream.events, ['write', 'a'], 'write() should be passed to sink'); + }); +}, 'WritableStreamDefaultWriter should work when manually constructed'); + +promise_test(() => { + let thenCalled = false; + const ws = new WritableStream({ + write() { + return { + then(onFulfilled) { + thenCalled = true; + onFulfilled(); + } + }; + } + }); + return ws.getWriter().write('a').then(() => assert_true(thenCalled, 'thenCalled should be true')); +}, 'returning a thenable from write() should work'); + +promise_test(() => { + const stream = new WritableStream(); + const writer = stream.getWriter(); + const WritableStreamDefaultWriter = writer.constructor; + assert_throws_js(TypeError, () => new WritableStreamDefaultWriter(stream), + 'should not be able to construct on locked stream'); + // If stream.[[writer]] no longer points to |writer| then the closed Promise + // won't work properly. + return Promise.all([writer.close(), writer.closed]); +}, 'failing DefaultWriter constructor should not release an existing writer'); + +promise_test(t => { + const ws = new WritableStream({ + start() { + return Promise.reject(error1); + } + }, { highWaterMark: 0 }); + const writer = ws.getWriter(); + return Promise.all([ + promise_rejects_exactly(t, error1, writer.ready, 'ready should be rejected'), + promise_rejects_exactly(t, error1, writer.write(), 'write() should be rejected') + ]); +}, 'write() on a stream with HWM 0 should not cause the ready Promise to resolve'); + +promise_test(t => { + const ws = new WritableStream(); + const writer = ws.getWriter(); + writer.releaseLock(); + return promise_rejects_js(t, TypeError, writer.write(), 'write should reject'); +}, 'writing to a released writer should reject the returned promise'); |