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How to use TransformStreamDefaultController method in wpt

Best JavaScript code snippet using wpt

brand-checks.js

Source:brand-checks.js

1'use strict';2if (self.importScripts) {3  self.importScripts('/resources/testharness.js');4  self.importScripts('../resources/test-utils.js');5}6const TransformStreamDefaultController = getTransformStreamDefaultControllerConstructor();7function getTransformStreamDefaultControllerConstructor() {8  return realTSDefaultController().constructor;9}10function fakeTS() {11  return Object.setPrototypeOf({12    get readable() { return new ReadableStream(); },13    get writable() { return new WritableStream(); }14  }, TransformStream.prototype);15}16function realTS() {17  return new TransformStream();18}19function fakeTSDefaultController() {20  return Object.setPrototypeOf({21    get desiredSize() { return 1; },22    enqueue() { },23    close() { },24    error() { }25  }, TransformStreamDefaultController.prototype);26}27function realTSDefaultController() {28  let controller;29  new TransformStream({30    start(c) {31      controller = c;32    }33  });34  return controller;35}36test(() => {37  getterThrowsForAll(TransformStream.prototype, 'readable',38                     [fakeTS(), realTSDefaultController(), undefined, null]);39}, 'TransformStream.prototype.readable enforces a brand check');40test(() => {41  getterThrowsForAll(TransformStream.prototype, 'writable',42                     [fakeTS(), realTSDefaultController(), undefined, null]);43}, 'TransformStream.prototype.writable enforces a brand check');44test(() => {45  constructorThrowsForAll(TransformStreamDefaultController,46                          [fakeTS(), realTS(), realTSDefaultController(), undefined, null]);47}, 'TransformStreamDefaultConstructor enforces a brand check and doesn\'t permit independent construction');48test(() => {49  getterThrowsForAll(TransformStreamDefaultController.prototype, 'desiredSize',50                     [fakeTSDefaultController(), realTS(), undefined, null]);51}, 'TransformStreamDefaultController.prototype.desiredSize enforces a brand check');52test(() => {53  methodThrowsForAll(TransformStreamDefaultController.prototype, 'enqueue',54                     [fakeTSDefaultController(), realTS(), undefined, null]);55}, 'TransformStreamDefaultController.prototype.enqueue enforces a brand check');56test(() => {57  methodThrowsForAll(TransformStreamDefaultController.prototype, 'terminate',58                     [fakeTSDefaultController(), realTS(), undefined, null]);59}, 'TransformStreamDefaultController.prototype.terminate enforces a brand check');60test(() => {61  methodThrowsForAll(TransformStreamDefaultController.prototype, 'error',62                     [fakeTSDefaultController(), realTS(), undefined, null]);63}, 'TransformStreamDefaultController.prototype.error enforces a brand check');...

Using AI Code Generation

1import { TransformStream } from 'streams';2const ts = new TransformStream();3const reader = ts.readable.getReader();4const writer = ts.writable.getWriter();5const controller = writer[kState].controller;6controller.enqueue('a');7controller.close();8reader.read().then(result => {9  console.log(result.value);10  console.log(result.done);11});12test(() => {13  const ts = new TransformStream();14  const reader = ts.readable.getReader();15  const writer = ts.writable.getWriter();16  const controller = writer[kState].controller;17  controller.enqueue('a');18  controller.close();19  return reader.read().then(result => {20    assert_equals(result.value, 'a', 'read() should resolve with the chunk');21    assert_false(result.done, 'read() should resolve with done false');22  });23}, 'TransformStream with byte source: enqueue() should work');24test(() => {25  const ts = new TransformStream();26  const reader = ts.readable.getReader();27  const writer = ts.writable.getWriter();28  const controller = writer[kState].controller;29  controller.enqueue('a');30  controller.close();31  return reader.read().then(result => {32    assert_equals(result.value, 'a', 'read() should resolve with the chunk');33    assert_false(result.done, 'read() should resolve with done false');34  });35}, 'TransformStream with byte source: enqueue() should work');36test(() => {37  const ts = new TransformStream();38  const reader = ts.readable.getReader();39  const writer = ts.writable.getWriter();40  const controller = writer[kState].controller;41  controller.enqueue('a');42  controller.close();43  return reader.read().then(result => {44    assert_equals(result.value, 'a', 'read() should resolve with the chunk');45    assert_false(result.done, 'read() should resolve with done false');46  });47}, 'TransformStream with byte source: enqueue() should work');

Using AI Code Generation

1const ts = new TransformStream();2const writer = ts.writable.getWriter();3const reader = ts.readable.getReader();4const transform = (chunk, controller) => {5  controller.enqueue(chunk);6};7const transformStreamDefaultController = ts.controller;8transformStreamDefaultController.enqueue('a');9transformStreamDefaultController.enqueue('b');10transformStreamDefaultController.enqueue('c');11transformStreamDefaultController.close();12writer.ready.then(() => {13  writer.write('d');14  writer.write('e');15  writer.close();16});17reader.read().then(result => {18  assert_equals(result.value, 'a');19  return reader.read();20}).then(result => {21  assert_equals(result.value, 'b');22  return reader.read();23}).then(result => {24  assert_equals(result.value, 'c');25  return reader.read();26}).then(result => {27  assert_equals(result.value, 'd');28  return reader.read();29}).then(result => {30  assert_equals(result.value, 'e');31  return reader.read();32}).then(result => {33  assert_true(result.done);34});

Using AI Code Generation

1let controller;2const ts = new TranformS({3  start(c) {4    controller = c;5  }6});7const reader = ts.readable.getReaer();8const writer = ts.writable.getWriter();9ontrller.equeue('a');10writer.write('b');11wrie.clse();12reader.read().then(result => {13  assert_equals(result.value, 'a');14  return reader.read();15}).then(result => {16  assert_equals(resut.vaue, 'b');17  assert_tru(esult.done);18});19const ts = new TransformStream();20const writer = ts.writable.getWriter();21const reader = ts.readable.getReader();22const transform = (chunk, controller) => {23  controller.enqueue(chunk);24};25const transformStreamDefaultController = ts.controller;26transformStreamDefaultController.enqueue('a');27transformStreamDefaultController.enqueue('b');28transformStreamDefaultController.enqueue('c');29writer.ready.then(() => {30  writer.write('d');31  writer.write('e');32  writer.close();33});34reader.read().then(result => {35  assert_equals(result.value, 'a');36  return reader.read();37}).then(result => {38  assert_equals(result.value, 'b');39  return reader.read();40}).then(result => {41  assert_equals(result.value, 'c');42  return reader.read();43}).then(result => {44  assert_equals(result.value, 'd');45  return reader.read();46}).then(result => {47  assert_equals(result.value, 'e');48  return reader.read();49}).then(result => {50  assert_true(result.done);51});

Using AI Code Generation

1var t = async_test('TransformStreamDefaultController method of wpt test');2var ts = new TransformStream();3var writer = ts.writable.getWriter();4var reader = ts.readable.getReader();5var transformer = {6  start(controller) {7    controller.enqueue('a');8    controller.enqueue('b');9    controller.enqueue('c');10  },11  transform(chunk, controller) {12    controller.enqueue(chunk.toUpperCase());13  },14  flush(controller) {15    controller.enqueue('!');16  }17};18ts = new TransformStream(transformer);19writer = ts.writable.getWriter();20reader = ts.readable.getReader();21writer.write('a').then(function() {22  return writer.write('b');23}).then(function() {24  return writer.write('c');25}).then(function() {26  return writer.close();27}).then(function() {28  return reader.read();29}).then(function(result1) {30  assert_equals(result1.value, 'A');31  assert_false(result1.done);32  return reader.read();33}).then(function(result2) {34  assert_equals(result2.value, 'B');35  assert_false(result2.done);36  return reader.read();37}).then(function(result3) {38  assert_equals(result3.value, 'C');39  assert_false(result3.done);40  return reader.read();41}).then(function(result4) {42  assert_equals(result4.value, '!');43  assert_false(result4.done);44  return reader.read();45}).then(function(result5) {46  assert_equals(result5.value, undefined);47  assert_true(result5.done);48  t.done();49});50var t = async_test('TransformStreamDefaultController method of wpt test');51var ts = new TransformStream();52var writer = ts.writable.getWriter();53var reader = ts.readable.getReader();54var transformer = {55  start(controller) {56    controller.enqueue('a');57    controller.enqueue('b');58    controller.enqueue('c');59  },60  transform(chunk, controller) {61    controller.enqueue(chunk.toUpperCase());62  },63  flush(controller) {64    controller.enqueue('!');65  }66};67ts = new TransformStream(transformer);68writer = ts.writable.getWriter();69reader = ts.readable.getReader();70writer.write('a').then(function() {71  return writer.write('b');72}).then(function() {73  return writer.write('c');74}).then(function() {75  return writer.close();76}).then(function() {

Using AI Code Generation

1'use strict';2promise_test(t => {3  let controller;4  const ts = new TransformStream({5    start(c) {6      controller = c;7    }8  });9  assert_equals(controller.desiredSize, 1, 'desiredSize should be 1');10  return ts.writable.getWriter().write('a').then(() => {11    assert_equals(controller.desiredSize, 0, 'desiredSize should be 0');12    return ts.writable.getWriter().write('b');13  }).then(() => {14    assert_equals(controller.desiredSize, -1, 'desiredSize should be -1');15  });16}, 'TransformStreamDefaultController.desiredSize should be correct');17promise_test(t => {18  let controller;19  const ts = new TransformStream({20    start(c) {21      controller = c;22    }23  });24  assert_false(controller.enqueueCalled, 'enqueueCalled should be false');25  controller.enqueue('a');26  assert_true(controller.enqueueCalled, 'enqueueCalled should be true');27}, 'TransformStreamDefaultController.enqueue should set enqueueCalled to true');28promise_test(t => {29  let controller;30  const ts = new TransformStream({31    start(c) {32      controller = c;33    }34  });35  assert_false(controller.errorCalled, 'errorCalled should be false');36  controller.error('a');37  assert_true(controller.errorCalled, 'errorCalled should be true');38}, 'TransformStreamDefaultController.error should set errorCalled to true');39promise_test(t => {40  let controller;41  const ts = new TransformStream({42    start(c) {43      controller = c;44    }45  });46  assert_false(controller.terminateCalled, 'terminateCalled should be false');47  controller.terminate();48  assert_true(controller.terminateCalled, 'terminateCalled should be true');49}, 'TransformStreamDefaultController.terminate should set terminateCalled to true');50promise_test(t => {51  let controller;52  const ts = new TransformStream({53    start(c) {54      controller = c;55    }56  });57  assert_false(controller.flushRequested, 'flushRequested should be false');58  controller.enqueue('a');

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