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22 | 'use strict';
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23 |
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24 | var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
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25 |
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26 | var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
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27 |
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28 | var _util = require('../../shared/util');
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29 |
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30 | function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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31 |
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32 | describe('util_stream', function () {
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33 | var FakePort = function () {
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34 | function FakePort() {
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35 | _classCallCheck(this, FakePort);
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36 |
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37 | this._listeners = [];
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38 | this._deferred = Promise.resolve(undefined);
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39 | }
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40 |
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41 | _createClass(FakePort, [{
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42 | key: 'postMessage',
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43 | value: function postMessage(obj) {
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44 | var _this = this;
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45 |
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46 | var event = { data: obj };
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47 | this._deferred.then(function () {
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48 | _this._listeners.forEach(function (listener) {
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49 | listener.call(this, event);
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50 | }, _this);
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51 | });
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52 | }
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53 | }, {
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54 | key: 'addEventListener',
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55 | value: function addEventListener(name, listener) {
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56 | this._listeners.push(listener);
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57 | }
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58 | }, {
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59 | key: 'removeEventListener',
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60 | value: function removeEventListener(name, listener) {
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61 | var i = this._listeners.indexOf(listener);
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62 | this._listeners.splice(i, 1);
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63 | }
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64 | }, {
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65 | key: 'terminate',
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66 | value: function terminate() {
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67 | this._listeners = [];
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68 | }
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69 | }]);
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70 |
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71 | return FakePort;
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72 | }();
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73 |
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74 | function sleep(ticks) {
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75 | return Promise.resolve().then(function () {
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76 | return ticks && sleep(ticks - 1);
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77 | });
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78 | }
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79 | describe('sendWithStream', function () {
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80 | it('should return a ReadableStream', function () {
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81 | var port = new FakePort();
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82 | var messageHandler1 = new _util.MessageHandler('main', 'worker', port);
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83 | var readable = messageHandler1.sendWithStream('fakeHandler');
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84 | expect(typeof readable === 'undefined' ? 'undefined' : _typeof(readable)).toEqual('object');
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85 | expect(_typeof(readable.getReader)).toEqual('function');
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86 | });
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87 | it('should read using a reader', function (done) {
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88 | var log = '';
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89 | var port = new FakePort();
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90 | var messageHandler1 = new _util.MessageHandler('main', 'worker', port);
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91 | var messageHandler2 = new _util.MessageHandler('worker', 'main', port);
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92 | messageHandler2.on('fakeHandler', function (data, sink) {
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93 | sink.onPull = function () {
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94 | log += 'p';
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95 | };
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96 | sink.onCancel = function (reason) {
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97 | log += 'c';
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98 | };
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99 | sink.ready.then(function () {
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100 | sink.enqueue('hi');
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101 | return sink.ready;
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102 | }).then(function () {
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103 | sink.close();
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104 | });
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105 | return sleep(5);
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106 | });
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107 | var readable = messageHandler1.sendWithStream('fakeHandler', {}, {
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108 | highWaterMark: 1,
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109 | size: function size() {
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110 | return 1;
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111 | }
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112 | });
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113 | var reader = readable.getReader();
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114 | sleep(10).then(function () {
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115 | expect(log).toEqual('');
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116 | return reader.read();
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117 | }).then(function (result) {
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118 | expect(log).toEqual('p');
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119 | expect(result.value).toEqual('hi');
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120 | expect(result.done).toEqual(false);
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121 | return sleep(10);
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122 | }).then(function () {
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123 | return reader.read();
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124 | }).then(function (result) {
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125 | expect(result.value).toEqual(undefined);
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126 | expect(result.done).toEqual(true);
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127 | done();
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128 | });
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129 | });
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130 | it('should not read any data when cancelled', function (done) {
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131 | var log = '';
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132 | var port = new FakePort();
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133 | var messageHandler2 = new _util.MessageHandler('worker', 'main', port);
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134 | messageHandler2.on('fakeHandler', function (data, sink) {
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135 | sink.onPull = function () {
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136 | log += 'p';
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137 | };
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138 | sink.onCancel = function (reason) {
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139 | log += 'c';
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140 | };
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141 | log += '0';
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142 | sink.ready.then(function () {
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143 | log += '1';
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144 | sink.enqueue([1, 2, 3, 4], 4);
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145 | return sink.ready;
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146 | }).then(function () {
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147 | log += '2';
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148 | sink.enqueue([5, 6, 7, 8], 4);
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149 | return sink.ready;
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150 | }).then(function () {
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151 | log += '3';
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152 | sink.close();
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153 | }, function () {
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154 | log += '4';
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155 | });
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156 | });
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157 | var messageHandler1 = new _util.MessageHandler('main', 'worker', port);
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158 | var readable = messageHandler1.sendWithStream('fakeHandler', {}, {
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159 | highWaterMark: 4,
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160 | size: function size(arr) {
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161 | return arr.length;
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162 | }
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163 | });
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164 | var reader = readable.getReader();
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165 | sleep(10).then(function () {
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166 | expect(log).toEqual('01');
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167 | return reader.read();
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168 | }).then(function (result) {
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169 | expect(result.value).toEqual([1, 2, 3, 4]);
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170 | expect(result.done).toEqual(false);
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171 | return sleep(10);
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172 | }).then(function () {
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173 | expect(log).toEqual('01p2');
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174 | return reader.cancel();
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175 | }).then(function () {
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176 | expect(log).toEqual('01p2c4');
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177 | done();
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178 | });
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179 | });
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180 | it('should not read when errored', function (done) {
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181 | var log = '';
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182 | var port = new FakePort();
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183 | var messageHandler2 = new _util.MessageHandler('worker', 'main', port);
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184 | messageHandler2.on('fakeHandler', function (data, sink) {
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185 | sink.onPull = function () {
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186 | log += 'p';
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187 | };
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188 | sink.onCancel = function (reason) {
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189 | log += 'c';
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190 | };
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191 | sink.ready.then(function () {
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192 | sink.enqueue([1, 2, 3, 4], 4);
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193 | return sink.ready;
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194 | }).then(function () {
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195 | log += 'error';
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196 | sink.error('error');
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197 | });
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198 | });
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199 | var messageHandler1 = new _util.MessageHandler('main', 'worker', port);
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200 | var readable = messageHandler1.sendWithStream('fakeHandler', {}, {
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201 | highWaterMark: 4,
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202 | size: function size(arr) {
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203 | return arr.length;
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204 | }
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205 | });
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206 | var reader = readable.getReader();
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207 | sleep(10).then(function () {
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208 | expect(log).toEqual('');
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209 | return reader.read();
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210 | }).then(function (result) {
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211 | expect(result.value).toEqual([1, 2, 3, 4]);
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212 | expect(result.done).toEqual(false);
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213 | return reader.read();
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214 | }).then(function () {}, function (reason) {
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215 | expect(reason).toEqual('error');
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216 | done();
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217 | });
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218 | });
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219 | it('should read data with blocking promise', function (done) {
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220 | var log = '';
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221 | var port = new FakePort();
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222 | var messageHandler2 = new _util.MessageHandler('worker', 'main', port);
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223 | messageHandler2.on('fakeHandler', function (data, sink) {
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224 | sink.onPull = function () {
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225 | log += 'p';
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226 | };
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227 | sink.onCancel = function (reason) {
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228 | log += 'c';
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229 | };
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230 | log += '0';
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231 | sink.ready.then(function () {
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232 | log += '1';
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233 | sink.enqueue([1, 2, 3, 4], 4);
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234 | return sink.ready;
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235 | }).then(function () {
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236 | log += '2';
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237 | sink.enqueue([5, 6, 7, 8], 4);
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238 | return sink.ready;
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239 | }).then(function () {
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240 | sink.close();
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241 | });
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242 | });
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243 | var messageHandler1 = new _util.MessageHandler('main', 'worker', port);
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244 | var readable = messageHandler1.sendWithStream('fakeHandler', {}, {
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245 | highWaterMark: 4,
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246 | size: function size(arr) {
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247 | return arr.length;
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248 | }
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249 | });
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250 | var reader = readable.getReader();
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251 | sleep(10).then(function () {
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252 | expect(log).toEqual('01');
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253 | return reader.read();
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254 | }).then(function (result) {
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255 | expect(result.value).toEqual([1, 2, 3, 4]);
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256 | expect(result.done).toEqual(false);
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257 | return sleep(10);
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258 | }).then(function () {
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259 | expect(log).toEqual('01p2');
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260 | return reader.read();
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261 | }).then(function (result) {
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262 | expect(result.value).toEqual([5, 6, 7, 8]);
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263 | expect(result.done).toEqual(false);
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264 | return sleep(10);
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265 | }).then(function () {
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266 | expect(log).toEqual('01p2p');
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267 | return reader.read();
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268 | }).then(function (result) {
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269 | expect(result.value).toEqual(undefined);
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270 | expect(result.done).toEqual(true);
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271 | done();
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272 | });
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273 | });
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274 | it('should read data with blocking promise and buffer whole data' + ' into stream', function (done) {
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275 | var log = '';
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276 | var port = new FakePort();
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277 | var messageHandler2 = new _util.MessageHandler('worker', 'main', port);
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278 | messageHandler2.on('fakeHandler', function (data, sink) {
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279 | sink.onPull = function () {
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280 | log += 'p';
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281 | };
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282 | sink.onCancel = function (reason) {
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283 | log += 'c';
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284 | };
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285 | log += '0';
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286 | sink.ready.then(function () {
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287 | log += '1';
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288 | sink.enqueue([1, 2, 3, 4], 4);
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289 | return sink.ready;
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290 | }).then(function () {
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291 | log += '2';
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292 | sink.enqueue([5, 6, 7, 8], 4);
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293 | return sink.ready;
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294 | }).then(function () {
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295 | sink.close();
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296 | });
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297 | return sleep(10);
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298 | });
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299 | var messageHandler1 = new _util.MessageHandler('main', 'worker', port);
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300 | var readable = messageHandler1.sendWithStream('fakeHandler', {}, {
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301 | highWaterMark: 8,
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302 | size: function size(arr) {
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303 | return arr.length;
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304 | }
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305 | });
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306 | var reader = readable.getReader();
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307 | sleep(10).then(function () {
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308 | expect(log).toEqual('012');
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309 | return reader.read();
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310 | }).then(function (result) {
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311 | expect(result.value).toEqual([1, 2, 3, 4]);
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312 | expect(result.done).toEqual(false);
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313 | return sleep(10);
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314 | }).then(function () {
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315 | expect(log).toEqual('012p');
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316 | return reader.read();
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317 | }).then(function (result) {
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318 | expect(result.value).toEqual([5, 6, 7, 8]);
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319 | expect(result.done).toEqual(false);
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320 | return sleep(10);
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321 | }).then(function () {
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322 | expect(log).toEqual('012p');
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323 | return reader.read();
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324 | }).then(function (result) {
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325 | expect(result.value).toEqual(undefined);
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326 | expect(result.done).toEqual(true);
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327 | done();
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328 | });
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329 | });
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330 | it('should ignore any pull after close is called', function (done) {
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331 | var log = '';
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332 | var port = new FakePort();
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333 | var capability = (0, _util.createPromiseCapability)();
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334 | var messageHandler2 = new _util.MessageHandler('worker', 'main', port);
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335 | messageHandler2.on('fakeHandler', function (data, sink) {
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336 | sink.onPull = function () {
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337 | log += 'p';
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338 | };
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339 | sink.onCancel = function (reason) {
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340 | log += 'c';
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341 | };
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342 | log += '0';
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343 | sink.ready.then(function () {
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344 | log += '1';
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345 | sink.enqueue([1, 2, 3, 4], 4);
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346 | });
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347 | return capability.promise.then(function () {
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348 | sink.close();
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349 | });
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350 | });
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351 | var messageHandler1 = new _util.MessageHandler('main', 'worker', port);
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352 | var readable = messageHandler1.sendWithStream('fakeHandler', {}, {
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353 | highWaterMark: 10,
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354 | size: function size(arr) {
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355 | return arr.length;
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356 | }
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357 | });
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358 | var reader = readable.getReader();
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359 | sleep(10).then(function () {
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360 | expect(log).toEqual('01');
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361 | capability.resolve();
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362 | return capability.promise.then(function () {
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363 | return reader.read();
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364 | });
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365 | }).then(function (result) {
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366 | expect(result.value).toEqual([1, 2, 3, 4]);
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367 | expect(result.done).toEqual(false);
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368 | return sleep(10);
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369 | }).then(function () {
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370 | expect(log).toEqual('01');
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371 | return reader.read();
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372 | }).then(function (result) {
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373 | expect(result.value).toEqual(undefined);
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374 | expect(result.done).toEqual(true);
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375 | done();
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376 | });
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377 | });
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378 | });
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379 | }); |
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