1 | var assert = require('assert');
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2 | var http = require('http');
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3 | var util = require('util');
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4 | var net = require('net');
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5 | var EventEmitter = require('events').EventEmitter;
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6 | var zetta = require('../zetta');
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7 | var MemRegistry = require('./fixture/mem_registry');
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8 | var MemPeerRegistry = require('./fixture/mem_peer_registry');
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9 | var PeerSocket = require('../lib/peer_socket');
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10 | var PeerClient = require('../lib/peer_client');
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11 |
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12 | var Ws = function() {
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13 | EventEmitter.call(this)
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14 | this._socket = new net.Socket();
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15 | this.upgradeReq = { url: '/peers/0ac7e9c2-f03f-478c-95f5-2028fc9c2b6e?connectionId=46f466b0-1017-430b-8993-d7a8c896e014'};
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16 | };
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17 | util.inherits(Ws, EventEmitter);
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18 | Ws.prototype.close = function() {};
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19 | Ws.prototype.send = function(data, options, cb) {
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20 | var r = this.emit('onsend', data, options, cb);
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21 | };
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22 |
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23 |
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24 | describe('Peer Connection Logic', function() {
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25 | var cloud = null;
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26 | var cloudUrl = null;
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27 | beforeEach(function(done) {
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28 | cloud = zetta({ registry: new MemRegistry(), peerRegistry: new MemPeerRegistry() });
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29 | cloud.silent();
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30 | cloud.listen(0, function(err) {
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31 | if (err) {
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32 | return done(err);
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33 | }
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34 |
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35 | cloudUrl = 'ws://localhost:' + cloud.httpServer.server.address().port;
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36 | done();
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37 | })
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38 | });
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39 |
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40 | afterEach(function(done) {
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41 | cloud.httpServer.server.close();
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42 | done();
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43 | });
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44 |
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45 | describe('#link', function() {
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46 | it('should work before .listen is ran', function(done) {
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47 | var z = zetta({ registry: new MemRegistry(), peerRegistry: new MemPeerRegistry() })
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48 | .silent()
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49 | .link(cloudUrl)
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50 | .listen(0);
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51 |
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52 | z.pubsub.subscribe('_peer/connect', function(topic, data) {
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53 | if (data.peer.url.indexOf(cloudUrl) === 0) {
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54 | done();
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55 | } else {
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56 | done(new Error('Peer connected to another url then expected'))
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57 | }
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58 | })
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59 | })
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60 |
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61 | it('should work after .listen is ran', function(done) {
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62 | var z = zetta({ registry: new MemRegistry(), peerRegistry: new MemPeerRegistry() })
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63 | .silent()
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64 | .listen(0, function() {
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65 | z.link(cloudUrl);
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66 | });
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67 |
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68 | z.pubsub.subscribe('_peer/connect', function(topic, data) {
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69 | if (data.peer.url.indexOf(cloudUrl) === 0) {
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70 | done();
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71 | } else {
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72 | done(new Error('Peer connected to another url then expected'))
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73 | }
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74 | })
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75 | })
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76 |
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77 | it('should wire up request extensions', function(done) {
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78 | var called = false;
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79 | var z = zetta({ registry: new MemRegistry(), peerRegistry: new MemPeerRegistry() })
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80 | .silent()
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81 | .use(function(server) {
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82 | server.onPeerRequest(function(client) {
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83 | client
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84 | .use(function(handle) {
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85 | handle('request', function(pipeline) {
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86 | return pipeline.map(function(env) {
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87 | assert(env.request);
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88 | if (!called) {
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89 | called = true;
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90 | done();
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91 | }
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92 | return env;
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93 | });
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94 | });
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95 | });
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96 | });
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97 | })
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98 | .link(cloudUrl)
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99 | .listen(0);
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100 | });
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101 |
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102 | it('should wire up response extensions', function(done) {
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103 | var z = zetta({ registry: new MemRegistry(), peerRegistry: new MemPeerRegistry() })
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104 | .silent()
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105 | .use(function(server) {
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106 | server.onPeerResponse(function(request) {
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107 | return request
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108 | .map(function(env) {
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109 | assert(env.request);
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110 | assert(env.response);
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111 | assert(env.upgrade);
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112 | done();
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113 | return env;
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114 | });
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115 | });
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116 | })
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117 | .link(cloudUrl)
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118 | .listen(0);
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119 | });
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120 | })
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121 |
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122 | describe('Handle spdy agent errors', function() {
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123 | it('should catch error event', function(done) {
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124 | var ws = new Ws();
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125 | var socket = new PeerSocket(ws, 'some-peer', new MemPeerRegistry);
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126 | socket.on('error', function(err) {
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127 | if (err.message === 'spdy-error') {
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128 | done();
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129 | }
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130 | });
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131 | socket.agent.emit('error', new Error('spdy-error'));
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132 | });
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133 | })
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134 |
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135 | describe('Peer_socket error events', function() {
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136 |
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137 | it('http-server should handle multiple error events', function(done) {
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138 | var z = zetta({ registry: new MemRegistry(), peerRegistry: new MemPeerRegistry() })
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139 | .name('test-peer')
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140 | .silent()
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141 | .link(cloudUrl)
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142 | .listen(0);
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143 |
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144 | var onConnect = function(topic, data) {
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145 | cloud.pubsub.unsubscribe('_peer/connect', onConnect);
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146 | assert(cloud.httpServer.peers['test-peer']);
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147 | cloud.pubsub.subscribe('_peer/disconnect', onDisconnect);
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148 | var peer = cloud.httpServer.peers['test-peer'];
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149 | peer.emit('error', new Error('some error'));
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150 | peer.emit('error', new Error('some error'));
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151 | };
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152 |
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153 | var onDisconnect = function(topic, data) {
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154 | assert.equal(data.peer.state, PeerSocket.DISCONNECTED);
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155 | cloud.pubsub.unsubscribe('_peer/disconnect', onDisconnect);
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156 | done();
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157 | };
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158 |
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159 | cloud.pubsub.subscribe('_peer/connect', onConnect);
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160 | });
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161 |
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162 |
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163 | it('http-server should handle multiple end events', function(done) {
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164 | var z = zetta({ registry: new MemRegistry(), peerRegistry: new MemPeerRegistry() })
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165 | .name('test-peer')
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166 | .silent()
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167 | .link(cloudUrl)
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168 | .listen(0);
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169 |
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170 | var onConnect = function(topic, data) {
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171 | assert(cloud.httpServer.peers['test-peer']);
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172 | cloud.pubsub.unsubscribe('_peer/connect', onConnect);
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173 | cloud.pubsub.subscribe('_peer/disconnect', onDisconnect);
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174 | var peer = cloud.httpServer.peers['test-peer'];
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175 | peer.emit('end');
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176 | peer.emit('end');
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177 | };
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178 |
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179 | var onDisconnect = function(topic, data) {
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180 | assert.equal(data.peer.state, PeerSocket.DISCONNECTED);
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181 | cloud.pubsub.unsubscribe('_peer/disconnect', onDisconnect);
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182 | done();
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183 | }
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184 |
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185 | cloud.pubsub.subscribe('_peer/connect', onConnect)
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186 | });
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187 |
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188 | });
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189 |
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190 | describe('Handle timings with ws connects vs actual peer connects', function() {
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191 | var hub = null;
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192 | beforeEach(function(done) {
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193 | hub = zetta({ registry: new MemRegistry(), peerRegistry: new MemPeerRegistry() })
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194 | .name('peer-1')
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195 | .silent()
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196 | .listen(0, done);
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197 | })
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198 |
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199 | afterEach(function(done) {
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200 | hub.httpServer.server.close();
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201 | done();
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202 | })
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203 |
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204 | it('peer connects should be the same peer object on the cloud', function(done) {
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205 | var client = new PeerClient(cloudUrl, hub);
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206 |
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207 | cloud.pubsub.subscribe('_peer/connect', function(topic, data) {
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208 | assert(data.peer === cloud.httpServer.peers['peer-1']);
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209 | done();
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210 | });
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211 |
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212 | client.start();
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213 | })
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214 |
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215 | it('peer connects should be the same peer object on the cloud with reconnect', function(done) {
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216 | var client = new PeerClient(cloudUrl, hub);
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217 |
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218 | var count = 0;
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219 | cloud.pubsub.subscribe('_peer/connect', function(topic, data) {
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220 | count++;
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221 | assert(data.peer === cloud.httpServer.peers['peer-1']);
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222 | if (count === 2) {
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223 | return done();
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224 | }
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225 | cloud.httpServer.peers['peer-1'].close();
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226 | });
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227 | client.start();
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228 | });
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229 |
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230 | it('peer connects should be the same peer object on the cloud with reconnect with timing issue', function(done) {
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231 | this.timeout(5000);
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232 | var client = new PeerClient(cloudUrl, hub);
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233 |
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234 | var lastPeer = null;
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235 | var count = 0;
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236 | cloud.pubsub.subscribe('_peer/connect', function(topic, data) {
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237 | count++;
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238 | assert(data.peer === cloud.httpServer.peers['peer-1']);
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239 | if (count === 1) {
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240 | lastPeer = data.peer;
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241 | cloud.httpServer.peers['peer-1'].close();
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242 |
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243 | client.once('connecting', function() {
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244 | var origRequest = client.onRequest;
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245 | client.server.removeListener('request', client.onRequest);
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246 | client.onRequest = function(req, res) {
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247 | client.ws.close();
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248 | };
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249 | client.server.once('request', client.onRequest.bind(client));
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250 | })
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251 |
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252 | } else if (count === 2) {
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253 | assert(data.peer === lastPeer, 'a new PeerSocket on the cloud was created instead of a reuse');
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254 | done();
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255 | }
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256 | });
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257 | client.start();
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258 | });
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259 |
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260 |
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261 | });
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262 |
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263 | })
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