1 | var Runtime = require('../lib/runtime');
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2 | var assert = require('assert');
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3 | var Registry = require('./fixture/mem_registry');
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4 | var EventEmitter = require('events').EventEmitter;
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5 |
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6 | describe('Runtime', function(){
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7 | describe('Reactive', function(done){
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8 | var runtime = null;
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9 | beforeEach(function() {
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10 | var reg = new Registry();
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11 | runtime = new Runtime({registry: reg});
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12 | });
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13 |
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14 | it('implements the filter method.', function() {
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15 | assert.ok(runtime.filter);
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16 | });
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17 |
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18 | it('implements the map method.', function() {
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19 | assert.ok(runtime.map);
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20 | });
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21 |
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22 | it('implements the zip method.', function() {
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23 | assert.ok(runtime.zip);
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24 | });
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25 |
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26 | it('implements the subscribe method.', function() {
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27 | assert.ok(runtime.subscribe);
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28 | });
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29 |
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30 | it('implements the observe method.', function() {
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31 | assert.ok(runtime.observe);
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32 | });
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33 |
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34 | it('calls the calls the filter method on deviceready', function() {
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35 | var d = { type: 'test' };
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36 |
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37 | runtime
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38 | .filter(function(e) {
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39 | assert.equal(e.type, 'test');
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40 | done();
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41 | });
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42 |
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43 | runtime.emit('deviceready', d);
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44 | });
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45 |
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46 | it('calls subscribe when the observable chain is complete.', function(done) {
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47 | var d = { type: 'test' };
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48 | runtime
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49 | .subscribe(function(d) {
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50 | assert.equal(d.type, 'test');
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51 | done();
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52 | });
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53 |
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54 | runtime.emit('deviceready', d);
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55 | });
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56 |
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57 | it('calls map on the observable chain when an event occurs', function(done) {
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58 | var d = { type: 'test' };
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59 | runtime
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60 | .map(function(d) {
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61 | assert.equal(d.type, 'test');
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62 | return d;
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63 | })
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64 | .subscribe(function(x) {
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65 | assert.equal(x.type, 'test');
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66 | done();
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67 | });
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68 |
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69 | runtime.emit('deviceready', d);
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70 |
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71 | });
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72 |
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73 | it('only calls zip when all conditions are fulfilled.', function(done) {
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74 | var d1 = { type: 'test' };
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75 | var d2 = { type: 'test2' };
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76 |
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77 | var filter2 = runtime.filter(function(d) {
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78 | return d.type == 'test2';
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79 | });
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80 |
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81 | runtime
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82 | .filter(function(d) {
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83 | return d.type == 'test';
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84 | }).zip(filter2, function(){
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85 | return arguments;
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86 | })
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87 | .subscribe(function(x) {
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88 | assert.equal(x[0].type, 'test');
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89 | assert.equal(x[1].type, 'test2');
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90 | done();
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91 | });
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92 |
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93 | runtime.emit('deviceready', d1);
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94 | runtime.emit('deviceready', d2);
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95 | });
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96 |
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97 | describe('Runtime#observe', function() {
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98 | it('returns a Subscription when a subscribe function is provided', function() {
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99 | var q = runtime.where({ type: 'test' });
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100 |
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101 | var sub = runtime.observe(q, function(device) {
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102 |
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103 | });
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104 |
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105 | assert(typeof(sub.dispose) === 'function');
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106 | });
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107 |
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108 | it('returns an Observable when a subscribe function is not provided', function() {
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109 | var q = runtime.where({ type: 'test' });
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110 |
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111 | var obs = runtime.observe(q);
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112 |
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113 | assert(typeof(obs.subscribe) === 'function');
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114 | });
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115 |
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116 | it('will take a single query as the first argument', function(done) {
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117 | var q = runtime.where({ type: 'test' });
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118 | var d = { type: 'test' };
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119 |
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120 | runtime.observe(q, function(device) {
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121 | assert.equal(device.type, 'test');
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122 | done();
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123 | });
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124 |
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125 | runtime.emit('deviceready', d);
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126 | });
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127 |
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128 | it('will call the observe callback when the query is fullfilled.', function(done) {
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129 | var q = runtime.where({type: 'test'});
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130 | var d = { type: 'test' };
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131 | runtime.observe([q], function(device) {
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132 | assert.equal(device.type, 'test');
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133 | done();
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134 | });
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135 |
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136 | runtime.emit('deviceready', d);
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137 | });
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138 |
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139 | it('will call the observe callback when all queries are fullfilled.', function(done) {
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140 | var q1 = runtime.where({ type: 'test1' });
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141 | var q2 = runtime.where({ type: 'test2' });
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142 |
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143 | var d1 = { type: 'test1' };
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144 | var d2 = { type: 'test2' };
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145 |
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146 | runtime.observe([q1, q2], function(one, two) {
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147 | assert.equal(one.type, 'test1');
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148 | assert.equal(two.type, 'test2');
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149 | done();
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150 | });
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151 |
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152 | runtime.emit('deviceready', d1);
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153 | runtime.emit('deviceready', d2);
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154 | });
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155 |
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156 | it('will call the observe callback when all queries are fullfilled, and when events happen in any order', function(done) {
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157 | var q1 = runtime.where({ type: 'test1' });
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158 | var q2 = runtime.where({ type: 'test2' });
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159 |
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160 | var d1 = { type: 'test1' };
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161 | var d2 = { type: 'test2' };
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162 |
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163 | runtime.observe([q1, q2], function(one, two) {
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164 | assert.equal(one.type, 'test1');
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165 | assert.equal(two.type, 'test2');
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166 | done();
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167 | });
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168 |
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169 | runtime.emit('deviceready', d2);
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170 | runtime.emit('deviceready', d1);
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171 | });
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172 |
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173 | it('will fire if a device exists in the registry and doesn\'t call deviceready', function(done) {
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174 | runtime._jsDevices['1'] = { id: '1', type: 'test1' };
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175 |
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176 | var q1 = runtime.where({ type: 'test1' });
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177 | var q2 = runtime.where({ type: 'test2' });
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178 |
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179 | var d2 = { type: 'test2' };
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180 |
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181 | runtime.observe([q1, q2], function(one, two) {
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182 | assert.equal(one.type, 'test1');
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183 | assert.equal(two.type, 'test2');
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184 | done();
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185 | });
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186 |
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187 | runtime.emit('deviceready', d2);
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188 | });
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189 | });
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190 |
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191 | describe('Extended reactive syntax', function() {
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192 | it('will respond the same way using the extended reactive syntax.', function(done) {
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193 | runtime
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194 | .filter(function(d) {
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195 | return d.type === 'test1';
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196 | })
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197 | .zip(runtime.filter(function(d){
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198 | return d.type === 'test2';
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199 | }), function() {
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200 | return Array.prototype.slice.call(arguments);
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201 | })
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202 | .subscribe(function(x) {
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203 | var devOne = x[0];
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204 | var devTwo = x[1];
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205 | assert.equal(devOne.type, 'test1');
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206 | assert.equal(devTwo.type, 'test2');
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207 | done();
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208 | });
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209 |
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210 | var d1 = { type: 'test1' };
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211 | var d2 = { type: 'test2' };
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212 |
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213 | runtime.emit('deviceready', d1);
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214 | runtime.emit('deviceready', d2);
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215 | });
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216 |
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217 | it('take will only fire with one pair.', function(done) {
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218 | var emitter = new EventEmitter();
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219 | var fired = 0;
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220 | runtime
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221 | .filter(function(d) {
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222 | return d.type === 'test1';
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223 | })
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224 | .zip(runtime.filter(function(d){
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225 | return d.type === 'test2';
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226 | }), function() {
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227 | return Array.prototype.slice.call(arguments);
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228 | })
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229 | .take(1)
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230 | .subscribe(function(x) {
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231 | var devOne = x[0];
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232 | var devTwo = x[1];
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233 | assert.equal(devOne.type, 'test1');
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234 | assert.equal(devTwo.type, 'test2');
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235 | fired++;
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236 | emitter.on('complete', function() {
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237 | assert.equal(fired, 1);
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238 | done();
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239 | });
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240 | });
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241 |
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242 | var d1 = { type: 'test1' };
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243 | var d2 = { type: 'test2' };
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244 |
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245 | runtime.emit('deviceready', d1);
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246 | runtime.emit('deviceready', d2);
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247 | runtime.emit('deviceready', d1);
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248 | runtime.emit('deviceready', d2);
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249 | emitter.emit('complete');
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250 | });
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251 |
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252 | it('will only fire take one time', function(done) {
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253 | var d = { type: 'test' };
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254 | var fired = 0;
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255 | var emitter = new EventEmitter();
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256 | runtime
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257 | .take(1)
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258 | .subscribe(function(x) {
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259 | assert.equal(x.type, 'test');
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260 | fired++;
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261 | emitter.on('complete', function(){
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262 | assert.equal(fired, 1);
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263 | done();
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264 | });
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265 | });
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266 |
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267 | runtime.emit('deviceready', d);
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268 | emitter.emit('complete');
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269 | });
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270 |
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271 | it('will only fire take twice.', function(done) {
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272 | var d = { type: 'test' };
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273 | var fired = 0;
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274 | var emitter = new EventEmitter();
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275 | runtime
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276 | .take(2)
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277 | .subscribe(function(x) {
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278 | assert.equal(x.type, 'test');
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279 | fired++;
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280 | if(fired > 1) {
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281 | emitter.on('complete', function(){
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282 | assert.equal(fired, 2);
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283 | done();
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284 | });
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285 | }
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286 | });
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287 |
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288 | runtime.emit('deviceready', d);
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289 | runtime.emit('deviceready', d);
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290 | runtime.emit('deviceready', d);
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291 | emitter.emit('complete');
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292 | });
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293 |
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294 |
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295 |
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296 | });
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297 | });
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298 | });
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299 |
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