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6 | 'use strict';
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7 |
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8 | const should = require('./init.js');
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9 | const List = require('../lib/list');
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10 | const parentRefHelper = require('./helpers/setup-parent-ref');
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11 | const {ModelBuilder} = require('../lib/model-builder');
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12 |
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13 | const builder = new ModelBuilder();
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14 |
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15 |
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16 |
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17 |
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18 | class Phone {
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19 | constructor(label, num) {
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20 | this.label = label;
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21 | this.num = num;
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22 | }
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23 |
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24 | toJSON() {
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25 | return {
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26 | label: this.label,
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27 | num: this.num,
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28 | };
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29 | }
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30 | }
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31 |
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32 |
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33 |
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34 |
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35 |
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36 | Phone.modelBuilder = builder;
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37 |
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38 |
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39 |
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40 |
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41 |
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42 |
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43 | function PhoneCtor(label, num) {
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44 | if (!(this instanceof PhoneCtor)) {
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45 | return new PhoneCtor(label, num);
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46 | }
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47 | this.label = label;
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48 | this.num = num;
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49 | }
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50 |
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51 |
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52 |
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53 |
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54 |
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55 | PhoneCtor.modelBuilder = builder;
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56 |
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57 | describe('Does not break default Array functionality', function() {
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58 | it('allows creating an empty length with a specified length', function() {
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59 | const list = new List(4);
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60 | list.should.be.an.instanceOf(Array);
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61 | list.length.should.be.eql(4);
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62 | should.not.exist(list.itemType);
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63 | list.toJSON().should.eql([undefined, undefined, undefined, undefined]);
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64 | });
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65 | });
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66 |
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67 | describe('list of items typed by a class', function() {
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68 | parentRefHelper(() => builder);
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69 | it('allows itemType to be a class', function() {
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70 | const phones = givenPhones();
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71 |
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72 | const list = new List(phones, Phone);
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73 | list.should.be.an.instanceOf(Array);
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74 | list.toJSON().should.be.eql(phones);
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75 | });
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76 |
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77 | it('converts items of plain json to the itemType', function() {
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78 | const phones = givenPhonesAsJSON();
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79 |
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80 | const list = new List(phones, Phone);
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81 | list[0].should.be.an.instanceOf(Phone);
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82 | });
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83 |
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84 | it('converts stringified items to the itemType', function() {
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85 | const phones = givenPhonesAsJSON();
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86 |
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87 | const list = new List(JSON.stringify(phones), Phone);
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88 | list[0].should.be.an.instanceOf(Phone);
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89 | });
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90 |
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91 | it('converts items of plain json to the itemType with push', function() {
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92 | const phones = givenPhonesAsJSON();
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93 |
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94 | const list = new List([], Phone);
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95 | list.push(phones[0]);
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96 | list[0].should.be.an.instanceOf(Phone);
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97 | });
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98 |
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99 | it('should assign the list\'s parent as parent to every child element', () => {
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100 | const phones = givenPhones();
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101 | const listParent = {name: 'PhoneBook'};
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102 | const list = new List(phones, Phone, listParent);
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103 | list.forEach((listItem) => {
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104 | listItem.should.have.property('__parent').which.equals(listParent);
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105 | });
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106 | });
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107 |
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108 | it('should assign the list\'s parent as element parent with push', () => {
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109 | const phones = givenPhonesAsJSON();
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110 | const listParent = {name: 'PhoneBook'};
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111 | const list = new List([], Phone, listParent);
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112 | list.push(phones[0], phones[1]);
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113 | list.forEach((listItem) => {
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114 | listItem.should.have.property('__parent').which.equals(listParent);
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115 | });
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116 | });
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117 | });
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118 |
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119 | describe('list of items typed by a ctor', function() {
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120 | parentRefHelper(() => builder);
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121 | it('allows itemType to be a ctor', function() {
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122 | const phones = givenPhonesWithCtor();
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123 |
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124 | const list = new List(phones, PhoneCtor);
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125 | list.should.be.an.instanceOf(Array);
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126 | list.toJSON().should.be.eql(phones);
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127 | });
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128 |
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129 | it('converts items of plain json to the itemType', function() {
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130 | const phones = givenPhonesAsJSON();
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131 |
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132 | const list = new List(phones, PhoneCtor);
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133 | list[0].should.be.an.instanceOf(PhoneCtor);
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134 | });
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135 |
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136 | it('converts stringified items to the itemType', function() {
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137 | const phones = givenPhonesAsJSON();
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138 |
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139 | const list = new List(JSON.stringify(phones), PhoneCtor);
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140 | list[0].should.be.an.instanceOf(PhoneCtor);
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141 | });
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142 |
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143 | it('converts items of plain json to the itemType with push', function() {
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144 | const phones = givenPhonesAsJSON();
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145 |
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146 | const list = new List([], PhoneCtor);
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147 | list.push(phones[0]);
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148 | list[0].should.be.an.instanceOf(PhoneCtor);
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149 | });
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150 |
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151 | it('should assign the list\'s parent as parent to every child element', () => {
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152 | const phones = givenPhones();
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153 | const listParent = {name: 'PhoneBook'};
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154 | const list = new List(phones, PhoneCtor, listParent);
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155 | list.forEach((listItem) => {
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156 | listItem.should.have.property('__parent').which.equals(listParent);
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157 | });
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158 | });
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159 |
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160 | it('should assign the list\'s parent as element parent with push', () => {
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161 | const phones = givenPhonesAsJSON();
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162 | const listParent = {name: 'PhoneBook'};
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163 | const list = new List([], PhoneCtor, listParent);
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164 | list.push(phones[0], phones[1]);
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165 | list.forEach((listItem) => {
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166 | listItem.should.have.property('__parent').which.equals(listParent);
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167 | });
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168 | });
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169 | });
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170 |
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171 | function givenPhones() {
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172 | return [
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173 | new Phone('home', '111-222-3333'),
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174 | new Phone('work', '111-222-5555'),
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175 | ];
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176 | }
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177 |
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178 | function givenPhonesWithCtor() {
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179 | return [
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180 | new PhoneCtor('home', '111-222-3333'),
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181 | PhoneCtor('work', '111-222-5555'),
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182 | ];
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183 | }
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184 |
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185 | function givenPhonesAsJSON() {
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186 | return [
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187 | {label: 'home', num: '111-222-3333'},
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188 | {label: 'work', num: '111-222-5555'},
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189 | ];
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190 | }
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